NGC 247

NGC 247
Image taken by the Wide Field Imager (WFI) at ESO's La Silla Observatory in Chile
Observation data (J2000 epoch)
Constellation	Cetus
Right ascension	00h 47m 08.5s[1]
Declination	-20° 45′ 37″[1]
Distance	11.1 ± 1.2 Mly
Type	SAB(s)d[1]
Apparent dimensions (V)	21′.4 × 6′.9[1]
Apparent magnitude (V)	9.9[1]
Other designations
HIPASS J0047-20, LEDA 2758, ESO-LV 540-0220, IRAS F00446-2101, 2MASX J00470855-2045374, ESO 540-22, IRAS 00446-2101, MCG-04-03-005, GLXY G113.8-83.5+144, KUG 0044-210, UGCA 11, PGC 2758,[1] Caldwell 62
See also: Galaxy, List of galaxies

NGC 247 (also known as Caldwell 62) is an Intermediate spiral galaxy about 11.1 Mly away in the constellation Cetus. This distance was confirmed in late February 2011. Previous measurements showed that the galaxy was about 12.2 Mly away, but was proved to be wrong. NGC 247 is a member of the Sculptor Group.

Nearby galaxies and galaxy group information

NGC 247 is one of several galaxies that is gravitationally bound to the Sculptor Galaxy (NGC 253). These galaxies form a small core in the center of the Sculptor Group, which is one of the nearest groups of galaxies to the Milky Way.^[2] Most other galaxies associated with the Sculptor Group are only weakly gravitationally bound to this core.^[2][3]

References

1. ^ ^{a b c d e f} "NASA/IPAC Extragalactic Database". Results for NGC 247. http://nedwww.ipac.caltech.edu/. Retrieved 2006-12-19. 
2. ^ ^{a b} I. D. Karachentsev (2005). "The Local Group and Other Neighboring Galaxy Groups". Astronomical Journal 129 (1): 178–188. arXiv:astro-ph/0410065. Bibcode 2005AJ....129..178K. doi:10.1086/426368. 
3. ^ I. D. Karachentsev, E. K. Grebel, M. E. Sharina, A. E. Dolphin, D. Geisler, P. Guhathakrta, P. W. Hodge, V. E. Karachentseva, A. Sarajedini, P. Seitzer (2003). "Distances to nearby galaxies in Sculptor". Astronomy and Astrophysics 404 (1): 93–111. arXiv:astro-ph/0302045. Bibcode 2003A&A...404...93K. doi:10.1051/0004-6361:20030170. 

http://www.eso.org/public/news/eso1107/

External links

• NGC 247 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

Coordinates: 00^h 47^m 08.5^s, −20° 45′ 37″

The news regarding the distance error: [1]