Class XII Right ascension 03 33 20.04 Apparent magnitude (V) +13.18 | Constellation Cepheus Declination +79° 34′ 51.8″ | |
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Distance 36.5 ± 4.2 kly (11,200 ± 1,300 pc) | ||
Palomar 1 is a globular cluster in the constellation Cepheus in the halo or Outer Arm(?) of the Milky Way galaxy. First discovered by George O. Abell in 1954 on the Palomar Survey Sky plates, it was catalogued as a globular cluster. At 6.3 to 8 Gyr, it is a very young cluster when compared to the other globular clusters in the Milky Way. It is a relatively metal-rich globular with [Fe/H] = -0.60. It is likely that Palomar 1 has a similar evolutionary history to the Sagittarius dwarf companion globular Terzan 7, that is, it may have once been associated with a dwarf spheroidal galaxy that was later destroyed by tidal forces.
References
Palomar 1 Wikipedia(Text) CC BY-SA