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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 7786 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 V1239 Her DFS 2459848.3307 2022-09-25 19:56 16.284 0.066 Johnson V CCD
2 UU Aql SRX 2459848.0083 2022-09-25 12:11 <15.0 N/A Visual Visual
3 RY Ser SRX 2459847.9313 2022-09-25 10:21 <15.6 N/A Visual Visual
4 CH UMa DFS 2459847.6420 2022-09-25 03:24 15.292 0.046 Johnson V CCD
5 UU Aql DFS 2459847.4611 2022-09-24 23:04 16.403 0.100 Johnson V CCD
6 RY Ser DFS 2459847.3709 2022-09-24 20:54 15.957 0.127 Johnson V CCD
7 SDSS J190817.07+394036.4 DFS 2459847.3691 2022-09-24 20:51 15.877 0.064 Johnson V CCD
8 V1239 Her DFS 2459847.3175 2022-09-24 19:37 17.902 0.279 Johnson V CCD
9 CH UMa DFS 2459846.6417 2022-09-24 03:24 15.015 0.034 Johnson V CCD
10 V1239 Her BTY 2459846.5319 2022-09-24 00:45 <14.6 N/A Visual Visual
11 UU Aql DFS 2459846.4637 2022-09-23 23:07 16.753 0.119 Johnson V CCD
12 UU Aql CCT 2459846.4454 2022-09-23 22:41 16.652 0.01 Johnson V CCD
13 RY Ser DFS 2459846.3742 2022-09-23 20:58 15.935 0.395 Johnson V CCD
14 SDSS J190817.07+394036.4 DFS 2459846.3723 2022-09-23 20:56 16.163 0.161 Johnson V CCD
15 V1239 Her DFS 2459846.3187 2022-09-23 19:38 17.565 0.293 Johnson V CCD
16 CH UMa DFS 2459845.6415 2022-09-23 03:23 15.333 0.060 Johnson V CCD
17 UU Aql DFS 2459845.4666 2022-09-22 23:11 16.860 0.130 Johnson V CCD
18 RY Ser DFS 2459845.3763 2022-09-22 21:01 15.706 0.128 Johnson V CCD
19 SDSS J190817.07+394036.4 DFS 2459845.3744 2022-09-22 20:59 15.964 0.070 Johnson V CCD
20 UU Aql GZN 2459845.3500 2022-09-22 20:24 <13.5 N/A Visual Visual
21 V1239 Her DFS 2459845.3196 2022-09-22 19:40 14.868 0.029 Johnson V CCD
22 ASASSN-14cn PDM 2459845.3030 2022-09-22 19:16 18.7044 0.1455 Johnson V CCD
23 CH UMa DFS 2459844.6415 2022-09-22 03:23 14.987 0.048 Johnson V CCD
24 UU Aql DFS 2459844.4695 2022-09-21 23:16 16.619 0.107 Johnson V CCD
25 RY Ser DFS 2459844.3792 2022-09-21 21:06 15.815 0.124 Johnson V CCD