NGC 2419

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NGC 2419
Observation data (J2000 epoch)
Constellation Lynx
Right ascension 07h 38m 08.51s[1]
Declination +38° 52′ 54.9″[1]
Distance 275 kly (from the Sun)
300 kly (from the GC) (84.2 kpc (Sun)
91.5 kpc (GC)[2])
Apparent magnitude (V) +9.06[1]
Apparent dimensions (V) 6′
Physical characteristics
Mass kg ( M{\odot})
Radius 260 ly[3]
VHB 20.45[2]
Other designations GCl 112[1]
See also: Globular cluster, List of globular clusters
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NGC 2419 is a globular cluster in the constellation Lynx. It was discovered by William Herschel on December 31, 1788.[citation needed] NGC 2419 is at a distance of about 300,000 light years away from the solar system and at the same distance from the galactic center. Its orbit brings it further away from galactic center than the Magellanic Clouds, but it can questionably be assigned as being an element of the Milky Way. At this great distance it takes three billion years to make one trip around the galaxy.[4]. The cluster is relatively dim as seen from earth, however astronomer Leos Ondra has noted that it would be the "best and brightest" for any observers in the Andromeda Galaxy, looking for globular clusters in our galaxy since it lies outside the obscuring density of the main disk.[4] This is analogous to the way the cluster G1 can be seen orbiting outside of Andromeda from earth.

[edit] External links

[edit] References

  1. ^ a b c d SIMBAD Astronomical Database. Results for NGC 2419. Retrieved on 2006-11-17.
  2. ^ a b Harris, W.E. (1996). "A Catalog of Parameters for Globular Clusters in the Milky Way". AJ 112: 1487. doi:10.1086/118116. 
  3. ^ distance × sin( diameter_angle / 2 ) = 260 ly. radius
  4. ^ a b Ferris, Timothy. Seeing in the Dark. 2002. p. 244
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