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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 3523 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 HAT-P-23 DFS 2460634.3618 2024-11-19 20:40 12.132 0.010 Johnson V CCD
2 HAT-P-23 DFS 2460634.3616 2024-11-19 20:40 12.133 0.010 Johnson V CCD
3 HAT-P-23 RTH 2460634.3615 2024-11-19 20:40 12.210 0.017 Johnson V CCD
4 HAT-P-23 DFS 2460634.3614 2024-11-19 20:40 12.139 0.009 Johnson V CCD
5 HAT-P-23 DFS 2460634.3613 2024-11-19 20:40 12.143 0.010 Johnson V CCD
6 HAT-P-23 RTH 2460634.3610 2024-11-19 20:39 12.215 0.026 Johnson V CCD
7 HAT-P-23 RTH 2460634.3606 2024-11-19 20:39 12.196 0.014 Johnson V CCD
8 HAT-P-23 RTH 2460634.3602 2024-11-19 20:38 12.193 0.015 Johnson V CCD
9 HAT-P-23 CCHD 2460633.6727 2024-11-19 04:08 11.744 0.014 Cousins R CCD
10 HAT-P-23 CCHD 2460633.6717 2024-11-19 04:07 12.198 0.013 Johnson V CCD
11 HAT-P-23 CCHD 2460633.6706 2024-11-19 04:05 11.752 0.014 Cousins R CCD
12 HAT-P-23 CCHD 2460633.6695 2024-11-19 04:04 12.199 0.016 Johnson V CCD
13 HAT-P-23 CCHD 2460633.6684 2024-11-19 04:02 11.735 0.016 Cousins R CCD
14 HAT-P-23 CCHD 2460633.6674 2024-11-19 04:00 12.187 0.013 Johnson V CCD
15 HAT-P-23 CCHD 2460633.6662 2024-11-19 03:59 11.747 0.014 Cousins R CCD
16 HAT-P-23 CCHD 2460633.6652 2024-11-19 03:57 12.194 0.013 Johnson V CCD
17 HAT-P-23 CCHD 2460633.6641 2024-11-19 03:56 11.735 0.013 Cousins R CCD
18 HAT-P-23 CCHD 2460633.6631 2024-11-19 03:54 12.184 0.013 Johnson V CCD
19 HAT-P-23 CCHD 2460633.6618 2024-11-19 03:52 11.749 0.013 Cousins R CCD
20 HAT-P-23 CCHD 2460633.6606 2024-11-19 03:51 12.182 0.012 Johnson V CCD
21 HAT-P-23 CCHD 2460633.6593 2024-11-19 03:49 11.737 0.013 Cousins R CCD
22 HAT-P-23 CCHD 2460633.6581 2024-11-19 03:47 12.188 0.012 Johnson V CCD
23 HAT-P-23 CCHD 2460633.6568 2024-11-19 03:45 11.738 0.013 Cousins R CCD
24 HAT-P-23 CCHD 2460633.6557 2024-11-19 03:44 12.183 0.013 Johnson V CCD
25 HAT-P-23 CCHD 2460633.6544 2024-11-19 03:42 11.740 0.013 Cousins R CCD