Phecda

Gamma Ursae Majoris (Gamma UMa, γ Ursae Majoris, γ UMa, Phad) is an Ae star, which is surrounded by an envelope of gas that is adding emission lines to the spectrum of the star; hence the 'e' suffix in the stellar classification of A0 Ve. It has an effective temperature of 9,355 K in its outer atmosphere. This star is rotating rapidly, with a projected rotational velocity of 178 km/s^–1. It has an estimated age of 300 million years.

Phecda is located in relatively close physical proximity to the prominent Mizar-Alcor star system. The two are separated by an estimated distance of 8.55 ly (2.62 pc). The star Beta Ursae Majoris is separated from Gamma UMa by 11.0 ly (3.4 pc).