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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

Pick a Star

Plot a light curve
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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 1 2 , 0 9 1 and Counting ...

Last Observation Received:

11 min 49 sec ago by FLSA - Louw Ferreira (ZA)

VX HER   Jul 23.7475   10.016V

Plot VX HER light curve

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