Book plate by Sydney Hall depicting Ursa Major's stars
Delta Ursae Majoris (δ UMa / δ Ursae Majoris) is a star in the constellation Ursa Major. It also has the traditional name Megrez (Arabic: مغرز).
Megrez has an apparent magnitude of +3.32 making it the dimmest of the seven stars in the Big Dipper. Located 81 light years away, it has spectral type A3. It has two faint companions, the 11th magnitude Delta Ursae Majoris B, 190 arcseconds away and the 10th magnitude Delta Ursae Majoris C, 186 arcseconds away.
It is part of the Ursa Major moving group.
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