NGC 804

{{Short description|Lenticular galaxy in the constellation Triangulum}}

{{Infobox galaxy

| name = NGC 804

| image = 250px

| caption = SDSS image of NGC 804

| epoch = J2000

| constellation name = Triangulum

| ra = {{RA|02|04|02.106}}{{cite journal |doi=10.1086/498708 |last1=Skrutskie |first1=Michael F. |last2=Cutri |first2=Roc M. |last3=Stiening |first3=Rae |last4=Weinberg |first4=Martin D. |last5=Schneider |first5=Stephen E. |last6=Carpenter |first6=John M. |last7=Beichman |first7=Charles A. |last8=Capps |first8=Richard W. |last9=Chester |first9=Thomas |last10=Elias |first10=Jonathan H. |last11=Huchra |first11=John P. |last12=Liebert |first12=James W. |last13=Lonsdale |first13=Carol J. |last14=Monet |first14=David G. |last15=Price |first15=Stephan |last16=Seitzer |first16=Patrick |last17=Jarrett |first17=Thomas H. |last18=Kirkpatrick |first18=J. Davy |last19=Gizis |first19=John E. |last20=Howard |first20=Elizabeth V. |last21=Evans |first21=Tracey E. |last22=Fowler |first22=John W. |last23=Fullmer |first23=Linda |last24=Hurt |first24=Robert L. |last25=Light |first25=Robert M. |last26=Kopan |first26=Eugene L. |last27=Marsh |first27=Kenneth A. |last28=McCallon |first28=Howard L. |last29=Tam |first29=Robert |last30=Van Dyk |first30=Schuyler D. |last31=Wheelock |first31=Sherry L. |title=The Two Micron All Sky Survey (2MASS) |journal=The Astronomical Journal |date=1 February 2006 |volume=131 |issue=2 |pages=1163–1183 |bibcode=2006AJ....131.1163S |s2cid=18913331 |issn=0004-6256 |doi-access=free }}

| dec = {{DEC|+30|49|58.13}}

| z = 0.017639

| h_radial_v = 5241 km/s

| dist_ly = {{cvt|70.92|Mpc|Mly|lk=on|order=flip}}{{cite journal|title=Groups of Galaxies in the Two Micron All Sky Redshift Survey|author1=Crook, Aidan C.|author2=Huchra, John P.|author3=Martimbeau, Nathalie|author4=Masters, Karen L.|author5=Jarrett, Tom|author6=Macri, Lucas M.|journal=The Astrophysical Journal|volume=655|issue=2|pages=790–813|date=2007|bibcode=2007ApJ...655..790C|doi=10.1086/510201|arxiv=astro-ph/0610732|s2cid=11672751}}

| group_cluster =

| type = S0

| size =

| appmag_v =

| appmag_b = 14.7

| absmag_v =

| size_v =

| notes =

| names = {{odlist|IC=1773|UGC=1557|MCG=+05-05-049|PGC=7873}}{{cite simbad|title=NGC 804|access-date=2020-05-24}}

}}

NGC 804 is a lenticular galaxy located in the Triangulum constellation about 231 million light-years from the Milky Way. It was discovered by the American astronomer Lewis Swift in 1885. This galaxy was also observed by the French astronomer Guillaume Bigourdan on December 24, 1897, and it has been added to the Index Catalogue under the symbol IC 1773.{{Cite web|url=http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=ngc+804&img_stamp=YES|title=Your NED Search Results|website=ned.ipac.caltech.edu|access-date=2020-03-24}}{{Cite web|url=http://spider.seds.org/ngc/revngcic.cgi?NGC804|title=Revised NGC Data for NGC 804|website=spider.seds.org|access-date=2020-03-24}}{{Cite web|url=https://in-the-sky.org/data/object.php?id=NGC804|title=The galaxy NGC 804 - In-The-Sky.org|last=Ford|first=Dominic|website=in-the-sky.org|language=en|access-date=2020-03-24}}