Eridanus / C0422-213 (Updated June 2011) RA: 04:24:44.5 DEC: -21:11:13 (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 Ortolani & Gratton (1986) published a BV color-magnitude diagram that showed an extremely red HB. A VI color-magnitude diagram by Stetson et al. (1999) confirmed this and also showed about a dozen blue stragglers. ===================================================== References Ortolani, S. & Gratton, R. G. 986, A&A, 160, 25 Stetson, P., Bolte, M., Harris, W. E., Hesser, J., van den Bergh, S., Vandenberg, D. A., Bell, R. A. et al. 1999, AJ, 117, 247 ========================================================