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Deadline Extended to Submit Talk Abstracts

The AAVSO invites would-be presenters to submit their topics by September 10.

https://docs.google.com/forms/d/e/1FAIpQLSem_OgxpsoUuNBwlZ5RZEZmJ4a9qmu32yY24oyhT0fEaLdj8g/viewform

We Have a New Login System

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Registration Opens for Annual Meeting

Join us at the U.S. Space & Rocket Center in Huntsville, Alabama!

https://www.aavso.org/113

Discover the AAVSO

An international community

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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

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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 the Press

AAVSO In the 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:

6 4 , 4 6 6 , 6 9 1 and Counting ...

Last Observation Received:

26 sec ago by MJZ - Juan Manzorro (ES)

Em Cyg Sep 4.8722 13.5Vis.

Plot Em Cyg light curve

Alert Notice 868: Photometry of BZ Camelopardalis in support of HST, Chandra multiwavelength observing campaign

Aug 26

Alert Notice 869: CS Ind HST schedule set for August 30

Aug 23

Stellafane: 88 Years . . . and Counting

Aug 22

New Forums, Chat, and Sign in with Google

Aug 21

Director’s Report for 2024-Q2

Aug 14

Our Stellar Partners

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Text reads "Sky & Telescope" with the ampersand in a circle.