NGC 519

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NGC 519
NGC519 - SDSS DR14.jpg
NGC 519 imabed by SDSS
Observation data (J2000 [1] epoch)
Constellation Cetus [2]
Right ascension 01h 24m 28.6390s [3]
Declination −01° 38′ 28.526″ [3]
Redshift 0.017756 ± 0.000260 [1]
Heliocentric radial velocity (5276 ± 78) km/s [1]
Distance 242 Mly [4]
Group or cluster Abell 194 [5]
Apparent magnitude  (V)14.4 [2]
Apparent magnitude  (B)15.4 [2]
Characteristics
Type E [2]
Size~53,500  ly (16.39  kpc) (estimated) [3]
Apparent size  (V)0.5′ × 0.3′ [2]
Other designations
2MASS J01242863-0138284, MCG +00-04-116, PGC 5182, CGCG 385-103 [1] [6]

NGC 519, also occasionally referred to as PGC 5182, is an elliptical galaxy located approximately 242 million light-years from the Solar System [4] in the constellation Cetus. [2] It was discovered by American astronomer Lewis Swift on 20 November 1886. [6] It is a member of the Abell 194 galaxy cluster. [5]

Contents

Observation history

Swift discovered the object along with NGC 530, 538 and 557 using a 16-inch refractor telescope at the Warner Observatory. [7] It was later catalogued by John Louis Emil Dreyer in the New General Catalogue, where the galaxy was described as "most extremely faint, very small, round, very difficult". [6]

Description

The galaxy appears very dim in the sky as it only has an apparent visual magnitude of 14.4. It can be classified as type E using the Hubble Sequence. [2] The object's distance of roughly 240 million light-years from the Solar System can be estimated using its redshift and Hubble's law. [4]

See also

References

  1. 1 2 3 4 "NGC 519". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2017-12-09.
  2. 1 2 3 4 5 6 7 "Revised NGC Data for NGC 519". spider.seds.org. Retrieved 2017-10-05.
  3. 1 2 3 "Results for object NGC 0519". NASA/IPAC Extragalactic Database. NASA and Caltech . Retrieved 2017-10-05.
  4. 1 2 3 An object's distance from Earth can be determined using Hubble's law: v=Ho is Hubble's constant (70±5 (km/s)/Mpc). The relative uncertainty Δd/d divided by the distance is equal to the sum of the relative uncertainties of the velocity and v=Ho
  5. 1 2 Abell, G.O. (1958). "The distribution of rich clusters of galaxies". Astrophysical Journal Supplement Series. 3: 211–288. Bibcode:1958ApJS....3..211A.
  6. 1 2 3 "New General Catalog Objects: NGC 500 - 549". cseligman.com. Retrieved 2017-10-16.
  7. ↑ "astronomy-mall.com/Adventures.In.Deep.Space/NGC%201-7840%20complete.htm".
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