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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 5257 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 RU Lup RFP 2459321.6007 2021-04-17 02:24 10.6 N/A Visual Visual
2 RU LUP HMB 2459330.6815 2021-04-26 04:21 11.590 0.008 Johnson B CCD
3 RU LUP HMB 2459330.6819 2021-04-26 04:21 11.577 0.008 Johnson B CCD
4 RU LUP HMB 2459330.6822 2021-04-26 04:22 10.416 0.005 Cousins R CCD
5 RU LUP HMB 2459330.6824 2021-04-26 04:22 10.426 0.005 Cousins R CCD
6 RU LUP HMB 2459330.6827 2021-04-26 04:23 9.689 0.011 Cousins I CCD
7 RU LUP HMB 2459330.6828 2021-04-26 04:23 9.688 0.010 Cousins I CCD
8 RU LUP HMB 2459330.6831 2021-04-26 04:23 11.061 0.007 Johnson V CCD
9 RU LUP HMB 2459330.6833 2021-04-26 04:23 11.055 0.006 Johnson V CCD
10 RU LUP HMB 2459331.6828 2021-04-27 04:23 11.519 0.011 Johnson B CCD
11 RU LUP HMB 2459331.6831 2021-04-27 04:23 11.521 0.011 Johnson B CCD
12 RU LUP HMB 2459331.6833 2021-04-27 04:23 10.418 0.007 Cousins R CCD
13 RU LUP HMB 2459331.6835 2021-04-27 04:24 10.435 0.007 Cousins R CCD
14 RU LUP HMB 2459331.6837 2021-04-27 04:24 9.670 0.011 Cousins I CCD
15 RU LUP HMB 2459331.6838 2021-04-27 04:24 9.666 0.011 Cousins I CCD
16 RU LUP HMB 2459331.6840 2021-04-27 04:25 11.028 0.009 Johnson V CCD
17 RU LUP HMB 2459331.6842 2021-04-27 04:25 11.039 0.009 Johnson V CCD
18 RU LUP HMB 2459332.6801 2021-04-28 04:19 11.036 0.042 Johnson B CCD
19 RU LUP HMB 2459332.6803 2021-04-28 04:19 11.026 0.036 Johnson B CCD
20 RU LUP HMB 2459332.6806 2021-04-28 04:20 9.997 0.019 Cousins R CCD
21 RU LUP HMB 2459332.6807 2021-04-28 04:20 10.420 0.020 Cousins R CCD
22 RU LUP HMB 2459332.6810 2021-04-28 04:20 9.854 0.060 Cousins I CCD
23 RU LUP HMB 2459332.6813 2021-04-28 04:21 11.137 0.044 Johnson V CCD
24 RU LUP HMB 2459332.6815 2021-04-28 04:21 10.778 0.063 Johnson V CCD
25 RU LUP HMB 2459333.6773 2021-04-29 04:15 11.283 0.010 Johnson B CCD