CCD photometry of NGC 2419
The properties of the globular cluster NGC 2419 are reexamined using CCD photometry deepened to the vicinity of the main-sequence turnoff. A new color-magnitude diagram is derived that extends to V = 24.5 mag. It is concluded that NGC 2419 is an outer-halo analog of the metal-poor globulars closer to the Galactic center. NGC 2419 is probably nearly the same age as M15 and differs only slightly, if at all, in metallicity. NGC 2419 has many similarities with the clusters NGC 5466, M15, and M92. Comparison of the data with the isochrones of VandenBerg and Bell (1985) implies a distance modulus of 20.1 with Delta (B-V) = 0.18 mag. Oxygen-rich models can be fit to the data; such a comparison yields a lower limit to the acceptable distance modulus of the cluster. 26 references.
- Research Organization:
- Hawaii Univ., Honolulu (USA); Canada-France-Hawaii Telescope Corp., Kamuela, HI (USA)
- OSTI ID:
- 6935382
- Journal Information:
- Astron. J.; (United States), Journal Name: Astron. J.; (United States) Vol. 95; ISSN ANJOA
- Country of Publication:
- United States
- Language:
- English
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Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AGE ESTIMATION
CHEMICAL COMPOSITION
COMPARATIVE EVALUATIONS
DISTANCE
DISTRIBUTION
GALAXIES
MILKY WAY
PHOTOMETRY
SPATIAL DISTRIBUTION
STAR CLUSTERS
STAR EVOLUTION