NGC 5502

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NGC 5502
NGC5502 - SDSS DR14.jpg
SDSS image of NGC 5502
Observation data (J2000 epoch)
Constellation Ursa Major
Right ascension 14h 09m 33.9s [1]
Declination +60° 24′ 34.3″ [1]
Redshift 0.02940 [1]
Helio radial velocity 8684 km/s [1]
Galactocentric velocity8949 km/s [2]
Distance 400 ± 28 Mly
(122.6 ± 8.6 Mpc) [2]
Apparent magnitude  (V)15.9 [2]
Absolute magnitude  (V)-19.5 [nb 1]
Characteristics
Type Sa D [2]
Apparent size  (V)0.63' x 0.29' [2]
Other designations
MCG +10-20-077, PGC 50508 [1] [3]

NGC 5502 (also known as NGC 5503) is a spiral galaxy in the constellation of Ursa Major, [3] [4] registered in New General Catalogue (NGC). [1]

Contents

Observation history

NGC 5502 was discovered by Edward Swift (father) on 9 May 1885 and later double listed by Lewis Swift (son) two days later on 11 May 1885 as NGC 5503. [3] They gave descriptions "between two stars, one a wide double" and "forms with two stars a right triangle" respectively. [4] In the New General Catalogue, John Louis Emil Dreyer described the galaxy as "most extremely faint, very small, round, very difficult, 2 stars near". [3] The apparent difference in positions (2 arcmin) could have caused the confusions between NGC 5502 and NGC 5503. [3]

Notes

  1. ↑ Calculated from Galactocentric GSR Distance modulus [2]

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References

  1. 1 2 3 4 5 6 "NGC 5502". SIMBAD. Archived from the original on 29 November 2022. Retrieved 30 November 2022.
  2. 1 2 3 4 5 6 "Results for object NGC 5502". NASA/IPAC Extragalactic Database. Retrieved 4 December 2022.
  3. 1 2 3 4 5 Seligman, Courtney. "NGC 5502 (= PGC 50508 = NGC 5503)". Seligman website. Retrieved 5 December 2022.
  4. 1 2 "NGC 5502". Deep Sky Observer's Companion – the online database. Archived from the original on 11 March 2016. Retrieved 6 December 2022.
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