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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 1838 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 BP Tau DKS 2459946.6266 2023-01-02 03:02 12.025 0.007 Johnson V CCD
2 BP Tau HMB 2459946.5941 2023-01-02 02:15 10.238 0.007 Cousins I CCD
3 BP Tau HMB 2459946.5938 2023-01-02 02:15 10.243 0.007 Cousins I CCD
4 BP Tau HMB 2459946.5934 2023-01-02 02:14 12.032 0.008 Johnson V CCD
5 BP Tau HMB 2459946.5931 2023-01-02 02:14 12.008 0.007 Johnson V CCD
6 BP Tau HMB 2459946.5926 2023-01-02 02:13 12.989 0.013 Johnson B CCD
7 BP Tau HMB 2459946.5920 2023-01-02 02:12 13.004 0.014 Johnson B CCD
8 BP Tau PEX 2459946.0571 2023-01-01 13:22 10.179 0.014 Cousins I CCD
9 BP Tau PEX 2459946.0565 2023-01-01 13:21 11.057 0.007 Cousins R CCD
10 BP Tau PEX 2459946.0558 2023-01-01 13:20 11.864 0.010 Johnson V CCD
11 BP Tau PEX 2459946.0541 2023-01-01 13:17 12.780 0.026 Johnson B CCD
12 BP Tau PEX 2459946.0524 2023-01-01 13:15 10.171 0.011 Cousins I CCD
13 BP Tau PEX 2459946.0518 2023-01-01 13:14 11.025 0.007 Cousins R CCD
14 BP Tau PEX 2459946.0510 2023-01-01 13:13 11.874 0.009 Johnson V CCD
15 BP Tau PEX 2459946.0496 2023-01-01 13:11 12.782 0.028 Johnson B CCD
16 BP Tau PEX 2459946.0483 2023-01-01 13:09 10.158 0.012 Cousins I CCD
17 BP Tau PEX 2459946.0476 2023-01-01 13:08 11.049 0.007 Cousins R CCD
18 BP Tau PEX 2459946.0469 2023-01-01 13:07 11.741 0.012 Johnson V CCD
19 BP Tau PEX 2459946.0460 2023-01-01 13:06 12.723 0.031 Johnson B CCD
20 BP Tau PKT 2459944.6743 2022-12-31 04:11 12.058 0.046 TG DSLR
21 BP Tau MJZ 2459944.3124 2022-12-30 19:29 12.3 N/A Visual Visual
22 BP Tau BPEC 2459943.6001 2022-12-30 02:24 10.440 0.022 Cousins I CCD
23 BP Tau BPEC 2459943.5977 2022-12-30 02:20 11.229 0.017 Cousins R CCD
24 BP Tau BPEC 2459943.5951 2022-12-30 02:17 12.203 0.009 Johnson V CCD
25 BP Tau BPEC 2459943.5913 2022-12-30 02:11 13.095 0.010 Johnson B CCD