Astronomy:NGC 499
| NGC 499 | |
|---|---|
 | |
| Observation data (J2000[1] epoch) | |
| Constellation | Pisces[2] |
| Right ascension | 01h 23m 11.5s[3] |
| Declination | +33° 27′ 28″[3] |
| Redshift | +0.014691 ± 0.000117[1] |
| Helio radial velocity | (4372 ± 35.2) km/s[1] |
| Distance | 197 Mly[4] |
| Apparent magnitude (V) | 12.2[2] |
| Characteristics | |
| Type | E-S0[2] |
| Apparent size (V) | 1.7' × 1.3'[2] |
| Other designations | |
| PGC 5060, IC 1686, UGC 926, GC 289, MCG 5-4-38, 2MASS J01231145+3327362, H 3.158, h 106, CGCG 502-059[2][1][5] | |
NGC 499, also occasionally referred to as PGC 5060, IC 1686 or GC 289, is a lenticular galaxy in the constellation Pisces.[2] It is located approximately 197 million light-years from the Solar System[4] and was discovered on 12 September 1784 by astronomer William Herschel.[5]
The NGC 499 Group is named after the galaxy.[3] NGC 499 is part of a galaxy group known as NGC 499 Group or LGG 24. It has at least 6 members, which are NGC 495, NGC 517, NGC 504, NGC 582 and PGC 5026.[6]
Observation history
The object was discovered by Herschel along with NGC 495 and NGC 496. He initially described the discovery as "Three [NGC 499 along with NGC 495 and 496], eS and F, forming a triangle.". As he observed the trio again the next night, he was able to make out more detail: "Three, forming a [right triangle]; the [right angle] to the south NGC 499, the short leg preceding [NGC 496], the long towards the north [NGC 495]. Those in the legs [NGC 496 and 495] the faintest imaginable; that at the rectangle [NGC 499] a deal larger and brighter, but still very faint."[7]
NGC 499 was later also observed by William Herschel's son John Herschel[5] and independently found by Stéphane Javelle in 1899.[7]
See also
- Lenticular Galaxy
- List of NGC objects (1–1000)
- Pisces (constellation)
References
- ↑ 1.0 1.1 1.2 1.3 "NGC 499". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+499.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 "Revised NGC Data for NGC 499". http://spider.seds.org/ngc/revngcic.cgi?NGC499.
- ↑ 3.0 3.1 3.2 "Your NED Search Results". http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+499.
- ↑ 4.0 4.1 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 450 - 499" (in en-US). http://cseligman.com/text/atlas/ngc4a.htm#499.
- ↑ Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy & Astrophysics Supplement Series 100: 47–90. Bibcode: 1993A&AS..100...47G.
- ↑ 7.0 7.1 "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 499 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- SEDS
Coordinates: 
01h 23m 11.5s, +33° 27′ 28″
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