NGC 2775

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NGC 2775
NGC2775-hst-R814GB450.jpg
Image derived from Hubble Space Telescope.
Observation data (J2000 epoch)
Constellation Cancer
Right ascension 9h 10m 20.1s[1]
Declination +07° 02′ 16.6″[1]
Redshift 1354 ± 5 km/s[1]
Distance 55.5 Mly (17 Mpc)
Apparent magnitude (V) 11.03[1]
Characteristics
Type SA(r)ab[1]
Apparent size (V) 4′.3 × 3′.3[1]
Other designations
UGC 4820, PGC 25861,[1] Caldwell 48
See also: Galaxy, List of galaxies

NGC 2775 (also known as Caldwell 48) is an unbarred spiral galaxy with a prominent ring structure in the constellation Cancer. In the Catalogue of Named Galaxies, it is called Melanophrys Cancri, or the black-browed galaxy, after its dark dust belt.[2] This galaxy has a bulge and multiple spiral arms, on which few HII regions can be detected, implying recent star formation. It was discovered by William Herschel in 1783.

NGC 2775 is the most prominent galaxy in a small galaxy group known as NGC 2775 group, part of the Virgo Supercluster, along with the Local Group. Other members of the NGC 2775 group include NGC 2777 and UGC 4781.[3]

SN1993z is the only supernova known to have occurred in NGC 2775 and was a Type Ia on Sept. 23rd that year at a magnitude of 13.9.[4] By the 25th, spectra that was obtained showed that it had peaked four weeks earlier.[5]

Gallery[edit]

References[edit]

  1. ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 2775. Retrieved 2010-03-24. 
  2. ^ Bodifee, Gerard. "Catalogue of One Thousand Named Galaxies" (PDF). Retrieved 21 May 2017. 
  3. ^ "A List of Nearby Galaxy Groups". Atlas of the Universe. Retrieved 2010-11-28. 
  4. ^ "List of Supernovae". IAU Central Bureau for Astronomical Telegrams. Retrieved 2012-01-10. 
  5. ^ "IAUC 5870: N Lup 1993; 1993Y; 1993Z". IAU Central Bureau for Astronomical Telegrams. Retrieved 2015-11-23. 

External links[edit]