Deep CCD Photometry of Omega Centauri
作者： R. G. Noble , J. Buttress , W. K. Griffiths , A. J. Penny , R. J. Dickens
DOI: 10.1007/978-94-015-1104-9_138
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摘要: This paper presents a color magnitude diagram for the enigmatic cluster ω Centauri (NGC 5139 = C1328 - 472) tracing main sequence down to V ∼ 21.5. The spread in on upper is confirmed as intrinsic cluster. CCD observations were made using SAAO 1 m telescope with UCL camera and RGO at prime focus of AAT.
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