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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 COO 2457101.2488 2015-03-19 17:58 16.579 0.029 Unfiltered with V Zeropoint CCD
2 GW LIB COO 2457101.2517 2015-03-19 18:02 16.642 0.071 Johnson V CCD
3 GW LIB COO 2457101.2546 2015-03-19 18:06 16.145 0.164 Cousins I CCD
4 GW LIB MGW 2457101.2957 2015-03-19 19:05 16.433 0.086 Cousins I CCD
5 GW LIB MGW 2457101.2940 2015-03-19 19:03 16.506 0.055 Cousins R CCD
6 GW LIB MGW 2457101.2923 2015-03-19 19:00 16.639 0.028 Johnson V CCD
7 GW LIB MGW 2457101.2901 2015-03-19 18:57 16.687 0.030 Johnson B CCD
8 GW LIB MGW 2457103.0979 2015-03-21 14:21 16.386 0.082 Cousins I CCD
9 GW LIB MGW 2457103.0941 2015-03-21 14:15 16.522 0.036 Johnson V CCD
10 GW LIB MGW 2457103.0920 2015-03-21 14:12 16.753 0.033 Johnson B CCD
11 GW LIB HMH 2457103.2052 2015-03-21 16:55 16.556 0.069 Johnson V CCD
12 GW LIB HMH 2457103.2081 2015-03-21 16:59 16.497 0.046 Cousins I CCD
13 GW LIB MGW 2457104.1809 2015-03-22 16:20 16.427 0.076 Cousins I CCD
14 GW LIB MGW 2457104.1384 2015-03-22 15:19 16.387 0.079 Cousins I CCD
15 GW LIB MGW 2457104.1789 2015-03-22 16:17 16.623 0.053 Cousins R CCD
16 GW LIB MGW 2457103.0959 2015-03-21 14:18 16.466 0.057 Cousins R CCD
17 GW LIB MGW 2457104.1772 2015-03-22 16:15 16.692 0.031 Johnson V CCD
18 GW LIB MGW 2457103.0941 2015-03-21 14:15 16.549 0.034 Johnson V CCD
19 GW LIB MGW 2457104.1751 2015-03-22 16:12 16.836 0.030 Johnson B CCD
20 GW LIB MGW 2457104.1325 2015-03-22 15:10 16.767 0.029 Johnson B CCD
21 GW LIB COO 2457104.2602 2015-03-22 18:14 16.786 0.087 Johnson V CCD
22 GW LIB SPET 2457101.2825 2015-03-19 18:46 16.5036 0.0909 Johnson V CCD
23 GW LIB SPET 2457102.0903 2015-03-20 14:10 16.6015 0.0506 Johnson V CCD
24 GW LIB HMB 2457104.8278 2015-03-23 07:52 16.824 0.037 Unfiltered with V Zeropoint CCD
25 GW LIB HMB 2457104.8289 2015-03-23 07:53 16.865 0.039 Unfiltered with V Zeropoint CCD