NGC 839

{{Short description|Galaxy in the constellation of Cetus}}

{{Infobox galaxy

| image = 250px

| alt = NGC 839

| caption = HST image of NGC 839

| epoch = J2000

| constellation name = Cetus

| ra = {{RA|02|09|42.929}}

| dec = {{DEC|-10|11|02.71}}

| h_radial_v = 3847 km/s

| z = 0.012916

| dist_ly = {{cvt|53.44|±|3.75|Mpc|Mly|lk=on|order=flip}}{{cite web|url=https://ned.ipac.caltech.edu/byname?objname=NGC%20839&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1|title=Results for object NGC 0839 (NGC 839)|work=NASA/IPAC Extragalactic Database|publisher=California Institute of Technology|accessdate=2021-09-08}}

| group_cluster =

| type = S0: pec

| size =

| appmag_v = 11.42

| appmag_b = 13.98

| absmag_v =

| size_v =

| names = {{odlist|UGC=|MCG=-02-06-034|PGC=8254}}{{cite simbad|title=NGC 839|accessdate=2021-09-08}}

}}

NGC 839 is a lenticular galaxy located in the constellation Cetus. It was discovered November 28, 1785 in a sky survey by Wilhelm Herschel.{{cite web|url=http://cseligman.com/text/atlas/ngc8.htm#839|title=New General Catalogue objects: NGC 800 - 849|author=Seligman, Courtney|website=cseligman.com|accessdate=2021-09-08}} It is one of the galaxies that are part of the quadruplet family HGC 16, along with the unbarred lenticular galaxy NGC 838.

NGC 839 is a luminous infrared galaxy (LIRG) that shows signs of high amounts of star formation; therefore, it is also classified as a starburst galaxy.{{cite journal|doi=10.1088/0004-637X/721/1/505|title=NGC 839: Shocks in an M82-like Superwind|year=2010|bibcode=2010ApJ...721..505R|arxiv=1007.3495|last1=Rich|first1=J. A.|last2=Dopita|first2=M. A.|last3=Kewley|first3=L. J.|last4=Rupke|first4=D. S. N.|journal=The Astrophysical Journal|volume=721|issue=1 |pages=505–517|s2cid=118875933}} It is similar in appearance to Messier 82, suggesting a similar formation history.