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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 20703 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 GK Per WUB 2459965.4070 2023-01-20 21:46 10.6 N/A Visual Visual
2 GK Per BDG 2459965.4054 2023-01-20 21:43 10.819 0.029 Johnson V CCD
3 GK Per BDG 2459965.4052 2023-01-20 21:43 11.282 0.020 Johnson B CCD
4 GK Per BDG 2459965.4049 2023-01-20 21:43 10.896 0.024 Johnson V CCD
5 GK Per BDG 2459965.4047 2023-01-20 21:42 11.402 0.021 Johnson B CCD
6 GK Per BDG 2459965.4045 2023-01-20 21:42 10.915 0.015 Johnson V CCD
7 GK Per BDG 2459965.4043 2023-01-20 21:42 11.378 0.017 Johnson B CCD
8 GK Per BDG 2459965.4041 2023-01-20 21:41 10.937 0.009 Johnson V CCD
9 GK Per BDG 2459965.4039 2023-01-20 21:41 11.358 0.015 Johnson B CCD
10 GK Per BDG 2459965.4037 2023-01-20 21:41 10.927 0.012 Johnson V CCD
11 GK Per BDG 2459965.4034 2023-01-20 21:40 11.437 0.015 Johnson B CCD
12 GK Per BDG 2459965.4032 2023-01-20 21:40 10.943 0.017 Johnson V CCD
13 GK Per BDG 2459965.4030 2023-01-20 21:40 11.371 0.020 Johnson B CCD
14 GK Per BDG 2459965.4028 2023-01-20 21:40 10.948 0.014 Johnson V CCD
15 GK Per BDG 2459965.4025 2023-01-20 21:39 11.422 0.015 Johnson B CCD
16 GK Per BDG 2459965.4023 2023-01-20 21:39 10.972 0.016 Johnson V CCD
17 GK Per BDG 2459965.4021 2023-01-20 21:39 11.461 0.015 Johnson B CCD
18 GK Per BDG 2459965.4019 2023-01-20 21:38 11.037 0.010 Johnson V CCD
19 GK Per BDG 2459965.4017 2023-01-20 21:38 11.491 0.015 Johnson B CCD
20 GK Per BDG 2459965.4015 2023-01-20 21:38 11.001 0.016 Johnson V CCD
21 GK Per BDG 2459965.4013 2023-01-20 21:37 11.457 0.016 Johnson B CCD
22 GK Per BDG 2459965.4010 2023-01-20 21:37 10.972 0.014 Johnson V CCD
23 GK Per BDG 2459965.4008 2023-01-20 21:37 11.414 0.014 Johnson B CCD
24 GK Per BDG 2459965.4006 2023-01-20 21:36 10.958 0.011 Johnson V CCD
25 GK Per BDG 2459965.4004 2023-01-20 21:36 11.412 0.019 Johnson B CCD