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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 523 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 XZ Tau VMAG 2458429.3921 2018-11-06 21:24 14.086 0.03 Johnson B CCD
2 XZ Tau VMAG 2458429.3785 2018-11-06 21:05 13.132 0.02 Johnson V CCD
3 XZ Tau VMAG 2458429.3776 2018-11-06 21:03 12.010 0.02 Cousins R CCD
4 XZ Tau VMAG 2458429.3768 2018-11-06 21:02 10.618 0.03 Cousins I CCD
5 HL Tau KWIA 2458428.8872 2018-11-06 09:17 15.877 0.170 Johnson B CCD
6 XZ Tau KWIA 2458428.8872 2018-11-06 09:17 14.142 0.015 Johnson B CCD
7 HL Tau KWIA 2458428.8816 2018-11-06 09:09 14.644 0.076 Johnson V CCD
8 XZ Tau KWIA 2458428.8816 2018-11-06 09:09 13.146 0.012 Johnson V CCD
9 XZ Tau VMT 2458428.4644 2018-11-05 23:08 13.270 0.037 Johnson V CCD
10 XZ Tau VMT 2458428.4638 2018-11-05 23:07 13.298 0.081 Johnson V CCD
11 HL Tau VMT 2458428.4620 2018-11-05 23:05 14.451 0.068 Johnson V CCD
12 HL Tau FJAA 2458426.6633 2018-11-04 03:55 14.827 0.076 Johnson V CCD
13 XZ Tau FJAA 2458426.6633 2018-11-04 03:55 12.949 0.018 Johnson V CCD
14 XZ Tau DEY 2458426.6272 2018-11-04 03:03 13.948 0.004 Johnson B CCD
15 HL Tau DEY 2458426.6272 2018-11-04 03:03 15.915 0.015 Johnson B CCD
16 HL Tau DEY 2458426.6241 2018-11-04 02:58 14.623 0.005 Johnson V CCD
17 XZ Tau DEY 2458426.6241 2018-11-04 02:58 12.941 0.002 Johnson V CCD
18 HL Tau SDM 2458426.5986 2018-11-04 02:21 15.855 0.058 Johnson B CCD
19 XZ Tau SDM 2458426.5986 2018-11-04 02:21 13.945 0.054 Johnson B CCD
20 HL Tau SDM 2458426.5951 2018-11-04 02:16 14.632 0.030 Johnson V CCD
21 XZ Tau SDM 2458426.5951 2018-11-04 02:16 12.897 0.021 Johnson V CCD
22 XZ Tau VMT 2458426.4362 2018-11-03 22:28 12.895 0.084 Johnson V CCD
23 XZ Tau VMT 2458426.4357 2018-11-03 22:27 12.857 0.086 Johnson V CCD
24 HL Tau VMT 2458426.4347 2018-11-03 22:25 16.020 0.100 Johnson B CCD
25 HL Tau VMT 2458426.4339 2018-11-03 22:24 15.939 0.092 Johnson B CCD