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/contact-us
Dec. 4 on Zoom: join us and Michael Poxon!
Learn about Young Stellar Objects!
Slider Link
https://us02web.zoom.us/webinar/register/2016382109054/WN_x0uxoJ1HSfOHjMHpn7PUKQ
December's featured variable episode: Algol
Interactive 360 video | Versions for planetariums | Tips for the beginner
Slider Link
/featured-variables
New partnership
for exoplanet science
Slider Link
https://unistellaroptics.com/unistellars-aavso-collaboration/
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Slider Link
https://www.aavso.org/press
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
/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:

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

Last Observation Received:

1 hour 13 min ago by KREA - Remco Kemperman (NL)

S CEP   Dec 2.7721   15.409B

Plot S CEP light curve

Alert Notice 760: GM Aur and V1204 Tau to be observed with HST
Dec 2
Auction News - There is 1 Sloane Digital Sky Survey Plate with zero bids! Get it now !
Nov 30
VStar CHOICE Instructor Needed
Nov 29
2021 Webinar Speaker Bios
Nov 19
AAVSO Press
Nov 18
News Archives

Our Stellar Partners


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