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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 7015 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 CH Cyg KMA 2456046.8132 2012-04-29 07:31 8.2 N/A Visual Visual
2 CH Cyg SGOR 2456046.8130 2012-04-29 07:30 7.505 0.005 Johnson V CCD
3 CH Cyg SGOR 2456046.8124 2012-04-29 07:29 9.003 0.007 Johnson B CCD
4 CH Cyg SGOR 2456046.8119 2012-04-29 07:29 7.537 0.005 Johnson V CCD
5 CH Cyg SGOR 2456046.8112 2012-04-29 07:28 8.988 0.007 Johnson B CCD
6 CH Cyg SGOR 2456046.8109 2012-04-29 07:27 7.434 0.005 Johnson V CCD
7 CH Cyg SGOR 2456046.8103 2012-04-29 07:26 8.972 0.007 Johnson B CCD
8 CH Cyg SGOR 2456046.8099 2012-04-29 07:26 7.484 0.005 Johnson V CCD
9 CH Cyg SGOR 2456046.8094 2012-04-29 07:25 8.984 0.007 Johnson B CCD
10 CH Cyg SGOR 2456046.8090 2012-04-29 07:24 7.506 0.005 Johnson V CCD
11 CH Cyg SGOR 2456046.8084 2012-04-29 07:24 8.991 0.007 Johnson B CCD
12 CH Cyg SGOR 2456046.8081 2012-04-29 07:23 7.530 0.005 Johnson V CCD
13 CH Cyg SGOR 2456046.8075 2012-04-29 07:22 8.979 0.007 Johnson B CCD
14 CH Cyg SGOR 2456046.8071 2012-04-29 07:22 7.497 0.005 Johnson V CCD
15 CH Cyg SGOR 2456046.8066 2012-04-29 07:21 9.002 0.007 Johnson B CCD
16 CH Cyg SGOR 2456046.8062 2012-04-29 07:20 7.546 0.005 Johnson V CCD
17 CH Cyg SGOR 2456046.8057 2012-04-29 07:20 8.974 0.007 Johnson B CCD
18 CH Cyg SGOR 2456046.8053 2012-04-29 07:19 7.512 0.005 Johnson V CCD
19 CH Cyg SGOR 2456046.8047 2012-04-29 07:18 8.995 0.007 Johnson B CCD
20 CH Cyg SGOR 2456046.8044 2012-04-29 07:18 7.476 0.005 Johnson V CCD
21 CH Cyg SGOR 2456046.8038 2012-04-29 07:17 8.989 0.007 Johnson B CCD
22 CH Cyg SGOR 2456046.8034 2012-04-29 07:16 7.510 0.005 Johnson V CCD
23 CH Cyg SGOR 2456046.8029 2012-04-29 07:16 9.024 0.007 Johnson B CCD
24 CH Cyg SGOR 2456046.8025 2012-04-29 07:15 7.525 0.005 Johnson V CCD
25 CH Cyg SGOR 2456046.8019 2012-04-29 07:14 9.020 0.007 Johnson B CCD