Sculptor Dwarf Irregular Galaxy

Sculptor Dwarf Irregular
	Sculptor Dwarf Irregular Galaxy close up by Hubble Space Telescope.
Observation data (J2000 epoch)
Constellation	Sculptor
Right ascension	00h 08m 13.36s
Declination	−34° 34′ 42.0″
Redshift	221 ± 6 km/s
Distance	10.44 ± 0.33 Mly (3.2 ± 0.1 Mpc)
Apparent magnitude (V)	15.5
Absolute magnitude (V)	−11.87
Characteristics
Type	dIrr
Apparent size (V)	1.1′ × 0.9′
Half-light radius (apparent)	29″.4 ± 1″.6
Other designations
	SDIG, PGC 621, ESO 349-031

Short description: Irregular galaxy in the constellation Sculptor

The Sculptor Dwarf Irregular Galaxy (SDIG) is an irregular galaxy in the constellation Sculptor. It is a member of the NGC 7793 subgroup of the Sculptor Group.^[1] The galaxy was discovered in 1976.^{[citation needed]}

Nearby galaxies and galaxy group information

The Sculptor Dwarf Irregular Galaxy and the dwarf galaxy UGCA 442 are both companions of the spiral galaxy NGC 7793.^[3] These galaxies all lie within the Sculptor Group, a weakly bound, filament-like group of galaxies located near the Local Group.^[3]

↑ ^1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 ^1.6 Lianou, S.; Cole, A. A. (2013). "The star formation history of the Sculptor dwarf irregular galaxy". Astronomy & Astrophysics 549: A47. doi:10.1051/0004-6361/201220193. Bibcode: 2013A&A...549A..47L.
↑ ^2.0 ^2.1 ^2.2 ^2.3 ^2.4 ^2.5 "NASA/IPAC Extragalactic Database". Results for Sculptor Dwarf Irregular. http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=Sculptor+Dwarf+Irregular#ObjNo1. Retrieved 2007-03-15.
↑ ^3.0 ^3.1 I. D. Karachentsev; E. K. Grebel; M. E. Sharina; A. E. Dolphin et al. (2003). "Distances to nearby galaxies in Sculptor". Astronomy and Astrophysics 404 (1): 93–111. doi:10.1051/0004-6361:20030170. Bibcode: 2003A&A...404...93K.