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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 CMJA 2456559.6880 2013-09-24 04:30 9.133 0.005 Johnson V CCD
2 BD+20 307 CMJA 2456560.6818 2013-09-25 04:21 9.083 0.008 Johnson V CCD
3 BD+20 307 CMJA 2456561.6843 2013-09-26 04:25 9.146 0.007 Johnson V CCD
4 BD+20 307 CMJA 2456561.8862 2013-09-26 09:16 9.098 0.007 Johnson V CCD
5 BD+20 307 CMJA 2456563.7009 2013-09-28 04:49 9.125 0.006 Johnson V CCD
6 BD+20 307 MGW 2456539.8162 2013-09-04 07:35 9.011 0.002 Johnson V CCD
7 BD+20 307 MGW 2456540.9198 2013-09-05 10:04 9.017 0.002 Johnson V CCD
8 BD+20 307 MGW 2456540.9207 2013-09-05 10:05 9.013 0.002 Johnson V CCD
9 BD+20 307 MGW 2456540.9217 2013-09-05 10:07 9.011 0.002 Johnson V CCD
10 BD+20 307 MGW 2456541.9200 2013-09-06 10:04 9.033 0.002 Johnson V CCD
11 BD+20 307 MGW 2456541.9210 2013-09-06 10:06 9.031 0.002 Johnson V CCD
12 BD+20 307 MGW 2456541.9219 2013-09-06 10:07 9.024 0.002 Johnson V CCD
13 BD+20 307 MGW 2456559.8783 2013-09-24 09:04 9.011 0.002 Johnson V CCD
14 BD+20 307 MGW 2456559.8794 2013-09-24 09:06 9.012 0.002 Johnson V CCD
15 BD+20 307 MGW 2456559.8803 2013-09-24 09:07 9.004 0.002 Johnson V CCD
16 BD+20 307 MGW 2456560.8779 2013-09-25 09:04 8.998 0.002 Johnson V CCD
17 BD+20 307 MGW 2456560.8789 2013-09-25 09:05 8.994 0.002 Johnson V CCD
18 BD+20 307 MGW 2456560.8798 2013-09-25 09:06 9.006 0.002 Johnson V CCD
19 BD+20 307 MGW 2456561.8787 2013-09-26 09:05 9.006 0.002 Johnson V CCD
20 BD+20 307 MGW 2456561.8796 2013-09-26 09:06 9.004 0.002 Johnson V CCD
21 BD+20 307 MGW 2456561.8806 2013-09-26 09:08 9.019 0.002 Johnson V CCD
22 BD+20 307 MGW 2456563.8788 2013-09-28 09:05 9.003 0.002 Johnson V CCD
23 BD+20 307 MGW 2456563.8797 2013-09-28 09:06 9.017 0.002 Johnson V CCD
24 BD+20 307 MGW 2456563.8807 2013-09-28 09:08 9.012 0.002 Johnson V CCD
25 BD+20 307 MGW 2456564.8780 2013-09-29 09:04 9.008 0.002 Johnson V CCD