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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.
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Separate multiple observers with commas.
Campaign overrides targets and dates.

Found 198214 records

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# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 EF BOO SJTS 2458935.5000 2020-03-27 00:00 9.2473 0.0106 Johnson V CCD
2 V0694 MON HMB 2458935.5001 2020-03-27 00:00 8.670 0.007 Johnson V CCD
3 V0694 MON HMB 2458935.5002 2020-03-27 00:00 8.739 0.007 Johnson V CCD
4 EF BOO SJTS 2458935.5002 2020-03-27 00:00 9.2529 0.0106 Johnson V CCD
5 V467 DRA SDWA 2458935.5002 2020-03-27 00:00 11.280 0.004 Johnson V CCD
6 ASASSN-20DU MLF 2458935.5002 2020-03-27 00:00 14.656 0.12 Unfiltered with R Zeropoint CCD
7 GW UMA SJTS 2458935.5002 2020-03-27 00:00 9.7948 0.0197 Tri-Color Green DSLR
8 V0694 MON HMB 2458935.5003 2020-03-27 00:00 7.553 0.018 Cousins I CCD
9 EF BOO SJTS 2458935.5003 2020-03-27 00:00 9.2395 0.0106 Johnson V CCD
10 V0694 MON HMB 2458935.5004 2020-03-27 00:00 7.563 0.018 Cousins I CCD
11 EF BOO SJTS 2458935.5005 2020-03-27 00:00 9.2584 0.0105 Johnson V CCD
12 ASASSN-20DU MLF 2458935.5005 2020-03-27 00:00 14.674 0.12 Unfiltered with R Zeropoint CCD
13 SW SEX DFS 2458935.5005 2020-03-27 00:00 14.295 0.010 Unfiltered with V Zeropoint CCD
14 XZ VIR DPP 2458935.5005 2020-03-27 00:00 13.837 0.012 Johnson V CCD
15 HD 83037 BALB 2458935.5005 2020-03-27 00:00 9.294 0.003 Unfiltered with V Zeropoint CCD
16 V0694 MON HMB 2458935.5006 2020-03-27 00:00 8.929 0.006 Johnson B CCD
17 GW UMA SJTS 2458935.5006 2020-03-27 00:00 9.7856 0.0198 Tri-Color Green DSLR
18 HZ DRA SIV 2458935.5006 2020-03-27 00:00 8.1543 0.0021 Tri-Color Green DSLR
19 EF BOO SJTS 2458935.5006 2020-03-27 00:00 9.2439 0.0106 Johnson V CCD
20 NSV 4838 PXR 2458935.5007 2020-03-27 00:00 16.202 0.095 Unfiltered with V Zeropoint CCD
21 V0694 MON HMB 2458935.5008 2020-03-27 00:01 8.936 0.006 Johnson B CCD
22 EF BOO SJTS 2458935.5008 2020-03-27 00:01 9.2642 0.0104 Johnson V CCD
23 SW SEX VMT 2458935.5008 2020-03-27 00:01 14.336 0.006 Unfiltered with V Zeropoint CCD
24 ASASSN-20DU MLF 2458935.5009 2020-03-27 00:01 14.581 0.12 Unfiltered with R Zeropoint CCD
25 EF BOO SJTS 2458935.5009 2020-03-27 00:01 9.2665 0.0105 Johnson V CCD