Sign up Sign in
About Us Get Started Forums Contact Us Donate
Global Search Search Photometry

Search Data

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 5525 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 CH UMa DFS 2459853.6401 2022-10-01 03:21 15.280 0.045 Johnson V CCD
2 CH UMa DFS 2459854.6401 2022-10-02 03:21 15.137 0.044 Johnson V CCD
3 CH UMa DFS 2459855.6413 2022-10-03 03:23 14.691 0.207 Johnson V CCD
4 CH UMa CGIC 2459873.5144 2022-10-21 00:20 15.1 N/A Unfiltered with V Zeropoint DSLR
5 CH UMa CCHD 2459876.0413 2022-10-23 12:59 15.341 0.040 Johnson V CCD
6 CH UMa CCHD 2459876.0439 2022-10-23 13:03 15.257 0.038 Johnson V CCD
7 CH UMa CCHD 2459876.0464 2022-10-23 13:06 15.306 0.039 Johnson V CCD
8 CH UMa CCHD 2459876.0489 2022-10-23 13:10 15.307 0.039 Johnson V CCD
9 CH UMa CCHD 2459876.0515 2022-10-23 13:14 15.295 0.039 Johnson V CCD
10 CH UMa CCHD 2459876.9827 2022-10-24 11:35 15.452 0.027 Johnson V CCD
11 CH UMa CCHD 2459877.9565 2022-10-25 10:57 15.352 0.025 Johnson V CCD
12 CH UMa HDE 2459874.8553 2022-10-22 08:31 15.226 0.032 Johnson V CCD
13 CH UMa HDE 2459874.8581 2022-10-22 08:35 15.282 0.023 Johnson V CCD
14 CH UMa HDE 2459874.8649 2022-10-22 08:45 15.288 0.025 Johnson V CCD
15 CH UMa HDE 2459874.8672 2022-10-22 08:48 15.193 0.021 Johnson V CCD
16 CH UMa HDE 2459874.8694 2022-10-22 08:51 15.159 0.021 Johnson V CCD
17 CH UMa HDE 2459874.8717 2022-10-22 08:55 15.167 0.020 Johnson V CCD
18 CH UMa HDE 2459874.8740 2022-10-22 08:58 15.207 0.021 Johnson V CCD
19 CH UMa HDE 2459874.8762 2022-10-22 09:01 15.225 0.022 Johnson V CCD
20 CH UMa HDE 2459874.8785 2022-10-22 09:05 15.217 0.020 Johnson V CCD
21 CH UMa HDE 2459874.8808 2022-10-22 09:08 15.279 0.022 Johnson V CCD
22 CH UMa HDE 2459874.8830 2022-10-22 09:11 15.226 0.020 Johnson V CCD
23 CH UMa HDE 2459874.8853 2022-10-22 09:14 15.162 0.020 Johnson V CCD
24 CH UMa HDE 2459874.8876 2022-10-22 09:18 15.195 0.020 Johnson V CCD
25 CH UMa HDE 2459874.8898 2022-10-22 09:21 15.239 0.020 Johnson V CCD