Skip to main content

Support the AAVSO


Invitation for 2020 AAVSO Board nominees

How do we react to COVID-19?


VIRTUAL 2020 AAVSO Annual Meeting Events

AAVSO offers you our remaining 2020 CHOICE courses for free

The SAS/AAVSO 2020 Symposium will be held online!

Pick a Star

Type star name then click action.
Recent Activity

Variable Star Observations in Database:

41,292,653 and Counting ...
Last Observation Received:

21 min 33 sec ago by BLD - David Blane (ZA)

S APS   May 25.7847   9.850TG   

Plot S APS light curve


We gratefully acknowledge support from the Friends of the AAVSO:




AAVSO is an equal opportunity and discrimination/harassment-free environment. Please read this, and all our policies here.

AAVSO 49 Bay State Rd. Cambridge, MA 02138 617-354-0484