NGC 499

NGC 499
SDSS view of NGC 499 and the smaller NGC 498
Observation data (J2000 epoch)
ConstellationPisces
Right ascension01h 23m 11.5s
Declination+33° 27′ 28″
Redshift+0.014691 ± 0.000117
Heliocentric radial velocity(4372 ± 35.2) km/s
Distance197 Mly
Apparent magnitude (V)12.2
Characteristics
TypeE-S0
Apparent size (V)1.7' × 1.3'
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

NGC 499, also occasionally referred to as PGC 5060, IC 1686 or GC 289, is a lenticular galaxy in the constellation Pisces. It is located approximately 197 million light-years from the Solar System and was discovered on 12 September 1784 by astronomer William Herschel.

The NGC 499 Group is named after the galaxy. 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.

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."

NGC 499 was later also observed by William Herschel's son John Herschel and independently found by Stéphane Javelle in 1899.

See also

References

  1. 1 2 3 4 "NGC 499". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-11-07.
  2. 1 2 3 4 5 6 "Revised NGC Data for NGC 499". spider.seds.org. Retrieved 2017-10-05.
  3. 1 2 3 "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-11-07.
  4. 1 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. 1 2 3 "New General Catalog Objects: NGC 450 - 499". cseligman.com. Retrieved 2017-11-07.
  6. ↑ 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. 1 2 "astronomy-mall.com/Adventures.In.Deep.Space/NGC%201-7840%20complete.htm". Astronomy Mall. Retrieved 2017-11-07.