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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 ANNA 2460857.3338 2025-06-30 20:00 13.976 0.016 Johnson V CCD
2 AM Her ANNA 2460857.3333 2025-06-30 19:59 13.908 0.014 Johnson V CCD
3 AM Her ANNA 2460857.3328 2025-06-30 19:59 13.855 0.014 Johnson V CCD
4 AM Her ANNA 2460857.3323 2025-06-30 19:58 13.897 0.014 Johnson V CCD
5 AM Her ANNA 2460857.3317 2025-06-30 19:57 13.976 0.011 Johnson B CCD
6 AM Her ANNA 2460857.3311 2025-06-30 19:56 13.884 0.014 Johnson V CCD
7 AM Her ANNA 2460857.3307 2025-06-30 19:56 13.967 0.014 Johnson V CCD
8 AM Her ANNA 2460857.3302 2025-06-30 19:55 13.907 0.014 Johnson V CCD
9 AM Her ANNA 2460857.3297 2025-06-30 19:54 13.978 0.015 Johnson V CCD
10 AM Her ANNA 2460857.3292 2025-06-30 19:54 13.855 0.014 Johnson V CCD
11 AM Her ANNA 2460857.3288 2025-06-30 19:53 13.912 0.014 Johnson V CCD
12 AM Her MZK 2460856.5757 2025-06-30 01:49 12.370 0.031 Cousins I CCD
13 AM Her MZK 2460856.5754 2025-06-30 01:48 12.315 0.030 Cousins I CCD
14 AM Her MZK 2460856.5751 2025-06-30 01:48 12.383 0.031 Cousins I CCD
15 AM Her MZK 2460856.5746 2025-06-30 01:47 13.882 0.029 Johnson B CCD
16 AM Her MZK 2460856.5740 2025-06-30 01:46 13.834 0.028 Johnson B CCD
17 AM Her MZK 2460856.5735 2025-06-30 01:45 13.830 0.030 Johnson B CCD
18 AM Her MZK 2460856.5726 2025-06-30 01:44 13.798 0.034 Johnson V CCD
19 AM Her MZK 2460856.5723 2025-06-30 01:44 13.814 0.033 Johnson V CCD
20 AM Her MZK 2460856.5720 2025-06-30 01:43 13.863 0.036 Johnson V CCD
21 AM Her VTY 2460856.5458 2025-06-30 01:05 13.8 N/A Visual Visual
22 AM Her PYG 2460856.4785 2025-06-29 23:29 13.6 N/A Visual Visual
23 AM Her DUBF 2460856.3928 2025-06-29 21:25 12.339 0.017 Cousins I CCD
24 AM Her DUBF 2460856.3920 2025-06-29 21:24 13.112 0.014 Cousins R CCD
25 AM Her BOZ 2460856.3730 2025-06-29 20:57 13.8 N/A Visual Visual