VizieR Online Data Catalog: Globular cluster NGC 6397 variable stars (Ahumada+, 2021)
Abstract
The data of NGC 6397 used in this work were obtained from the 1.54-m telescope at the Bosque Alegre Station (Cordoba, Argentina) and the 1-m Swope Telescope at Las Campanas (Chile). Useful fields: 10x10 and 15x15 arcmin. Filters: V (748 images) and I (737 images). Data from 2017 and 2018. Star membership was assessed from Gaia DR2 positions and proper motions, resulting that almost 13000 stars are considered members of the cluster. Time-series photometry was processed using Difference Image Analysis.
(2 data files).- Publication:
-
VizieR Online Data Catalog (other)
- Pub Date:
- August 2021
- Bibcode:
- 2021yCatp022008801A
- Keywords:
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- Clusters: globular;
- Stars: variable;
- Photometry: VRI