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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.
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| # | Target | Observer | Julian Date | UTC Date | Magnitude | Uncertainty | Band | Type |
|---|---|---|---|---|---|---|---|---|
| 1 | T CrB | BALQ | 2461179.9750 | 2026-05-19 11:24 | 10.3 | N/A | Visual | Visual |
| 2 | T CrB | HBB | 2461179.8894 | 2026-05-19 09:20 | 9.378 | 0.013 | Cousins R | DSLR |
| 3 | T CrB | HBB | 2461179.8894 | 2026-05-19 09:20 | 10.274 | 0.016 | Johnson V | DSLR |
| 4 | T CrB | HBB | 2461179.8894 | 2026-05-19 09:20 | 11.601 | 0.025 | Johnson B | DSLR |
| 5 | T CrB | HBB | 2461179.8885 | 2026-05-19 09:19 | 9.349 | 0.01 | Cousins R | DSLR |
| 6 | T CrB | HBB | 2461179.8885 | 2026-05-19 09:19 | 10.281 | 0.016 | Johnson V | DSLR |
| 7 | T CrB | HBB | 2461179.8869 | 2026-05-19 09:17 | 11.739 | 0.023 | Johnson B | DSLR |
| 8 | T CrB | HBB | 2461179.8869 | 2026-05-19 09:17 | 9.387 | 0.011 | Cousins R | DSLR |
| 9 | T CrB | HBB | 2461179.8869 | 2026-05-19 09:17 | 10.293 | 0.016 | Johnson V | DSLR |
| 10 | T CrB | HBB | 2461179.8857 | 2026-05-19 09:15 | 11.684 | 0.019 | Johnson B | DSLR |
| 11 | T CrB | HBB | 2461179.8857 | 2026-05-19 09:15 | 9.375 | 0.01 | Cousins R | DSLR |
| 12 | T CrB | HBB | 2461179.8857 | 2026-05-19 09:15 | 10.274 | 0.016 | Johnson V | DSLR |
| 13 | T CrB | HBB | 2461179.8846 | 2026-05-19 09:13 | 9.383 | 0.011 | Cousins R | DSLR |
| 14 | T CrB | HBB | 2461179.8846 | 2026-05-19 09:13 | 10.314 | 0.016 | Johnson V | DSLR |
| 15 | T CrB | HBB | 2461179.8846 | 2026-05-19 09:13 | 11.69 | 0.021 | Johnson B | DSLR |
| 16 | T CrB | HBB | 2461179.8833 | 2026-05-19 09:11 | 11.69 | 0.018 | Johnson B | DSLR |
| 17 | T CrB | HBB | 2461179.8833 | 2026-05-19 09:11 | 9.417 | 0.01 | Cousins R | DSLR |
| 18 | T CrB | HBB | 2461179.8833 | 2026-05-19 09:11 | 10.289 | 0.016 | Johnson V | DSLR |
| 19 | T CrB | HBB | 2461179.8816 | 2026-05-19 09:09 | 9.418 | 0.01 | Cousins R | DSLR |
| 20 | T CrB | HBB | 2461179.8816 | 2026-05-19 09:09 | 10.287 | 0.016 | Johnson V | DSLR |
| 21 | T CrB | HBB | 2461179.8816 | 2026-05-19 09:09 | 11.697 | 0.02 | Johnson B | DSLR |
| 22 | T CrB | HBB | 2461179.8800 | 2026-05-19 09:07 | 10.293 | 0.016 | Johnson V | DSLR |
| 23 | T CrB | HBB | 2461179.8800 | 2026-05-19 09:07 | 9.412 | 0.012 | Cousins R | DSLR |
| 24 | T CrB | HBB | 2461179.8800 | 2026-05-19 09:07 | 11.696 | 0.024 | Johnson B | DSLR |
| 25 | T CrB | RRO | 2461179.8664 | 2026-05-19 08:47 | 7.674 | 0.016 | Cousins I | CCD |