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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 344 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 TW Hya RMAF 2459283.1232 2021-03-09 14:57 12.422 0.007 Johnson B CCD
2 TW Hya RMAF 2459283.1250 2021-03-09 15:00 11.223 0.003 Johnson V CCD
3 TW Hya RMAF 2459283.1287 2021-03-09 15:05 9.464 0.005 Cousins I CCD
4 TW Hya RMAF 2459283.1269 2021-03-09 15:02 10.269 0.003 Cousins R CCD
5 TW Hya MGW 2459283.1771 2021-03-09 16:15 12.397 0.011 Johnson B CCD
6 TW Hya MGW 2459283.1786 2021-03-09 16:17 12.399 0.011 Johnson B CCD
7 TW Hya MGW 2459283.1802 2021-03-09 16:19 11.243 0.005 Johnson V CCD
8 TW Hya MGW 2459283.1816 2021-03-09 16:21 11.241 0.003 Johnson V CCD
9 TW Hya MGW 2459283.1827 2021-03-09 16:23 10.320 0.005 Cousins R CCD
10 TW Hya MGW 2459283.1831 2021-03-09 16:23 10.310 0.005 Cousins R CCD
11 TW Hya MGW 2459283.1839 2021-03-09 16:24 9.530 0.005 Cousins I CCD
12 TW Hya MGW 2459283.1846 2021-03-09 16:25 9.525 0.004 Cousins I CCD
13 TW Hya MGW 2459283.2057 2021-03-09 16:56 12.400 0.004 Johnson B CCD
14 TW Hya MGW 2459283.2069 2021-03-09 16:57 11.240 0.004 Johnson V CCD
15 TW Hya MGW 2459283.2077 2021-03-09 16:59 10.327 0.005 Cousins R CCD
16 TW Hya MGW 2459283.2082 2021-03-09 16:59 9.525 0.007 Cousins I CCD
17 TW Hya MGW 2459283.2094 2021-03-09 17:01 12.415 0.005 Johnson B CCD
18 TW Hya MGW 2459283.2106 2021-03-09 17:03 11.262 0.004 Johnson V CCD
19 TW Hya MGW 2459283.2113 2021-03-09 17:04 10.321 0.005 Cousins R CCD
20 TW Hya MGW 2459283.2119 2021-03-09 17:05 9.530 0.006 Cousins I CCD
21 TW Hya MGW 2459283.2131 2021-03-09 17:06 12.415 0.005 Johnson B CCD
22 TW Hya MGW 2459283.2143 2021-03-09 17:08 11.260 0.005 Johnson V CCD
23 TW Hya MGW 2459283.2151 2021-03-09 17:09 10.333 0.005 Cousins R CCD
24 TW Hya MGW 2459283.2157 2021-03-09 17:10 9.522 0.006 Cousins I CCD
25 TW Hya MGW 2459283.2168 2021-03-09 17:12 12.430 0.005 Johnson B CCD