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<html><head> <title>The Interactive NGC Catalog Online</title> <link rev="owner" title="Contact Maintainer" href="http://spider.seds.org/Contact/spider.html"> <meta name="keywords" content="Astronomy, Deep Sky, NGC Objects, IC Objects, Messier Objects, NGC Catalog, IC Catalog, Messier Catalog, RNGC, NGC 2000.0, Galaxies, Nebulae, Star Clusters, SEDS"> <meta name="author" content="Hartmut Frommert"> <meta name="distribution" content="global"> </head> <body> <a href="ngc_fr.html"><img src="../Jco/flag_fr.jpg" alt="[fr]"></a> <center> <h2>The Interactive NGC Catalog Online</h2> by <a href="http://spider.seds.org/">Hartmut Frommert</a> </center> <p> <img src="n6543.jpg" align=right alt=""> This is the interactive NGC (and IC, and Messier) catalog at <a href="http://www.seds.org/">SEDS</a>, based on the famous NGC 2000.0 by R.W. Sinnott of Sky Publishing Corp., who also created the electronic version used by this online service (thanks to Sky Publishing - <a href="https://www.skyandtelescope.org/">now skyandtelescope.org</a> - for permitting us this kind of use). Only <a href="ngc_corr.html">some minor corrections</a> have been included in our online database. The HTML interface and its features were created by <a href="http://spider.seds.org/">Hartmut Frommert</a>. Thanks to <a href="http://arnett.us.com/">Bill Arnett</a> for helpful hints and support, and the admins of <a href="http://www.seds.org/">SEDS</a> who provided the appropriate hardware and software basis for this service. Thanks to Bernard Trézéguet, this service is now available in <a href="ngc_fr.html">French language</a> also. <p> The NGC and its supplements IC I and IC II were originally compiled by J.L.E. Dreyer and published 1887 (NGC), 1895 (IC I) and 1908 (IC II). It contains open and globular star clusters (and some asterisms), diffuse and planetary nebulae, supernova remnants, galaxies of all types (and some knots in bright galaxies), and some erroneous entries corresponding to single or double stars, or no objects at all. <p> You will get the NGC 2000.0 data for each NGC, IC, or Messier object, including <a href="des.html">J.L.E. Dreyer's description code</a>. Moreover, for most of the objects, <a href="cid.html">cross identifications</a> are given for some (mostly older) catalogs, including John Herschel's GC of 1864 (with Dreyer's later extension), John Herschel's 1833 and 1847 catalogs ("h"), William Herschel's catalog published between 1786 and 1802 ("H"), Lacaille's catalog of 1755 ("Lac") and James Dunlop's catalog of 1828 ("Dun"), as well as the sources and references given in Dreyer's original catalog, and some collected remarks. <p> In addition, you get a link for downloading an image from the <a href="http://stdatu.stsci.edu/dss/dss_form.html">Digital Sky Survey</a> for each object, as well as a link to the data of the <a href="http://www.klima-luft.de/steinicke/">Wolfgang Steinicke</a>'s <a href="http://www.klima-luft.de/steinicke/ngcic/rev2000/Explan.htm"> Revised NGC and IC Catalog</a>, a link to the data of the <a href="http://www.ngcicproject.observers.org/">NGC/IC Project</a>, a link to the data of <a href="http://ned.ipac.caltech.edu/">NASA/IPAC Extragalactic Database (NED)</a>, a link to the data of the <a href="http://simbad.u-strasbg.fr/">SIMBAD Astronomical Database</a>, a link to the <a href="http://archive.stsci.edu/hst/"> Hubble Space Telescope (HST) Archive images</a> for each object, a link to the publication references at the <a href="http://adswww.harvard.edu/">NASA Astrophysics Data System (ADS)</a>, and a link to the observing reports collected at the <a href="../spider/IAAC/iaac.html">IAAC NetAstroCatalog</a>. If available, you will also get a link to some descriptive HTML page, and an image of the object. Most of the images and descriptive pages are from the <a href="http://www.seds.org/">SEDS server</a>, but some external links are included, notably from <a href="http://www.allthesky.com/">Digital Images of the Sky</a> by Till Credner and Sven Kohle, the <!a href="http://www.noao.edu/kpvc/"> <a href="http://www.caelumobservatory.com/obs/bestofaop.shtml"> Advanced Observing Program (AOP)</a> of the Kitt Peak Visitor Center, the <!a href="http://www.aao.gov.au/"> <a href="https://images.datacentral.org.au/"> Australian Astronomical Observatory (AAO)</a>, and the <!a href="http://www.noao.edu/">National Optical Astronomy Observatories (NOAO)<!/a> (now <a href="https://noirlab.edu/public/">NOIRlab</a>). <p> Please type in the NGC number (either as number only, or preceded by 'NGC' or 'N'), or the IC number preceded by 'IC' or 'I', or the Messier number preceded by 'M', of the object you'd like to find. Some browsers (e.g., Lynx) require that you hit a key ('s' or 'S' for Lynx) to activate the input line. <!isindex action="ngc.cgi" prompt="Enter Catalog number: "> <form action="ngc.cgi" method="get"> <hr> Enter your Catalog Number: <input type="text" name="CatalogNumber"> <input type="submit" value="Submit"> <hr> </form> <p> <h3>Statistics:</h3> As of the counting of July 2007, we have the following statistics for the Messier, NGC, and IC catalog: <pre> Type M(+) NGC IC NGC+IC+M <hr> Galaxy 40+2 6029 3971 10000 DN/SNR 7 144 97 241 PN 4 94 35 129 OC 28 684 38 723(*) GC 29 115 8 123 Pt. 0 27 24 51 Dup 0 255 338 593 Stellar 2 395 651 1047(*) NF 0 97 224 321 <hr> Total 110+2 7840 5386 13228(*) </pre> <p> Type Key: Galaxy: <a href="http://messier.seds.org/galaxy.html">Galaxy</a>; DN/SNR: <a href="http://messier.seds.org/diffuse.html">Diffuse Nebula</a> or <a href="http://messier.seds.org/snr.html">Supernova Remnant</a>; PN: <a href="http://messier.seds.org/planetar.html">Planetary Nebula</a>; OC: <a href="http://messier.seds.org/open.html">Open Cluster</a> (including Milky Way star cloud); GC: <a href="http://messier.seds.org/glob.html">Globular Cluster</a>; Pt.: Part of other object: mostly Gal, 1 PN; Dup: Duplication (in IC, may be from NGC); NF: Not found. <br> Remark: (*) Including non-NGC/IC Messier Object (OC: <a href="ngc.cgi?M45">M45</a>, Stellar: <a href="ngc.cgi?M40">M40</a>). <br> Remark: (+) Two extra Messier objects, <a href="ngc.cgi?NGC5195">M51B (NGC 5195)</a> and <a href="ngc.cgi?NGC3953">M109B (NGC 3953)</a> <br> Most Messier objects are also contained in either NGC or IC catalog. <br> Of the globular clusters, 104 NGC and 3 IC objects belong to the <a href="http://messier.seds.org/more/mw.html">Milky Way galaxy</a>, 9 NGC and 5 IC objects to the <a href="http://messier.seds.org/xtra/ngc/lmc.html">Large Magellanic Cloud (LMC)</a>, and one NGC object each to the <a href="http://messier.seds.org/xtra/ngc/smc.html">Small Magellanic Cloud (SMC</a>, <a href="ngc.cgi?NGC+292">NGC 292)</a> and the <a href="http://spider.seds.org/spider/LG/for_dw.html">Fornax Dwarf</a> galaxy; <a href="gc-ngcic-ext.html">see a summary list</a>; this count is based on Wolfgang Steinicke's <a href="http://www.klima-luft.de/steinicke/ngcic/rev2000/Explan.htm"> revngc/revic</a>. <p> NGC and IC only contain entries for 6 supernova remnants (SNRs), 4 in the Milky Way galaxy and two in LMC: The Crab Nebula (<a href="ngc.cgi?NGC+1952">NGC 1952</a>, <a href="http://messier.seds.org/m/m001.html">M1</a>), the <a href="http://spider.seds.org/spider/Misc/veil.html">Veil Nebula</a> (parts of it cataloged as <a href="ngc.cgi?NGC+6960">NGC 6960</a>, <a href="ngc.cgi?NGC+6974">6974</a>, <a href="ngc.cgi?NGC+6979">6979</a>, <a href="ngc.cgi?NGC+6992">6992</a>, <a href="ngc.cgi?NGC+6995">6995</a> and <a href="ngc.cgi?IC+1340">IC 1340</a>), <a href="ngc.cgi?NGC+2736">NGC 2736</a> as part of the Vela Supernova Remnant, and <a href="ngc.cgi?IC+443">IC 443</a> in Milky Way, as well as <a href="ngc.cgi?NGC+1918">NGC 1918</a> and <a href="ngc.cgi?NGC+2060">NGC 2060</a> in LMC. <p> <b>Note:</b> NGC 2000.0 has one object classified as "Photographic Plate Defect;" that is <a href="ngc.cgi?IC+3601">IC 3601</a>. It is actually a galaxy though. <p> <h3>Links:</h3> <ul> <li><a href="http://obs.nineplanets.org/ngc.html">The NGC on the Net, & NGC description codes</a>: A collection of NGC related links and Dreyer code translation table by <a href="http://arnett.us.com/">Bill Arnett</a> <li><a href="http://www.astrosociety.org/resources/ngc.html">Images of NGC objects</a> (Astronomical Society of the Pacific, ASP) <li><a href="http://www.klima-luft.de/steinicke/">Wolfgang Steinicke</a>'s <a href="http://www.klima-luft.de/steinicke/ngcic/ngcic_e.htm"> NGC/IC site</a>, including the <a href="http://www.klima-luft.de/steinicke/ngcic/rev2000/Explan.htm"> Revised NGC and IC Catalog</a> <li><a href="http://www.ngcicproject.observers.org/">The NGC/IC Project</a> maintains an online database of various versions of the NGC and IC catalogs and related material, including an interactive observing list generator. Note in particular the scanned online versions of the <a href="http://www.ngcicproject.observers.org/legacy/NGCOnLine/default.htm"> NGC</a> and <a href="http://www.ngcicproject.observers.org/legacy/ICOnLine/default.htm"> IC</a> catalogs. <li><a href="../spider/IAAC/NGC.html"> Observing Reports for NGC objects</a> (IAAC Netastrocatalog) <li><a href="http://messier.seds.org/">Messier Catalog at SEDS</a> with images and info; also contains information on and images of some <a href="http://messier.seds.org/xtra/ngc/ngc.html">Non-Messier Objects</a>, mostly in the NGC or IC catalog. <li><a href="http://astro.nineplanets.org/twn/top.html">The Web Nebulae</a>: Images of Deep Sky objects, compiled by <a href="http://arnett.us.com/">Bill Arnett</a> <li>List of <a href="http://messier.seds.org/xtra/supp/d-names.html"> Common Names for Deepsky Objects</a>, compiled by <a href="http://spider.seds.org/">Hartmut Frommert</a> <li><a href="http://spider.seds.org/spider/Deepsky/deepsky.html"> A Guide to the Deepsky Astronomy Resources at SEDS</a> <li><a href="http://messier.seds.org/xtra/similar/dreyer.html">View an image of J.L.E. Dreyer</a>, the man who compiled the NGC and IC catalogs. <li><a href="http://messier.seds.org/xtra/history/deepskyd.html">Read of the History of Deep Sky discoveries and historic catalogs</a>. <li><a href="http://vizier.cfa.harvard.edu/viz-bin/Cat?VII/1B"> RNGC: The Revised New General Catalogue of Nonstellar Astronomical Objects</a>, by Jack W. Sulentic and W.G. Tifft, Tucson, 1973. <li><a href="http://vizier.cfa.harvard.edu/viz-bin/Cat?VII/118"> NGC 2000.0</a>, machine-readable version of the full catalog from ADC, © Sky Publishing Corporation and Cambridge University Press (1988) <li>The full NGC 2000.0 Catalog is also available on diskettes and in paper form from <a href="http://www.skypub.com/">Sky Publishing Corporation</a> </ul> <h3>References:</h3> <ul> <li>J. L. E. Dreyer, 1888. New General Catalogue of Nebulae and Clusters of Stars. Mem. Roy. Astron. Soc., Vol. 49, Part I <a href="http://adsabs.harvard.edu/abs/1888MmRAS..49....1D"> [ADS: 1888MmRAS..49....1D]</a>. Reprinted 1953, London, Royal Astronomical Society. <b>NGC</b>. NGC 1-7840. <li>J. L. E. Dreyer, 1895. Index Catalogue of Nebulae Found in the Years 1888 to 1894, with Notes and Corrections to the New General Catalogue, Mem. Roy. Astron. Soc., Vol. 51, pp. 185-228 <a href="http://adsabs.harvard.edu/abs/1895MmRAS..51..185D"> [ADS: 1895MmRAS..51..185D]</a>. Reprinted 1953, London, Royal Astronomical Society. <b>IC I</b>, IC 1-1529. <li>J. L. E. Dreyer, 1908. Second Index Catalogue of Nebulae Found in the Years 1895 to 1907; with Notes and Corrections to the New General Catalogue and to the Index Catalogue for 1888 to 1894, Mem. Roy. Astron. Soc., Vol. 59, Part 2, pp. 105-198 <a href="http://adsabs.harvard.edu/abs/1910MmRAS..59..105D"> [ADS: 1910MmRAS..59..105D]</a>. Reprinted 1953, London, Royal Astronomical Society. <b>IC II</b>, IC 1530-5386. <li>A reprint of all 3 catalogs was published by the Royal Astronomical Society, London, 1962. <li>J. W. Sulentic and W. G. Tifft, 1973. The Revised New General Catalogue of Nonstellar Astronomical Objects. Tucson, The University of Arizona Press. <b>RNGC</b>. <a href="http://adsabs.harvard.edu/abs/1973rncn.book.....S"> [ADS: 1973mcn.book......S]</a>. Electronic version: SIMBAD/ADC catalog VII/1B <a href="http://adsabs.harvard.edu/abs/1999yCat.7001....0S"> [ADS: 1999yCat.7001....0S]</a> <li>R. W. Sinnott (ed.), 1988. NGC 2000.0, The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer. Sky Publishing Corporation and Cambridge University Press. <b>NGC 2000.0</b>. <a href="http://adsabs.harvard.edu/abs/1988cngc.book.....S"> [ADS: 1988cngc.book.....S]</a> Electronic version: SIMBAD/ADC catalog VII/118 <a href="http://adsabs.harvard.edu/abs/1997yCat.7118....0S"> [ADS: 1997yCat.7118....0S]</a> <li>Newer revised versions of the NGC and IC catalogs are available from and steadily worked upon by the <a href="http://www.ngcicproject.observers.org/"><b>NGC/IC Project</b></a>. <li>Wolfgang Steinicke has brought out, and steadily improves his <a href="http://www.klima-luft.de/steinicke/ngcic/rev2000/Explan.htm"> Revised NGC and IC Catalog</a>. <b>revngc</b>, <b>revic</b>. </ul> <p> <hr> <p> <li>This service was selected as <a href="http://spacsun.rice.edu/~has/Siteweek.html"> Houston Astronomical Society Site Of The Week</a> for March 30, 1998 <p> <hr> <a href="http://spider.seds.org/">Hartmut Frommert</a> <a href="../Contact/spider.html">[contact]</a> <p> <a href="http://spider.seds.org/"> <img src="../Jco/spider.ico.jpg" alt="[Spider] @"></a> <a href="http://www.seds.org/"><img src="../Jco/seds.jpg" alt="[SEDS]"></a> </body></html>