uvby-Hbeta CCD Photometry of NGC 1817 and NGC 1807

Preprint

21 July 2004

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/0407456

Abstract

We have investigated the area of two NGC entries, NGC 1817 and NGC 1807, with deep CCD photometry in the uvby-Hbeta intermediate-band system. The photometric analysis of a selected sample of stars of the open cluster NGC 1817 yields a reddening value of E(b-y)= 0.19$\pm$0.05, a distance modulus of V0-MV= 10.9$\pm$0.6, a metallicity of [Fe/H]= -0.34$\pm$0.26 and an age of log t = 9.05$\pm$0.05. Our measurements allow us to confirm that NGC 1807 is not a physical cluster.

Keywords

INTERMEDIATE BAND
CCD PHOTOMETRY
UVBY HBETA
PHOTOMETRY
HBETA CCD
TWO NGC

All Related Versions

Version 1, 2004-07-21, ArXiv
Published version: Astronomy & Astrophysics, 426 (3), 827.

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