UGC 4904

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

{{Sky|09|17|22.062|+|41|54|39.70}}

{{Infobox galaxy

| name = UGC 4904

| image = UGC 4904 Sloan.png

| caption = UGC 4904, imaged by the Sloan Digital Sky Survey

| epoch = J2000

| constellation name = Lynx

| ra = {{RA|09|17|22.062}}

| dec = {{DEC|+41|54|39.70}}

| dist_ly = {{convert|27.74 ± 1.96|Mpc|Mly|abbr=on|lk=on|order=flip}}

| z = 0.005571

| h_radial_v = 1665{{cite journal|title=Close galaxy pairs in low and medium density regions: The southern sky|author1=Nordgren, Tyler E.|author2=Chengalur, Jayaram N.|author3=Salpeter, E. E.|author4=Terzian, Yervant |authorlink4=Yervant Terzian |journal=Astronomical Journal|volume=114|pages=913–931|date=1997|doi=10.1086/118523|bibcode=1997AJ....114..913N|doi-access=free}}

| group_cluster =

| type = SABdm{{cite journal | title=A Catalog of Visually Classified Galaxies in the Local (z ∼ 0.01) Universe|author1=Ann, H. B.|author2=Seo, Mira|author3=Ha, D. K.|journal=The Astrophysical Journal Supplement Series|volume=217|issue=2|pages=27–49|date=2015|bibcode=2015ApJS..217...27A|doi=10.1088/0067-0049/217/2/27|arxiv=1502.03545|s2cid=119253507}}

| size = ~{{convert|9.58|kpc|ly|abbr=on|lk=on|order=flip}} (estimated)

| stars =

| appmag_b = 15.0{{cite web | url= https://ned.ipac.caltech.edu/byname?objname=UGC+4904 | title=NED results for object UGC 4904 | accessdate=29 January 2017 | publisher=National Aeronautics and Space Administration / Infrared Processing and Analysis Center }}

| appmag_v =

| absmag_v =

| size_v =

| notes = Dwarf spiral galaxy with a supernova impostor which eventually exploded as an actual supernova

| names = {{odlist | CGCG= 209-044 | MCG= +07-19-054 | PGC= 26231}}

| references =

}}

UGC 4904 is a barred spiral galaxy in the constellation Lynx. Its velocity with respect to the cosmic microwave background is 1880 ± 15{{nbsp}}km/s, which corresponds to a Hubble distance of {{convert|27.74 ± 1.96|Mpc|Mly|abbr=on|lk=on|order=flip}}. The first known reference to this galaxy comes from Part 2 of the Morphological Catalogue of Galaxies, published in 1964, where it is listed as MCG +07-19-054.{{cite journal|bibcode=1964MCG...C02....0V | title=Morphological catalogue of galaxies. Part 2 | last1=Vorontsov-Vel'Yaminov | first1=B. A. | last2=Arkhipova | first2=V. P. | journal=Morphological Catalogue of Galaxies | date=1964 | volume=C02 }}