Class XI Right ascension 15 00 18.57 Distance 613 ly (188 pc) | Declination −82° 12′ 49.6″ Apparent magnitude (V) 9.76 | |
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IC 4499 is a loose globular cluster in the constellation Apus. It is located in the medium-far galactic halo. Its apparent magnitude is 9.76, and was thought to unusual because it appears to be 3-4 billion years younger than most other globular clusters in the Milky Way, as determined by metallicity measurements in 1995. However, this was contradicted in 2011 by results that yielded a much older age of 12 billion years.
References
IC 4499 Wikipedia(Text) CC BY-SA