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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 759 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 GW Lib MGW 2457133.8918 2015-04-21 09:24 16.355 0.098 Cousins R CCD
2 GW Lib MGW 2457133.8901 2015-04-21 09:21 16.601 0.129 Johnson V CCD
3 GW Lib MGW 2457133.8878 2015-04-21 09:18 16.579 0.141 Johnson B CCD
4 GW Lib MGW 2457133.8804 2015-04-21 09:07 16.520 0.285 Cousins I CCD
5 GW Lib MGW 2457133.8782 2015-04-21 09:04 16.399 0.105 Cousins R CCD
6 GW Lib MGW 2457133.8766 2015-04-21 09:02 16.415 0.110 Johnson V CCD
7 GW Lib MGW 2457133.8742 2015-04-21 08:58 16.400 0.122 Johnson B CCD
8 GW Lib MGW 2457133.7998 2015-04-21 07:11 16.739 0.135 Johnson V CCD
9 GW Lib MGW 2457133.7935 2015-04-21 07:02 16.898 0.167 Johnson B CCD
10 GW Lib MGW 2457133.7859 2015-04-21 06:51 16.272 0.267 Cousins I CCD
11 GW Lib MGW 2457133.7835 2015-04-21 06:48 16.481 0.131 Cousins R CCD
12 GW Lib MGW 2457133.7816 2015-04-21 06:45 16.561 0.159 Johnson V CCD
13 GW Lib MGW 2457133.7796 2015-04-21 06:42 16.829 0.199 Johnson B CCD
14 GW Lib MGW 2457133.7770 2015-04-21 06:38 16.193 0.259 Cousins I CCD
15 GW Lib MGW 2457133.7749 2015-04-21 06:35 16.462 0.135 Cousins R CCD
16 GW Lib MGW 2457133.7732 2015-04-21 06:33 16.680 0.183 Johnson V CCD
17 GW Lib MGW 2457133.7712 2015-04-21 06:30 16.798 0.204 Johnson B CCD
18 GW Lib HMB 2457133.7670 2015-04-21 06:24 16.708 0.030 CV CCD
19 GW Lib HMB 2457133.7659 2015-04-21 06:22 16.637 0.030 CV CCD
20 GW Lib NLX 2457133.2901 2015-04-20 18:57 16.528 0.101 Johnson V CCD
21 GW Lib NLX 2457133.2883 2015-04-20 18:55 16.265 0.083 Johnson V CCD
22 GW Lib NLX 2457133.2865 2015-04-20 18:52 16.585 0.106 Johnson V CCD
23 GW Lib NLX 2457133.2848 2015-04-20 18:50 16.694 0.121 Johnson V CCD
24 GW Lib NLX 2457133.2828 2015-04-20 18:47 16.850 0.134 Johnson V CCD
25 GW Lib NLX 2457133.2811 2015-04-20 18:44 16.922 0.148 Johnson V CCD