J/AJ/109/269 J/AJ/109/269 Photometry of NGC 5053 A Sarajedini A A E Milone Astron. J. 109 269 1995 1995AJ....109..269S Clusters, globular Photometry (V,B-V), (V,V-I), and (V,B-I) color-magnitude diagrams are presented for NGC 5053, which is the most metal-poor globular cluster known in the galaxy. The horizontal branch (HB) is predominantly blueward of the RR Lyrae instability strip and the slope of the red giant branch (RGB) is relatively steep, both characteristic of a metal-poor system.

Star Star number --- Xpos X pixel position pix Ypos Y pixel position pix Vmag V magnitude mag B-V B-V color mag V-I V-I color mag o_B-V Number of frame pairs on which each B-V measurement was made --- o_V-I Number of frame pairs on which each V-I measurement was made --- CDS 1995Jul10AAS CD-ROM series, Vol. 4, 1995 Lee Brotzman [ADS] 29-Apr-1995 J_AJ_109_269.xml