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42 Draconis b - Wikipedia
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data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> <div id="mw-indicator-01-sky-coordinates" class="mw-indicator"><div class="mw-parser-output"><style data-mw-deduplicate="TemplateStyles:r1101677807">.mw-parser-output .sky-coordinates-display{line-height:1.5em;text-align:right;text-indent:0;text-transform:none;white-space:nowrap}body.skin-vector-legacy .mw-parser-output .sky-coordinates-display{font-size:85%}</style><span class="sky-coordinates-display plainlinks nourlexpansion"><a href="/wiki/Celestial_coordinate_system" class="mw-redirect" title="Celestial coordinate system">Coordinates</a>: <span typeof="mw:File"><span title="Sky map"><img alt="Sky map" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Jupiter_and_moon.png/20px-Jupiter_and_moon.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Jupiter_and_moon.png/30px-Jupiter_and_moon.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Jupiter_and_moon.png/40px-Jupiter_and_moon.png 2x" data-file-width="128" data-file-height="128" /></span></span> <a rel="nofollow" class="external text" href="http://www.wikisky.org/?ra=18.433093916667&de=65.563480555556&zoom=4&show_grid=1&show_constellation_lines=1&show_constellation_boundaries=1&show_const_names=1&show_galaxies=1&img_source=IMG_all">18<sup>h</sup> 25<sup>m</sup> 59.1381<sup>s</sup>, +65° 33′ 48.530″</a></span></div></div> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Extrasolar planet in the constellation Draco</div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">"Orbitar" redirects here. For the video game weapon, see <a href="/wiki/Kid_Icarus:_Uprising" title="Kid Icarus: Uprising">Kid Icarus: Uprising</a>.</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox"><caption class="infobox-title fn org">42 Draconis b / Orbitar</caption><tbody><tr><th colspan="2" class="infobox-header" style="background-color:#E0CCFF">Discovery</th></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><a href="/wiki/List_of_minor_planet_discoverers" title="List of minor planet discoverers">Discovered by</a></th><td class="infobox-data">Doellinger et al.</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><a href="/wiki/List_of_observatory_codes" title="List of observatory codes">Discovery site</a></th><td class="infobox-data">TLS</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;">Discovery date</th><td class="infobox-data">March 20, 2009</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Methods_of_detecting_exoplanets" title="Methods of detecting exoplanets">Detection method</a></div></th><td class="infobox-data"><a href="/wiki/Radial_velocity_method" class="mw-redirect" title="Radial velocity method">radial velocity</a></td></tr><tr><th colspan="2" class="infobox-header" style="background-color:#E0CCFF"><a href="/wiki/Osculating_orbit" title="Osculating orbit">Orbital characteristics</a></th></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><a href="/wiki/Perihelion_and_aphelion" class="mw-redirect" title="Perihelion and aphelion">Apastron</a></th><td class="infobox-data">1.64 AU (245,000,000 km)</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><a href="/wiki/Perihelion_and_aphelion" class="mw-redirect" title="Perihelion and aphelion">Periastron</a></th><td class="infobox-data">0.74 AU (111,000,000 km)</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Semi-major_and_semi-minor_axes" title="Semi-major and semi-minor axes">Semi-major axis</a></div></th><td class="infobox-data">1.19 ± 0.01 AU (178,000,000 ± 1,500,000 km)</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><a href="/wiki/Orbital_eccentricity" title="Orbital eccentricity">Eccentricity</a></th><td class="infobox-data">0.38 ± 0.06</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Orbital_period" title="Orbital period">Orbital period (sidereal)</a></div></th><td class="infobox-data">479.1 ± 6.2 <a href="/wiki/Day" title="Day">d</a><br />1.312 ± 0.017 <a href="/wiki/Year" title="Year">y</a></td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Apsis" title="Apsis">Time of periastron</a></div></th><td class="infobox-data">2452757.4 ± 3.7</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Argument_of_periapsis" title="Argument of periapsis">Argument of periastron</a></div></th><td class="infobox-data">218.7 ± 10.6</td></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;">Star</th><td class="infobox-data"><a href="/wiki/42_Draconis" title="42 Draconis">42 Draconis</a></td></tr><tr><th colspan="2" class="infobox-header" style="background-color:#E0CCFF"><span class="anchor" id="Infobox_Physical_characteristics"></span><a href="/wiki/Standard_asteroid_physical_characteristics" title="Standard asteroid physical characteristics">Physical characteristics</a></th></tr><tr><th scope="row" class="infobox-label" style="max-width:11em;"><a href="/wiki/Mass" title="Mass">Mass</a></th><td class="infobox-data">≥<span class="nowrap"><span data-sort-value="7000388000000000000♠"></span>3.88<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0.85 <a href="/wiki/Jupiter_mass" title="Jupiter mass"><i>M</i><sub>J</sub></a></span></td></tr><tr><td colspan="2" class="infobox-below"><style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> </div></td></tr></tbody></table> <p><b>42 Draconis b</b> (abbreviated <b>42 Dra b</b>), formally named <b>Orbitar</b> <span class="rt-commentedText nowrap"><span class="IPA nopopups noexcerpt" lang="en-fonipa"><a href="/wiki/Help:IPA/English" title="Help:IPA/English">/<span style="border-bottom:1px dotted"><span title="/ˈ/: primary stress follows">ˈ</span><span title="/ɔːr/: 'ar' in 'war'">ɔːr</span><span title="'b' in 'buy'">b</span><span title="/ɪ/: 'i' in 'kit'">ɪ</span><span title="'t' in 'tie'">t</span><span title="/ɑːr/: 'ar' in 'far'">ɑːr</span></span>/</a></span></span>, is a candidate <a href="/wiki/Extrasolar_planet" class="mw-redirect" title="Extrasolar planet">extrasolar planet</a> located approximately 315 <a href="/wiki/Light_year" class="mw-redirect" title="Light year">light years</a> from Earth in the <a href="/wiki/Constellation" title="Constellation">constellation</a> of <a href="/wiki/Draco_(constellation)" title="Draco (constellation)">Draco</a>. It orbits the 5th <a href="/wiki/Apparent_magnitude" title="Apparent magnitude">magnitude</a> <a href="/wiki/K-type_star" class="mw-redirect" title="K-type star">K-type</a> <a href="/wiki/Giant_star" title="Giant star">giant</a> <a href="/wiki/Star" title="Star">star</a> <a href="/wiki/42_Draconis" title="42 Draconis">42 Draconis</a> with a <a href="/wiki/Orbital_period" title="Orbital period">period</a> of 479 days and 38% <a href="/wiki/Orbital_eccentricity" title="Orbital eccentricity">orbital eccentricity</a>.<sup id="cite_ref-Döllinger2009_1-0" class="reference"><a href="#cite_note-Döllinger2009-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> The planet was discovered using the <a href="/wiki/Doppler_spectroscopy" title="Doppler spectroscopy">radial velocity method</a> on March 20, 2009.<sup id="cite_ref-Döllinger2009_1-1" class="reference"><a href="#cite_note-Döllinger2009-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Following its discovery the planet was designated 42 Draconis b. In July 2014 the <a href="/wiki/International_Astronomical_Union" title="International Astronomical Union">International Astronomical Union</a> launched <a href="/wiki/NameExoWorlds" title="NameExoWorlds">NameExoWorlds</a>, a process for giving proper names to certain exoplanets and their host stars.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The process involved public nomination and voting for the new names.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> In December 2015, the IAU announced the winning name was Orbitar for this planet.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> The winning name was submitted by the Brevard Astronomical Society of <a href="/wiki/Brevard_County,_Florida" title="Brevard County, Florida">Brevard County, Florida</a>, <a href="/wiki/United_States" title="United States">United States</a>.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Orbitar is a contrived word paying homage to the space launch and orbital operations of <a href="/wiki/NASA" title="NASA">NASA</a>.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p><p>A 2021 study found that more recent <a href="/wiki/Doppler_spectroscopy" title="Doppler spectroscopy">radial velocity</a> measurements of 42 Draconis were inconsistent with the proposed planetary orbit, casting serious doubt on 42 Draconis b's existence, but with a two-planet solution still being a possibility. The study suggests that the radial velocity signal is likely caused by a yet unknown stellar phenomenon, which might be common in <a href="/wiki/Giant_star" title="Giant star">giant stars</a>.<sup id="cite_ref-DöllingerHartmann2021_7-0" class="reference"><a href="#cite_note-DöllingerHartmann2021-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=42_Draconis_b&action=edit&section=1" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/HD_139357_b" title="HD 139357 b">HD 139357 b</a></li> <li><a href="/wiki/Iota_Draconis_b" title="Iota Draconis b">Iota Draconis b</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=42_Draconis_b&action=edit&section=2" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239543626"><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-Döllinger2009-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-Döllinger2009_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Döllinger2009_1-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFDöllingerHatzesPasquiniGuenther2009" class="citation journal cs1">Döllinger, M. P.; et al. (2009). <a rel="nofollow" class="external text" href="http://www.aanda.org/articles/aa/full_html/2009/21/aa10837-08/aa10837-08.html">"Planetary companion candidates around the K giant stars 42 Draconis and HD 139357"</a>. <i>Astronomy and Astrophysics</i>. <b>499</b> (3): <span class="nowrap">935–</span>942. <a href="/wiki/ArXiv_(identifier)" class="mw-redirect" title="ArXiv (identifier)">arXiv</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://arxiv.org/abs/0903.3593">0903.3593</a></span>. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2009A&A...499..935D">2009A&A...499..935D</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1051%2F0004-6361%2F200810837">10.1051/0004-6361/200810837</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:15677079">15677079</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Astronomy+and+Astrophysics&rft.atitle=Planetary+companion+candidates+around+the+K+giant+stars+42+Draconis+and+HD+139357&rft.volume=499&rft.issue=3&rft.pages=%3Cspan+class%3D%22nowrap%22%3E935-%3C%2Fspan%3E942&rft.date=2009&rft_id=info%3Aarxiv%2F0903.3593&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A15677079%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1051%2F0004-6361%2F200810837&rft_id=info%3Abibcode%2F2009A%26A...499..935D&rft.aulast=D%C3%B6llinger&rft.aufirst=M.+P.&rft.au=Hatzes%2C+A.+P.&rft.au=Pasquini%2C+L.&rft.au=Guenther%2C+E.+W.&rft.au=Hartmann%2C+M.&rft.au=Girardi%2C+L.&rft_id=http%3A%2F%2Fwww.aanda.org%2Farticles%2Faa%2Ffull_html%2F2009%2F21%2Faa10837-08%2Faa10837-08.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3A42+Draconis+b" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.iau.org/news/pressreleases/detail/iau1404/">NameExoWorlds: An IAU Worldwide Contest to Name Exoplanets and their Host Stars</a>. IAU.org. 9 July 2014</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20150815025117/http://www.nameexoworlds.iau.org/process">"NameExoWorlds"</a>. Archived from <a rel="nofollow" class="external text" href="http://nameexoworlds.iau.org/process">the original</a> on 2015-08-15<span class="reference-accessdate">. Retrieved <span class="nowrap">2015-09-05</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=NameExoWorlds&rft_id=http%3A%2F%2Fnameexoworlds.iau.org%2Fprocess&rfr_id=info%3Asid%2Fen.wikipedia.org%3A42+Draconis+b" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.iau.org/news/pressreleases/detail/iau1514/">Final Results of NameExoWorlds Public Vote Released</a>, International Astronomical Union, 15 December 2015.</span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.brevardastro.org/">Website</a></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20180201043609/http://nameexoworlds.iau.org/names">"NameExoWorlds"</a>. Archived from <a rel="nofollow" class="external text" href="http://nameexoworlds.iau.org/names">the original</a> on 2018-02-01<span class="reference-accessdate">. Retrieved <span class="nowrap">2015-12-18</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=NameExoWorlds&rft_id=http%3A%2F%2Fnameexoworlds.iau.org%2Fnames&rfr_id=info%3Asid%2Fen.wikipedia.org%3A42+Draconis+b" class="Z3988"></span></span> </li> <li id="cite_note-DöllingerHartmann2021-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-DöllingerHartmann2021_7-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDöllingerHartmann2021" class="citation journal cs1">Döllinger, M. P.; Hartmann, M. (September 2021). <a rel="nofollow" class="external text" href="https://doi.org/10.3847%2F1538-4365%2Fac081a">"A Sanity Check for Planets around Evolved Stars"</a>. <i><a href="/wiki/The_Astrophysical_Journal_Supplement_Series" class="mw-redirect" title="The Astrophysical Journal Supplement Series">The Astrophysical Journal Supplement Series</a></i>. <b>256</b> (1): 10. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2021ApJS..256...10D">2021ApJS..256...10D</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.3847%2F1538-4365%2Fac081a">10.3847/1538-4365/ac081a</a></span>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:237369556">237369556</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Astrophysical+Journal+Supplement+Series&rft.atitle=A+Sanity+Check+for+Planets+around+Evolved+Stars&rft.volume=256&rft.issue=1&rft.pages=10&rft.date=2021-09&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A237369556%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.3847%2F1538-4365%2Fac081a&rft_id=info%3Abibcode%2F2021ApJS..256...10D&rft.aulast=D%C3%B6llinger&rft.aufirst=M.+P.&rft.au=Hartmann%2C+M.&rft_id=https%3A%2F%2Fdoi.org%2F10.3847%252F1538-4365%252Fac081a&rfr_id=info%3Asid%2Fen.wikipedia.org%3A42+Draconis+b" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=42_Draconis_b&action=edit&section=3" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFJean_Schneider2011" class="citation web cs1">Jean Schneider (2011). <a rel="nofollow" class="external text" href="https://exoplanet.eu/catalog/42_dra_b--545/">"Notes for Planet 42 Dra b"</a>. <i><a href="/wiki/Extrasolar_Planets_Encyclopaedia" title="Extrasolar Planets Encyclopaedia">Extrasolar Planets Encyclopaedia</a></i><span class="reference-accessdate">. Retrieved <span class="nowrap">3 October</span> 2011</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Extrasolar+Planets+Encyclopaedia&rft.atitle=Notes+for+Planet+42+Dra+b&rft.date=2011&rft.au=Jean+Schneider&rft_id=https%3A%2F%2Fexoplanet.eu%2Fcatalog%2F42_dra_b--545%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3A42+Draconis+b" class="Z3988"></span></li></ul> <p><br /> </p> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist 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.navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Constellation_of_Draco304" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style="text-align: center;"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Draco_(constellation)" title="Template:Draco (constellation)"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Draco_(constellation)" title="Template talk:Draco (constellation)"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Draco_(constellation)" title="Special:EditPage/Template:Draco (constellation)"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Constellation_of_Draco304" style="font-size:114%;margin:0 4em"><a href="/wiki/Draco_(constellation)" title="Draco (constellation)">Constellation of Draco</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2" style="text-align: center;"><div> <ul><li><a href="/wiki/List_of_stars_in_Draco" title="List of stars in Draco">List of stars in Draco</a></li> <li><a href="/wiki/Draco_in_Chinese_astronomy" title="Draco in Chinese astronomy">Draco in Chinese astronomy</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:55px"><a href="/wiki/Star" title="Star">Stars</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:70px"><a href="/wiki/Bayer_designation" title="Bayer designation">Bayer</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Thuban" title="Thuban">α (Thuban)</a></li> <li><a href="/wiki/Beta_Draconis" title="Beta Draconis">β (Rastaban)</a></li> <li><a href="/wiki/Gamma_Draconis" title="Gamma Draconis">γ (Eltanin)</a></li> <li><a href="/wiki/Delta_Draconis" title="Delta Draconis">δ (Altais)</a></li> <li><a href="/wiki/Epsilon_Draconis" title="Epsilon Draconis">ε <i>(Tyl)</i></a></li> <li><a href="/wiki/Zeta_Draconis" title="Zeta Draconis">ζ (Aldhibah)</a></li> <li><a href="/wiki/Eta_Draconis" title="Eta Draconis">η (Athebyne)</a></li> <li><a href="/wiki/Theta_Draconis" title="Theta Draconis">θ</a></li> <li><a href="/wiki/Iota_Draconis" title="Iota Draconis">ι (Edasich)</a></li> <li><a href="/wiki/Kappa_Draconis" title="Kappa Draconis">κ</a></li> <li><a href="/wiki/Lambda_Draconis" title="Lambda Draconis">λ (Giausar)</a></li> <li><a href="/wiki/Mu_Draconis" title="Mu Draconis">μ (Alrakis)</a></li> <li><a href="/wiki/Nu_Draconis" title="Nu Draconis">ν <i>(Kuma)</i></a></li> <li><a href="/wiki/Xi_Draconis" title="Xi Draconis">ξ (Grumium)</a></li> <li><a href="/wiki/Omicron_Draconis" title="Omicron Draconis">ο</a></li> <li><a href="/wiki/Pi_Draconis" title="Pi Draconis">π</a></li> <li><a href="/wiki/Rho_Draconis" title="Rho Draconis">ρ</a></li> <li><a href="/wiki/Sigma_Draconis" title="Sigma Draconis">σ (Alsafi)</a></li> <li><a href="/wiki/Tau_Draconis" title="Tau Draconis">τ</a></li> <li><a href="/wiki/Upsilon_Draconis" title="Upsilon Draconis">υ</a></li> <li><a href="/wiki/Phi_Draconis" title="Phi Draconis">φ</a></li> <li><a href="/wiki/Chi_Draconis" title="Chi Draconis">χ</a></li> <li><a href="/wiki/Psi1_Draconis" title="Psi1 Draconis">ψ<sup>1</sup> (Dziban)</a></li> <li><a href="/wiki/Psi2_Draconis" title="Psi2 Draconis">ψ<sup>2</sup></a></li> <li><a href="/wiki/Omega_Draconis" title="Omega Draconis">ω</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px"><a href="/wiki/Flamsteed_designation" title="Flamsteed designation">Flamsteed</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/6_Draconis" title="6 Draconis">6</a></li> <li><a href="/wiki/7_Draconis" title="7 Draconis">7 (Tianyi)</a></li> <li><a href="/wiki/8_Draconis" title="8 Draconis">8 (Taiyi)</a></li> <li><a href="/wiki/10_Draconis" title="10 Draconis">10 (i)</a></li> <li><a href="/wiki/15_Draconis" title="15 Draconis">15 (A)</a></li> <li><a href="/wiki/18_Draconis" title="18 Draconis">18 (g)</a></li> <li><a href="/wiki/19_Draconis" title="19 Draconis">19 (h)</a></li> <li><a href="/wiki/26_Draconis" title="26 Draconis">26</a></li> <li><a href="/wiki/36_Draconis" title="36 Draconis">36</a></li> <li><a href="/wiki/39_Draconis" title="39 Draconis">39 (b)</a></li> <li><a href="/wiki/42_Draconis" title="42 Draconis">42 (Fafnir)</a></li> <li><a href="/wiki/45_Draconis" title="45 Draconis">45 (d)</a></li> <li><a href="/wiki/64_Draconis" title="64 Draconis">64 (e)</a></li> <li><a href="/wiki/68_Draconis" title="68 Draconis">68</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px"><a href="/wiki/Variable_star_designation" class="mw-redirect" title="Variable star designation">Variable</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HD_139319" title="HD 139319">TW</a></li> <li><a href="/wiki/AG_Draconis" title="AG Draconis">AG</a></li> <li><a href="/wiki/BY_Draconis" title="BY Draconis">BY</a></li> <li><a href="/wiki/CL_Draconis" title="CL Draconis">CL</a></li> <li><a href="/wiki/CM_Draconis" title="CM Draconis">CM</a></li> <li><a href="/wiki/CX_Draconis" title="CX Draconis">CX</a></li> <li><a href="/wiki/DO_Draconis" class="mw-redirect" title="DO Draconis">DO</a></li> <li><a href="/wiki/GSC_03549-02811" title="GSC 03549-02811">V581</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px"><a href="/wiki/Bright_Star_Catalogue" title="Bright Star Catalogue">HR</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HD_81817" title="HD 81817">3751</a></li> <li><a href="/wiki/HD_91190" title="HD 91190">4126</a></li> <li><a href="/wiki/HD_113337" title="HD 113337">4934</a></li> <li><a href="/wiki/HD_139357" title="HD 139357">5811</a></li> <li><a href="/wiki/HD_151613" title="HD 151613">6237</a></li> <li><a href="/wiki/Alruba" title="Alruba">6618 (Alruba)</a></li> <li><a href="/wiki/HD_167042" title="HD 167042">6817</a></li> <li><a href="/wiki/HD_175535" title="HD 175535">7137</a></li> <li><a href="/wiki/HD_193664" title="HD 193664">7783</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px"><a href="/wiki/Henry_Draper_Catalogue" title="Henry Draper Catalogue">HD</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HIP_56948" title="HIP 56948">101364</a></li> <li><a href="/wiki/HD_147379" title="HD 147379">147379</a></li> <li><a href="/wiki/HD_156279" title="HD 156279">156279</a></li> <li><a href="/wiki/HD_158259" title="HD 158259">158259</a></li> <li><a href="/wiki/HD_176693" title="HD 176693">176693</a></li> <li><a href="/wiki/HD_191939" title="HD 191939">191939</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px">Other</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/2MASS_1237%2B6526" title="2MASS 1237+6526">2MASS 1237+6526</a></li> <li><a href="/wiki/2MASS_J17554042%2B6551277" class="mw-redirect" title="2MASS J17554042+6551277">2MASS J17554042+6551277</a></li> <li><a href="/wiki/G_240-72" title="G 240-72">G 240-72</a></li> <li><a href="/wiki/GD_356" title="GD 356">GD 356</a></li> <li><a href="/wiki/Gliese_420" class="mw-redirect" title="Gliese 420">Gliese 420</a></li> <li><a href="/wiki/Gliese_625" title="Gliese 625">Gliese 625</a></li> <li><a href="/wiki/Gliese_687" title="Gliese 687">Gliese 687</a></li> <li><a href="/wiki/GRW_%2B70_8247" title="GRW +70 8247">GRW +70 8247</a></li> <li><a href="/wiki/Kepler-4" title="Kepler-4">Kepler-4</a></li> <li><a href="/wiki/Kepler-10" title="Kepler-10">Kepler-10</a></li> <li><a href="/wiki/Kepler-12" title="Kepler-12">Kepler-12</a></li> <li><a href="/wiki/Kepler-90" title="Kepler-90">Kepler-90</a></li> <li><a href="/wiki/Kepler-296" title="Kepler-296">Kepler-296</a></li> <li><a href="/wiki/LP_71-82" title="LP 71-82">LP 71-82</a></li> <li><a href="/wiki/Qatar-1" title="Qatar-1">Qatar-1</a></li> <li><a href="/wiki/Struve_2398" title="Struve 2398">Struve 2398</a></li> <li><a href="/wiki/TOI-1136" title="TOI-1136">TOI-1136</a></li> <li><a href="/wiki/WISEPA_J164715.59%2B563208.2" class="mw-redirect" title="WISEPA J164715.59+563208.2">WISE 1647+5632</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Exoplanets14" scope="row" class="navbox-group" style="width:151px;background: #ddddff;"><a href="/wiki/Exoplanet" title="Exoplanet">Exoplanets</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a class="mw-selflink selflink">Orbitar</a></li> <li><a href="/wiki/HD_139357_b" title="HD 139357 b">HD 139357 b</a></li> <li><a href="/wiki/HD_167042_b" title="HD 167042 b">HD 167042 b</a></li> <li><a href="/wiki/Iota_Draconis_b" title="Iota Draconis b">Hypatia</a></li> <li><a href="/wiki/Kepler-4b" title="Kepler-4b">Kepler-4b</a></li> <li><a href="/wiki/Kepler-10b" title="Kepler-10b">Kepler-10b</a></li> <li><a href="/wiki/Kepler-10c" title="Kepler-10c">c</a></li> <li><a href="/wiki/Kepler-12b" title="Kepler-12b">Kepler-12b</a></li> <li><a href="/wiki/Kepler-90e" title="Kepler-90e">Kepler-90e</a></li> <li><a href="/wiki/Kepler-90f" title="Kepler-90f">f</a></li> <li><a href="/wiki/Kepler-90g" title="Kepler-90g">g</a></li> <li><a href="/wiki/Kepler-90h" title="Kepler-90h">h</a></li> <li><a href="/wiki/Kepler-90i" title="Kepler-90i">i</a></li> <li><a href="/wiki/TOI-1452_b" title="TOI-1452 b">TOI-1452 b</a></li> <li><a href="/wiki/TrES-2b" title="TrES-2b">TrES-2b</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Star_clusters17" scope="row" class="navbox-group" style="width:151px;background: #ddddff;"><a href="/wiki/Star_cluster" title="Star cluster">Star clusters</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/LAMOST_1" title="LAMOST 1">LAMOST 1</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Nebulae11" scope="row" class="navbox-group" style="width:151px;background: #ddddff;"><a href="/wiki/Nebula" title="Nebula">Nebulae</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/NGC_6742" title="NGC 6742">Abell 50</a></li> <li><a href="/wiki/Cat%27s_Eye_Nebula" title="Cat's Eye Nebula">Cat's Eye Nebula</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:55px"><a href="/wiki/Galaxy" title="Galaxy">Galaxies</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:70px"><a href="/wiki/New_General_Catalogue" title="New General Catalogue">NGC</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/NGC_3147" title="NGC 3147">3147</a></li> <li><a href="/wiki/NGC_4121" title="NGC 4121">4121</a></li> <li><a href="/wiki/NGC_4125" title="NGC 4125">4125</a></li> <li><a href="/wiki/NGC_4236" title="NGC 4236">4236</a></li> <li><a href="/wiki/NGC_4319" title="NGC 4319">4319</a></li> <li><a href="/wiki/NGC_4345" class="mw-redirect" title="NGC 4345">4345</a></li> <li><a href="/wiki/NGC_4513" title="NGC 4513">4513</a></li> <li><a href="/wiki/NGC_4589" title="NGC 4589">4589</a></li> <li><a href="/wiki/NGC_5678" title="NGC 5678">5678</a></li> <li><a href="/wiki/NGC_5777" title="NGC 5777">5777</a></li> <li><a href="/wiki/NGC_5866" title="NGC 5866">5866</a></li> <li><a href="/wiki/NGC_5866B" title="NGC 5866B">5866B</a></li> <li><a href="/wiki/NGC_5879" title="NGC 5879">5879</a></li> <li><a href="/wiki/NGC_5906" class="mw-redirect" title="NGC 5906">5906</a></li> <li><a href="/wiki/NGC_5907" title="NGC 5907">5907</a></li> <li><a href="/wiki/NGC_5949" title="NGC 5949">5949</a></li> <li><a href="/wiki/NGC_5963" title="NGC 5963">5963</a></li> <li><a href="/wiki/NGC_5965" title="NGC 5965">5965</a></li> <li><a href="/wiki/NGC_5982" title="NGC 5982">5982</a></li> <li><a href="/wiki/NGC_5985" title="NGC 5985">5985</a></li> <li><a href="/wiki/NGC_6090" title="NGC 6090">6090</a></li> <li><a href="/wiki/NGC_6248" title="NGC 6248">6248</a></li> <li><a href="/wiki/NGC_6285" title="NGC 6285">6285</a></li> <li><a href="/wiki/NGC_6286" title="NGC 6286">6286</a></li> <li><a href="/wiki/NGC_6338" title="NGC 6338">6338</a></li> <li><a href="/wiki/NGC_6340" title="NGC 6340">6340</a></li> <li><a href="/wiki/NGC_6365" title="NGC 6365">6365</a></li> <li><a href="/wiki/NGC_6373" title="NGC 6373">6373</a></li> <li><a href="/wiki/NGC_6394" title="NGC 6394">6394</a></li> <li><a href="/wiki/NGC_6412" title="NGC 6412">6412</a></li> <li><a href="/wiki/NGC_6503" title="NGC 6503">6503</a></li> <li><a href="/wiki/NGC_6505" title="NGC 6505">6505</a></li> <li><a href="/wiki/NGC_6566" title="NGC 6566">6566</a></li> <li><a href="/wiki/NGC_6621" title="NGC 6621">6621</a></li> <li><a href="/wiki/NGC_6622" title="NGC 6622">6622</a></li> <li><a href="/wiki/NGC_6670" title="NGC 6670">6670</a></li> <li><a href="/wiki/NGC_6676" title="NGC 6676">6676</a></li> <li><a href="/wiki/NGC_6786" title="NGC 6786">6786</a></li> <li><a href="/wiki/NGC_6789" title="NGC 6789">6789</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/1ES_1927%2B654" title="1ES 1927+654">1ES 1927+654</a></li> <li><a href="/wiki/1ES_1959%2B650" title="1ES 1959+650">1ES 1959+650</a></li> <li><a href="/wiki/3C_249.1" title="3C 249.1">3C 249.1</a></li> <li><a href="/wiki/3C_305" title="3C 305">3C 305</a></li> <li><a href="/wiki/3C_319" title="3C 319">3C 319</a></li> <li><a href="/wiki/3C_356" title="3C 356">3C 356</a></li> <li><a href="/wiki/3C_371" title="3C 371">3C 371</a></li> <li><a href="/wiki/3C_380" title="3C 380">3C 380</a></li> <li><a href="/wiki/3C_390.3" title="3C 390.3">3C 390.3</a></li> <li><a href="/wiki/3C_401" title="3C 401">3C 401</a></li> <li><a href="/wiki/4C_%2B72.26" title="4C +72.26">4C +72.26</a></li> <li><a href="/wiki/GB_1508%2B5714" title="GB 1508+5714">GB 1508+5714</a></li> <li><a href="/wiki/H1821%2B643" title="H1821+643">H1821+643</a></li> <li><a href="/wiki/HFLS3" title="HFLS3">HFLS3</a></li> <li><a href="/wiki/KKR_25" title="KKR 25">KKR 25</a></li> <li><a href="/wiki/Markarian_876" title="Markarian 876">Markarian 876</a></li> <li><a href="/wiki/PGC_39058" title="PGC 39058">PGC 39058</a></li> <li><a href="/wiki/S5_1803%2B784" title="S5 1803+784">S5 1803+784</a></li> <li><a href="/wiki/S5_2007%2B777" title="S5 2007+777">S5 2007+777</a></li> <li><a href="/wiki/UGC_9391" title="UGC 9391">UGC 9391</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Galaxy_clusters19" scope="row" class="navbox-group" style="width:151px;background: #ddddff;"><a href="/wiki/Galaxy_cluster" title="Galaxy cluster">Galaxy clusters</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Abell_2218" title="Abell 2218">Abell 2218</a></li> <li><a href="/wiki/CL1358%2B62" title="CL1358+62">CL1358+62</a></li> <li><a href="/wiki/Draco_Supercluster" title="Draco Supercluster">Draco Supercluster</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Astronomical_events52" scope="row" class="navbox-group" style="width:151px;background: #ddddff;"><a href="/wiki/Transient_astronomical_event" class="mw-redirect" title="Transient astronomical event">Astronomical events</a></th><td class="navbox-list-with-group 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