NGC 2491

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NGC 2491
NGC 2491 SDSS 2.jpg
Observation data (J2000 epoch)
Constellation Canis Minor
Right ascension 07h 58m 27.37s
Declination +07d 59m 01.74s
Redshift 0.039290
Heliocentric radial velocity 18,476 km/s
Distance 583 Mly (178.74 Mpc)
Apparent magnitude  (V)14.8
Apparent magnitude  (B)15.6
Surface brightness 11.75
Characteristics
Type S
Size130,000 ly
Apparent size  (V)0.3' x 0.2'
Other designations
PGC 22353, 2MASX J07582739+0759018, SDSS J075827.37+075901.7, CGCG 031-007, 2MASS J07582738+0759019, NPM1G+08.0123, LEDA 22353

NGC 2491 is a spiral galaxy located in Canis Minor constellation. [1] It is located 580 million light-years from Earth and has an approximate diameter of 130,000 light-years. [2]

Details

NGC 2491 was discovered by American astronomer Lewis Swift on November 15, 1885. [3] Swift described it as extremely faint, small, with a round irregular shape, and a bright star to the west. [3] With a surface brightness of magnitude of 11.75, NGC 2491 is classified as a high surface brightness galaxy. [4]

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References

  1. "Revised NGC Data for NGC 2491". spider.seds.org. Retrieved 2024-04-23.
  2. "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-04-23.
  3. 1 2 "New General Catalog Objects: NGC 2450 - 2499". cseligman.com. Retrieved 2024-04-23.
  4. "Data from NGC and IC catalogue by Wolfgang Steinickle from NGC 2400-2499". astrovalleyfield.ca. Retrieved 2024-04-23.