NGC 4722

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

{{Use dmy dates|date=November 2024}}

{{Sky|12|51|32.3681|-|13|19|47.993}}

{{Infobox Galaxy

| name = NGC{{nbsp}}4722

| image = 250px

| caption= Lenticular galaxy NGC{{nbsp}}4722

| epoch = J2000

| constellation name = Corvus

| ra = {{RA|12|51|32.3681}}{{cite web

| website=NASA/IPAC Extragalactic Database

| publisher = NASA and Caltech

| title=Results for object NGC 4722

| url=http://ned.ipac.caltech.edu/byname?objname=NGC+4722

| access-date=23 November 2024}}

| dec = {{DEC|-13|19|47.993}}

| z = 0.004376

| h_radial_v = 1312 ± 9 km/s

| dist_ly = {{convert|24.30 ± 1.75|Mpc|Mly|abbr=on|lk=on|order=flip}}

| group_cluster = NGC 4699 Group

| type = SB0/a(r)

| size=~{{convert|18.15|kpc|ly|abbr=on|lk=on|order=flip}} (estimated)

| appmag_v = 12.8

| size_v = {{Val|1.8|×|0.7|u=arcminute}}

| names = {{odlist | IC= 3833 | MCG= -02-33-031 | PGC= 43560 | 2MASX= J12513239-1319482 | IRAS= 12488-1303}}

| notes =

}}

NGC{{nbsp}}4722 is a lenticular galaxy in the constellation of Corvus. Its velocity with respect to the cosmic microwave background is 1647 ± 25{{nbsp}}km/s, which corresponds to a Hubble distance of {{convert|24.3 ± 1.75|Mpc|Mly|abbr=on|lk=on|order=flip}}. In addition, two non-redshift measurements give a distance of {{convert|27.35 ± 12.05|Mpc|Mly|abbr=on|lk=on|order=flip}}.{{cite web | url = https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+4722 | title = Distance Results for NGC{{nbsp}}4722 | website = NASA/IPAC EXTRAGALACTIC DATABASE | publisher = NASA | access-date = 23 November 2024}} It was discovered by German astronomer Wilhelm Tempel in 1882.{{cite web | url = https://cseligman.com/text/atlas/ngc47.htm#4722 | title = New General Catalogue Objects: NGC{{nbsp}}4722 | last = Seligman | first = Courtney | website = Celestial Atlas | access-date = 23 November 2024}} It was also observed by French astronomer Guillaume Bigourdan on 15 April 1895 and listed in the Index Catalogue as IC 3833.

NGC 4722 and NGC 4723 are listed together as Holm 471 in Erik Holmberg's A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems, published in 1937.{{cite journal | bibcode=1937AnLun...6....1H | title=A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems | last1=Holmberg | first1=Erik | journal=Annals of the Observatory of Lund | date=1937 | volume=6 | page=1 }}