Astrophysics (index)

Variable Star

(star that varies in magnitude)

A Variable Star is a star which becomes dimmer and brighter over time as seen from Earth. This can be due to changes in the star such as brightening or enlarging, or through a change in whatever the light must pass through to reach us.

Stars generally are at least slightly variable, such as the 0.1% variability of the Sun over its 11 year cycle.

A few of the types:

(star type,transient,variable)

Referenced by:
AD Leonis (AD Leo)
Algol (Beta Per)
Cataclysmic Variable Star (CV)
Frank Ross's Catalog
Pre-Main-Sequence Star (PMS)
T Tauri
T-Tauri Star (TTS)