HD 29559

HD 29559 is a solitary star in the southern constellation Caelum. It has an apparent magnitude of 6.40, placing it near the max naked eye visibility. The star is situated at a distance 408 light years based on parallax measurements but is receding with a heliocentric radial velocity of $$.

HD 29559 has a stellar classification of A5 IV-V — a luminosity class intermediate between a main sequence star and subgiant. It has alternatively been classified as A3 Vs:, indicating that it is an A-type main-sequence star with sharp (narrow) absorption lines due to slow rotation. However, there is uncertainty behind the class.

It has 2.19 times the mass of the Sun and a slightly enlarged diameter of $$. It radiates at 35 times the luminosity of the Sun from its photosphere at an effective temperature of $$, which gives it a white hue. Contrary to the second classification, HD 29559 spins rapidly with a projected rotational velocity of $3.17$ and has a solar metallicity. It is estimated to be 719 million years old, having completed 85.9% of its main sequence lifetime.