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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 9318 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 GK Per DUBF 2459513.2583 2021-10-25 18:12 12.795 0.020 Johnson V CCD
2 GK Per DUBF 2459513.2569 2021-10-25 18:09 12.752 0.019 Johnson V CCD
3 GK Per RRIA 2459512.7263 2021-10-25 05:25 11.536 0.090 Cousins I CCD
4 GK Per RRIA 2459512.7245 2021-10-25 05:23 12.735 0.081 Johnson V CCD
5 GK Per RRIA 2459512.7245 2021-10-25 05:23 12.681 0.140 Johnson V CCD
6 GK Per RRIA 2459512.7234 2021-10-25 05:21 13.572 0.075 Johnson B CCD
7 GK Per RFDA 2459512.6081 2021-10-25 02:35 13.848 0.015 Johnson B CCD
8 GK Per RFDA 2459512.6072 2021-10-25 02:34 12.976 0.004 Johnson V CCD
9 GK Per RFDA 2459512.6062 2021-10-25 02:32 11.544 0.010 Cousins I CCD
10 GK Per RFDA 2459512.6054 2021-10-25 02:31 12.235 0.003 Cousins R CCD
11 GK Per RFDA 2459512.6046 2021-10-25 02:30 13.852 0.013 Johnson B CCD
12 GK Per RFDA 2459512.6036 2021-10-25 02:29 12.995 0.004 Johnson V CCD
13 GK Per RFDA 2459512.6027 2021-10-25 02:27 11.543 0.008 Cousins I CCD
14 GK Per RFDA 2459512.6019 2021-10-25 02:26 12.221 0.004 Cousins R CCD
15 GK Per RFDA 2459512.6011 2021-10-25 02:25 13.806 0.017 Johnson B CCD
16 GK Per RFDA 2459512.6001 2021-10-25 02:24 12.985 0.005 Johnson V CCD
17 GK Per PYG 2459512.5280 2021-10-25 00:40 12.9 N/A Visual Visual
18 GK Per PVG 2459512.4791 2021-10-24 23:29 12.78 0.07 CV CCD
19 GK Per OJR 2459512.4118 2021-10-24 21:53 13.0 N/A Visual Visual
20 GK Per BOZ 2459512.3597 2021-10-24 20:37 13.0 N/A Visual Visual
21 GK Per MUY 2459512.3424 2021-10-24 20:13 13.0 N/A Visual Visual
22 GK Per WKL 2459512.3333 2021-10-24 19:59 13.0 N/A Visual Visual
23 GK Per GGU 2459512.3313 2021-10-24 19:57 13.0 N/A Visual Visual
24 GK Per DUBF 2459512.3143 2021-10-24 19:32 12.856 0.019 Johnson V CCD
25 GK Per DUBF 2459512.3129 2021-10-24 19:30 12.852 0.020 Johnson V CCD