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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 241 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 V1239 HER CDZ 2459610.6814 2022-01-31 04:21 18.064 0.054 Johnson V CCD
2 V1239 HER PDM 2459610.7458 2022-01-31 05:53 17.9122 0.0714 Johnson V CCD
3 V1239 HER PDM 2459610.7570 2022-01-31 06:10 17.8969 0.0781 Johnson V CCD
4 V1239 HER PDM 2459610.7514 2022-01-31 06:02 18.1314 0.0582 Johnson V CCD
5 V1239 HER SABB 2459612.7672 2022-02-02 06:24 18.108 0.077 Johnson V CCD
6 V1239 HER CDZ 2459613.6726 2022-02-03 04:08 18.117 0.033 Johnson V CCD
7 V1239 HER PDM 2459611.7457 2022-02-01 05:53 18.3299 0.0654 Johnson V CCD
8 V1239 HER PDM 2459611.7569 2022-02-01 06:09 18.0734 0.0569 Johnson V CCD
9 V1239 HER PDM 2459612.7449 2022-02-02 05:52 18.0127 0.0427 Johnson V CCD
10 V1239 HER PDM 2459612.7561 2022-02-02 06:08 17.912 0.0484 Johnson V CCD
11 V1239 HER PDM 2459613.7442 2022-02-03 05:51 17.8515 0.0704 Johnson V CCD
12 V1239 HER PDM 2459613.7554 2022-02-03 06:07 17.7811 0.0659 Johnson V CCD
13 V1239 HER PDM 2459611.7513 2022-02-01 06:01 18.2695 0.0436 Johnson V CCD
14 V1239 HER PDM 2459611.7625 2022-02-01 06:17 18.2144 0.0678 Johnson V CCD
15 V1239 HER PDM 2459612.7505 2022-02-02 06:00 18.1152 0.0345 Johnson V CCD
16 V1239 HER PDM 2459612.7617 2022-02-02 06:16 18.1729 0.0646 Johnson V CCD
17 V1239 HER PDM 2459613.7498 2022-02-03 05:59 18.0492 0.0508 Johnson V CCD
18 V1239 HER PDM 2459613.7610 2022-02-03 06:15 18.0333 0.0774 Johnson V CCD
19 V1239 HER SABB 2459615.7554 2022-02-05 06:07 18.159 0.081 Johnson V CCD
20 V1239 HER CDZ 2459616.6686 2022-02-06 04:02 17.902 0.046 Johnson V CCD
21 V1239 HER YDV 2459616.9965 2022-02-06 11:54 18.322 0.058 Johnson V CCD
22 V1239 HER CDZ 2459617.6626 2022-02-07 03:54 17.962 0.034 Johnson V CCD
23 V1239 HER CDZ 2459617.6626 2022-02-07 03:54 18.126 0.072 Johnson V CCD
24 V1239 HER SABB 2459617.7352 2022-02-07 05:38 18.509 0.147 Johnson V CCD
25 V1239 HER SABB 2459617.7437 2022-02-07 05:50 18.482 0.253 Johnson V CCD