IC 1257 / C1724-070 (Updated March 2014) RA: 17:27:08.5 DEC: -07:05:35 (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 We assigned the "IAU nomenclature" name for this cluster on the basis of its 1950 position. IC 1257 has only been recognized as a Galactic globular cluster since Harris et al. (1997) published a CM diagram which reveals that it is a highly reddened cluster well beyond the Galactic centre. The diagram shows a well defined blue HB, but the observations do not extend faint enough to show the subgiant region or main sequence turnoff. ================================================================== References Harris, W. E., Phelps, R. L., Madore, B. F., Pevunova, O., Skiff, B. A., Crute, C., Wilson, B., Archinal, B. A. 1997, AJ, 113, 688 ====================================================================