NGC 496

Last updated
NGC 496
NGC496 - SDSS DR14.jpg
SDSS view of NGC 496
Observation data (J2000 [1] epoch)
Constellation Pisces [2]
Right ascension 01h 23m 11.6s [3]
Declination +33° 31′ 45″ [3]
Redshift +0.020258 ± 0.000093 [1]
Heliocentric radial velocity (6011.7 ± 27.8) km/s [1]
Distance 250 Mly [4]
Apparent magnitude  (V)13.4 [2]
Characteristics
Type Sbc [2]
Apparent size  (V)1.6' × 0.9' [2]
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 [2] [1] [5]

NGC 496, also occasionally referred to as PGC 5037, UGC 927 or GC 288, is a spiral galaxy in the constellation Pisces. [2] It is located approximately 250 million light-years from the Solar System [4] and was discovered on 12 September, 1784 by astronomer William Herschel. [5]

Contents

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." [6]

NGC 496 was later also observed by Bindon Blood Stoney. [5] This position is also noted in the New General Catalogue. [6]

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.


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