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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 926 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 BD+20 307 MGW 2456637.7355 2013-12-11 05:39 9.032 0.001 Johnson V CCD
2 HD 15407A MGW 2456637.7349 2013-12-11 05:38 6.969 0.001 Johnson V CCD
3 HD 15407A MGW 2456637.7345 2013-12-11 05:37 6.973 0.001 Johnson V CCD
4 HD 15407A MGW 2456637.7341 2013-12-11 05:37 6.968 0.001 Johnson V CCD
5 HD 15407A MGW 2456637.7337 2013-12-11 05:36 7.342 0.002 Johnson B CCD
6 HD 15407A MGW 2456637.7336 2013-12-11 05:36 7.343 0.002 Johnson B CCD
7 HD 15407A MGW 2456637.7332 2013-12-11 05:35 7.330 0.002 Johnson B CCD
8 HD 23514 MJB 2456637.6105 2013-12-11 02:39 9.432 0.008 Johnson V CCD
9 HD 23514 MJB 2456637.6100 2013-12-11 02:38 9.936 0.006 Johnson B CCD
10 HD 23514 MJB 2456637.6096 2013-12-11 02:37 9.426 0.008 Johnson V CCD
11 HD 23514 MGW 2456636.7401 2013-12-10 05:45 9.395 0.002 Johnson V CCD
12 HD 23514 MGW 2456636.7396 2013-12-10 05:44 9.399 0.002 Johnson V CCD
13 HD 23514 MGW 2456636.7393 2013-12-10 05:44 9.393 0.002 Johnson V CCD
14 HD 23514 MGW 2456636.7389 2013-12-10 05:44 9.888 0.002 Johnson B CCD
15 HD 23514 MGW 2456636.7386 2013-12-10 05:43 9.882 0.002 Johnson B CCD
16 HD 23514 MGW 2456636.7383 2013-12-10 05:43 9.887 0.002 Johnson B CCD
17 BD+20 307 MGW 2456636.7371 2013-12-10 05:41 9.021 0.001 Johnson V CCD
18 BD+20 307 MGW 2456636.7362 2013-12-10 05:40 9.014 0.001 Johnson V CCD
19 BD+20 307 MGW 2456636.7359 2013-12-10 05:39 9.021 0.001 Johnson V CCD
20 HD 15407A MGW 2456636.7351 2013-12-10 05:38 6.999 0.001 Johnson V CCD
21 HD 15407A MGW 2456636.7349 2013-12-10 05:38 6.984 0.001 Johnson V CCD
22 HD 15407A MGW 2456636.7348 2013-12-10 05:38 6.974 0.001 Johnson V CCD
23 HD 15407A MGW 2456636.7343 2013-12-10 05:37 7.384 0.002 Johnson B CCD
24 HD 15407A MGW 2456636.7342 2013-12-10 05:37 7.345 0.002 Johnson B CCD
25 HD 15407A MGW 2456636.7340 2013-12-10 05:37 7.340 0.002 Johnson B CCD