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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.
Found 3830 records
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| # | Target | Observer | Julian Date | UTC Date | Magnitude | Uncertainty | Band | Type |
|---|---|---|---|---|---|---|---|---|
| 1 | AM Her | NKEA | 2460855.7081 | 2025-06-29 04:59 | 13.075 | 0.005 | Johnson V | CCD |
| 2 | AM Her | PYG | 2460855.4681 | 2025-06-28 23:14 | 13.6 | N/A | Visual | Visual |
| 3 | AM Her | DUBF | 2460854.3995 | 2025-06-27 21:35 | 11.945 | 0.013 | Cousins I | CCD |
| 4 | AM Her | DUBF | 2460854.3988 | 2025-06-27 21:34 | 12.620 | 0.010 | Cousins R | CCD |
| 5 | AM Her | DIL | 2460852.8449 | 2025-06-26 08:16 | 13.435 | 0.011 | Johnson V | CCD |
| 6 | AM Her | MZK | 2460851.5780 | 2025-06-25 01:52 | 11.997 | 0.026 | Cousins I | CCD |
| 7 | AM Her | MZK | 2460851.5777 | 2025-06-25 01:51 | 11.984 | 0.025 | Cousins I | CCD |
| 8 | AM Her | MZK | 2460851.5774 | 2025-06-25 01:51 | 11.96 | 0.024 | Cousins I | CCD |
| 9 | AM Her | MZK | 2460851.5768 | 2025-06-25 01:50 | 13.47 | 0.023 | Johnson B | CCD |
| 10 | AM Her | MZK | 2460851.5763 | 2025-06-25 01:49 | 13.398 | 0.023 | Johnson B | CCD |
| 11 | AM Her | MZK | 2460851.5757 | 2025-06-25 01:49 | 13.503 | 0.025 | Johnson B | CCD |
| 12 | AM Her | MZK | 2460851.5749 | 2025-06-25 01:47 | 12.979 | 0.021 | Johnson V | CCD |
| 13 | AM Her | MZK | 2460851.5746 | 2025-06-25 01:47 | 12.974 | 0.021 | Johnson V | CCD |
| 14 | AM Her | MZK | 2460851.5743 | 2025-06-25 01:46 | 13.016 | 0.021 | Johnson V | CCD |
| 15 | AM Her | DUBF | 2460851.3992 | 2025-06-24 21:34 | 12.911 | 0.028 | Cousins I | CCD |
| 16 | AM Her | DUBF | 2460851.3985 | 2025-06-24 21:33 | 13.518 | 0.025 | Cousins R | CCD |
| 17 | AM Her | PYG | 2460850.4771 | 2025-06-23 23:27 | 13.8 | N/A | Visual | Visual |
| 18 | AM Her | WKE | 2460850.4429 | 2025-06-23 22:37 | 13.067 | 0.012 | Johnson V | CCD |
| 19 | AM Her | WKE | 2460850.4384 | 2025-06-23 22:31 | 13.546 | 0.030 | Johnson B | CCD |
| 20 | AM Her | DUBF | 2460850.3965 | 2025-06-23 21:30 | 11.828 | 0.013 | Cousins I | CCD |
| 21 | AM Her | DUBF | 2460850.3958 | 2025-06-23 21:29 | 12.612 | 0.013 | Cousins R | CCD |
| 22 | AM Her | ANNA | 2460850.3703 | 2025-06-23 20:53 | 12.578 | 0.015 | Johnson U | CCD |
| 23 | AM Her | ANNA | 2460850.3695 | 2025-06-23 20:52 | 13.741 | 0.011 | Johnson V | CCD |
| 24 | AM Her | ANNA | 2460850.3690 | 2025-06-23 20:51 | 13.785 | 0.011 | Johnson V | CCD |
| 25 | AM Her | ANNA | 2460850.3686 | 2025-06-23 20:50 | 13.817 | 0.011 | Johnson V | CCD |