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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 3830 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 AM Her KHAD 2460846.5215 2025-06-20 00:30 13.693 0.0590 Johnson V CCD
2 AM Her KHAD 2460846.5192 2025-06-20 00:27 13.033 0.0590 Cousins R CCD
3 AM Her KHAD 2460846.5167 2025-06-20 00:24 13.864 0.0590 Johnson B CCD
4 AM Her KHAD 2460846.5144 2025-06-20 00:20 13.822 0.0590 Johnson V CCD
5 AM Her KHAD 2460846.5120 2025-06-20 00:17 13.281 0.0590 Cousins R CCD
6 AM Her KHAD 2460846.5096 2025-06-20 00:13 13.976 0.0590 Johnson B CCD
7 AM Her KHAD 2460846.5072 2025-06-20 00:10 13.918 0.0590 Johnson V CCD
8 AM Her KHAD 2460846.5049 2025-06-20 00:07 13.408 0.0590 Cousins R CCD
9 AM Her KHAD 2460846.5025 2025-06-20 00:03 14.014 0.0590 Johnson B CCD
10 AM Her KHAD 2460846.5001 2025-06-20 00:00 13.954 0.0590 Johnson V CCD
11 AM Her KHAD 2460846.4978 2025-06-19 23:56 13.502 0.0590 Cousins R CCD
12 AM Her KHAD 2460846.4953 2025-06-19 23:53 14.079 0.0590 Johnson B CCD
13 AM Her KHAD 2460846.4930 2025-06-19 23:49 13.950 0.0590 Johnson V CCD
14 AM Her KHAD 2460846.4906 2025-06-19 23:46 13.576 0.0590 Cousins R CCD
15 AM Her KHAD 2460846.4882 2025-06-19 23:43 14.151 0.0590 Johnson B CCD
16 AM Her KHAD 2460846.4858 2025-06-19 23:39 14.157 0.0590 Johnson V CCD
17 AM Her KHAD 2460846.4835 2025-06-19 23:36 13.651 0.0590 Cousins R CCD
18 AM Her KHAD 2460846.4783 2025-06-19 23:28 14.057 0.0590 Johnson B CCD
19 AM Her KHAD 2460846.4760 2025-06-19 23:25 13.959 0.0590 Johnson V CCD
20 AM Her KHAD 2460846.4736 2025-06-19 23:21 13.438 0.0590 Cousins R CCD
21 AM Her KHAD 2460846.4712 2025-06-19 23:18 14.073 0.0590 Johnson B CCD
22 AM Her KHAD 2460846.4688 2025-06-19 23:15 13.857 0.0590 Johnson V CCD
23 AM Her KHAD 2460846.4665 2025-06-19 23:11 13.156 0.0590 Cousins R CCD
24 AM Her KHAD 2460846.4641 2025-06-19 23:08 13.877 0.0590 Johnson B CCD
25 AM Her KHAD 2460846.4617 2025-06-19 23:04 13.474 0.0590 Johnson V CCD