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New partnership

for exoplanet science

https://unistellaroptics.com/unistellars-aavso-collaboration/

AAVSO's 110th Anniversary Auction

Have fun bidding on great items while supporting our cause!

https://www.32auctions.com/aavso110anniversary

Welcoming Steve Shore at the AAVSO Spectroscopy Observing Section!

https://www.aavso.org/press-shore-spectroscopy-section

Welcome to the AAVSO!

New explorers are welcome.
YOU can be an astronomer.

https://www.youtube.com/watch?v=tgCB2lBRk8s&t=5s

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

Resources

(VSX) Variable Star Index

/vsx

The Journal of the AAVSO

/apps/jaavso

Submit and Access Data

/databases

Tools and Observer Resources

/observers

Observing Sections

/observing-sections

Education

CHOICE Courses, Manuals, Videos

/education

AAVSO In Press

/press

Membership and Support

/join-aavso

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 7 , 0 7 7 , 3 7 7 and Counting ...

Last Observation Received:

44 sec ago by SPAO - Paolo Siliprandi (IT)

V603 Aql Oct 10.8 <6.9Vis.

Plot V603 Aql light curve

AAVSO Board Officers and Members - Thomas Maccarone

Nov 11

AAVSO Board Officers and Members - Dennis Conti

Nov 11

AAVSO Board Officers and Members - Sarah Austrin-Willis

Nov 10

AAVSO's 110th Annual Meeting: Poster Hall

Nov 6

Alert Notice 759: Outburst of T Tau star V347 Aur

Nov 4

News Archives

Our Stellar Partners

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Resources

Pick a Star

AAVSO at a Glance

Variable Star Observations in Database:

Last Observation Received:

Our Stellar Partners