Palomar 15 / C1657-004 (Updated March 2014) RA: 16:59:51.0 DEC: -00:32:20 (J2000) ============================================================ Bytes Format Explanation 1-8 A8 Star ID 10-32 A11,1x,A11 Position 34-35 A2 Units for position R0 denotes RA, DEC in the J2000 coordinates R5 denotes RA, DEC in the 1950 coordinates XA denotes X, Y in arcseconds XP denotes X, Y in pixels 37-44 F8.4 Period (days) 46-51 F6.3 Mean magnitude (or maximum magnitude if "max" is indicated in the remarks column) 53-57 F5.3 Light amplitude (range of variability) 59 A1 Colour for mean magnitude and amplitude e.g. B, V, R, I, J, K or P (for photographic). 61-65 A5 Type of variable (draft 2006 GCVS classifications) CST denotes non variable stars previously designated as variables 67-80 A19 Notes and Remarks (f denotes field star) "--" or "----" indicates no data available ========================================================================= ID Position Period ampl C Type Notes/ RA/X Dec/Y Units Remarks ========================================================================= No known variables. ================================================= Supplementary Notes A variable star search of Pal 15 was carried out by Kinman & Rosino (1962). In their paper, the cluster was referred to as "Anon". They searched 9 photographic plates which had a limiting magnitude of m_pg=22 mag. No variables were found. A CM diagram by Harris (1991) based on CFHT data shows a blue HB and a significant number of blue stragglers. This result was later confirmed by Dotter et al. (2011) who used HST data. ========================================================================= References Dotter, A., Sarajedini, A., Anderson, J. 2011, ApJ, 738, 74 Harris, W. E. 1991, AJ, 102, 1348 Kinman, T. D. & Rosino, L. 1962, PASP, 74, 499 ======================================================================