UGC 8837

{{short description|Dwarf galaxy located in Ursa Major}}

{{Infobox galaxy

| name = UGC 8837

| image = UGC 8837 color cutout hst 10905 20 acs wfc f814w f606w sci.jpg

| image_size = 300px

| caption = Dwarf galaxy UGC 8837 taken by the Hubble Space Telescope.

| credit = ESA/Hubble & NASA

| epoch = J2000

| pronounce =

| constellation name = Ursa Major

| ra = {{RA|13|54|45.602}}

| dec = {{DEC|+53|54|20.06}}

| z = 0.000467

| h_radial_v = 140 km/s

| gal_v =

| dist_ly = 24 Mly

| group_cluster =

| type = IB(s)m

| mass =

| mass_light_ratio =

| stars =

| appmag_v = 13.34

| appmag_b = 14.2

| absmag_v =

| size_v = 2.1' x 0.6'

| notes =

| names = Holmberg IV, LEDA 49448, UZC J135445.5+535416, [MI94] Sm 93, Anon 1352+54, MCG+09-23-017, Z 272-13, DDO 185, SDSS J135445.60+535420.0, Z 1352.9+5409, TC 295, [M98c] 135255.2+540858

| references =

}}

UGC 8837 (also known as Holmberg IV) is a dwarf galaxy located in the constellation of Ursa Major, 24 million light years away from Earth. It is a member of the M101 Group, a group containing several galaxies orbiting the largest, the Pinwheel Galaxy (M101). {{Cite web|url=http://www.messier.seds.org/more/m101gr.html|title=The M101 group of galaxies|website=www.messier.seds.org|access-date=2020-04-26}}

It is possible UGC 8837 is one of the galaxies that interacted with the Pinwheel Galaxy and, together with NGC 5474 and NGC 5477, initiated a burst of star formation. {{Cite book|last1=Stoyan|first1=Ronald|url=https://books.google.com/books?id=x2VuBAAAQBAJ&q=ugc+8837&pg=PT1101|title=Atlas of the Messier Objects: Highlights of the Deep Sky|last2=Binnewies|first2=Stefan|last3=Friedrich|first3=Susanne|date=2008-10-27|publisher=Cambridge University Press|isbn=978-1-139-47311-8|language=en}}