An is any kind of eruptive variable associated with nebulosity, including T Tauri stars and FU Orionis stars. Orion-type stars are young objects that undergo irregular outbursts of up to several magnitudes but that may also show more regular changes linked to their rotation.
Related entry• variable stars
Related category• TYPES OF STAR
Home • About • Copyright © The Worlds of David Darling • Encyclopedia of Alternative Energy • Contact