Webinar | The Latest News from SNEWS
Join Dan Milisavljevic (Purdue University) for an update on SNEWS.
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https://us02web.zoom.us/webinar/register/3917366198825/WN_JPv2A2XlSbOsURv5Y2EgsA
Donate to the AAVSO!
Your support will provide opportunities that will influence generations of observers.
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RW Cephei, King of Kings
The physical processes behind a hypergiant’s “great dimming” may have been unlocked by high-resolution imagery and a century’s worth of AAVSO observations
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https://www.aavso.org/blog/rw-cephei
Discover the AAVSO
An international community
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Welcome to the conversation.
We are excited to announce a transition to a new forum system. The new system is modern, faster, and easier-to-use.
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https://forums.aavso.org/

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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
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Pick a Star

Plot a light curve
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The Journal of the AAVSO
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Data
Submit and Access Data
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Telescope
Tools and Observer Resources
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Observing Sections
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Education
Education
CHOICE Courses, Manuals, Videos
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AAVSO In the Press
AAVSO In the Press
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Membership and Support
Membership and Support
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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 6 , 1 0 5 , 6 0 0 and Counting ...

Last Observation Received:

15 min 55 sec ago by WTHB - Thomas Wikander (SE)

V0603 PER   Jan 17.7159   11.176R

Plot V0603 PER light curve

Solar Section Looks Back to the Future
Dec 23
Winter 2024 Visual Observing Challenge
Dec 19
JAAVSO Volume 52 Number 2, 2024 is published
Dec 15
RW Cephei, a King of Kings
Dec 11
Board Election Results
Nov 19
News Archives

Our Stellar Partners


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