John C. Martin's Homepage - Astronomical Research Programs

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Martin's Homepage - Astronomical Research Programs"><meta property="og:type" content="website"><meta property="og:url" content="https://sites.google.com/a/uis.edu/john-c-martin-s-homepage/research/10-refracting-telescope-the-university-of-minnesota/astronomical-research-programs"><meta property="og:description" content=" There are sixty two (62) identifiable astronomical objects on 406 plates in the collection. We feel that it may be possible to make some guesses about the research programs conducted with the 10" Refractor by analyzing the pattern of objects observed. The most observed object by far was M42 (the"><meta itemprop="name" content="John C. Martin's Homepage - Astronomical Research Programs"><meta itemprop="description" content=" There are sixty two (62) identifiable astronomical objects on 406 plates in the collection. We feel that it may be possible to make some guesses about the research programs conducted with the 10" Refractor by analyzing the pattern of objects observed. The most observed object by far was M42 (the"><meta itemprop="url" content="https://sites.google.com/a/uis.edu/john-c-martin-s-homepage/research/10-refracting-telescope-the-university-of-minnesota/astronomical-research-programs"><link href="https://fonts.googleapis.com/css?family=Lato%3A300%2C300italic%2C400%2C400italic%2C700%2C700italic&display=swap" rel="stylesheet" nonce="Zo4sypuvMkHTrVsrLCz7yg"><link href="https://fonts.googleapis.com/css?family=Google+Sans:400,500|Roboto:300,400,500,700|Source+Code+Pro:400,700&display=swap" rel="stylesheet" nonce="Zo4sypuvMkHTrVsrLCz7yg"><link rel="stylesheet" href="https://www.gstatic.com/_/atari/_/ss/k=atari.vw.7R57rYYVGiA.L.X.O/am=MBiA/d=1/rs=AGEqA5nH97dOwqY0iGblvGlWiaR59owncA" data-id="_cl" nonce="Zo4sypuvMkHTrVsrLCz7yg"><script nonce="_alxIEBoP0O9-n8RR2kpmQ"></script><title>John C. 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click:vHQTA(QwLHlb);"><a class="aJHbb hDrhEe HlqNPb" jsname="QwLHlb" role="link" tabindex="0" data-navtype="1" href="/a/uis.edu/john-c-martin-s-homepage/research/eta-carinae/sequencing-of-stis-observations" data-url="/a/uis.edu/john-c-martin-s-homepage/research/eta-carinae/sequencing-of-stis-observations" data-type="1" data-level="3">Sequencing of STIS Observations</a></div></div></li></ul></div></li><li jsname="ibnC6b" data-nav-level="2"><div class="PsKE7e r8s4j-ibL1re IKA38e baH5ib oNsfjf"><div class="I35ICb" jsaction="keydown:mPuKz(QwLHlb); click:vHQTA(QwLHlb);"><a class="aJHbb hDrhEe HlqNPb" jsname="QwLHlb" role="link" tabindex="0" data-navtype="1" href="/a/uis.edu/john-c-martin-s-homepage/research/abundance-analysis-and-kinematics-of-high-galactic-latitude-b-stars" data-url="/a/uis.edu/john-c-martin-s-homepage/research/abundance-analysis-and-kinematics-of-high-galactic-latitude-b-stars" data-type="1" data-level="2">High Galactic Latitude B Stars</a></div></div></li><li jsname="ibnC6b" data-nav-level="2"><div class="PsKE7e r8s4j-ibL1re IKA38e baH5ib oNsfjf"><div class="I35ICb" jsaction="keydown:mPuKz(QwLHlb); 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click:vHQTA(QwLHlb);"><a class="aJHbb hDrhEe HlqNPb" jsname="QwLHlb" role="link" tabindex="0" data-navtype="1" href="/a/uis.edu/john-c-martin-s-homepage/research/rr-lyrae-kinematics/what-are-kinematics" data-url="/a/uis.edu/john-c-martin-s-homepage/research/rr-lyrae-kinematics/what-are-kinematics" data-type="1" data-level="3">What are "kinematics?"</a></div></div></li><li jsname="ibnC6b" data-nav-level="3"><div class="PsKE7e r8s4j-c5RTEf IKA38e baH5ib oNsfjf"><div class="I35ICb" jsaction="keydown:mPuKz(QwLHlb); click:vHQTA(QwLHlb);"><a class="aJHbb hDrhEe HlqNPb" jsname="QwLHlb" role="link" tabindex="0" data-navtype="1" href="/a/uis.edu/john-c-martin-s-homepage/research/rr-lyrae-kinematics/what-is-an-rr-lyrae" data-url="/a/uis.edu/john-c-martin-s-homepage/research/rr-lyrae-kinematics/what-is-an-rr-lyrae" data-type="1" data-level="3">What Is An RR Lyrae</a></div></div></li><li jsname="ibnC6b" data-nav-level="3"><div class="PsKE7e r8s4j-c5RTEf IKA38e baH5ib oNsfjf"><div class="I35ICb" jsaction="keydown:mPuKz(QwLHlb); click:vHQTA(QwLHlb);"><a class="aJHbb hDrhEe HlqNPb" jsname="QwLHlb" role="link" tabindex="0" data-navtype="1" href="/a/uis.edu/john-c-martin-s-homepage/research/rr-lyrae-kinematics/what-we-learn-from-a-star-s-metal-content" data-url="/a/uis.edu/john-c-martin-s-homepage/research/rr-lyrae-kinematics/what-we-learn-from-a-star-s-metal-content" data-type="1" data-level="3">What we learn from a star's metal content</a></div></div></li></ul></div></li><li jsname="ibnC6b" data-nav-level="2"><div class="PsKE7e r8s4j-ibL1re IKA38e baH5ib oNsfjf"><div class="I35ICb" jsaction="keydown:mPuKz(QwLHlb); click:vHQTA(QwLHlb);"><a class="aJHbb hDrhEe HlqNPb" jsname="QwLHlb" role="link" tabindex="0" data-navtype="1" href="/a/uis.edu/john-c-martin-s-homepage/research/supernova-impostors" data-url="/a/uis.edu/john-c-martin-s-homepage/research/supernova-impostors" data-type="1" data-level="2">Supernova Impostors</a></div></div></li><li jsname="ibnC6b" data-nav-level="2"><div class="PsKE7e r8s4j-ibL1re IKA38e baH5ib oNsfjf"><div class="I35ICb" jsaction="keydown:mPuKz(QwLHlb); 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Martin's Homepage</span></a></div></div><div jsname="mADGA" class="zDUgLc"></div></div><div class="TxnWlb" jsname="BDdyze" jsaction="click:LUvzV"></div><div jscontroller="gK4msf" class="RBEWZc" jsname="h04Zod" jsaction="rcuQ6b:WYd;JIbuQc:AT95Ub;VbOlFf:HgE5D;FaOgy:HgE5D;MxH79b:JdcaS;" data-side-navigation="true"><div role="button" class="U26fgb mUbCce fKz7Od iWs3gf Wdnjke M9Bg4d" jscontroller="VXdfxd" jsaction="click:cOuCgd; mousedown:UX7yZ; mouseup:lbsD7e; mouseenter:tfO1Yc; mouseleave:JywGue; focus:AHmuwe; blur:O22p3e; contextmenu:mg9Pef;touchstart:p6p2H; touchmove:FwuNnf; touchend:yfqBxc(preventDefault=true); touchcancel:JMtRjd;" jsshadow jsname="R9oOZd" aria-label="Open search bar" aria-disabled="false" tabindex="0" data-tooltip="Open search bar" aria-expanded="false" data-tooltip-vertical-offset="-12" data-tooltip-horizontal-offset="0"><div class="VTBa7b MbhUzd" jsname="ksKsZd"></div><span jsslot class="xjKiLb"><span class="Ce1Y1c" style="top: -12px"><svg class="vu8Pwe tCHXDc YSH9J" viewBox="0 0 24 24" focusable="false"><path d="M15.5 14h-.79l-.28-.27C15.41 12.59 16 11.11 16 9.5 16 5.91 13.09 3 9.5 3S3 5.91 3 9.5 5.91 16 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z"/><path d="M0 0h24v24H0z" fill="none"/></svg></span></span></div><div class="vsGQBe wgxiMe" jsname="AznF2e"></div></div></div><script nonce="_alxIEBoP0O9-n8RR2kpmQ">DOCS_timing['navv'] = new Date().getTime();</script></header><div role="main" tabindex="-1" class="UtePc RCETm yxgWrb" dir="ltr"><section id="h.1feefee985f0576c_391" class="yaqOZd LB7kq gk8rDe" style=""><div class="IFuOkc"></div><div class="mYVXT"><div class="LS81yb VICjCf j5pSsc db35Fc" tabindex="-1"><div class="hJDwNd-AhqUyc-uQSCkd Ft7HRd-AhqUyc-uQSCkd purZT-AhqUyc-II5mzb ZcASvf-AhqUyc-II5mzb pSzOP-AhqUyc-qWD73c Ktthjf-AhqUyc-qWD73c JNdkSc SQVYQc"><div class="JNdkSc-SmKAyb LkDMRd"><div class="" jscontroller="sGwD4d" jsaction="zXBUYb:zTPCnb;zQF9Uc:Qxe3nd;" jsname="F57UId"><div class="oKdM2c ZZyype Kzv0Me"><div id="h.1feefee985f0576c_394" class="hJDwNd-AhqUyc-uQSCkd Ft7HRd-AhqUyc-uQSCkd jXK9ad D2fZ2 zu5uec OjCsFc dmUFtb wHaque g5GTcb JYTMs"><div class="jXK9ad-SmKAyb"><div class="tyJCtd mGzaTb Depvyb baZpAe lkHyyc"><h1 id="h.p_ID_13" dir="ltr" class="CDt4Ke zfr3Q duRjpb" style="text-align: center;">Astronomical Research Programs</h1></div></div></div></div></div></div></div></div></div></section><section id="h.1feefee985f0576c_395" class="yaqOZd" style=""><div class="IFuOkc"></div><div class="mYVXT"><div class="LS81yb VICjCf j5pSsc db35Fc" tabindex="-1"><div class="hJDwNd-AhqUyc-uQSCkd Ft7HRd-AhqUyc-uQSCkd purZT-AhqUyc-II5mzb ZcASvf-AhqUyc-II5mzb pSzOP-AhqUyc-qWD73c Ktthjf-AhqUyc-qWD73c JNdkSc SQVYQc"><div class="JNdkSc-SmKAyb LkDMRd"><div class="" jscontroller="sGwD4d" jsaction="zXBUYb:zTPCnb;zQF9Uc:Qxe3nd;" jsname="F57UId"><div class="oKdM2c ZZyype Kzv0Me"><div id="h.1feefee985f0576c_398" class="hJDwNd-AhqUyc-uQSCkd Ft7HRd-AhqUyc-uQSCkd jXK9ad D2fZ2 zu5uec OjCsFc dmUFtb wHaque g5GTcb JYTMs"><div class="jXK9ad-SmKAyb"><div class="tyJCtd mGzaTb Depvyb baZpAe"><div id="h.p_ID_32" class="CobnVe aP9Z7e"></div><h2 id="h.p_ID_32_l" dir="ltr" class="CDt4Ke zfr3Q JYVBee" tabindex="-1"><div jscontroller="Ae65rd" jsaction="touchstart:UrsOsc; click:KjsqPd; focusout:QZoaZ; mouseover:y0pDld; mouseout:dq0hvd;fv1Rjc:jbFSOd;CrfLRd:SzACGe;" class="CjVfdc"><div class="PPhIP rviiZ" jsname="haAclf"><div role="presentation" class="U26fgb mUbCce fKz7Od LRAOtb Znu9nd M9Bg4d" jscontroller="mxS5xe" jsaction="click:cOuCgd; mousedown:UX7yZ; mouseup:lbsD7e; mouseenter:tfO1Yc; mouseleave:JywGue; focus:AHmuwe; blur:O22p3e; contextmenu:mg9Pef;" jsshadow aria-describedby="h.p_ID_32_l" aria-label="Copy heading link" aria-disabled="false" data-tooltip="Copy heading link" aria-hidden="true" data-tooltip-position="top" data-tooltip-vertical-offset="12" data-tooltip-horizontal-offset="0"><a class="FKF6mc TpQm9d" href="#h.p_ID_32" aria-label="Copy heading link" jsname="hiK3ld" role="button" aria-describedby="h.p_ID_32_l"><div class="VTBa7b MbhUzd" jsname="ksKsZd"></div><span jsslot class="xjKiLb"><span class="Ce1Y1c" style="top: -11px"><svg class="OUGEr QdAdhf" width="22px" height="22px" viewBox="0 0 24 24" fill="currentColor" focusable="false"><path d="M0 0h24v24H0z" fill="none"/><path d="M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1zM8 13h8v-2H8v2zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4c2.76 0 5-2.24 5-5s-2.24-5-5-5z"/></svg></span></span></a></div></div>There are sixty two (62) identifiable astronomical objects on 406 plates in the collection. We feel that it may be possible to make some guesses about the research programs conducted with the 10" Refractor by analyzing the pattern of objects observed.</div></h2><p dir="ltr" class="CDt4Ke zfr3Q">The most observed object by far was M42 (the Orion Nebula) which was imaged on at least 148 of 406 plates ranging in epoch from January 5th, 1897 to March 2nd, 1922. We believe this may have been a program for monitoring the nebula supervised by Dr Francis Preserved Leavenworth since he published several articles on the subject in the Astronomical Journal. Leavenworth once <span class=" aw5Odc" style="text-decoration: underline;"><a class="XqQF9c" href="http://www.google.com/url?q=http%3A%2F%2Fadsabs.harvard.edu%2Fcgi-bin%2Fnph-bib_query%3Fbibcode%3D1897AJ.....18...48L%26db_key%3DAST&sa=D&sntz=1&usg=AOvVaw37llOOydsdmSOdLkLerM4w" target="_blank">reported finding a new star in the Orion Nebula</a></span> and then <span class=" aw5Odc" style="text-decoration: underline;"><a class="XqQF9c" href="http://www.google.com/url?q=http%3A%2F%2Fadsabs.harvard.edu%2Fcgi-bin%2Fnph-bib_query%3Fbibcode%3D1897AJ.....18...48L%26db_key%3DAST&sa=D&sntz=1&usg=AOvVaw37llOOydsdmSOdLkLerM4w" target="_blank">retracted the claim shortly thereafter</a></span>. (Unfortunately the controversial plates are no longer in our collection.) We also know from his published work that Dr Leavenworth conducted a great deal of non-photographic work with the 10" Refractor using a micrometer to measure double stars.</p><p dir="ltr" class="CDt4Ke zfr3Q">The 23 plates of M57 (the Ring Nebula) from April 28th, 1897 to October 24th, 1913 were probably part of a program supervised by Dr Burt Leroy Newkirk. <span class=" aw5Odc" style="text-decoration: underline;"><a class="XqQF9c" href="http://www.google.com/url?q=http%3A%2F%2Fadsabs.harvard.edu%2Fcgi-bin%2Fnph-data_query%3Fbibcode%3D1917PASP...29..260N%26db_key%3DAST%26link_type%3DABSTRACT%26high%3D410fa80aee28655&sa=D&sntz=1&usg=AOvVaw0I1a5A7ASdPJKAGo2QAqyv" target="_blank">We believe he may have been attempting to measure the geometric parrallax of M57.</a></span></p><p dir="ltr" class="CDt4Ke zfr3Q">There are also a series of 35 plates taken of <span class=" aw5Odc" style="text-decoration: underline;"><a class="XqQF9c" href="http://www.google.com/url?q=http%3A%2F%2Fsimbad.u-strasbg.fr%2Fsim-id.pl%3Fprotocol%3Dhtml%26Ident%3DDn%2BGem%26NbIdent%3D1%26Radius%3D10%26Radius.unit%3Darcmin%26CooFrame%3DFK5%26CooEpoch%3D2000%26CooEqui%3D2000%26output.max%3Dall%26o.catall%3Don%26output.mesdisp%3DN%26Bibyear1%3D1983%26Bibyear2%3D2004%26Frame1%3DFK5%26Frame2%3DFK4%26Frame3%3DG%26Equi1%3D2000.0%26Equi2%3D1950.0%26Equi3%3D2000.0%26Epoch1%3D2000.0%26Epoch2%3D1950.0%26Epoch3%3D2000.0&sa=D&sntz=1&usg=AOvVaw3BG-xYfEP3Ax8AF5NfaPZD" target="_blank">Nova Geminorum (DN Gem; HD 50480)</a></span> between August 4th, 1912 and April 24, 1919 which we believe were meant to measure the decline in brightness for this object from its outburst in 1912. However, we can find no record that this data was ever published except for <span class=" aw5Odc" style="text-decoration: underline;"><a class="XqQF9c" href="http://www.google.com/url?q=http%3A%2F%2Fadsabs.harvard.edu%2Fcgi-bin%2Fnph-bib_query%3Fbibcode%3D1913AN....195..221L%26db_key%3DAST&sa=D&sntz=1&usg=AOvVaw1Nv0-PVixwZXCVFBWDowXq" target="_blank">a note in Astronomische Nachrichten about its position</a></span>.</p><p dir="ltr" class="CDt4Ke zfr3Q">The ten (10) plates of asteroids, sixteen (16) plates of comets, and forty four (44) plates of nearby/high proper motion stars, were probably taken for astrometric purposes. Many of these plates have been marked on the non-emulsion side of the plate to note the location of reference stars as one might do prior to measuring the relative positions on a plate. And Dr Leavenworth, William Otis Beal, and Alfred Davis all published papers in the Astronomical Journal reporting the positions and orbits of comets and asteroids using photgraphs made with the 10" Refractor.</p></div></div></div></div></div></div></div></div></div></section><section id="h.1feefee985f0576c_399" class="yaqOZd" style=""><div class="IFuOkc"></div><div class="mYVXT"><div class="LS81yb VICjCf j5pSsc db35Fc" tabindex="-1"><div class="hJDwNd-AhqUyc-OiUrBf Ft7HRd-AhqUyc-OiUrBf purZT-AhqUyc-II5mzb ZcASvf-AhqUyc-II5mzb pSzOP-AhqUyc-qWD73c Ktthjf-AhqUyc-qWD73c JNdkSc SQVYQc"><div class="JNdkSc-SmKAyb LkDMRd"><div class="" jscontroller="sGwD4d" jsaction="zXBUYb:zTPCnb;zQF9Uc:Qxe3nd;" jsname="F57UId"><div class="oKdM2c ZZyype Kzv0Me"><div id="h.1feefee985f0576c_402" class="hJDwNd-AhqUyc-OiUrBf Ft7HRd-AhqUyc-OiUrBf jXK9ad D2fZ2 zu5uec OjCsFc dmUFtb wHaque g5GTcb"><div class="jXK9ad-SmKAyb"><div class="tyJCtd OWlOyc baZpAe"><div jscontroller="VYKRW" jsaction="rcuQ6b:rcuQ6b;"><div class="WIdY2d M1aSXe"><div jsname="WXxXjd" style="padding-top: 491.6883116883%"></div><div class="YMEQtf"><div jsname="jkaScf" jscontroller="szRU7e" class="w536ob" data-enable-interaction="true" data-url="https://1715255627-atari-embeds.googleusercontent.com/embeds/16cb204cf3a9d4d223a0a3fd8b0eec5d/inner-frame-minified.html" data-code="<table xmlns="http://www.w3.org/1999/xhtml" border="1" cellpadding="8" style="font-family:-webkit-standard" data-table-local-id="table-2"> <tbody> <tr> <td> <b> <font color="#444444">Object</font> </b> </td> <td> <b> <font color="#444444">Total</font> </b> </td> <td> <b> <font color="#444444">Earliest</font> </b> </td> <td> <b> <font color="#444444">Latest</font> </b> </td> </tr> <tr> <td> <font color="#444444">32 Cygni</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">25-Oct-1924</font> </td> </tr> <tr> <td> <font color="#444444">55 Cyg</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">25-Sep-1924</font> </td> </tr> <tr> <td> <font color="#444444">598</font> </td> <td> <font color="#444444">2</font> </td> <td> <font color="#444444">22-Sep-1897</font> </td> <td> <font color="#444444">23-Sep-1897</font> </td> </tr> <tr> <td> <font color="#444444">6543 (ra 17h58m; dec +67d)</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">16-Dec-1913</font> </td> </tr> <tr> <td> <font color="#444444">695 (Asteroid?)</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">26-Mar-1940</font> </td> </tr> <tr> <td> <font color="#444444">Asteroid DQ '98</font> </td> <td> <font color="#444444">5</font> </td> <td> <font color="#444444">22-Oct-1898</font> </td> <td> <font color="#444444">09-Nov-1898</font> </td> </tr> <tr> <td> <font color="#444444">Asteroid Fortuna</font> </td> <td> <font color="#444444">2</font> </td> <td> <font color="#444444">08-Oct-1898</font> </td> <td> <font color="#444444">11-Oct-1898</font> </td> </tr> <tr> <td> <font color="#444444">Boss 2475</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">11-Mar-1914</font> </td> </tr> <tr> <td> <font color="#444444">Boss 2479 / BGC 4984</font> </td> <td> <font color="#444444">3</font> </td> <td> <font color="#444444">07-Mar-1915</font> </td> <td> <font color="#444444">13-Mar-1914</font> </td> </tr> <tr> <td> <font color="#444444">Boss 2742</font> </td> <td> <font color="#444444">4</font> </td> <td> <font color="#444444">09-Apr-1914</font> </td> <td> <font color="#444444">20-Apr-1915</font> </td> </tr> <tr> <td> <font color="#444444">Boss 3014</font> </td> <td> <font color="#444444">7</font> </td> <td> <font color="#444444">15-Apr-1914</font> </td> <td> <font color="#444444">25-Apr-1919</font> </td> </tr> <tr> <td> <font color="#444444">Boss 3137</font> </td> <td> <font color="#444444">3</font> </td> <td> <font color="#444444">13-Apr-1914</font> </td> <td> <font color="#444444">26-May-1916</font> </td> </tr> <tr> <td> <font color="#444444">Boss 3448 - 61 Vir</font> </td> <td> <font color="#444444">2</font> </td> <td> <font color="#444444">19-Apr-1914</font> </td> <td> <font color="#444444">25-Apr-1915</font> </td> </tr> <tr> <td> <font color="#444444">Boss 3662</font> </td> <td> <font color="#444444">5</font> </td> <td> <font color="#444444">22-Jan-1914</font> </td> <td> <font color="#444444">26-May-1916</font> </td> </tr> <tr> <td> <font color="#444444">Cluster 7078</font> </td> <td> <font color="#444444">4</font> </td> <td> <font color="#444444">-</font> </td> <td> <font color="#444444">23-Oct-1897</font> </td> </tr> <tr> <td> <font color="#444444">Comet 1910a</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">03-Feb-1910</font> </td> </tr> <tr> <td> <font color="#444444">Comet Brooks</font> </td> <td> <font color="#444444">4</font> </td> <td> <font color="#444444">19-Sep-1911</font> </td> <td> <font color="#444444">01-Nov-1911</font> </td> </tr> <tr> <td> <font color="#444444">Comet Gales</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">13-Oct-1912</font> </td> </tr> <tr> <td> <font color="#444444">Comet Halley</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">26-May-1910</font> </td> </tr> <tr> <td> <font color="#444444">Comet Mellish</font> </td> <td> <font color="#444444">4</font> </td> <td> <font color="#444444">06-Mar-1915</font> </td> <td> <font color="#444444">11-May-1915</font> </td> </tr> <tr> <td> <font color="#444444">Comet Neujmin</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">24-Nov-1913</font> </td> </tr> <tr> <td> <font color="#444444">Comet Timmens</font> </td> <td> <font color="#444444">4</font> </td> <td> <font color="#444444">28-Feb-1946</font> </td> <td> <font color="#444444">02-Mar-1946</font> </td> </tr> <tr> <td> <font color="#444444">Constellation Leo</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">11-Jan-1916</font> </td> </tr> <tr> <td> <font color="#444444">Corvus</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">11-Jun-1918</font> </td> </tr> <tr> <td> <font color="#444444">Epsilon Lyrae</font> </td> <td> <font color="#444444">3</font> </td> <td> <font color="#444444">-</font> </td> <td> <font color="#444444">28-Aug-1897</font> </td> </tr> <tr> <td> <font color="#444444">Goombridge 1830 - Boss 3112</font> </td> <td> <font color="#444444">6</font> </td> <td> <font color="#444444">19-Apr-1914</font> </td> <td> <font color="#444444">27-May-1916</font> </td> </tr> <tr> <td> <font color="#444444">h &amp; chi Per</font> </td> <td> <font color="#444444">9</font> </td> <td> <font color="#444444">21-Oct-1913</font> </td> <td> <font color="#444444">14-Jul-1915</font> </td> </tr> <tr> <td> <font color="#444444">M13</font> </td> <td> <font color="#444444">3</font> </td> <td> <font color="#444444">-</font> </td> <td> <font color="#444444">22-Jan-1914</font> </td> </tr> <tr> <td> <font color="#444444">M17</font> </td> <td> <font color="#444444">2</font> </td> <td> <font color="#444444">16-Jul-1915</font> </td> <td> <font color="#444444">29-Aug-1915</font> </td> </tr> <tr> <td> <font color="#444444">M33 / NGC 598</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">11-Jan-1915</font> </td> </tr> <tr> <td> <font color="#444444">M42</font> </td> <td> <font color="#444444">148</font> </td> <td> <font color="#444444">05-Jan-1897</font> </td> <td> <font color="#444444">02-Mar-1922</font> </td> </tr> <tr> <td> <font color="#444444">M43</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">23-Jan-1915</font> </td> </tr> <tr> <td> <font color="#444444">M57</font> </td> <td> <font color="#444444">23</font> </td> <td> <font color="#444444">28-Apr-1897</font> </td> <td> <font color="#444444">24-Oct-1913</font> </td> </tr> <tr> <td> <font color="#444444">M8</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">25-Aug-1919</font> </td> </tr> <tr> <td> <font color="#444444">Moon</font> </td> <td> <font color="#444444">3</font> </td> <td> <font color="#444444">06-Apr-1911</font> </td> <td> <font color="#444444">07-Jul-1930</font> </td> </tr> <tr> <td> <font color="#444444">NGC 1023</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">18-Dec-1896</font> </td> </tr> <tr> <td> <font color="#444444">NGC 2359</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">05-Mar-1897</font> </td> </tr> <tr> <td> <font color="#444444">NGC 2542</font> </td> <td> <font color="#444444">8</font> </td> <td> <font color="#444444">03-Mar-1897</font> </td> <td> <font color="#444444">16-Mar-1918</font> </td> </tr> <tr> <td> <font color="#444444">NGC 6523</font> </td> <td> <font color="#444444">8</font> </td> <td> <font color="#444444">20-Jun-1897</font> </td> <td> <font color="#444444">04-Sep-1915</font> </td> </tr> <tr> <td> <font color="#444444">NGC 6618 (M17)</font> </td> <td> <font color="#444444">2</font> </td> <td> <font color="#444444">16-Jan-1915</font> </td> <td> <font color="#444444">29-Aug-1915</font> </td> </tr> <tr> <td> <font color="#444444">NGC 6992</font> </td> <td> <font color="#444444">4</font> </td> <td> <font color="#444444">-</font> </td> <td> <font color="#444444">02-Sep-1915</font> </td> </tr> <tr> <td> <font color="#444444">NGC 7023</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">-</font> </td> </tr> <tr> <td> <font color="#444444">NGC 7078</font> </td> <td> <font color="#444444">3</font> </td> <td> <font color="#444444">-</font> </td> <td> <font color="#444444">18-Nov-1899</font> </td> </tr> <tr> <td> <font color="#444444">NGC 7822</font> </td> <td> <font color="#444444">2</font> </td> <td> <font color="#444444">-</font> </td> <td> <font color="#444444">04-Aug-1897</font> </td> </tr> <tr> <td> <font color="#444444">NGC 7989</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">03-Sep-1897</font> </td> </tr> <tr> <td> <font color="#444444">Nova Gem</font> </td> <td> <font color="#444444">35</font> </td> <td> <font color="#444444">04-Aug-1912</font> </td> <td> <font color="#444444">24-Apr-1919</font> </td> </tr> <tr> <td> <font color="#444444">Omega Nebula</font> </td> <td> <font color="#444444">2</font> </td> <td> <font color="#444444">-</font> </td> <td> <font color="#444444">-</font> </td> </tr> <tr> <td> <font color="#444444">Orion 5h37m -1d59m</font> </td> <td> <font color="#444444">2</font> </td> <td> <font color="#444444">26-Jan-1897</font> </td> <td> <font color="#444444">03-Mar-1897</font> </td> </tr> <tr> <td> <font color="#444444">Orion Region</font> </td> <td> <font color="#444444">3</font> </td> <td> <font color="#444444">01-Feb-1909</font> </td> <td> <font color="#444444">10-Mar-1909</font> </td> </tr> <tr> <td> <font color="#444444">Pleiades</font> </td> <td> <font color="#444444">16</font> </td> <td> <font color="#444444">19-Jan-1897</font> </td> <td> <font color="#444444">08-Mar-1915</font> </td> </tr> <tr> <td> <font color="#444444">Polaris</font> </td> <td> <font color="#444444">11</font> </td> <td> <font color="#444444">12-Jun-1913</font> </td> <td> <font color="#444444">08-Jun-1918</font> </td> </tr> <tr> <td> <font color="#444444">Praesepe</font> </td> <td> <font color="#444444">2</font> </td> <td> <font color="#444444">-</font> </td> <td> <font color="#444444">15-Mar-1918</font> </td> </tr> <tr> <td> <font color="#444444">ra 9h10m; dec +16d30m</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">18-Mar-1901</font> </td> </tr> <tr> <td> <font color="#444444">Regulus</font> </td> <td> <font color="#444444">5</font> </td> <td> <font color="#444444">26-Mar-1914</font> </td> <td> <font color="#444444">21-Mar-1915</font> </td> </tr> <tr> <td> <font color="#444444">rho Orionis</font> </td> <td> <font color="#444444">5</font> </td> <td> <font color="#444444">16-Jan-1914</font> </td> <td> <font color="#444444">19-Feb-1918</font> </td> </tr> <tr> <td> <font color="#444444">Saturn</font> </td> <td> <font color="#444444">3</font> </td> <td> <font color="#444444">27-Dec-1912</font> </td> <td> <font color="#444444">01-Jan-1913</font> </td> </tr> <tr> <td> <font color="#444444">Sirius</font> </td> <td> <font color="#444444">15</font> </td> <td> <font color="#444444">24-Feb-1897</font> </td> <td> <font color="#444444">01-Apr-1919</font> </td> </tr> <tr> <td> <font color="#444444">Sun</font> </td> <td> <font color="#444444">2</font> </td> <td> <font color="#444444">16-May-1918</font> </td> <td> <font color="#444444">16-May-1918</font> </td> </tr> <tr> <td> <font color="#444444">Tau Cygni</font> </td> <td> <font color="#444444">1</font> </td> <td> <font color="#444444">30-Aug-1924</font> </td> </tr> <tr> <td> <font color="#444444">Vega</font> </td> <td> <font color="#444444">2</font> </td> <td> <font color="#444444">16-Oct-1913</font> </td> <td> <font color="#444444">06-Nov-1916</font> </td> </tr> <tr> <td> <font color="#444444">Zeta Her (Boss 4246)</font> </td> <td> <font color="#444444">6</font> </td> <td> <font color="#444444">24-Jun-1914</font> </td> <td> <font color="#444444">27-Aug-1919</font> </td> </tr> <tr> <td> <font color="#444444">Zeta UMa (Boss2984)</font> </td> <td> <font color="#444444">4</font> </td> <td> <font color="#444444">04-Apr-1914</font> </td> <td> <font color="#444444">26-May-1916</font> </td> </tr> </tbody> </table>" jsaction="rcuQ6b:WYd;"><div class="EmVfjc qs41qe UzswCe" data-loadingmessage=" " jscontroller="qAKInc" jsaction="animationend:kWijWc;dyRcpb:dyRcpb" data-active="true" jsname="Hy6Uif"><div class="Cg7hO" aria-live="assertive" jsname="vyyg5"> </div><div jsname="Hxlbvc" class="xu46lf"><div class="ir3uv uWlRce co39ub"><div class="xq3j6 ERcjC"><div class="X6jHbb GOJTSe"></div></div><div class="HBnAAc"><div class="X6jHbb GOJTSe"></div></div><div class="xq3j6 dj3yTd"><div class="X6jHbb GOJTSe"></div></div></div><div class="ir3uv GFoASc Cn087"><div class="xq3j6 ERcjC"><div class="X6jHbb GOJTSe"></div></div><div class="HBnAAc"><div class="X6jHbb GOJTSe"></div></div><div class="xq3j6 dj3yTd"><div class="X6jHbb GOJTSe"></div></div></div><div class="ir3uv WpeOqd hfsr6b"><div class="xq3j6 ERcjC"><div class="X6jHbb GOJTSe"></div></div><div class="HBnAAc"><div class="X6jHbb GOJTSe"></div></div><div class="xq3j6 dj3yTd"><div class="X6jHbb GOJTSe"></div></div></div><div class="ir3uv rHV3jf EjXFBf"><div class="xq3j6 ERcjC"><div class="X6jHbb GOJTSe"></div></div><div class="HBnAAc"><div class="X6jHbb GOJTSe"></div></div><div class="xq3j6 dj3yTd"><div class="X6jHbb GOJTSe"></div></div></div></div></div><iframe jsname="WMhH6e" class=" YMEQtf" frameborder="0" sandbox="allow-scripts allow-popups allow-forms allow-same-origin allow-popups-to-escape-sandbox allow-downloads allow-storage-access-by-user-activation" id="1feefee985f0576c_402" name="1feefee985f0576c_402" scrolling="no" title="Custom embed" aria-label="Custom embed"></iframe></div></div></div></div></div></div></div></div></div></div></div><div class="hJDwNd-AhqUyc-II5mzb Ft7HRd-AhqUyc-II5mzb JNdkSc SQVYQc L6cTce-purZT L6cTce-pSzOP"><div class="JNdkSc-SmKAyb LkDMRd"><div class="" jscontroller="sGwD4d" jsaction="zXBUYb:zTPCnb;zQF9Uc:Qxe3nd;" jsname="F57UId"></div></div></div></div></div></section></div><div class="Xpil1b xgQ6eb"></div><div jscontroller="j1RDQb" jsaction="rcuQ6b:rcuQ6b;MxH79b:JdcaS;FaOgy:XuHpsb;" class="dZA9kd ynRLnc" data-last-updated-at-time="1622217903965" data-is-preview="false"><div role="button" class="U26fgb JRtysb WzwrXb I12f0b K2mXPb zXBiaf ynRLnc" jscontroller="iSvg6e" jsaction="click:cOuCgd; 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John C. Martin's Homepage - Astronomical Research Programs