Gamma Velorum is a quadruple star system in the constellation Vela.

Gamma Velorum is close enough to have accurate parallax measurements as well as distance estimates by more indirect means.

[8] The binary has an orbital period of 78.5 days and separation varying from 0.8 to 1.6 astronomical units.

[11] The pair are too close to be separated without optical assistance, and they appear to the naked eye as a single star of apparent magnitude 1.72 (at the average brightness of γ2 of 1.83).

Gamma Velorum has several fainter companions that share a common motion and are likely to be members of the Vela OB2 association.

Gamma Velorum is associated with several hundred pre-main-sequence stars within less than a degree.

[18] Consequently, γ2 Velorum itself is known as 天社一 (Tiān Shè yī), "the First Star of Celestial Earth God's Temple".