[12] Imai is a massive, hot and rapidly rotating star that is in the process of evolving into a giant, and is located at a distance of about 345 light-years (106 parsecs) from the Sun.

The Mursi use a series of southern stars to mark their calendar to track seasonal flooding of the Omo River.

Presently it is radiating around 8,100 times the luminosity of the Sun from its outer atmosphere at an effective temperature of 20,400 K,[9] causing it to glow with a blue-white hue.

[19] Consequently, δ Crucis itself is known as 十字架四 (Shí Zì Jià sì, English: the Fourth Star of Cross).

[21] δ Cru is represented in the flags of Australia, New Zealand, Samoa and Papua New Guinea as one of the stars comprising the Southern Cross.