NGC 3632

{{short description|Galaxy in the constellation Leo}}

{{Infobox galaxy

| name = NGC 3632

| image = 250px

| caption = SDSS image of NGC 3632

| epoch = J2000

| constellation name = Leo

| ra = {{RA|11|20|03.794}}{{cite journal |doi=10.1086/498708 |last1=Skrutskie |first1=Michael F. |last2=Cutri |first2=Roc M. |last3=Stiening |first3=Rae |last4=Weinberg |first4=Martin D. |last5=Schneider |first5=Stephen E. |last6=Carpenter |first6=John M. |last7=Beichman |first7=Charles A. |last8=Capps |first8=Richard W. |last9=Chester |first9=Thomas |last10=Elias |first10=Jonathan H. |last11=Huchra |first11=John P. |last12=Liebert |first12=James W. |last13=Lonsdale |first13=Carol J. |last14=Monet |first14=David G. |last15=Price |first15=Stephan |last16=Seitzer |first16=Patrick |last17=Jarrett |first17=Thomas H. |last18=Kirkpatrick |first18=J. Davy |last19=Gizis |first19=John E. |last20=Howard |first20=Elizabeth V. |last21=Evans |first21=Tracey E. |last22=Fowler |first22=John W. |last23=Fullmer |first23=Linda |last24=Hurt |first24=Robert L. |last25=Light |first25=Robert M. |last26=Kopan |first26=Eugene L. |last27=Marsh |first27=Kenneth A. |last28=McCallon |first28=Howard L. |last29=Tam |first29=Robert |last30=Van Dyk |first30=Schuyler D. |last31=Wheelock |first31=Sherry L. |title=The Two Micron All Sky Survey (2MASS) |journal=The Astronomical Journal |date=1 February 2006 |volume=131 |issue=2 |pages=1163–1183 |bibcode=2006AJ....131.1163S |s2cid=18913331 |issn=0004-6256 |doi-access=free }}

| dec = {{DEC|+18|21|24.45}}

| h_radial_v = 1488 km/s

| z = 0.004977

| dist_ly = {{cvt|22.91|±|0.12|Mpc|Mly|lk=on|order=flip}}{{cite journal|title=Cosmicflows-2: The Data|author1=Tully, R. Brent|display-authors=etal|journal=The Astronomical Journal|volume=146|issue=4|date=2013|page=86 |bibcode=2013AJ....146...86T|doi=10.1088/0004-6256/146/4/86|arxiv=1307.7213|s2cid=118494842 }}

| group_cluster =

| type = (R)SA0⁺(rs){{cite web|url=https://ned.ipac.caltech.edu/byname?objname=NGC%203626&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1|title=Results for object NGC 3626 (NGC 3626)|work=NASA/IPAC Extragalactic Database|publisher=California Institute of Technology|accessdate=2021-02-13}}

| size =

| appmag_v = 10.98{{cite web|url=http://leda.univ-lyon1.fr/ledacat.cgi?o=NGC%203626|title=Search specification: NGC 3626|work=HyperLeda|publisher=Université Claude Bernard Lyon 1|accessdate=2021-02-13}}

| appmag_b = 11.80

| absmag_v =

| size_v =

| notes =

| names = {{odlist|name=Caldwell 40|NGC=3626|UGC=6343|MCG=+03-29-032|PGC=34684}}{{cite simbad|title=NGC 3626|accessdate=2021-02-13}}

}}

NGC 3632 (also known as Caldwell 40) and NGC 3626 is an unbarred lenticular galaxy and Caldwell object in the constellation Leo. It was discovered by William Herschel, on 14 March 1784. It shines at magnitude +10.6{{cite web|url=http://www.ngcic.org/ngcicdb.asp|archive-url=https://web.archive.org/web/20010904223152/http://www.ngcic.org/ngcicdb.asp|url-status=dead|archive-date=September 4, 2001|title=Object Data|last=Erdmann, Jr.|first=Robert E.|date=1996–2008|publisher=The NGC / IC Project|access-date=2008-08-11}}/+10.9. Its celestial coordinates are RA {{RA|11|20.1}}, dec {{DEC|+18|21}}. It is located near the naked-eye-class A4 star Zosma, as well as galaxies NGC 3608, NGC 3607, NGC 3659, NGC 3686, NGC 3684, NGC 3691, NGC 3681, and NGC 3655. Its dimensions are 2′.7 × 1′.9. The galaxy belongs to the NGC 3607 group some 70 million light-years distant, itself one of the many Leo II groups.{{cite web|url=http://www.atlasoftheuniverse.com/galgrps/leoii.html|title=The Leo II Groups|last=Powell|first=Richard|year=2006|publisher=Atlas of The Universe|access-date=2008-08-11}}