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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 7786 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 ASASSN-14cn PDM 2459824.3309 2022-09-01 19:56 18.9374 0.5051 Johnson V CCD
2 ASASSN-14cn DEY 2459823.5882 2022-09-01 02:06 18.784 0.210 Johnson V CCD
3 ASASSN-14cn DEY 2459823.5623 2022-09-01 01:29 18.808 0.251 Johnson V CCD
4 UU Aql CCT 2459823.5237 2022-09-01 00:34 12.103 0.01 Johnson V CCD
5 UU Aql DFS 2459823.4691 2022-08-31 23:15 12.126 0.009 Johnson V CCD
6 ASASSN-14cn SUQ 2459823.3900 2022-08-31 21:21 18.702 0.0769 CV CCD
7 UU Aql OJR 2459823.3819 2022-08-31 21:09 12.3 N/A Visual Visual
8 UU Aql MJZ 2459823.3805 2022-08-31 21:07 12.0 N/A Visual Visual
9 RY Ser DFS 2459823.3710 2022-08-31 20:54 16.109 0.110 Johnson V CCD
10 SDSS J190817.07+394036.4 DFS 2459823.3689 2022-08-31 20:51 16.257 0.076 Johnson V CCD
11 V1239 Her DFS 2459823.3636 2022-08-31 20:43 15.263 0.029 Johnson V CCD
12 GP Com DFS 2459823.3419 2022-08-31 20:12 16.152 0.131 Johnson V CCD
13 CH UMa DFS 2459823.3346 2022-08-31 20:01 15.141 0.071 Johnson V CCD
14 RY Ser SRX 2459823.0160 2022-08-31 12:23 15.9 N/A Visual Visual
15 UU Aql SRX 2459822.9597 2022-08-31 11:01 12.0 N/A Visual Visual
16 UU Aql DFS 2459822.4797 2022-08-30 23:30 12.734 0.010 Johnson V CCD
17 RY Ser DFS 2459822.3847 2022-08-30 21:13 16.158 0.098 Johnson V CCD
18 SDSS J190817.07+394036.4 DFS 2459822.3828 2022-08-30 21:11 15.996 0.071 Johnson V CCD
19 CH UMa DFS 2459822.3493 2022-08-30 20:22 15.112 0.064 Johnson V CCD
20 UU Aql BVS 2459821.5751 2022-08-30 01:48 15.785 0.1 Johnson V CCD
21 ASASSN-14cn DEY 2459821.5627 2022-08-30 01:30 18.993 0.154 Johnson V CCD
22 RY Ser BVS 2459821.5223 2022-08-30 00:32 15.946 0.1 Johnson V CCD
23 UU Aql DFS 2459821.4705 2022-08-29 23:17 15.960 0.049 Johnson V CCD
24 ASASSN-14cn NOT 2459821.4142 2022-08-29 21:56 18.630 0.181 CV CCD
25 UU Aql MUY 2459821.4049 2022-08-29 21:43 <14.0 N/A Visual Visual