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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 759 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 GW Lib HMB 2457139.7505 2015-04-27 06:00 16.603 0.025 CV CCD
2 GW Lib HMB 2457139.7495 2015-04-27 05:59 16.663 0.026 CV CCD
3 GW Lib SRX 2457138.9861 2015-04-26 11:39 <13.3 N/A Visual Visual
4 GW Lib MTH 2457138.9792 2015-04-26 11:30 <12.8 N/A Visual Visual
5 GW Lib AJN 2457138.8386 2015-04-26 08:07 <15.1 N/A Visual Visual
6 GW Lib HMB 2457138.7533 2015-04-26 06:04 16.712 0.030 CV CCD
7 GW Lib HMB 2457138.7522 2015-04-26 06:03 16.764 0.034 CV CCD
8 GW Lib HKEB 2457137.9830 2015-04-25 11:35 16.346 0.119 Johnson V CCD
9 GW Lib MTH 2457137.9722 2015-04-25 11:19 <12.0 N/A Visual Visual
10 GW Lib HMB 2457137.7560 2015-04-25 06:08 16.760 0.030 CV CCD
11 GW Lib HMB 2457137.7549 2015-04-25 06:07 16.743 0.033 CV CCD
12 GW Lib DKS 2457137.7512 2015-04-25 06:01 <16.8 0.3 Johnson V CCD
13 GW Lib PRV 2457137.2884 2015-04-24 18:55 16.518 0.058 Johnson V CCD
14 GW Lib HKEB 2457136.9854 2015-04-24 11:38 16.950 0.070 Johnson V CCD
15 GW Lib MTH 2457136.9764 2015-04-24 11:26 <12.3 N/A Visual Visual
16 GW Lib HMB 2457136.7588 2015-04-24 06:12 16.614 0.028 CV CCD
17 GW Lib HMB 2457136.7577 2015-04-24 06:11 16.570 0.031 CV CCD
18 GW Lib PEX 2457136.2667 2015-04-23 18:24 <15.7 N/A Visual Visual
19 GW Lib HMB 2457135.7616 2015-04-23 06:16 16.654 0.026 CV CCD
20 GW Lib HMB 2457135.7605 2015-04-23 06:15 16.763 0.029 CV CCD
21 GW Lib PTQ 2457135.7396 2015-04-23 05:44 <13.8 N/A Visual Visual
22 GW Lib PEX 2457135.2674 2015-04-22 18:25 <15.1 N/A Visual Visual
23 GW Lib SPET 2457135.2325 2015-04-22 17:34 16.1778 0.0611 Johnson V CCD
24 GW Lib SPET 2457135.2308 2015-04-22 17:32 16.3386 0.0419 Johnson V CCD
25 GW Lib SPET 2457135.2291 2015-04-22 17:29 16.2714 0.0364 Johnson V CCD