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Global Search Search Photometry Search Solar My Observations

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.

Note: Search parameters have been overridden by the selected campaign: Unveiling CI Hyi as a symbiotic system.
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 1079 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 CI Hyi MEMC 2460920.1510 2025-09-01 15:37 5.388 0.018 Cousins I CCD
2 CI Hyi MEMC 2460920.1503 2025-09-01 15:36 8.549 0.019 Sloan r CCD
3 CI Hyi MEMC 2460920.1493 2025-09-01 15:34 9.537 0.006 Johnson V CCD
4 CI Hyi MEMC 2460920.1477 2025-09-01 15:32 10.937 0.009 Johnson B CCD
5 CI Hyi MEMC 2460919.2009 2025-08-31 16:49 5.434 0.017 Cousins I CCD
6 CI Hyi MEMC 2460919.2002 2025-08-31 16:48 8.643 0.003 Sloan r CCD
7 CI Hyi MEMC 2460919.1993 2025-08-31 16:46 9.537 0.027 Johnson V CCD
8 CI Hyi MEMC 2460919.1977 2025-08-31 16:44 10.937 0.007 Johnson B CCD
9 CI Hyi MEMC 2460918.1965 2025-08-30 16:42 5.438 0.035 Cousins I CCD
10 CI Hyi MEMC 2460918.1958 2025-08-30 16:41 8.637 0.009 Sloan r CCD
11 CI Hyi MEMC 2460918.1948 2025-08-30 16:40 9.536 0.005 Johnson V CCD
12 CI Hyi MEMC 2460918.1933 2025-08-30 16:38 10.931 0.007 Johnson B CCD
13 CI Hyi MEMC 2460917.2021 2025-08-29 16:50 5.468 0.016 Cousins I CCD
14 CI Hyi MEMC 2460917.2014 2025-08-29 16:49 8.645 0.008 Sloan r CCD
15 CI Hyi MEMC 2460917.2004 2025-08-29 16:48 9.525 0.004 Johnson V CCD
16 CI Hyi MEMC 2460917.1988 2025-08-29 16:46 10.939 0.013 Johnson B CCD
17 CI Hyi MEMC 2460916.2610 2025-08-28 18:15 5.446 0.014 Cousins I CCD
18 CI Hyi MEMC 2460916.2603 2025-08-28 18:14 8.640 0.007 Sloan r CCD
19 CI Hyi MEMC 2460916.2593 2025-08-28 18:13 9.511 0.004 Johnson V CCD
20 CI Hyi MEMC 2460916.2578 2025-08-28 18:11 10.934 0.013 Johnson B CCD
21 CI Hyi MEMC 2460899.2815 2025-08-11 18:45 5.488 0.012 Cousins I CCD
22 CI Hyi MEMC 2460899.2809 2025-08-11 18:44 8.681 0.008 Sloan r CCD
23 CI Hyi MEMC 2460899.2799 2025-08-11 18:43 9.577 0.005 Johnson V CCD
24 CI Hyi MEMC 2460899.2784 2025-08-11 18:40 10.986 0.010 Johnson B CCD
25 CI Hyi MEMC 2460883.2545 2025-07-26 18:06 5.617 0.016 Cousins I CCD