Astronomy:NGC 519
| NGC 519 | |
|---|---|
 NGC 519 as seen on SDSS | |
| Observation data (J2000[1] epoch) | |
| Constellation | Cetus[2] |
| Right ascension | 01h 24m 28.6s[3] |
| Declination | −01° 38′ 29″[3] |
| Redshift | 0.017756 ± 0.000260[1] |
| Helio radial velocity | (5276 ± 78) km/s[1] |
| Distance | 242 Mly[4] |
| Apparent magnitude (V) | 14.4[2] |
| Apparent magnitude (B) | 15.4[2] |
| Characteristics | |
| Type | E[2] |
| Apparent size (V) | 0.5' × 0.3'[2] |
| Other designations | |
| PGC 5182, MGC +00-04-116, 2MASS J01242863-0138284[1][5] | |
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 on 20 November 1886 by astronomer Lewis Swift.[5]
Observation history
Swift discovered the object along with NGC 530, 538 and 557 using a 16-inch refractor telescope at the Warner Observatory.[6] 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".[5]
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
- ↑ 1.0 1.1 1.2 1.3 "NGC 519". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+519.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 "Revised NGC Data for NGC 519". http://spider.seds.org/ngc/revngcic.cgi?NGC519.
- ↑ 3.0 3.1 "Your NED Search Results". http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+519.
- ↑ 4.0 4.1 4.2 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
- ↑ 5.0 5.1 5.2 "New General Catalog Objects: NGC 500 - 549" (in en-US). http://cseligman.com/text/atlas/ngc5.htm#519.
- ↑ "astronomy-mall.com/Adventures.In.Deep.Space/NGC%201-7840%20complete.htm". http://www.astronomy-mall.com/Adventures.In.Deep.Space/NGC%201-7840%20complete.htm.
External links
- NGC 519 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- SEDS
Coordinates: 
01h 24m 28.6s, -01° 38′ 29″
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