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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.

Enter list of star names, comma separated.
Enter a date in natural language, jd, or utc format.
Enter a date in natural language, jd, or utc format.
Separate multiple observers with commas.
Campaign overrides targets and dates.

Found 110142 records

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# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 T CrB BPEE 2460601.5389 2024-10-18 00:56 10.4 N/A Visual Visual
2 T CrB ASA 2460601.5715 2024-10-18 01:43 6.6 N/A Visual Visual
3 T CrB LDRB 2460601.5376 2024-10-18 00:54 10.280 0.001 Johnson V CCD
4 T CrB LDRB 2460601.5411 2024-10-18 00:59 10.282 0.001 Johnson V CCD
5 T CrB LDRB 2460601.5447 2024-10-18 01:04 10.283 0.001 Johnson V CCD
6 T CrB LDRB 2460601.5483 2024-10-18 01:09 10.267 0.001 Johnson V CCD
7 T CrB LDRB 2460601.5519 2024-10-18 01:14 10.267 0.001 Johnson V CCD
8 T CrB LDRB 2460601.5554 2024-10-18 01:19 10.250 0.001 Johnson V CCD
9 T CrB LDRB 2460601.5590 2024-10-18 01:24 10.253 0.001 Johnson V CCD
10 T CrB LDRB 2460601.5626 2024-10-18 01:30 10.241 0.001 Johnson V CCD
11 T CrB LDRB 2460601.5662 2024-10-18 01:35 10.243 0.002 Johnson V CCD
12 T CrB LDRB 2460601.5697 2024-10-18 01:40 10.254 0.001 Johnson V CCD
13 T CrB WCR 2460602.4849 2024-10-18 23:38 10.1 N/A Visual Visual
14 T CrB LMA 2460602.4736 2024-10-18 23:22 11.538 0.007 Johnson B CCD
15 T CrB LMA 2460602.4793 2024-10-18 23:30 10.323 0.009 Johnson V CCD
16 T CrB LMA 2460602.4751 2024-10-18 23:24 11.542 0.007 Johnson B CCD
17 T CrB LMA 2460602.4798 2024-10-18 23:30 10.327 0.009 Johnson V CCD
18 T CrB LMA 2460602.4767 2024-10-18 23:26 11.540 0.007 Johnson B CCD
19 T CrB LMA 2460602.4803 2024-10-18 23:31 10.321 0.009 Johnson V CCD
20 T CrB LMA 2460602.4782 2024-10-18 23:28 11.531 0.007 Johnson B CCD
21 T CrB LMA 2460602.4807 2024-10-18 23:32 10.314 0.009 Johnson V CCD
22 T CrB BQE 2460602.5243 2024-10-19 00:35 10.1 N/A Visual Visual
23 T CrB ASA 2460602.5750 2024-10-19 01:48 6.6 N/A Visual Visual
24 T CrB PJEE 2460601.5037 2024-10-18 00:05 10.221 0.0152 Johnson V CCD
25 T CrB PJEE 2460601.5086 2024-10-18 00:12 10.212 0.0150 Johnson V CCD