Extended BVRI CCD photometry of the globular cluster NGC 2298

Details Extended BVRI CCD photometry of the globular cluster NGC 2298 Extended BVRI CCD photometry of the globular cluster NGC 2298

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26as...83..269a&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 83, no. 2, May 1990, p. 269-287.

Physics

Optics

14

Astronomical Photometry, Charge Coupled Devices, Globular Clusters, Cassegrain Optics, Color-Magnitude Diagram, Metallicity, Stellar Evolution, Telescopes

Scientific paper

From the two deep CCD frames in each of the colors BVRI, obtained with the 2.2-m Max-Planck-ESO telescope, preliminary photometry for the globular cluster NGC 2298 (Alcaino and Liller, 1986) are drastically improved. It is found that the main-sequence turnoff points are consistently located at V(TO) = 19.5 + or - 0.1, with colors at B-V = 0.57 + or - 0.02, V-R = 0.34 + or - 0.02, V-I = 0.72 + or - 0.02, and B-I = 1.28 + or - 0.03.

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