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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 4696 records

# Target Observer Julian Date UTC Date Magnitude Uncertainty Band Type
1 V1108 Her CCY 2456190.5424 2012-09-20 01:00 14.0 N/A Visual Visual
2 BB Ari BOA 2456190.6280 2012-09-20 03:04 18.50 N/A Tri-Color Green CCD
3 V1108 Her PKV 2456190.6361 2012-09-20 03:15 16.257 0.056 Unfiltered with V Zeropoint CCD
4 V1108 Her JJI 2456190.6728 2012-09-20 04:08 16.774 0.016 Johnson V CCD
5 V0405 Peg JJI 2456190.7312 2012-09-20 05:32 15.729 0.007 Johnson V CCD
6 HS 0218+3229 JJI 2456190.7783 2012-09-20 06:40 16.199 0.068 Unfiltered with V Zeropoint CCD
7 HS 0218+3229 JJI 2456190.7813 2012-09-20 06:45 15.948 0.053 Unfiltered with V Zeropoint CCD
8 HS 0218+3229 JJI 2456190.7828 2012-09-20 06:47 16.138 0.063 Unfiltered with V Zeropoint CCD
9 HS 0218+3229 JJI 2456190.7843 2012-09-20 06:49 16.145 0.059 Unfiltered with V Zeropoint CCD
10 HS 0218+3229 JJI 2456190.7858 2012-09-20 06:51 16.113 0.055 Unfiltered with V Zeropoint CCD
11 HS 0218+3229 JJI 2456190.7873 2012-09-20 06:53 16.107 0.031 Unfiltered with V Zeropoint CCD
12 HS 0218+3229 JJI 2456190.7889 2012-09-20 06:55 16.226 0.032 Unfiltered with V Zeropoint CCD
13 HS 0218+3229 JJI 2456190.7904 2012-09-20 06:58 16.190 0.030 Unfiltered with V Zeropoint CCD
14 HS 0218+3229 JJI 2456190.7919 2012-09-20 07:00 16.152 0.033 Unfiltered with V Zeropoint CCD
15 HS 0218+3229 JJI 2456190.7934 2012-09-20 07:02 16.170 0.028 Unfiltered with V Zeropoint CCD
16 HS 0218+3229 JJI 2456190.7949 2012-09-20 07:04 16.119 0.030 Unfiltered with V Zeropoint CCD
17 HS 0218+3229 JJI 2456190.7964 2012-09-20 07:06 16.131 0.030 Unfiltered with V Zeropoint CCD
18 HS 0218+3229 JJI 2456190.7979 2012-09-20 07:09 16.204 0.032 Unfiltered with V Zeropoint CCD
19 HS 0218+3229 JJI 2456190.7994 2012-09-20 07:11 16.195 0.032 Unfiltered with V Zeropoint CCD
20 HS 0218+3229 JJI 2456190.8009 2012-09-20 07:13 16.184 0.031 Unfiltered with V Zeropoint CCD
21 HS 0218+3229 JJI 2456190.8025 2012-09-20 07:15 16.204 0.030 Unfiltered with V Zeropoint CCD
22 HS 0218+3229 JJI 2456190.8040 2012-09-20 07:17 16.194 0.029 Unfiltered with V Zeropoint CCD
23 HS 0218+3229 JJI 2456190.8055 2012-09-20 07:19 16.197 0.026 Unfiltered with V Zeropoint CCD
24 HS 0218+3229 JJI 2456190.8070 2012-09-20 07:22 16.159 0.022 Unfiltered with V Zeropoint CCD
25 HS 0218+3229 JJI 2456190.8086 2012-09-20 07:24 16.180 0.023 Unfiltered with V Zeropoint CCD