NGC 519
| NGC 519 | |
|---|---|
 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]
Observation history
[edit | edit source]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
[edit | edit source]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
[edit | edit source]References
[edit | edit source]- ^ a b c d Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c d e f g Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c 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
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
External links
[edit | edit source]
- NGC 519 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- SEDS
