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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 7015 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 CH Cyg SGOR 2456046.8557 2012-04-29 08:32 8.988 0.006 Johnson B CCD
2 CH Cyg SGOR 2456046.8553 2012-04-29 08:31 7.507 0.005 Johnson V CCD
3 CH Cyg SGOR 2456046.8547 2012-04-29 08:30 9.002 0.006 Johnson B CCD
4 CH Cyg SGOR 2456046.8544 2012-04-29 08:30 7.486 0.005 Johnson V CCD
5 CH Cyg SGOR 2456046.8538 2012-04-29 08:29 8.989 0.006 Johnson B CCD
6 CH Cyg SGOR 2456046.8534 2012-04-29 08:28 7.518 0.005 Johnson V CCD
7 CH Cyg SGOR 2456046.8529 2012-04-29 08:28 8.994 0.006 Johnson B CCD
8 CH Cyg SGOR 2456046.8525 2012-04-29 08:27 7.474 0.005 Johnson V CCD
9 CH Cyg SGOR 2456046.8520 2012-04-29 08:26 8.992 0.006 Johnson B CCD
10 CH Cyg SGOR 2456046.8516 2012-04-29 08:26 7.497 0.005 Johnson V CCD
11 CH Cyg SGOR 2456046.8510 2012-04-29 08:25 9.001 0.006 Johnson B CCD
12 CH Cyg SGOR 2456046.8507 2012-04-29 08:24 7.525 0.005 Johnson V CCD
13 CH Cyg SGOR 2456046.8501 2012-04-29 08:24 9.011 0.006 Johnson B CCD
14 CH Cyg JM 2456046.8497 2012-04-29 08:23 5.730 .02 Cousins R CCD
15 CH Cyg SGOR 2456046.8497 2012-04-29 08:23 7.523 0.005 Johnson V CCD
16 CH Cyg JM 2456046.8496 2012-04-29 08:23 7.498 .02 Johnson V CCD
17 CH Cyg JM 2456046.8493 2012-04-29 08:22 8.989 .02 Johnson B CCD
18 CH Cyg SGOR 2456046.8492 2012-04-29 08:22 8.988 0.006 Johnson B CCD
19 CH Cyg SGOR 2456046.8488 2012-04-29 08:22 7.536 0.005 Johnson V CCD
20 CH Cyg SGOR 2456046.8482 2012-04-29 08:21 8.987 0.006 Johnson B CCD
21 CH Cyg SGOR 2456046.8478 2012-04-29 08:20 7.480 0.005 Johnson V CCD
22 CH Cyg SGOR 2456046.8473 2012-04-29 08:20 8.984 0.006 Johnson B CCD
23 CH Cyg SGOR 2456046.8468 2012-04-29 08:19 7.514 0.005 Johnson V CCD
24 CH Cyg SGOR 2456046.8462 2012-04-29 08:18 8.980 0.006 Johnson B CCD
25 CH Cyg SGOR 2456046.8459 2012-04-29 08:18 7.475 0.005 Johnson V CCD