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| epoch = [[J2000]]
| epoch = [[J2000]]
| constellation name = [[Pisces (constellation)|Pisces]]
| constellation name = [[Pisces (constellation)|Pisces]]
| ra = {{RA|01|40|08.698}}<ref name=2MASS>{{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 |url=https://ui.adsabs.harvard.edu/abs/2006AJ....131.1163S/abstract |issn=0004-6256 |doi-access=free }}</ref>
| ra = {{RA|01|40|08.698}}<ref name=2MASS>{{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 }}</ref>
| dec = {{DEC|+05|43|36.18}}<ref name=2MASS/>
| dec = {{DEC|+05|43|36.18}}<ref name=2MASS/>
| z = 0.011028<ref name=SIMBAD>{{cite simbad|title=NGC 645|access-date=2020-05-20}}</ref>
| z = 0.011028<ref name=SIMBAD>{{cite simbad|title=NGC 645|access-date=2020-05-20}}</ref>
| h_radial_v = 3288 km/s<ref name=SIMBAD/>
| h_radial_v = 3288 km/s<ref name=SIMBAD/>
| dist_ly = {{cvt|34.36|Mpc|Mly|order=flip|lk=on}}<ref name=Cosmicflows3>{{cite journal|bibcode=2016AJ....152...50T|doi=10.3847/0004-6256/152/2/50|arxiv=1605.01765|title=Cosmicflows-3|author1=Tully, R. Brent|author2=Courtois, Hélène M.|author3=Sorce, Jenny G.|journal=The Astronomical Journal|volume=152|issue=2|id=50|pages=21|date=2016|s2cid=250737862 }}</ref>
| dist_ly = {{cvt|34.36|Mpc|Mly|order=flip|lk=on}}<ref name=Cosmicflows3>{{cite journal|bibcode=2016AJ....152...50T|doi=10.3847/0004-6256/152/2/50|arxiv=1605.01765|title=Cosmicflows-3|author1=Tully, R. Brent|author2=Courtois, Hélène M.|author3=Sorce, Jenny G.|journal=The Astronomical Journal|volume=152|issue=2|id=50|pages=21|date=2016|s2cid=250737862 }}</ref>
| group_cluster =
| group_cluster =
| type = SB:b<ref name=SIMBAD/>
| type = SB:b<ref name=SIMBAD/>

Latest revision as of 07:15, 25 August 2023

NGC 645
SDSS image of NGC 645
Observation data (J2000 epoch)
ConstellationPisces
Right ascension01h 40m 08.698s[1]
Declination+05° 43′ 36.18″[1]
Redshift0.011028[2]
Heliocentric radial velocity3288 km/s[2]
Distance112.1 Mly (34.36 Mpc)[3]
Apparent magnitude (B)13.8[2]
Characteristics
TypeSB:b[2]
Other designations
UGC 1177, MCG +01-05-016, PGC 6172[2]

NGC 645 is a barred spiral galaxy in the constellation Pisces. It is estimated to be 112 million light-years from the Milky Way[3] and has a diameter of approximately 115,000 light years. The object was discovered on October 27, 1864 by astronomer Albert Marth.[4][5][6]

NGC 645 (SDSS)

See also

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References

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  1. ^ a b Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. ISSN 0004-6256. S2CID 18913331.
  2. ^ a b c d e "NGC 645". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-05-20.
  3. ^ a b Tully, R. Brent; Courtois, Hélène M.; Sorce, Jenny G. (2016). "Cosmicflows-3". The Astronomical Journal. 152 (2): 21. arXiv:1605.01765. Bibcode:2016AJ....152...50T. doi:10.3847/0004-6256/152/2/50. S2CID 250737862. 50.
  4. ^ Ford, Dominic. "The galaxy NGC 645 - In-The-Sky.org". in-the-sky.org. Retrieved 2020-04-03.
  5. ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2020-04-03.
  6. ^ "Revised NGC Data for NGC 645". spider.seds.org. Retrieved 2020-04-03.
[edit]
  • Media related to NGC 645 at Wikimedia Commons


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