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The mission of the AAVSO is to enable anyone, anywhere to participate in scientific discovery through variable star astronomy.

Resources

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(VSX) Variable Star Index

Pick a Star

Plot a light curve
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The Journal of the AAVSO
Data
Submit and Access Data
Telescope
Tools and Observer Resources
Observing Sections
Observing Sections
Education
Education
CHOICE Courses, Manuals, Videos
Membership and Support
Membership and Support

The AAVSO is an equal opportunity and discrimination / harassment free environment. 
Please read our policies HERE

AAVSO at a Glance

Variable Star Observations in Database:

4 3 , 4 8 1 , 4 0 9 and Counting ...

Last Observation Received:

3 weeks 1 day ago by BRIE - Richard Brown (US)

V347 AUR   Nov 6.5101   12.592V

Plot V347 AUR light curve

Our Stellar Partners


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Sky & Telescope

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