Journal of Astronomy and Space Sciences
- Volume 11 Issue 2
- /
- Pages.147-153
- /
- 1994
- /
- 2093-5587(pISSN)
- /
- 2093-1409(eISSN)
CCD PHOTOMETRY OF THE GLOBULAR CLUSTER NGC 4372
- Yim, Hong-Suh (Yonsei University Observatory) ;
-
Lee, Young-Wook
(Yonsei University Observatory)
;
- Chum, Mun-Suk (Yonsei University Observatory)
- Published : 1994.12.01
Abstract
We present a deep(B, V) color-magnitude diagram (CMD) of the Galactic globular cluster NGC 4372. According to the recent inside-out picture of Galaxy formation, this cluster is predicted to be one of the oldest globulat clusters in the Galaxy. Our CMD shows a well defined main-sequence extending ∼ 2 magnitudes below the trunoff. Despite the uncertainty that stems from the small sample size of bright stars, comparison with the Revised Yale Isochrones suggests that this cluster may indeed be one of the oldest (∼16.6 Gyrs) globular clusters in our Galaxy.
Keywords