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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 13216 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 RY Tau PXR 2456619.4211 2013-11-22 22:06 10.392 0.069 Johnson V CCD
2 RY Tau PXR 2456619.4207 2013-11-22 22:05 10.345 0.069 Johnson V CCD
3 RY Tau MCPA 2456617.7083 2013-11-21 04:59 10.6 N/A Visual Visual
4 DR Tau MJB 2456617.6365 2013-11-21 03:16 12.314 0.015 Johnson V CCD
5 DN Tau MJB 2456617.6177 2013-11-21 02:49 12.285 0.010 Johnson V CCD
6 RY Tau MCPA 2456615.7264 2013-11-19 05:26 10.5 N/A Visual Visual
7 RY Tau BDG 2456611.4662 2013-11-14 23:11 10.420 0.010 Johnson V CCD
8 DR Tau MJB 2456610.6654 2013-11-14 03:58 11.926 0.015 Johnson V CCD
9 DN Tau MJB 2456610.6040 2013-11-14 02:29 12.169 0.008 Johnson V CCD
10 RY Tau MJB 2456610.5886 2013-11-14 02:07 10.374 0.009 Johnson V CCD
11 RY Tau RZD 2456610.4512 2013-11-13 22:49 9.068 0.020 Cousins I CCD
12 RY Tau RZD 2456610.4497 2013-11-13 22:47 9.735 0.019 Cousins R CCD
13 RY Tau RZD 2456610.4480 2013-11-13 22:45 10.406 0.019 Johnson V CCD
14 RY Tau RZD 2456610.4457 2013-11-13 22:41 10.403 0.012 Johnson V CCD
15 RY Tau ROE 2456609.9257 2013-11-13 10:13 10.395 0.073 Johnson V CCD
16 DN Tau ROE 2456609.9077 2013-11-13 09:47 11.978 0.038 Johnson V CCD
17 RY Tau MJB 2456609.7302 2013-11-13 05:31 10.332 0.004 Johnson V CCD
18 DN Tau MJB 2456609.6632 2013-11-13 03:55 11.977 0.009 Johnson V CCD
19 DN Tau MJB 2456608.6069 2013-11-12 02:33 12.068 0.007 Johnson V CCD
20 RY Tau MJB 2456608.5913 2013-11-12 02:11 10.247 0.009 Johnson V CCD
21 DN Tau DKS 2456607.9481 2013-11-11 10:45 12.12 0.01 Johnson V CCD
22 DR Tau DKS 2456607.9439 2013-11-11 10:39 11.856 0.007 Johnson V CCD
23 DR Tau MZK 2456607.8716 2013-11-11 08:55 12.764 0.029 Johnson B CCD
24 DR Tau MZK 2456607.8702 2013-11-11 08:53 11.892 0.020 Johnson V CCD
25 DR Tau MZK 2456607.8679 2013-11-11 08:49 12.794 0.030 Johnson B CCD