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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 PXR 2458355.5106 2018-08-25 00:15 12.276 0.007 Johnson V CCD
2 GK Per PXR 2458355.5098 2018-08-25 00:14 12.286 0.007 Johnson V CCD
3 GK Per PXR 2458355.5091 2018-08-25 00:13 12.293 0.007 Johnson V CCD
4 GK Per PXR 2458355.5084 2018-08-25 00:12 12.305 0.007 Johnson V CCD
5 GK Per PXR 2458355.5077 2018-08-25 00:11 12.275 0.007 Johnson V CCD
6 GK Per PXR 2458355.5069 2018-08-25 00:09 12.212 0.007 Johnson V CCD
7 GK Per PXR 2458355.5062 2018-08-25 00:08 12.207 0.007 Johnson V CCD
8 GK Per PXR 2458355.5055 2018-08-25 00:07 12.167 0.007 Johnson V CCD
9 GK Per PXR 2458355.5048 2018-08-25 00:06 12.217 0.007 Johnson V CCD
10 GK Per PXR 2458355.5041 2018-08-25 00:05 12.230 0.007 Johnson V CCD
11 GK Per NAO 2458355.4917 2018-08-24 23:48 12.45 N/A Visual Visual
12 GK Per MMAO 2458355.4523 2018-08-24 22:51 12.236 0.028 Johnson V CCD
13 GK Per KMA 2458354.8069 2018-08-24 07:21 11.8 N/A Visual Visual
14 GK Per MRV 2458354.7765 2018-08-24 06:38 11.586 0.027 Cousins R CCD
15 GK Per MRV 2458354.7721 2018-08-24 06:31 10.923 0.035 Cousins I CCD
16 GK Per MRV 2458354.7662 2018-08-24 06:23 12.828 0.080 Johnson B CCD
17 GK Per MRV 2458354.7599 2018-08-24 06:14 12.241 0.048 Johnson V CCD
18 GK Per HUR 2458354.6560 2018-08-24 03:44 12.2 N/A Johnson V CCD