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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 19415 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 EX Lup HMB 2460820.5921 2025-05-25 02:12 12.042 0.018 Cousins R CCD
2 EX Lup HMB 2460820.5920 2025-05-25 02:12 12.018 0.018 Cousins R CCD
3 EX Lup HMB 2460820.5917 2025-05-25 02:12 13.444 0.023 Johnson B CCD
4 EX Lup HMB 2460820.5914 2025-05-25 02:11 13.397 0.023 Johnson B CCD
5 EX Lup HMB 2460820.5912 2025-05-25 02:11 12.739 0.022 Johnson V CCD
6 EX Lup HMB 2460820.5910 2025-05-25 02:11 12.777 0.023 Johnson V CCD
7 EX Lup HMB 2460820.5908 2025-05-25 02:10 11.104 0.036 Cousins I CCD
8 EX Lup HMB 2460820.5907 2025-05-25 02:10 11.106 0.037 Cousins I CCD
9 EX Lup HMB 2460819.9010 2025-05-24 09:37 12.089 0.019 Cousins R CCD
10 EX Lup HMB 2460819.9008 2025-05-24 09:37 12.065 0.020 Cousins R CCD
11 EX Lup HMB 2460819.9006 2025-05-24 09:36 13.406 0.027 Johnson B CCD
12 EX Lup HMB 2460819.9003 2025-05-24 09:36 13.463 0.028 Johnson B CCD
13 EX Lup HMB 2460819.9000 2025-05-24 09:36 12.807 0.026 Johnson V CCD
14 EX Lup HMB 2460819.8999 2025-05-24 09:35 12.835 0.026 Johnson V CCD
15 EX Lup HMB 2460819.8997 2025-05-24 09:35 11.146 0.038 Cousins I CCD
16 EX Lup HMB 2460819.8995 2025-05-24 09:35 11.144 0.037 Cousins I CCD
17 EX Lup HMB 2460818.9005 2025-05-23 09:36 12.268 0.020 Cousins R CCD
18 EX Lup HMB 2460818.9003 2025-05-23 09:36 12.202 0.019 Cousins R CCD
19 EX Lup HMB 2460818.9000 2025-05-23 09:36 13.966 0.037 Johnson B CCD
20 EX Lup HMB 2460818.8997 2025-05-23 09:35 13.955 0.036 Johnson B CCD
21 EX Lup HMB 2460818.8995 2025-05-23 09:35 13.054 0.027 Johnson V CCD
22 EX Lup HMB 2460818.8993 2025-05-23 09:35 12.971 0.027 Johnson V CCD
23 EX Lup HMB 2460818.8991 2025-05-23 09:34 11.174 0.036 Cousins I CCD
24 EX Lup HMB 2460818.8990 2025-05-23 09:34 11.225 0.036 Cousins I CCD
25 EX Lup HMB 2460817.9004 2025-05-22 09:36 12.061 0.018 Cousins R CCD