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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 1254 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 MR UMa ROE 2456359.8594 2013-03-08 08:37 13.662 0.032 Johnson V CCD
2 MR UMa LMJ 2456360.4965 2013-03-08 23:55 13.863 0.033 Johnson V CCD
3 MR UMa HBB 2456360.5302 2013-03-09 00:43 13.830 0.008 Johnson V CCD
4 MR UMa SLH 2456360.9243 2013-03-09 10:11 13.8 N/A Visual Visual
5 MR UMa CCY 2456360.7222 2013-03-09 05:19 13.8 N/A Visual Visual
6 MR UMa STI 2456361.5951 2013-03-10 02:17 15.4 N/A Visual Visual
7 MR UMa STI 2456361.5951 2013-03-10 02:17 14.9 N/A Visual Visual
8 MR UMa ROE 2456363.7018 2013-03-12 04:50 15.581 0.032 Johnson V CCD
9 MR UMa SBL 2456364.7627 2013-03-13 06:18 15.807 0.015 Johnson V CCD
10 MR UMa SBL 2456364.7654 2013-03-13 06:22 15.624 0.018 Johnson V CCD
11 MR UMa SBL 2456364.7683 2013-03-13 06:26 15.877 0.016 Johnson V CCD
12 MR UMa ROE 2456365.7018 2013-03-14 04:50 15.650 0.025 Johnson V CCD
13 MR UMa PYG 2456365.4800 2013-03-13 23:31 15.9 N/A Visual Visual
14 MR UMa KTU 2456360.4736 2013-03-08 23:21 13.821 N/A Johnson V CCD
15 MR UMa KTU 2456360.4742 2013-03-08 23:22 13.816 N/A Johnson V CCD
16 MR UMa KTU 2456360.4748 2013-03-08 23:23 13.815 N/A Johnson V CCD
17 MR UMa KTU 2456360.4754 2013-03-08 23:24 13.812 N/A Johnson V CCD
18 MR UMa KTU 2456360.4760 2013-03-08 23:25 13.824 N/A Johnson V CCD
19 MR UMa KTU 2456360.4766 2013-03-08 23:26 13.822 N/A Johnson V CCD
20 MR UMa KTU 2456360.4772 2013-03-08 23:27 13.808 N/A Johnson V CCD
21 MR UMa KTU 2456360.4778 2013-03-08 23:28 13.813 N/A Johnson V CCD
22 MR UMa KTU 2456360.4784 2013-03-08 23:28 13.808 N/A Johnson V CCD
23 MR UMa KTU 2456360.4790 2013-03-08 23:29 13.819 N/A Johnson V CCD
24 MR UMa KTU 2456360.4796 2013-03-08 23:30 13.823 N/A Johnson V CCD
25 MR UMa KTU 2456360.4802 2013-03-08 23:31 13.819 N/A Johnson V CCD