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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 149 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 GW LIB MGW 2457973.9322 2017-08-08 10:22 16.367 0.047 Cousins I CCD
2 GW LIB MGW 2457973.9301 2017-08-08 10:19 16.464 0.029 Cousins R CCD
3 GW LIB MGW 2457973.9283 2017-08-08 10:16 16.549 0.038 Johnson V CCD
4 GW LIB MGW 2457973.9262 2017-08-08 10:13 16.701 0.040 Johnson B CCD
5 GW LIB FFAD 2457980.4535 2017-08-14 22:52 15.7 N/A Visual Visual
6 GW LIB CKB 2457978.6035 2017-08-13 02:28 12.8 N/A Visual Visual
7 GW LIB FFAD 2457984.4375 2017-08-18 22:30 16.2 N/A Visual Visual
8 GW LIB FFAD 2457987.4861 2017-08-21 23:39 15.1 N/A Visual Visual
9 GW LIB HMB 2457987.4781 2017-08-21 23:28 16.605 0.107 Johnson V CCD
10 GW LIB HMB 2457987.4792 2017-08-21 23:30 16.454 0.093 Johnson V CCD
11 GW LIB HMB 2457987.5354 2017-08-22 00:50 16.450 0.096 Johnson V CCD
12 GW LIB HMB 2457987.5365 2017-08-22 00:52 16.424 0.086 Johnson V CCD
13 GW LIB HMB 2457988.4786 2017-08-22 23:29 16.638 0.101 Johnson V CCD
14 GW LIB HMB 2457988.4797 2017-08-22 23:30 16.526 0.092 Johnson V CCD
15 GW LIB HMB 2457988.5327 2017-08-23 00:47 16.452 0.097 Johnson V CCD
16 GW LIB HMB 2457988.5337 2017-08-23 00:48 16.517 0.129 Johnson V CCD
17 GW LIB HMB 2457989.4785 2017-08-23 23:29 16.590 0.103 Johnson V CCD
18 GW LIB HMB 2457989.4796 2017-08-23 23:30 16.597 0.107 Johnson V CCD
19 GW LIB HMB 2457989.5298 2017-08-24 00:42 16.814 0.134 Johnson V CCD
20 GW LIB HMB 2457989.5309 2017-08-24 00:44 16.673 0.114 Johnson V CCD
21 GW LIB FFAD 2457990.4569 2017-08-24 22:57 15.1 N/A Visual Visual
22 GW LIB HMB 2457990.4791 2017-08-24 23:29 16.833 0.135 Johnson V CCD
23 GW LIB HMB 2457990.4802 2017-08-24 23:31 16.686 0.116 Johnson V CCD
24 GW LIB HMB 2457990.5277 2017-08-25 00:39 16.627 0.109 Johnson V CCD
25 GW LIB HMB 2457990.5288 2017-08-25 00:41 16.839 0.122 Johnson V CCD