NGC 774

{{Short description|Galaxy in the constellation Aries}}

{{Infobox galaxy

| name = NGC 774

| image = NGC774 - SDSS DR14.jpg

| caption = NGC 774 by SDSS

| epoch = J2000

| type = S0 {{cite web

| title=NASA/IPAC Extragalactic Database

| work=Results for NGC 774

| url=http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+774

| access-date=1 February 2025 }}

| ra = {{RA|01|59|34.7}}

| dec = {{DEC|+14|00|30}}

| dist_ly = 179 ± 18 Mly (54.8 ± 5.5 Mpc)

| z = 0.015326 ± 0.000008

| h_radial_v = 4,595 ± 2 km/s

| appmag_v = 13.1{{cite web |title=Revised NGC Data for NGC 774 |url=https://spider.seds.org/ngc/revngcic.cgi?NGC774 |website=spider.seds.org |access-date=30 March 2024}}

| size_v = 1.25{{prime}} × 0.96{{prime}}

| constellation name = Aries

| notes =

| names = UGC 1469, MCG +02-06-008, CGCG 438-010, PGC 7536

}}

NGC 774 is a lenticular galaxy in the constellation Aries. The galaxy lies about 180 million light years away from Earth, which means, given its apparent dimensions, that NGC 774 is approximately 70,000 light years across. It was discovered by William Herschel on October 16, 1784.{{cite web |last1=Seligman |first1=Courtney |title=NGC 774 (= PGC 7536) |url=https://cseligman.com/text/atlas/ngc7a.htm#774 |website=Celestial Atlas |access-date=19 November 2018}}

NGC 774 is a lenticular galaxy. The nucleus of the galaxy is a faint source of [NII]6584 and H-alpha emission.{{cite journal |last1=Hakobyan |first1=A. A. |last2=Petrosian |first2=A. R. |last3=McLean |first3=B. |last4=Kunth |first4=D. |last5=Allen |first5=R. J. |last6=Turatto |first6=M. |last7=Barbon |first7=R. |title=Early-type galaxies with core collapse supernovae |journal=Astronomy & Astrophysics |date=September 2008 |volume=488 |issue=2 |pages=523–531 |doi=10.1051/0004-6361:200809817|arxiv=0806.4269 |bibcode=2008A&A...488..523H }} A ring is visible in ultraviolet. The ring is possibly a place of active star formation, as it was the location of a core-collapse supernova. Ionised gas is located asymmetrical around the nucleus, at a distance up to 20 arcseconds, which corresponds to 6 kpc at the distance of the galaxy.{{cite journal |last1=Sil’chenko |first1=Olga K. |last2=Moiseev |first2=Alexei V. |last3=Egorov |first3=Oleg V. |title=The Gas Kinematics, Excitation, and Chemistry, in Connection with Star Formation, in Lenticular Galaxies |journal=The Astrophysical Journal Supplement Series |date=1 September 2019 |volume=244 |issue=1 |pages=6 |doi=10.3847/1538-4365/ab3415|doi-access=free |arxiv=1907.07261 |bibcode=2019ApJS..244....6S }} Stellar kinematics indicate it has a double stellar ring. A faint dust ring is also visible.{{cite journal |last1=Rizzo |first1=Francesca |last2=Fraternali |first2=Filippo |last3=Iorio |first3=Giuliano |title=S0 galaxies are faded spirals: clues from their angular momentum content |journal=Monthly Notices of the Royal Astronomical Society |date=11 May 2018 |volume=476 |issue=2 |pages=2137–2167 |doi=10.1093/mnras/sty347|doi-access=free |arxiv=1711.10499 }}

One supernova has been observed in NGC 774, SN 2006ee. It was discovered on 18 August 2006, at an apparent magnitude of 17.6, by the Katzman Automatic Imaging Telescope. It was categorised spectrally as a type II supernova.{{cite journal |last1=Green |first1=Daniel |title=Supernovae 2006ed-2006en |journal=International Astronomical Union Circular |date=28 August 2006 |issue=8741 |page=1 |bibcode=2006IAUC.8741....1P |url=http://www.cbat.eps.harvard.edu/iauc/08700/08741.html}}

NGC 774 forms a pair with UGC 1468, which lies 4 arcminutes away.Nilson, P. (1973) Uppsala General Catalogue of Galaxies, Acta Universitatis Upsalienis, Nova Regiae Societatis Upsaliensis, Series V: A Vol. 1 NGC 774 is a member of a galaxy group include UGC 1496, NGC 786, UGC 1512, and NGC 792.{{cite journal |last1=Crook |first1=Aidan C. |last2=Huchra |first2=John P. |last3=Martimbeau |first3=Nathalie |last4=Masters |first4=Karen L. |last5=Jarrett |first5=Tom |last6=Macri |first6=Lucas M. |title=Groups of Galaxies in the Two Micron All Sky Redshift Survey |journal=The Astrophysical Journal |date=February 2007 |volume=655 |issue=2 |pages=790–813 |doi=10.1086/510201 |arxiv=astro-ph/0610732 |bibcode=2007ApJ...655..790C |url=https://cdsarc.cds.unistra.fr/viz-bin/nph-Cat/txt?J/ApJ/655/790/table10.dat.gz}}