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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.

Note: Search parameters have been overridden by the selected campaign: Photometry requested of Blazar-type Quasars 3C 273 and 3C 279.
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 6156 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 3C 273 JM 2455926.0421 2011-12-30 13:00 12.012 .02 Cousins I CCD
2 3C 273 JM 2455926.0404 2011-12-30 12:58 12.711 .02 Johnson V CCD
3 3C 273 JM 2455926.0387 2011-12-30 12:55 12.964 .02 Johnson B CCD
4 3C 273 JM 2455926.0370 2011-12-30 12:53 12.035 .02 Cousins I CCD
5 3C 273 JM 2455926.0352 2011-12-30 12:50 12.696 .02 Johnson V CCD
6 3C 273 JM 2455926.0335 2011-12-30 12:48 12.928 .02 Johnson B CCD
7 3C 273 JM 2455926.0318 2011-12-30 12:45 12.026 .02 Cousins I CCD
8 3C 273 JM 2455926.0301 2011-12-30 12:43 12.695 .02 Johnson V CCD
9 3C 273 JM 2455926.0284 2011-12-30 12:40 12.942 .02 Johnson B CCD
10 3C 273 JM 2455926.0266 2011-12-30 12:38 12.010 .02 Cousins I CCD
11 3C 273 JM 2455926.0249 2011-12-30 12:35 12.705 .02 Johnson V CCD
12 3C 273 JM 2455926.0232 2011-12-30 12:33 12.952 .02 Johnson B CCD
13 3C 273 JM 2455926.0215 2011-12-30 12:30 12.013 .02 Cousins I CCD
14 3C 273 JM 2455926.0198 2011-12-30 12:28 12.713 .02 Johnson V CCD
15 3C 273 JM 2455926.0181 2011-12-30 12:26 12.951 .02 Johnson B CCD
16 3C 273 JM 2455926.0164 2011-12-30 12:23 12.007 .02 Cousins I CCD
17 3C 273 JM 2455926.0147 2011-12-30 12:21 12.713 .02 Johnson V CCD
18 3C 273 JM 2455926.0130 2011-12-30 12:18 12.921 .02 Johnson B CCD
19 3C 273 JM 2455926.0113 2011-12-30 12:16 12.026 .02 Cousins I CCD
20 3C 273 JM 2455926.0095 2011-12-30 12:13 12.726 .02 Johnson V CCD
21 3C 273 JM 2455926.0079 2011-12-30 12:11 12.951 .02 Johnson B CCD
22 3C 273 JM 2455926.0061 2011-12-30 12:08 12.026 .02 Cousins I CCD
23 3C 273 JM 2455926.0044 2011-12-30 12:06 12.722 .02 Johnson V CCD
24 3C 273 JM 2455926.0028 2011-12-30 12:03 12.969 .02 Johnson B CCD
25 3C 273 JM 2455926.0010 2011-12-30 12:01 12.002 .02 Cousins I CCD