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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 23108 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 ALF CAS SUS 2459416.5000 2021-07-21 00:00 2.4 N/A Visual Visual
2 GAM CAS SUS 2459416.5000 2021-07-21 00:00 2.1 N/A Visual Visual
3 DEL CAS SUS 2459416.5000 2021-07-21 00:00 2.6 N/A Visual Visual
4 EPS CAS SUS 2459416.5000 2021-07-21 00:00 3.2 N/A Visual Visual
5 RT BOO SUS 2459416.5000 2021-07-21 00:00 10.3 N/A Visual Visual
6 R CRB SUS 2459416.5000 2021-07-21 00:00 6.1 N/A Visual Visual
7 BX AND DFS 2459416.5000 2021-07-21 00:00 9.341 0.014 Johnson V CCD
8 OO AQL ATE 2459416.5000 2021-07-21 00:00 9.658 0.005 Johnson V CCD
9 RZ DRA ATE 2459416.5000 2021-07-21 00:00 10.385 0.007 Johnson V CCD
10 AV PEG DFS 2459416.5001 2021-07-21 00:00 10.190 0.004 Johnson V CCD
11 V627 PEG TRT 2459416.5002 2021-07-21 00:00 10.055 0.002 Johnson V CCD
12 OO AQL ATE 2459416.5002 2021-07-21 00:00 9.662 0.005 Johnson V CCD
13 RZ DRA ATE 2459416.5003 2021-07-21 00:00 10.380 0.007 Johnson V CCD
14 NSV 20416 HMB 2459416.5004 2021-07-21 00:00 11.753 0.011 Cousins R CCD
15 OO AQL ATE 2459416.5004 2021-07-21 00:00 9.663 0.005 Johnson V CCD
16 BX AND DFS 2459416.5004 2021-07-21 00:00 9.323 0.015 Johnson V CCD
17 N VUL 2021 PIV 2459416.5005 2021-07-21 00:00 12.5294 0.0068 Unfiltered with V Zeropoint CCD
18 RZ DRA ATE 2459416.5005 2021-07-21 00:00 10.377 0.007 Johnson V CCD
19 CSS_J232053.7+373851 DFS 2459416.5005 2021-07-21 00:00 14.295 0.045 Johnson V CCD
20 OO AQL ATE 2459416.5006 2021-07-21 00:00 9.666 0.005 Johnson V CCD
21 V627 PEG TRT 2459416.5006 2021-07-21 00:00 10.060 0.002 Johnson V CCD
22 V1674 HER VMT 2459416.5006 2021-07-21 00:00 14.388 0.007 Unfiltered with V Zeropoint CCD
23 RZ DRA ATE 2459416.5007 2021-07-21 00:01 10.372 0.007 Johnson V CCD
24 OO AQL ATE 2459416.5008 2021-07-21 00:01 9.659 0.005 Johnson V CCD
25 BX AND DFS 2459416.5008 2021-07-21 00:01 9.364 0.014 Johnson V CCD