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The AAVSO International Database is a repository of variable star observations contributed by amateur and professional astronomers worldwide. Use the form below to search for observations of specific stars or by specific observers.

Enter list of star names, comma separated.
Enter a date in natural language, jd, or utc format.
Enter a date in natural language, jd, or utc format.
Separate multiple observers with commas.
Campaign overrides targets and dates.

Found 13216 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 RY TAU KSQ 2456238.9083 2012-11-07 09:47 10.264 0.004 Johnson V CCD
2 RY TAU KSQ 2456238.9090 2012-11-07 09:49 11.215 0.015 Johnson B CCD
3 RY TAU KSQ 2456238.9097 2012-11-07 09:49 9.576 0.028 Cousins R CCD
4 RY TAU HGUA 2456238.8594 2012-11-07 08:37 10.273 0.039 Johnson V CCD
5 RY TAU CMJA 2456239.6711 2012-11-08 04:06 11.401 0.014 Johnson B CCD
6 RY TAU CMJA 2456239.6748 2012-11-08 04:11 11.383 0.015 Johnson B CCD
7 RY TAU CMJA 2456239.6785 2012-11-08 04:17 11.385 0.014 Johnson B CCD
8 RY TAU CMJA 2456239.6822 2012-11-08 04:22 11.450 0.013 Johnson B CCD
9 RY TAU CMJA 2456239.6859 2012-11-08 04:27 11.390 0.013 Johnson B CCD
10 RY TAU CMJA 2456239.6905 2012-11-08 04:34 11.407 0.014 Johnson B CCD
11 RY TAU CMJA 2456239.6942 2012-11-08 04:39 11.431 0.013 Johnson B CCD
12 RY TAU CMJA 2456239.6979 2012-11-08 04:44 11.404 0.013 Johnson B CCD
13 RY TAU CMJA 2456239.7016 2012-11-08 04:50 11.427 0.013 Johnson B CCD
14 RY TAU CMJA 2456239.7054 2012-11-08 04:55 11.437 0.012 Johnson B CCD
15 RY TAU CMJA 2456239.7091 2012-11-08 05:01 11.395 0.013 Johnson B CCD
16 RY TAU CMJA 2456239.7128 2012-11-08 05:06 11.425 0.013 Johnson B CCD
17 RY TAU CMJA 2456239.7166 2012-11-08 05:11 11.420 0.013 Johnson B CCD
18 RY TAU CMJA 2456239.7203 2012-11-08 05:17 11.424 0.012 Johnson B CCD
19 RY TAU CMJA 2456239.7240 2012-11-08 05:22 11.438 0.012 Johnson B CCD
20 RY TAU CMJA 2456239.7278 2012-11-08 05:27 11.447 0.011 Johnson B CCD
21 RY TAU CMJA 2456239.7315 2012-11-08 05:33 11.409 0.011 Johnson B CCD
22 RY TAU CMJA 2456239.7353 2012-11-08 05:38 11.427 0.010 Johnson B CCD
23 RY TAU CMJA 2456239.7390 2012-11-08 05:44 11.446 0.010 Johnson B CCD
24 RY TAU CMJA 2456239.7428 2012-11-08 05:49 11.441 0.010 Johnson B CCD
25 RY TAU CMJA 2456239.7465 2012-11-08 05:54 11.427 0.018 Johnson B CCD