Sculptor Dwarf Irregular Galaxy

Not to be confused with the Sculptor Galaxy or the Sculptor Dwarf Galaxy.

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]

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[1]
Declination	−34° 34′ 42.0″[1]
Redshift	221 ± 6 km/s[2]
Distance	10.44 ± 0.33 Mly (3.2 ± 0.1 Mpc)[1]
Apparent magnitude (V)	15.5[2]
Absolute magnitude (V)	−11.87[1]
Characteristics
Type	dIrr[1]
Apparent size (V)	1.1′ × 0.9′[2]
Half-light radius (apparent)	29″.4 ± 1″.6[1]
Other designations
SDIG,[2] PGC 621,[2] ESO 349-031[2]

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]

See also

• Sculptor Dwarf Galaxy – a dwarf spheroidal or elliptical galaxy, also in Sculptor, but significantly closer; a satellite of the Milky Way.