NGC 499 explained

NGC 499
Epoch:J2000[1]
Ra:[2]
Constellation Name:Pisces[3]
Type:E-S0
Appmag V:12.2
H Radial V:(4372 ± 35.2) km/s
Dist Ly:197 Mly[4]
Z:+0.014691 ± 0.000117
Size V:1.7' × 1.3'
Names:PGC 5060, IC 1686, UGC 926, GC 289, MCG 5-4-38, 2MASS J01231145+3327362, H 3.158, h 106, CGCG 502-059[5]

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.[2]

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."[6]

NGC 499 was later also observed by William Herschel's son John Herschel and independently found by Stéphane Javelle in 1899.[6]

See also

External links

Notes and References

  1. NGC 499 . 2017-11-07.
  2. Web site: Your NED Search Results. ned.ipac.caltech.edu . 2017-11-07.
  3. Web site: Revised NGC Data for NGC 499 . spider.seds.org . 2017-10-05.
  4. 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. Web site: New General Catalog Objects: NGC 450 - 499 . cseligman.com . en-US . 2017-11-07.
  6. Web site: astronomy-mall.com/Adventures.In.Deep.Space/NGC%201-7840%20complete.htm. Astronomy Mall. 2017-11-07.