Orion-type starAny 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 rotatation. Related entry• variable starsRelated category• TYPES OF STARAlso on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History |