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Please note: there will be no session July 2

Happy Independence Day weekend to those in the USA!

/2022-how-to-hours

Want to present? Submit an abstract!

Submission deadline: Sept. 4

Discover the AAVSO

an international community

AAVSO is accepting self-nominations for 2022 AAVSO Board candidacy!

Nomination period ends July 15th

/2022-invitation-board-nominees

Interested? Please click here!

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stands in solidarity

https://aas.org/posts/news/2022/03/message-about-scientific-community-ukraine

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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) Variable Star Index

jaavso

The Journal of the AAVSO

Data

Submit and Access Data

Telescope

Tools and Observer Resources

Observing Sections

Observing Sections

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Education

Education

CHOICE Courses, Manuals, Videos

AAVSO In Press

AAVSO In Press

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:

5 3 , 2 1 0 , 5 1 9 and Counting ...

Last Observation Received:

2 min 7 sec ago by AJV - Javier Alonso (ES)

af cyg Jun 9.9514 8.0Vis.

Plot af cyg light curve

JAAVSO Volume 50, Number 1, June 2022, print version now available

Jun 28

Solar Bulletin - Volume 78, Number 5

Jun 17

JAAVSO Volume 50 Number 1, 2022 is published

Jun 15

Alert Notice 781: Nova in Musca - N Mus 2022 (= ASASSN-22hw = AT 2022mmp)

Jun 14

Alert Notice 780: Observations needed for four YSO targets being observed with HST

Jun 14

Our Stellar Partners

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