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Title: CCD photometry in VRI bands of the galactic cluster NGC 2818
Authors: Surendiranath, R
Kameswara Rao, N
Sagar, R
Nathan, J. S
Ghosh, K. K
Keywords: Astronomical photometry;Charge coupled devices;Infrared photometry;Open clusters;Planetary nebulae;Visual photometry;Color-magnitude diagram;Interstellar extinction;Stellar magnitude;Stellar mass;Telescopes
Issue Date: Jun-1990
Publisher: Indian Academy of Sciences
Citation: Journal of Astrophysics and Astronomy, Vol. 11, No. 2, pp. 151 - 166
Abstract: The open cluster NGC 2818 containing a planetary nebula has been observed in VRI bands using the CCD system at prime focus of the 2.3 meter Vainu Bappu Telescope. The study extending to stars V of 21 magnitude established the distance modulus as (m - M)0 = 12.9 + or - 0.1 for the cluster. Based on the fitting of theoretical isochrones computed for solar metallicity, an age of 5(+ or - 1) x 10 to the 8th years has been assigned to the cluster. Association of the planetary nebula with the cluster indicates that the progenitor mass of the planetary nebula on the main sequence is at least 2.5 M solar masses.
ISSN: 0250-6335
Appears in Collections:IIAP Publications

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