The mission of the AAVSO is to enable anyone, anywhere to participate in scientific discovery through variable star astronomy.
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AAVSO at a Glance
Variable Star Observations in Database:
6 3 , 5 2 4 , 4 5 8 and Counting ...
Last Observation Received:
10 min 19 sec ago by CK - Stephen Cook (US)
V509 OPH Jul 14.3458 12.848V