NGC 178

{{Short description|Magellanic spiral galaxy in the constellation Cetus}}

{{Infobox galaxy

| name = NGC 178

| image = 250px

| upright =

| alt = NGC 178

| caption = HST image of NGC 178

| constellation name = Cetus

| epoch = J2000

| ra = {{RA|00|39|08.392}}{{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|-14|10|22.25}}

| z = 0.004863{{cite simbad

| title=NGC 178

| access-date=2015-09-30 }}

| h_radial_v = 1454.4 km/s

| gal_v =

| dist_ly = {{cvt|20.6|Mpc|Mly|lk=on|order=flip}}

| group_cluster =

| type = SB(s)m{{cite web|url=https://ned.ipac.caltech.edu/byname?objname=NGC%20178&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1|title=Results for object NGC 0178 (NGC 178)|work=NASA/IPAC Extragalactic Database|publisher=California Institute of Technology|access-date=2021-02-08}}

| size = 25 to 30 kly{{cite web|url=https://cseligman.com/text/atlas/ngc1a.htm#178|title=New General Catalogue objects: NGC 150 - 199|author=Seligman, Courtney|website=cseligman.com|accessdate=2021-02-08}}

| appmag_v = 12.6

| appmag_b = 13.6

| absmag_v =

| size_v = 1.85{{prime}} × 0.85{{prime}}

| notes =

| names = {{odlist|IC=39|MCG=-02-02-078|PGC=2349}}

| references =

}}

NGC 178 is a Magellanic spiral galaxy in the constellation of Cetus. The compiler of the New General Catalogue, John Louis Emil Dreyer noted that NGC 178 was "faint, small, much extended 0°, brighter middle". It was discovered on November 3, 1885, by Ormond Stone.

Due to its high rate of star formation NGC 178 is a starburst galaxy. It is forming new stars at a rate of {{solar mass|0.55}} per year.{{cite journal|doi=10.1088/0004-637X/779/1/76|title=New Constraints on the Escape of Ionizing Photons from Starburst Galaxies Using Ionization-Parameter Mapping|year=2013|last1=Zastrow|first1=Jordan|last2=Oey|first2=M. S.|last3=Veilleux|first3=Sylvain|last4=McDonald|first4=Michael|journal=The Astrophysical Journal|volume=779|issue=1|page=76|arxiv=1311.2227|bibcode=2013ApJ...779...76Z|s2cid=14717292}} The peculiar morphology of this galaxy may be a sign of it being a galaxy merger.{{cite journal|doi=10.1086/504685|title=The Survey for Ionization in Neutral Gas Galaxies. I. Description and Initial Results|year=2006|last1=Meurer|first1=Gerhardt R.|last2=Hanish|first2=D. J.|last3=Ferguson|first3=H. C.|last4=Knezek|first4=P. M.|last5=Kilborn|first5=V. A.|last6=Putman|first6=M. E.|last7=Smith|first7=R. C.|last8=Koribalski|first8=B.|last9=Meyer|first9=M.|last10=Oey|first10=M. S.|last11=Ryan-Weber|first11=E. V.|author11-link=Emma Ryan-Weber|last12=Zwaan|first12=M. A.|last13=Heckman|first13=T. M.|last14=Kennicutt, Jr|first14=R. C.|last15=Lee|first15=J. C.|last16=Webster|first16=R. L.|last17=Bland-Hawthorn|first17=J.|last18=Dopita|first18=M. A.|last19=Freeman|first19=K. C.|last20=Doyle|first20=M. T.|last21=Drinkwater|first21=M. J.|last22=Staveley-Smith|first22=L.|last23=Werk|first23=J.|journal=The Astrophysical Journal Supplement Series|volume=165|issue=1|pages=307–337|arxiv=astro-ph/0604444|bibcode=2006ApJS..165..307M|s2cid=9655238}}