donate to our Annual Campaign!
.
Slider Link
https://www.aavso.org/110-fundraising-campaign
on her new endeavor!
.
Slider Link
https://www.aavso.org/director-new-endeavor
Dec. 11 on Zoom: join us and Dr. Arne Henden!
Learn about conducting observations with the AAVSOnet faint star monitors!
Slider Link
https://us02web.zoom.us/webinar/register/6616382157925/WN_S33YFqMeQRWIPXe8hGAcMw
December's featured variable episode: Algol
Interactive 360 video | Versions for planetariums | Tips for the beginner
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/featured-variables
New partnership
for exoplanet science
Slider Link
https://unistellaroptics.com/unistellars-aavso-collaboration/
Welcome to the AAVSO!
New explorers are welcome.
YOU can be an astronomer.
Slider Link
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

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(VSX) Variable Star Index
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Pick a Star

Plot a light curve
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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:

4 8 , 6 8 1 , 1 3 8 and Counting ...

Last Observation Received:

12 min 16 sec ago by RFDA - Filipp Romanov (RU)

V694 MON   Nov 17.3255   7.554I

Plot V694 MON light curve

LPV of the Month (December 2021): S Lyrae
Dec 7
Superstar Astronomers: AAVSO's 2022 educational webinar series
Dec 7
Wishing Stella the best on her new endeavor!
Dec 7
Alert Notice 761: Monitoring b Per eclipse in December 2021
Dec 7
Alert Notice 760: GM Aur and V1204 Tau to be observed with HST
Dec 2
News Archives

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