He whetū nui a Beta Andromedae (β Andromedae, beta And, β And), ko Mirach te ingoa ā-ture. Kei te raki-rawhiti o te Square Nui o Pegasus, ā, e kitea ana ki ngā kaitirotiro katoa ki te raki o te 54° S. Ka whakamahia e ngā kaitirotiro whetū ki te kimi i te Andromeda Galaxy. Ko te NGC 404, e mōhiotia ana hoki ko Mirach's Ghost, e whitu ngā meneti koki i Mirach. He whetū toharite o te whetū 2.05, koia te whetū tino mārama i roto i te whetū. He rerekē te mārama mai i te rahi +2.01 ki te +2.10.
197 tau-marama