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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 245 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 SN 1991T MRV 2448377.5924 1991-05-01 02:13 11.0 N/A Visual Visual
2 SN 1991T JOG 2448377.6000 1991-05-01 02:24 11.5 N/A Visual Visual
3 SN 1991T STI 2448377.6000 1991-05-01 02:24 11.3 N/A Visual Visual
4 SN 1991T RR 2448377.7000 1991-05-01 04:48 11.4 N/A Visual Visual
5 SN 1991T PEX 2448378.0208 1991-05-01 12:29 11.7 N/A Visual Visual
6 SN 1991T MZS 2448378.3000 1991-05-01 19:11 11.5 N/A Visual Visual
7 SN 1991T SPK 2448378.3900 1991-05-01 21:21 11.6 N/A Visual Visual
8 SN 1991T PYG 2448378.4166 1991-05-01 21:59 11.1 N/A Visual Visual
9 SN 1991T GRL 2448378.4400 1991-05-01 22:33 11.4 N/A Visual Visual
10 SN 1991T WBK 2448378.4458 1991-05-01 22:41 11.4 N/A Visual Visual
11 SN 1991T DAH 2448378.4500 1991-05-01 22:48 11.1 N/A Visual Visual
12 SN 1991T LBG 2448378.6368 1991-05-02 03:16 11.2 N/A Visual Visual
13 SN 1991T RR 2448378.7000 1991-05-02 04:48 11.3 N/A Visual Visual
14 SN 1991T HUR 2448379.3798 1991-05-02 21:06 11.3 N/A Visual Visual
15 SN 1991T TOO 2448379.4150 1991-05-02 21:57 11.2 N/A Visual Visual
16 SN 1991T TOO 2448379.4150 1991-05-02 21:57 11.4 N/A Visual Visual
17 SN 1991T MKE 2448379.5965 1991-05-03 02:18 11.1 N/A Visual Visual
18 SN 1991T STI 2448379.6000 1991-05-03 02:24 11.4 N/A Visual Visual
19 SN 1991T WEI 2448379.6000 1991-05-03 02:24 12.5 N/A Visual Visual
20 SN 1991T LBG 2448379.6007 1991-05-03 02:25 11.3 N/A Visual Visual
21 SN 1991T KSP 2448379.6556 1991-05-03 03:44 11.4 N/A Visual Visual
22 AD LEO LZT 2448379.6646 1991-05-03 03:57 0.0 N/A Visual Visual
23 SN 1991T KRB 2448379.6730 1991-05-03 04:09 11.5 N/A Visual Visual
24 SN 1991T RR 2448379.7000 1991-05-03 04:48 11.4 N/A Visual Visual
25 SN 1991T KSP 2448379.7847 1991-05-03 06:49 11.5 N/A Visual Visual