How to navigate our new AAVSO website:
6-minute video tour
Slider Link
https://www.youtube.com/watch?v=71y9Q3ei_3M
Welcome to the AAVSO!
New explorers are welcome.
YOU can be an astronomer.
Slider Link
https://www.youtube.com/watch?v=tgCB2lBRk8s&t=5s
AAVSO Ambassador Program
Meet our volunteer Ambassadors!
Find out about the program and how to get involved!
Slider Link
/ambassador-program
AAVSO Annual Campaign:
Find out how contributing helps the AAVSO!
Please support our mission today!
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/strategic-plan-fundraising-campaign
Our 2021 Membership Drive is on!
Please renew your membership today!
Our goal: 100% membership renewals by December 31, 2020!
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/join-aavso
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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
Shop
Shop
https://shop.spreadshirt.com/aavso/
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 3 , 5 0 1 , 8 9 6 and Counting ...

Last Observation Received:

6 days 9 hours ago by CMUA - Murphy Cooper ()

T CrB   Oct 30.5911   4.1Vis.

Plot T CrB light curve

Auth0 Silent Logout
Feb 8
Constellation Charts
Jun 29
Sara's Test Page
Jun 29
AAVSO Legacy CV Program
Jun 23
For New Observers
Jun 9
News Archives

Our Stellar Partners


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Obstech

Sky & Telescope

NSF

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