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HOAFUN 2.0 is a Windows version of the DOS program HOAFUN distributed in the AAVSO Hands-On Astrophysics curriculum.


  • Windows 95 or later
  • 5MB disk space

What is HOAFUN?

HOAFUN is a very simple tutorial for making variable star estimates and understanding the light curves of various types of variable stars. It has a game you can play to estimate a variable star and build your own light curve. At the end of the game a certificate can be printing with your score and personal lightcurve. It also has many tutorials covering different lightcurves of popular variables such as SS CYG, Z CAM, U GEM, and more.

It is designed for junior high and high school aged students but is good for anyone just starting out.

What is your full e-mail address?
(Your address will not be given out to anyone and is used only to send updates on the software)

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