This gives a lower bound on the azimuthal velocity of rotation along the star's equator. Tau Puppis is radiating energy from its outer envelope at an effective temperature of around , giving it the orange hue of a cool, K-type star.
This establishes a lower threshold for the angular velocity along the star's equator. Tau Puppis radiates energy from its outer shell at a temperature of around , giving it an orange hue characteristic of a cool, K-type star.