M74 Group

M74 Group
Observation data (Epoch J2000)
Constellation(s)	Pisces
Right ascension	01h 43m[1][2]
Declination	+14° 22′[1][2]
Number of galaxies	5-7[3][1][2]
Brightest member	Messier 74[2]
Other designations
NGC 628 Group, LGG 29[1], NOGG H 94[2], NOGG P1 84[2], NOGG P2 87[2]
See also: Galaxy groups and clusters, List of galaxy clusters
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The M74 Group (also known as the NGC 628 Group) is a small group of galaxies in the constellation Pisces. The face-on spiral galaxy M74 (NGC 628) is the brightest galaxy within the group. Other members include the peculiar spiral galaxy NGC 660 and several smaller irregular galaxies ^[3][1][2].

Members

The table below lists galaxies that have been consistently identified as group members in the Nearby Galaxies Catalog^[3], the Lyons Groups of Galaxies (LGG) Catalog^[1], and the three group lists created from the Nearby Optical Galaxy sample of Giuricin et al.^[2].

Members of the M74 Group

Name	Type[4]	R.A. (J2000)[4]	Dec. (J2000)[4]	Redshift (km/s)[4]	Apparent Magnitude[4]
Messier 74	SA(s)c	01h 36m 41.8s	+15° 47′ 01″	657	10.0
NGC 660	SB(s)a pec	01h 43m 02.4s	+13° 38′ 42″	850	19.0
UGC 1176	Im	01h 40m 09.9s	+15° 54′ 17″	630	14.4
UGC 1195	Sc	01h 42m 27.0s	+13° 58′ 37″	774	13.9
UGC 1200	IBm	01h 42m 48.3s	+13° 09′ 22″	808	14.0

Other possible members galaxies (galaxies listed in only one or two of the lists from the above references) include the irregular galaxies UGC 891, UGC 1104, UGC 1171, UGC 1175, and UGCA 20.

References

1. ^ ^{a b c d e f} A. Garcia (1993). "General study of group membership. II - Determination of nearby groups". Astronomy and Astrophysics Supplement 100: 47–90. Bibcode 1993A&AS..100...47G. 
2. ^ ^{a b c d e f g h i} G. Giuricin, C. Marinoni, L. Ceriani, A. Pisani (2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". Astrophysical Journal 543 (1): 178–194. arXiv:astro-ph/0001140. Bibcode 2000ApJ...543..178G. doi:10.1086/317070. 
3. ^ ^{a b c} R. B. Tully (1988). Nearby Galaxies Catalog. Cambridge: Cambridge University Press. ISBN 0-521-35299-1. 
4. ^ ^{a b c d e} "NASA/IPAC Extragalactic Database". Results for various galaxies. http://nedwww.ipac.caltech.edu/. Retrieved 2006-09-16.