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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 199865 records
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| # | Target | Observer | Julian Date | UTC Date | Magnitude | Uncertainty | Band | Type |
|---|---|---|---|---|---|---|---|---|
| 1 | alf Ori | SHS | 2458952.5000 | 2020-04-13 00:00 | 1.1 | N/A | Visual | Visual |
| 2 | S Her | GZN | 2458952.5000 | 2020-04-13 00:00 | 10.9 | N/A | Visual | Visual |
| 3 | RU Her | GZN | 2458952.5000 | 2020-04-13 00:00 | 8.4 | N/A | Visual | Visual |
| 4 | g Her | GZN | 2458952.5000 | 2020-04-13 00:00 | 5.1 | N/A | Visual | Visual |
| 5 | U Her | GZN | 2458952.5000 | 2020-04-13 00:00 | 12.4 | N/A | Visual | Visual |
| 6 | U UMi | GZN | 2458952.5000 | 2020-04-13 00:00 | 9.4 | N/A | Visual | Visual |
| 7 | T UMi | GZN | 2458952.5000 | 2020-04-13 00:00 | 11.1 | N/A | Visual | Visual |
| 8 | S UMi | GZN | 2458952.5000 | 2020-04-13 00:00 | 10.1 | N/A | Visual | Visual |
| 9 | V CrB | GZN | 2458952.5000 | 2020-04-13 00:00 | 10.6 | N/A | Visual | Visual |
| 10 | RT Boo | GZN | 2458952.5000 | 2020-04-13 00:00 | 11.8 | N/A | Visual | Visual |
| 11 | V Boo | GZN | 2458952.5000 | 2020-04-13 00:00 | 9.2 | N/A | Visual | Visual |
| 12 | T CVn | GZN | 2458952.5000 | 2020-04-13 00:00 | 11.0 | N/A | Visual | Visual |
| 13 | V CVn | GZN | 2458952.5000 | 2020-04-13 00:00 | 7.4 | N/A | Visual | Visual |
| 14 | WZ Dra | GZN | 2458952.5000 | 2020-04-13 00:00 | 9.9 | N/A | Visual | Visual |
| 15 | U Dra | GZN | 2458952.5000 | 2020-04-13 00:00 | 12.6 | N/A | Visual | Visual |
| 16 | T Dra | GZN | 2458952.5000 | 2020-04-13 00:00 | 12.6 | N/A | Visual | Visual |
| 17 | W Dra | GZN | 2458952.5000 | 2020-04-13 00:00 | 11.3 | N/A | Visual | Visual |
| 18 | RU Vir | GZN | 2458952.5000 | 2020-04-13 00:00 | 12.0 | N/A | Visual | Visual |
| 19 | SS Vir | GZN | 2458952.5000 | 2020-04-13 00:00 | 7.4 | N/A | Visual | Visual |
| 20 | RX UMa | GZN | 2458952.5000 | 2020-04-13 00:00 | 10.9 | N/A | Visual | Visual |
| 21 | ST UMa | GZN | 2458952.5000 | 2020-04-13 00:00 | 6.1 | N/A | Visual | Visual |
| 22 | Z UMa | GZN | 2458952.5000 | 2020-04-13 00:00 | 7.1 | N/A | Visual | Visual |
| 23 | GSC 05586-00371 | GCHB | 2458952.4999 | 2020-04-12 23:59 | 13.732 | 0.010 | CV | CCD |
| 24 | HP Lib | MLF | 2458952.4999 | 2020-04-12 23:59 | 13.481 | 0.09 | CR | CCD |
| 25 | HP Lib | MLF | 2458952.4995 | 2020-04-12 23:59 | 13.455 | 0.09 | CR | CCD |