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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 | 2461299.6083 | 2026-09-16 02:35 | 10.5 | N/A | Visual | Visual |
| 2 | T CrB | SSHA | 2461299.5903 | 2026-09-16 02:10 | <8.4 | N/A | Visual | Visual |
| 3 | T CrB | WALG | 2461299.5743 | 2026-09-16 01:46 | 10.4 | N/A | Visual | Visual |
| 4 | T CrB | DTLB | 2461299.5514 | 2026-09-16 01:14 | 10.3 | N/A | Visual | Visual |
| 5 | T CrB | FADC | 2461299.4236 | 2026-09-15 22:09 | 10.3 | N/A | Visual | Visual |
| 6 | T CrB | LEDE | 2461299.3451 | 2026-09-15 20:17 | 10.3 | N/A | Visual | Visual |
| 7 | T CrB | DFS | 2461299.3276 | 2026-09-15 19:51 | 11.621 | 0.01 | Johnson B | CCD |
| 8 | T CrB | DFS | 2461299.3275 | 2026-09-15 19:51 | 10.351 | 0.009 | Johnson V | CCD |
| 9 | T CrB | APBA | 2461299.3233 | 2026-09-15 19:45 | 10.273 | 0.0119 | TG | CCD |
| 10 | T CrB | OAR | 2461299.2981 | 2026-09-15 19:09 | <7.1 | 0.16 | TG | CCD |
| 11 | T CrB | OAR | 2461299.2907 | 2026-09-15 18:58 | <7.1 | 0.15 | TG | CCD |
| 12 | T CrB | KWO | 2461299.2896 | 2026-09-15 18:57 | 10.3 | N/A | Visual | Visual |
| 13 | T CrB | OAR | 2461299.2834 | 2026-09-15 18:48 | <7.1 | 0.16 | TG | CCD |
| 14 | T CrB | SIVB | 2461299.2743 | 2026-09-15 18:35 | 10.75 | N/A | Visual | Visual |
| 15 | T CrB | SANGA | 2461299.2380 | 2026-09-15 17:42 | 10.374 | 0.007 | Johnson V | CCD |
| 16 | T CrB | SANGA | 2461299.2318 | 2026-09-15 17:33 | 10.381 | 0.009 | Johnson V | CCD |
| 17 | T CrB | NLX | 2461298.8829 | 2026-09-15 09:11 | 11.696 | 0.007 | Johnson B | CCD |
| 18 | T CrB | NLX | 2461298.8808 | 2026-09-15 09:08 | 10.329 | 0.008 | Johnson V | CCD |
| 19 | T CrB | SKA | 2461298.6803 | 2026-09-15 04:19 | 9.921 | 0.002 | CV | CCD |
| 20 | T CrB | SKA | 2461298.6798 | 2026-09-15 04:18 | 9.899 | 0.002 | CV | CCD |
| 21 | T CrB | SKA | 2461298.6759 | 2026-09-15 04:13 | 10.063 | 0.002 | CV | CCD |
| 22 | T CrB | SKA | 2461298.6751 | 2026-09-15 04:12 | 10.047 | 0.002 | CV | CCD |
| 23 | T CrB | SKA | 2461298.6671 | 2026-09-15 04:00 | 10.029 | 0.002 | CV | CCD |
| 24 | T CrB | SKA | 2461298.6665 | 2026-09-15 03:59 | 10.032 | 0.002 | CV | CCD |
| 25 | T CrB | CCHD | 2461298.6396 | 2026-09-15 03:21 | 11.817 | 0.003 | Johnson B | CCD |