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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 2460634.3901 2024-11-19 21:21 12.139 0.011 Johnson V CCD
2 HAT-P-23 DFS 2460634.3899 2024-11-19 21:21 12.123 0.012 Johnson V CCD
3 HAT-P-23 DFS 2460634.3897 2024-11-19 21:21 12.128 0.012 Johnson V CCD
4 HAT-P-23 DFS 2460634.3896 2024-11-19 21:20 12.136 0.012 Johnson V CCD
5 HAT-P-23 DFS 2460634.3894 2024-11-19 21:20 12.136 0.012 Johnson V CCD
6 HAT-P-23 DFS 2460634.3893 2024-11-19 21:20 12.137 0.011 Johnson V CCD
7 HAT-P-23 DFS 2460634.3891 2024-11-19 21:20 12.135 0.012 Johnson V CCD
8 HAT-P-23 DFS 2460634.3889 2024-11-19 21:20 12.157 0.011 Johnson V CCD
9 HAT-P-23 DFS 2460634.3888 2024-11-19 21:19 12.151 0.012 Johnson V CCD
10 HAT-P-23 DFS 2460634.3886 2024-11-19 21:19 12.136 0.012 Johnson V CCD
11 HAT-P-23 DFS 2460634.3885 2024-11-19 21:19 12.139 0.011 Johnson V CCD
12 HAT-P-23 DFS 2460634.3883 2024-11-19 21:19 12.138 0.012 Johnson V CCD
13 HAT-P-23 DFS 2460634.3881 2024-11-19 21:18 12.141 0.012 Johnson V CCD
14 HAT-P-23 DFS 2460634.3880 2024-11-19 21:18 12.114 0.012 Johnson V CCD
15 HAT-P-23 DFS 2460634.3878 2024-11-19 21:18 12.124 0.012 Johnson V CCD
16 HAT-P-23 DFS 2460634.3876 2024-11-19 21:18 12.152 0.012 Johnson V CCD
17 HAT-P-23 DFS 2460634.3875 2024-11-19 21:17 12.132 0.012 Johnson V CCD
18 HAT-P-23 DFS 2460634.3873 2024-11-19 21:17 12.156 0.012 Johnson V CCD
19 HAT-P-23 DFS 2460634.3872 2024-11-19 21:17 12.142 0.012 Johnson V CCD
20 HAT-P-23 DFS 2460634.3870 2024-11-19 21:17 12.143 0.011 Johnson V CCD
21 HAT-P-23 DFS 2460634.3868 2024-11-19 21:17 12.129 0.011 Johnson V CCD
22 HAT-P-23 DFS 2460634.3867 2024-11-19 21:16 12.140 0.012 Johnson V CCD
23 HAT-P-23 DFS 2460634.3865 2024-11-19 21:16 12.177 0.011 Johnson V CCD
24 HAT-P-23 DFS 2460634.3864 2024-11-19 21:16 12.160 0.011 Johnson V CCD
25 HAT-P-23 DFS 2460634.3862 2024-11-19 21:16 12.162 0.012 Johnson V CCD