Sculptor Dwarf Irregular Galaxy

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Sculptor Dwarf Irregular
Observation data (J2000 epoch)
ConstellationSculptor
Right ascension00h 08m 13.3s[1]
Declination−34° 34′ 42″[1]
Redshift221 ± 6 km/s[1]
Distance13.4 Mly (4.1 Mpc)[2]
Apparent magnitude (V)15.5[1]
Characteristics
TypeIBm[1]
Apparent size (V)1′.1 × 0′.9[1]
Other designations
SDIG,[1] PGC 621,[1] ESO 349-031[1]
See also: Galaxy, List of galaxies

The Sculptor Dwarf Irregular Galaxy (SDIG) is an irregular galaxy in the constellation Sculptor. The galaxy was discovered in 1976.[citation needed]

Nearby galaxies and galaxy group information[edit]

The Sculptor Dwarf Irregular Galaxy and the dwarf galaxy UGCA 442 are both companions of the spiral galaxy NGC 7793.[2] These galaxies all lie within the Sculptor Group, a weakly bound, filament-like group of galaxies located near the Local Group.[2]

Sculptor Dwarf Irregular Galaxy close up by Hubble Space Telescope

See also[edit]

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

References[edit]

  1. ^ a b c d e f g h i "NASA/IPAC Extragalactic Database". Results for Sculptor Dwarf Irregular. Retrieved 2007-03-15.
  2. ^ a b c I. D. Karachentsev; E. K. Grebel; M. E. Sharina; A. E. Dolphin; et al. (2003). "Distances to nearby galaxies in Sculptor". Astronomy and Astrophysics (abstract). 404 (1): 93–111. arXiv:astro-ph/0302045. Bibcode:2003A&A...404...93K. doi:10.1051/0004-6361:20030170.

External links[edit]

Coordinates: Sky map 00h 08m 13.3s, −34° 34′ 42″