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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 1631 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 R AQR DFS 2458883.3052 2020-02-03 19:19 12.424 0.021 Johnson V CCD
2 R AQR DFS 2458883.3057 2020-02-03 19:20 11.062 0.020 Cousins R CCD
3 R AQR DFS 2458884.3057 2020-02-04 19:20 12.336 0.027 Johnson V CCD
4 R AQR DFS 2458884.3062 2020-02-04 19:20 11.077 0.022 Cousins R CCD
5 R AQR DFS 2458885.3065 2020-02-05 19:21 12.277 0.041 Johnson V CCD
6 R AQR DFS 2458885.3070 2020-02-05 19:22 11.122 0.026 Cousins R CCD
7 R AQR DFS 2458890.3103 2020-02-10 19:26 11.160 0.050 Cousins R CCD
8 R AQR SFRA 2458968.4148 2020-04-28 21:57 11.578 0.063 Johnson V CCD
9 R_AQR SFRA 2458968.4165 2020-04-28 21:59 12.630 0.147 Johnson B CCD
10 R_AQR SFRA 2458969.4121 2020-04-29 21:53 11.593 0.061 Johnson V CCD
11 R_AQR SFRA 2458969.4146 2020-04-29 21:57 12.649 0.088 Johnson B CCD
12 R_AQR SFRA 2458971.4072 2020-05-01 21:46 11.483 0.031 Johnson V CCD
13 R_AQR SFRA 2458971.4096 2020-05-01 21:49 12.430 0.047 Johnson B CCD
14 R_AQR SFRA 2458978.3869 2020-05-08 21:17 11.381 0.105 Johnson V CCD
15 R_AQR SFRA 2458978.3894 2020-05-08 21:20 12.176 0.094 Johnson B CCD
16 R AQR CKB 2458976.9472 2020-05-07 10:43 11.9 N/A Visual Visual
17 R_AQR SFRA 2458980.3815 2020-05-10 21:09 11.299 0.050 Johnson V CCD
18 R_AQR SFRA 2458983.3732 2020-05-13 20:57 11.378 0.039 Johnson V CCD
19 R_AQR SFRA 2458983.3757 2020-05-13 21:01 12.232 0.067 Johnson B CCD
20 R AQR PEX 2458986.3764 2020-05-16 21:02 11.8 N/A Visual Visual
21 R_AQR SFRA 2458988.3594 2020-05-18 20:37 11.170 0.020 Johnson V CCD
22 R_AQR SFRA 2458988.3618 2020-05-18 20:41 12.229 0.035 Johnson B CCD
23 R AQR PEX 2458989.3847 2020-05-19 21:13 11.6 N/A Visual Visual
24 R_AQR SFRA 2458989.3571 2020-05-19 20:34 11.112 0.048 Johnson V CCD
25 R_AQR SFRA 2458989.3596 2020-05-19 20:37 12.074 0.087 Johnson B CCD