NGC 5824 / C1500-328 (Updated December 2012) RA: 15:03:58.63 DEC: -33:04:05.6 (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 or P (for photographic). 61-65 A5 Type of variable (draft 2006 GCVS classifications) NV denotes not variable 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 ========================================================================= 1 15:03:52.73 -33:03:36.2 R0 0.597 17.55 1.5 P RR0 2 15:03:59.28 -33:02:14.4 R0 0.651 17.65 1.1 P RR0 3 15:04:08.37 -33:03:31.7 R0 0.641 17.65 1.1 P RR0 4 15:04:13.45 -33:02:48.9 R0 ---- 17.55 0.9 P RR1? 5 15:03:57.52 -33:02:20.5 R0 0.634 17.55 1.1 P RR0 6 15:04:06.69 -33:04:36.5 R0 ---- 17.65 0.9 P RR1 7 15:03:56.00 -33:05:17.2 R0 ---- 17.70 0.6 P RR 8 15:03:58.07 -33:05:17.1 R0 ---- 18.00 0.6 P RR 9 15:04:04.82 -33:02:53.1 R0 ---- 17.60 1.4 P RR0 10 15:04:11.22 -33:05:53.3 R0 ---- 17.65 0.7 P RR 11 15:03:57.85 -33:04:58.4 R0 ---- 17.40 1.0 P ? 12 15:03:52.9 -33:04:50 R0 0.592 17.60 1.2 P RR0 13 15:04:00.19 -33:05:49.2 R0 ---- 17.70 0.6 P RR 14 15:04:00.20 -33:03:16.8 R0 ---- 17.50 0.8 P RR1 15 15:04:05.26 -33:04:59.6 R0 ---- 17.75 1.1 P RR 16 15:04:00.38 -33:05:01.0 R0 ---- 17.90 0.8 P RR 17 15:04:01.55 -33:05:34.7 R0 ---- 17.75 0.9 P RR1 18 15:04:09.17 -33:04:07.5 R0 ---- 17.65 1.1 P RR 19 15:03:56.37 -33:04:49.5 R0 0.635 17.65 1.3 P RR0 20 15:03:52.36 -33:04:30.2 R0 ---- 17.80 0.6 P RR? 21 15:04:02.25 -33:02:54.9 R0 ---- 17.90 0.6 P RR 22 15:04:02.64 -33:04:19.5 R0 ---- 17.55 0.9 P RR0 23 15:03:49.43 -33:08:12.1 R0 0.618 17.55 1.1 P RR0 24 15:04:06.99 -33:09:07.2 R0 ---- 17.60 0.8 P RR1 25 15:03:32.35 -33:04:08.0 R0 ---- 17.70 0.8 P RR 26 15:04:29.6 -32:57:53 R0 0.744 17.55 1.1 P RR0 27 15:04:24.57 -33:04:20.1 R0 ---- 17.65 0.9 P RR =================================================================== Supplementary Notes The periods, magnitudes, amplitudes and classifications for V1-27 are from the study by Rosino (1961). However, Rosino noted that there is a constant zero-point error in the magnitudes that he derived. The RA and dec are from the paper by Samus et al. (2009). A BV colour magitude diagram by Brocato et al. (1996) shows a well defined blue HB. Saviane et al. (2010) showed evidence for an intrinsic internal abundance spread among giant branch stars in NGC 5824. =================================================================== Discovery of the variable stars in NGC 5824: V1-27 Rosino (1961) with ID charts and x,y, coordinates ================================================================== References Brocato, E., Buonanno, R., Malakhova, Y., Piersimon, A. M. 1996, A&A, 311, 778 Rosino, L. 1961, PASP, 73, 309 Samus, N. N., Kazarovets, E. V., Pastukhova, E. N., Tsvetkova, T. M., Durlevich, O. V. 2009, PASP, 121, 1378 Saviane, I., Da Costa, G. S., Held, E. V., Sommariva, V., Gullieuszik, M., Barbuy, B., Ortolani, S. 2012, A&A, 540, A27 =====================================================================