Search Data
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 2957377 records
Sorting disabled for searches with more than 100,000 rows for performance reasons.
Please refine your search or export the data for sorting.
Export Data
Export all search results for your target in CSV, JSON, or XML format.
| # | Target | Observer | Julian Date | UTC Date | Magnitude | Uncertainty | Band | Type |
|---|---|---|---|---|---|---|---|---|
| 1 | V0683 Vir | MUY | 2455022.5000 | 2009-07-10 00:00 | 17.0 | N/A | Unfiltered with V Zeropoint | CCD |
| 2 | V UMa | SHS | 2455022.5000 | 2009-07-10 00:00 | 10.3 | N/A | Visual | Visual |
| 3 | R UMa | SHS | 2455022.5000 | 2009-07-10 00:00 | 11.3 | N/A | Visual | Visual |
| 4 | DZ UMa | SHS | 2455022.5000 | 2009-07-10 00:00 | 11.2 | N/A | Visual | Visual |
| 5 | Z UMa | SHS | 2455022.5000 | 2009-07-10 00:00 | 8.5 | N/A | Visual | Visual |
| 6 | RY UMa | SHS | 2455022.5000 | 2009-07-10 00:00 | 8.2 | N/A | Visual | Visual |
| 7 | SS Vir | SHS | 2455022.5000 | 2009-07-10 00:00 | 7.2 | N/A | Visual | Visual |
| 8 | T UMa | SHS | 2455022.5000 | 2009-07-10 00:00 | 12.7 | N/A | Visual | Visual |
| 9 | SV Crv | SHS | 2455022.5000 | 2009-07-10 00:00 | 7.3 | N/A | Visual | Visual |
| 10 | RY Dra | SHS | 2455022.5000 | 2009-07-10 00:00 | 7.4 | N/A | Visual | Visual |
| 11 | V0339 Vir | SHS | 2455022.5000 | 2009-07-10 00:00 | 7.8 | N/A | Visual | Visual |
| 12 | FS Com | SHS | 2455022.5000 | 2009-07-10 00:00 | 5.6 | N/A | Visual | Visual |
| 13 | SW Vir | SHS | 2455022.5000 | 2009-07-10 00:00 | 7.2 | N/A | Visual | Visual |
| 14 | V CVn | SHS | 2455022.5000 | 2009-07-10 00:00 | 7.2 | N/A | Visual | Visual |
| 15 | R Hya | SHS | 2455022.5000 | 2009-07-10 00:00 | 6.3 | N/A | Visual | Visual |
| 16 | CE Vir | SHS | 2455022.5000 | 2009-07-10 00:00 | 8.7 | N/A | Visual | Visual |
| 17 | V Boo | SHS | 2455022.5000 | 2009-07-10 00:00 | 8.5 | N/A | Visual | Visual |
| 18 | W Boo | SHS | 2455022.5000 | 2009-07-10 00:00 | 4.7 | N/A | Visual | Visual |
| 19 | U Boo | SHS | 2455022.5000 | 2009-07-10 00:00 | 11.2 | N/A | Visual | Visual |
| 20 | tau 4 Ser | SHS | 2455022.5000 | 2009-07-10 00:00 | 6.8 | N/A | Visual | Visual |
| 21 | S CrB | SHS | 2455022.5000 | 2009-07-10 00:00 | 12.1 | N/A | Visual | Visual |
| 22 | R CrB | SHS | 2455022.5000 | 2009-07-10 00:00 | 14.0 | N/A | Visual | Visual |
| 23 | TT CrB | SHS | 2455022.5000 | 2009-07-10 00:00 | 11.6 | N/A | Visual | Visual |
| 24 | del Sco | SHS | 2455022.5000 | 2009-07-10 00:00 | 1.8 | N/A | Visual | Visual |
| 25 | SX Her | SHS | 2455022.5000 | 2009-07-10 00:00 | 9.4 | N/A | Visual | Visual |