Home | aavso

Warning: file_get_contents(/aavsoweb/drupal/web/libraries/slick/package.json): Failed to open stream: No such file or directory in Drupal\slick\SlickSkinManager->isBreaking() (line 432 of modules/contrib/slick/src/SlickSkinManager.php).
Warning: Trying to access array offset on value of type bool in Drupal\aavso_app\Plugin\Block\ObservationsCounter->build() (line 103 of modules/custom/aavso_app/src/Plugin/Block/ObservationsCounter.php).
Warning: Trying to access array offset on value of type bool in Drupal\aavso_app\Plugin\Block\ObservationsCounter->build() (line 103 of modules/custom/aavso_app/src/Plugin/Block/ObservationsCounter.php).
Warning: Trying to access array offset on value of type bool in Drupal\aavso_app\Plugin\Block\ObservationsCounter->build() (line 104 of modules/custom/aavso_app/src/Plugin/Block/ObservationsCounter.php).

How to navigate our new AAVSO website:

6-minute video tour

https://www.youtube.com/watch?v=71y9Q3ei_3M

Welcome to the AAVSO!

New explorers are welcome.
YOU can be an astronomer.

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!

/ambassador-program

AAVSO Annual Campaign:

Find out how contributing helps the AAVSO!
Please support our mission today!

/strategic-plan-fundraising-campaign

Our 2021 Membership Drive is on!

Please renew your membership today!
Our goal: 100% membership renewals by December 31, 2020!

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

Resources

(VSX) Variable Star Index

jaavso

The Journal of the AAVSO

Data

Submit and Access Data

Telescope

Tools and Observer Resources

Observing Sections

Observing Sections

/observing-sections

Education

Education

CHOICE Courses, Manuals, Videos

Shop

Shop

https://shop.spreadshirt.com/aavso/

Membership and Support

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 6 , 0 9 7 and Counting ...

Last Observation Received:

1 month ago by TEST - ()

SS Cyg Mar 20.1534 11.035R

Plot SS Cyg 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

Our Stellar Partners

$diffraction limited logo$

Sky & Telescope