old logo

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

Pick a Star

Plot a light curve
jaavso
The Journal of the AAVSO
Data
Submit and Access Data
Telescope
Tools and Observer Resources
Observing Sections
Observing Sections
Education
Education
CHOICE Courses, Manuals, Videos
Join and Support
Join 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 5 , 9 9 9 , 9 5 3 and Counting ...

Last Observation Received:

4 min 16 sec ago by PEX - Andrew Pearce (AU)

V CRB   Mar 28.3872   10.158V

Plot V CRB light curve

Our Stellar Partners


Boyce Astro Logo

diffraction limited logo

DC-3 Dreams Logo

itelescope logo

Sky & Telescope

NSF

NASA Logo