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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 RFDA 2459496.7703 2021-10-09 06:29 13.944 0.014 Johnson B CCD
2 GK Per RFDA 2459496.7693 2021-10-09 06:27 13.030 0.005 Johnson V CCD
3 GK Per RFDA 2459496.7684 2021-10-09 06:26 11.589 0.006 Cousins I CCD
4 GK Per RFDA 2459496.7676 2021-10-09 06:25 12.287 0.003 Cousins R CCD
5 GK Per RFDA 2459496.7668 2021-10-09 06:24 13.977 0.015 Johnson B CCD
6 GK Per RFDA 2459496.7658 2021-10-09 06:22 13.050 0.004 Johnson V CCD
7 GK Per RFDA 2459496.7649 2021-10-09 06:21 11.608 0.007 Cousins I CCD
8 GK Per RFDA 2459496.7641 2021-10-09 06:20 12.300 0.003 Cousins R CCD
9 GK Per RFDA 2459496.7633 2021-10-09 06:19 13.988 0.014 Johnson B CCD
10 GK Per RFDA 2459496.7623 2021-10-09 06:17 13.076 0.004 Johnson V CCD
11 GK Per CKB 2459496.7042 2021-10-09 04:54 13.1 N/A Visual Visual
12 GK Per DJED 2459496.6386 2021-10-09 03:19 11.738 0.029 Cousins I CCD
13 GK Per DJED 2459496.6378 2021-10-09 03:18 12.442 0.014 Cousins R CCD
14 GK Per DJED 2459496.6361 2021-10-09 03:15 14.190 0.087 Johnson B CCD
15 GK Per DJED 2459496.6351 2021-10-09 03:14 11.758 0.016 Cousins I CCD
16 GK Per DJED 2459496.6343 2021-10-09 03:13 12.432 0.011 Cousins R CCD
17 GK Per DJED 2459496.6325 2021-10-09 03:10 13.968 0.088 Johnson B CCD
18 GK Per DJED 2459496.6315 2021-10-09 03:09 11.713 0.020 Cousins I CCD
19 GK Per DJED 2459496.6307 2021-10-09 03:08 12.390 0.012 Cousins R CCD
20 GK Per DJED 2459496.6289 2021-10-09 03:05 14.107 0.080 Johnson B CCD
21 GK Per DJED 2459496.6279 2021-10-09 03:04 11.729 0.020 Cousins I CCD
22 GK Per DJED 2459496.6271 2021-10-09 03:03 12.429 0.018 Cousins R CCD
23 GK Per DJED 2459496.6253 2021-10-09 03:00 14.035 0.091 Johnson B CCD
24 GK Per DJED 2459496.6244 2021-10-09 02:59 11.716 0.015 Cousins I CCD
25 GK Per DJED 2459496.6235 2021-10-09 02:57 12.408 0.011 Cousins R CCD