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Global Search Search Photometry

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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 360 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 TW HYA HMB 2459309.5940 2021-04-05 02:15 9.386 0.016 Cousins I CCD
2 TW HYA HMB 2459309.5942 2021-04-05 02:15 9.392 0.015 Cousins I CCD
3 TW HYA HMB 2459309.5944 2021-04-05 02:15 10.815 0.005 Johnson V CCD
4 TW HYA HMB 2459309.5947 2021-04-05 02:16 10.809 0.005 Johnson V CCD
5 TW HYA HMB 2459309.5951 2021-04-05 02:16 11.588 0.007 Johnson B CCD
6 TW HYA HMB 2459309.5954 2021-04-05 02:17 11.580 0.007 Johnson B CCD
7 TW HYA HMB 2459309.5958 2021-04-05 02:17 10.042 0.006 Cousins R CCD
8 TW HYA HMB 2459309.5960 2021-04-05 02:18 10.041 0.006 Cousins R CCD
9 TW HYA MGW 2459310.0604 2021-04-05 13:26 11.416 0.003 Johnson B CCD
10 TW HYA MGW 2459310.0611 2021-04-05 13:27 10.654 0.003 Johnson V CCD
11 TW HYA MGW 2459310.0616 2021-04-05 13:28 9.864 0.004 Cousins R CCD
12 TW HYA MGW 2459310.0620 2021-04-05 13:29 9.284 0.005 Cousins I CCD
13 TW HYA MGW 2459310.0627 2021-04-05 13:30 11.435 0.003 Johnson B CCD
14 TW HYA MGW 2459310.0634 2021-04-05 13:31 10.664 0.003 Johnson V CCD
15 TW HYA MGW 2459310.0639 2021-04-05 13:31 9.871 0.003 Cousins R CCD
16 TW HYA MGW 2459310.0643 2021-04-05 13:32 9.286 0.005 Cousins I CCD
17 TW HYA MGW 2459310.0650 2021-04-05 13:33 11.408 0.003 Johnson B CCD
18 TW HYA MGW 2459310.0657 2021-04-05 13:34 10.642 0.003 Johnson V CCD
19 TW HYA MGW 2459310.0661 2021-04-05 13:35 9.861 0.003 Cousins R CCD
20 TW HYA MGW 2459310.0666 2021-04-05 13:35 9.285 0.005 Cousins I CCD
21 TW HYA MGW 2459310.0672 2021-04-05 13:36 11.395 0.003 Johnson B CCD
22 TW HYA MGW 2459310.0680 2021-04-05 13:37 10.634 0.003 Johnson V CCD
23 TW HYA MGW 2459310.0684 2021-04-05 13:38 9.846 0.003 Cousins R CCD
24 TW HYA MGW 2459310.0688 2021-04-05 13:39 9.277 0.005 Cousins I CCD
25 TW HYA MGW 2459310.0696 2021-04-05 13:40 11.371 0.003 Johnson B CCD