2 papers
astro-ph2004
uvby-Hbeta CCD Photometry of NGC 1817 and NGC 1807
L. Balaguer-Nunez, C. Jordi, D. Galadi-Enriquez +1
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…
astro-ph2004
New membership determination and proper motions of NGC 1817. Parametric and non-parametric approach
L. Balaguer-Nunez, C. Jordi, D. Galadi-Enriquez +1
We have calculated proper motions and re-evaluated the membership probabilities of 810 stars in the area of two NGC objects, NGC 1817 and NGC 1807. We have obtained absolute proper…