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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 4565 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 TY CAS PJED 2458396.3299 2018-10-04 19:55 14.55 0.28 Tri-Color Green DSLR
2 TY CAS PJED 2458405.3468 2018-10-13 20:19 14.37 0.111 Tri-Color Green DSLR
3 TY CAS KNAA 2458409.6874 2018-10-18 04:29 8.132 0.108 Cousins I CCD
4 TY CAS KNAA 2458409.6865 2018-10-18 04:28 11.660 0.100 Cousins R CCD
5 TY CAS KNAA 2458409.6844 2018-10-18 04:25 14.447 0.090 Johnson V CCD
6 TY CAS KNAA 2458417.6891 2018-10-26 04:32 8.586 0.029 Cousins I CCD
7 TY CAS KNAA 2458417.6885 2018-10-26 04:31 12.324 0.008 Cousins R CCD
8 TY CAS KNAA 2458417.6845 2018-10-26 04:25 15.056 0.018 Johnson V CCD
9 TY CAS CKB 2458420.7465 2018-10-29 05:55 14.5 N/A Visual Visual
10 TY CAS ASA 2458426.6042 2018-11-04 02:30 10.5 N/A Visual Visual
11 TY CAS PJED 2458412.2836 2018-10-20 18:48 14.7 0.434 Tri-Color Green DSLR
12 TY CAS KNAA 2458431.7283 2018-11-09 05:28 8.291 0.117 Cousins I CCD
13 TY CAS KNAA 2458431.7277 2018-11-09 05:27 12.003 0.105 Cousins R CCD
14 TY CAS KNAA 2458431.7252 2018-11-09 05:24 14.872 0.094 Johnson V CCD
15 TY CAS TIA 2458396.3264 2018-10-04 19:50 14.38 0.025 Johnson V CCD
16 TY CAS BWY 2458432.7478 2018-11-10 05:56 9.016 0.138 Cousins I CCD
17 TY CAS BWY 2458432.7478 2018-11-10 05:56 11.865 0.126 Cousins R CCD
18 TY CAS BWY 2458432.7476 2018-11-10 05:56 15.289 0.110 Johnson V CCD
19 TY CAS KNAA 2458448.7448 2018-11-26 05:52 8.587 0.121 Cousins I CCD
20 TY CAS KNAA 2458448.7442 2018-11-26 05:51 12.298 0.105 Cousins R CCD
21 TY CAS KNAA 2458448.7417 2018-11-26 05:48 15.170 0.098 Johnson V CCD
22 TY CAS KWIA 2458464.3951 2018-12-11 21:28 16.205 0.072 Johnson V CCD
23 TY CAS KNAA 2458465.7097 2018-12-13 05:01 8.668 0.119 Cousins I CCD
24 TY CAS KNAA 2458465.7090 2018-12-13 05:01 12.476 0.107 Cousins R CCD
25 TY CAS KNAA 2458465.7066 2018-12-13 04:57 15.340 0.097 Johnson V CCD