NGC 496

NGC 496
NGC 496
SDSS view of NGC 496
Observation data (J2000 epoch)
ConstellationPisces
Right ascension01h 23m 11.6s
Declination+33° 31′ 45″
Redshift+0.020258 ± 0.000093
Heliocentric radial velocity(6011.7 ± 27.8) km/s
Distance250 Mly
Apparent magnitude (V)13.4
Characteristics
TypeSbc
Apparent size (V)1.6' × 0.9'
Other designations
PGC 5061, UGC 927, GC 288, MCG 5-4-36, 2MASS J01231161+3331452, H 3.157, IRAS 01203+3316, CGCG 502-60, KUG 0120+332A

NGC 496, also occasionally referred to as PGC 5037, UGC 927 or GC 288, is a spiral galaxy in the constellation Pisces. It is located approximately 250 million light-years from the Solar System and was discovered on 12 September 1784 by astronomer William Herschel.

Observation history

The object was discovered by Herschel along with NGC 495 and NGC 499. He initially described the discovery as "Three [NGC 496 along with NGC 495 and 499], 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 496 was later also observed by Bindon Blood Stoney. This position is also noted in the New General Catalogue.

See also

References

  1. 1 2 3 4 "NGC 496". Retrieved 2017-11-07.
  2. 1 2 3 4 5 6 "Revised NGC Data for NGC 496". spider.seds.org. Retrieved 2017-10-05.
  3. 1 2 "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. 1 2 "astronomy-mall.com/Adventures.In.Deep.Space/NGC%201-7840%20complete.htm". Astronomy Mall. Retrieved 2017-11-07.