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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 405046 records

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# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 RY Cep POX 2459345.5000 2021-05-11 00:00 11.6 N/A Visual Visual
2 R Leo BTY 2459345.5000 2021-05-11 00:00 10.5 N/A Visual Visual
3 S UMi BTY 2459345.5000 2021-05-11 00:00 11.8 N/A Visual Visual
4 R UMa BTY 2459345.5000 2021-05-11 00:00 12.5 N/A Visual Visual
5 Z UMa BTY 2459345.5000 2021-05-11 00:00 7.6 N/A Visual Visual
6 alf Her SHS 2459345.5000 2021-05-11 00:00 3.6 N/A Visual Visual
7 V0491 Lyr KAD 2459345.5000 2021-05-11 00:00 8.8 N/A Visual Visual
8 CG Dra SARR 2459345.5003 2021-05-11 00:00 16.698 0.042 Unfiltered with V Zeropoint CCD
9 AM CVn VMT 2459345.5007 2021-05-11 00:00 14.203 0.007 Unfiltered with V Zeropoint CCD
10 CG Dra SARR 2459345.5011 2021-05-11 00:01 16.731 0.043 Unfiltered with V Zeropoint CCD
11 AM CVn VMT 2459345.5015 2021-05-11 00:02 14.218 0.007 Unfiltered with V Zeropoint CCD
12 V1405 Cas SIV 2459345.5018 2021-05-11 00:02 5.232 0.002 Tri-Color Green DSLR
13 IS Cas SIV 2459345.5018 2021-05-11 00:02 11.628 0.0436 Tri-Color Green DSLR
14 CG Dra SARR 2459345.5018 2021-05-11 00:02 16.719 0.042 Unfiltered with V Zeropoint CCD
15 AM CVn VMT 2459345.5023 2021-05-11 00:03 14.247 0.007 Unfiltered with V Zeropoint CCD
16 CG Dra SARR 2459345.5025 2021-05-11 00:03 16.77 0.044 Unfiltered with V Zeropoint CCD
17 AM CVn VMT 2459345.5031 2021-05-11 00:04 14.198 0.007 Unfiltered with V Zeropoint CCD
18 CG Dra SARR 2459345.5033 2021-05-11 00:04 16.677 0.041 Unfiltered with V Zeropoint CCD
19 V0341 Car RFP 2459345.5035 2021-05-11 00:04 6.5 N/A Visual Visual
20 CG Dra SARR 2459345.5040 2021-05-11 00:05 16.736 0.044 Unfiltered with V Zeropoint CCD
21 AM CVn VMT 2459345.5041 2021-05-11 00:05 14.200 0.007 Unfiltered with V Zeropoint CCD
22 CG Dra SARR 2459345.5047 2021-05-11 00:06 16.699 0.041 Unfiltered with V Zeropoint CCD
23 AC Vul KTHA 2459345.5049 2021-05-11 00:07 14.404 0.038 Johnson V CCD
24 AM Vul KTHA 2459345.5049 2021-05-11 00:07 13.368 0.035 Johnson V CCD
25 BZ Vul KTHA 2459345.5049 2021-05-11 00:07 16.479 0.097 Johnson V CCD