Astronomy:NGC 527
| NGC 527 | |
|---|---|
 NGC 527 as seen by DECam | |
| Observation data (J2000[1] epoch) | |
| Constellation | Sculptor[2] |
| Right ascension | 01h 23m 58.0s[3] |
| Declination | −35° 06′ 55″[3] |
| Redshift | 0.019243 ± 0.000057[1] |
| Helio radial velocity | (5713 ± 17) km/s[1] |
| Distance | 259 Mly[4] |
| Apparent magnitude (V) | 13.2[2] |
| Apparent magnitude (B) | 14.1[2] |
| Characteristics | |
| Type | SB0-a[2] |
| Apparent size (V) | 1.6' × 0.3'[2] |
| Other designations | |
| PGC 5128, PGC 5141, GC 310, MGC -06-04-021, 2MASS J01235812-3506545, h 2409[1][5] | |
NGC 527, also occasionally referred to as PGC 5128 or PGC 5141, is a lenticular galaxy located approximately 259 million light-years from the Solar System[4] in the constellation Sculptor.[2] It was discovered on 1 September 1834 by astronomer John Herschel. [5]
Observation history
Herschel discovered the object along with NGC 526. [6] The object was later catalogued by John Louis Emil Dreyer in the New General Catalogue, where the galaxy was described as "faint, small, a little extended, brighter middle, the following (eastern) of 2" with the other one being NGC 526.[5]
Description
The galaxy has an apparent visual magnitude of 13.2 and can be classified as type SB0-a using the Hubble Sequence.[2] The object's distance of roughly 260 million light-years from the Solar System can be estimated using its redshift and Hubble's law.[4]
Companion galaxy PGC 5142
NGC 527 has a much dimmer magnitude 14 companion galaxy (PGC 5142). Although this galaxy is not an NGC object, it is sometimes referred to as NGC 527B. The galaxy has an apparent size of 1.6' × 0.3' and a recessional velocity of approximately 5880 km/s.
See also
References
- ↑ 1.0 1.1 1.2 1.3 "NGC 527". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+527.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 "Revised NGC Data for NGC 527". http://spider.seds.org/ngc/revngcic.cgi?NGC527.
- ↑ 3.0 3.1 "Your NED Search Results". http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+527.
- ↑ 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#527.
- ↑ "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 527 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- SEDS
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Coordinates: 
01h 23m 58.0s, -35° 06′ 55″
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