New AAVSO Executive Director
.
Slider Link
/dr-brian-kloppenborg
Andrea Dupree et al. utilized AAVSO data! Tom Calderwood of AAVSO is a co-author.
.
Slider Link
https://arxiv.org/abs/2208.01676
Registrations are open!
Want to present? Submit an abstract!
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/111
Solutions for "Barriers" to Astronomical Observing
Provided by AAVSO Ambassadors
Slider Link
https://www.youtube.com/watch?v=SU5XHHvKxXc
Discover the AAVSO
an international community
Slider Link
/welcome

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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 Logo
(VSX) Variable Star Index
/vsx

Pick a Star

Plot a light curve
jaavso
The Journal of the AAVSO
/apps/jaavso
Data
Submit and Access Data
/databases
Telescope
Tools and Observer Resources
/observers
Observing Sections
Observing Sections
/observing-sections
Education
Education
CHOICE Courses, Manuals, Videos
/education
AAVSO In Press
AAVSO In Press
/press
Membership and Support
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:

5 3 , 4 8 5 , 2 2 3 and Counting ...

Last Observation Received:

2 min 7 sec ago by SHS - Steven Sharpe (CA)

1601+67   Jul 10.0819   9.961V

Plot 1601+67 light curve

Constellation Charts
Aug 3
AAVSO Legacy CV Program
Aug 3
For New Observers
Aug 3
Alert Notice 788: RU Lup monitoring needed for HST observations
Aug 1
AAVSO Board Officers and Members - Martina Arndt
Jul 29
News Archives

Our Stellar Partners


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Unistellar

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Text reads "Sky & Telescope" with the ampersand in a circle.

NSF

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