Skip to main content


The membership database is currently undergoing upgrading/testing. Web functions that involve an interface with the member database (webobs, etc.) may experience intermittent problems. We hope to have this issue resolved within 24 hours (by 5pm Eastern Time on October 1st or 12:00 UT). Thank you for your patience.

The Variability of Young Stellar Objects


William Herbst
Astronomy Department, Wesleyan University, Middletown, CT 06459

Invited review paper, received February 15, 2012


A brief review of the types and causes of the variability of young stellar objects (pre-main sequence stars) is given with an emphasis on what we do not yet understand and how amateur observers can continue to make important contributions to the field.

link to article in ADS

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