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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 183111 records
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| # | Target | Observer | Julian Date | UTC Date | Magnitude | Uncertainty | Band | Type |
|---|---|---|---|---|---|---|---|---|
| 1 | T CrB | CLQ | 2460833.5688 | 2025-06-07 01:39 | 10.2 | N/A | Visual | Visual |
| 2 | T CrB | MQA | 2460833.2840 | 2025-06-06 18:48 | <4.9 | N/A | Visual | Visual |
| 3 | T CrB | BALQ | 2460832.9583 | 2025-06-06 10:59 | 10.4 | N/A | Visual | Visual |
| 4 | T CrB | IDG | 2460832.9521 | 2025-06-06 10:51 | 10.192 | 0.005 | CV | CCD |
| 5 | T CrB | IDG | 2460832.9521 | 2025-06-06 10:50 | 10.160 | 0.005 | CV | CCD |
| 6 | T CrB | IDG | 2460832.9520 | 2025-06-06 10:50 | 10.159 | 0.005 | CV | CCD |
| 7 | T CrB | IDG | 2460832.9520 | 2025-06-06 10:50 | 10.207 | 0.005 | CV | CCD |
| 8 | T CrB | IDG | 2460832.9519 | 2025-06-06 10:50 | 10.164 | 0.005 | CV | CCD |
| 9 | T CrB | IDG | 2460832.9518 | 2025-06-06 10:50 | 10.151 | 0.005 | CV | CCD |
| 10 | T CrB | IDG | 2460832.9518 | 2025-06-06 10:50 | 10.168 | 0.005 | CV | CCD |
| 11 | T CrB | IDG | 2460832.9517 | 2025-06-06 10:50 | 10.226 | 0.005 | CV | CCD |
| 12 | T CrB | IDG | 2460832.9516 | 2025-06-06 10:50 | 10.179 | 0.005 | CV | CCD |
| 13 | T CrB | IDG | 2460832.9516 | 2025-06-06 10:50 | 10.234 | 0.005 | CV | CCD |
| 14 | T CrB | CNOC | 2460832.9493 | 2025-06-06 10:46 | 10.0 | 0.1 | Johnson V | DSLR |
| 15 | T CrB | SSOA | 2460832.8904 | 2025-06-06 09:22 | 10.164 | 0.023 | Johnson V | CCD |
| 16 | T CrB | SSOA | 2460832.8901 | 2025-06-06 09:21 | 11.378 | 0.082 | Johnson B | CCD |
| 17 | T CrB | SSOA | 2460832.8898 | 2025-06-06 09:21 | 10.161 | 0.023 | Johnson V | CCD |
| 18 | T CrB | SSOA | 2460832.8894 | 2025-06-06 09:20 | 11.348 | 0.082 | Johnson B | CCD |
| 19 | T CrB | SSOA | 2460832.8891 | 2025-06-06 09:20 | 10.175 | 0.023 | Johnson V | CCD |
| 20 | T CrB | SSOA | 2460832.8888 | 2025-06-06 09:19 | 11.350 | 0.082 | Johnson B | CCD |
| 21 | T CrB | SSOA | 2460832.8884 | 2025-06-06 09:19 | 10.166 | 0.023 | Johnson V | CCD |
| 22 | T CrB | SSOA | 2460832.8881 | 2025-06-06 09:18 | 11.369 | 0.082 | Johnson B | CCD |
| 23 | T CrB | SSOA | 2460832.8877 | 2025-06-06 09:18 | 10.167 | 0.023 | Johnson V | CCD |
| 24 | T CrB | SSOA | 2460832.8874 | 2025-06-06 09:17 | 11.335 | 0.082 | Johnson B | CCD |
| 25 | T CrB | SSOA | 2460832.8871 | 2025-06-06 09:17 | 10.165 | 0.023 | Johnson V | CCD |