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NGC 262 (also known as Markarian 348) is a huge spiral galaxy in the cluster LGG 14.[1] It is a Seyfert 2 spiral galaxy located 287 million light years away in the constellation Andromeda.[2] It was discovered on September 17, 1885 by Lewis A. Swift.

NGC 262
SDSS NGC 262 sdss.org.jpg
NGC 262 as imaged by the SDSS.
Observation data (J2000 epoch)
ConstellationAndromeda
Right ascension 00h 48m 47.14154s[1]
Declination+31° 57′ 25.08″[1]
Distance287 million light-years (88 Mpc)[2]
Apparent magnitude (V)13.1
Characteristics
TypeS0a
Apparent size (V)1,1' × 1,1'
Other designations
2MASX J00484711+3157249, UGC 499, Markarian 348 [1]
See also: Galaxy, List of galaxies

SizeEdit

This galaxy has an apparent diameter of approximately 1.3 million light-years, occupying 1.1' of the Earth's sky.[3] It holds approximately 15 trillion stars.[citation needed] NGC 262 was tidally disturbed by the gravitational forces of smaller galaxies, which resulted in its large size.[3]

NGC 262 is very unusual, since it is 10 times larger than a regular spiral galaxy of its type.[2] According to Morris and Wannier, NGC 262 is surrounded by a huge cloud of neutral hydrogen[2] that is probably caused by the tidal stripping of smaller galaxies. The cloud has an apparent mass of approximately 50 billion solar masses[2] at a distance of 88 kiloparsecs (287,000 light-years) [2] from the nucleus of NGC 262 and extending up to 300 kiloparsecs (1 million light-years) away.[2] The cloud is spiral shaped with at least one arm, and possibly another one extending throughout the galaxy.

ReferencesEdit

  1. ^ a b c d "SIMBAD query result". Basic data for NGC 262.
  2. ^ a b c d e f g Huchra, J. (May 15, 1980). "The optical properties of the unusual galaxy Markarian 348". The Astrophysical Journal. 238: 11–12. Bibcode:1980ApJ...238L..11H. doi:10.1086/183246.
  3. ^ a b "The New York Times". Distant galaxy found to be largest known. 1987-03-13.