NGC 2841

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Coordinates: Sky map 9h 22m 02.6s, +50° 58′ 35″

NGC 2841
NGC2841 3.6 5.8 8.0 microns spitzer.png
Infrared image derived from data taken by the Spitzer Space Telescope.
Observation data (J2000 epoch)
Constellation Ursa Major
Right ascension 9h 22m 02.6s[1]
Declination +50° 58′ 35″[1]
Redshift 638 ± 3 km/s[1]
Type SA(r)b[1]
Apparent dimensions (V) 8′.1 × 3′.5[1]
Apparent magnitude (V) 10.1[1]
Other designations
UGC 4966, PGC 26512[1]
See also: Galaxy, List of galaxies

NGC 2841 is an inclined unbarred spiral galaxy in the constellation Ursa Major. Initially thought to be about 30 million light years distant, a 2001 Hubble Space Telescope survey of the galaxy's Cepheid variables determined that it was approximately 14.1 megaparsecs or 46 million light years distant.[2]

Structure[edit]

Structurally, NGC 2841 is a giant spiral galaxy with properties similar to those of the Andromeda Galaxy.[2] It is a prototypical flocculent spiral galaxy, a type of spiral galaxy whose arms are patchy and discontinuous.[3]

NGC 2841 is also noted for its large population of young blue stars, and few H II regions.[4]

LINER emission[edit]

NGC 2841 contains a low-ionization nuclear emission-line region (LINER), a type of region that is characterized by spectral line emission from weakly ionized atoms.[5]


See also[edit]


References[edit]

  1. ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 2841. Retrieved 2006-10-04. 
  2. ^ a b Macri, L. M.; Stetson, P. B.; Bothun, G. D.; Freedman, W. L.; Garnavich, P. M.; Jha, S.; Madore, B. F.; Richmond, M. W. (September 2001). "The Discovery of Cepheids and a New Distance to NGC 2841 Using the Hubble Space Telescope". Astrophysical Journal (University of Chicago Press) 559 (1): 243–259. arXiv:astro-ph/0105491. Bibcode:2001ApJ...559..243M. doi:10.1086/322395. ISSN 0004-637X. 
  3. ^ "A Near-Infrared Atlas of Spiral Galaxies", Debra Meloy Elmegreen, "CH3. Discussion" (accessed 23 April 2010)
  4. ^ Marochnik, Leonid; Suchkov, Anatoly (1995-11-01). Milky Way Galaxy (1st ed.). Routledge. p. 267. ISBN 2-88124-931-0. 
  5. ^ L. C. Ho, A. V. Filippenko, W. L. W. Sargent (1997). "A Search for "Dwarf" Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies". Astrophysical Journal Supplement 112 (2): 315–390. arXiv:astro-ph/9704107. Bibcode:1997ApJS..112..315H. doi:10.1086/313041.