uvby–H$_{eta}$ CCD photometry of NGC 1817 and NGC 1807
- 18 October 2004
- journal article
- Published by EDP Sciences in Astronomy & Astrophysics
- Vol. 426 (3) , 827-834
- https://doi.org/10.1051/0004-6361:20041333
Abstract
We have investigated the area of two NGC entries, NGC 1817 and NGC 1807, with deep CCD photometry in the uvby– intermediate-band system. The photometric analysis of a selected sample of stars of the open cluster NGC 1817 yields a reddening value of = , a distance modulus of = , a metallicity of [Fe/H] = and an age of = . Our measurements allow us to confirm that NGC 1807 is not a physical cluster.Keywords
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