HD 89571
HD 89571 (HR 4062) is a binary star located in the northern circumpolar constellation Camelopardalis. It is faintly visible to the naked eye with a combined apparent magnitude of 5.51 and is estimated to be 142 light years away from the Solar System. However, it is receding with a heliocentric radial velocity of . The primary has a stellar classification of A9 V, indicating that it is an ordinary A-type main-sequence star. David S. Evans gave it a slightly warmer class of A6 V while Cowley et al. classified it as F0 IV, indicating a F-type subgiant. Nevertheless, the two components take roughly 2 years to orbit each other at a mean separation of . The components have masses of  and , with the latter being a probable M-type star. HD 89571 has a radius of  and a luminosity of . This yields an effective temperature of , giving a white hue. It is estimated to be 710 million years old and spins rapidly with a projected rotational velocity of ; it has a near solar metallicity, equating to an iron abundance 110% that of the Sun. References

A-type main-sequence stars
Binary stars
Camelopardalis
K-type main-sequence stars
BD+84 00234
089571
051384
4062