HD 31134, also designated as HR 1561, is a solitary star located in the northern circumpolar constellation Camelopardalis, the giraffe. It is faintly visible to the naked eye as a white-hued star with an apparent magnitude of 5.74. Gaia DR3 parallax measurements place it 473 light years away. It appears to be approaching the Solar System with a heliocentric radial velocity of . At its current distance, HD 31134's brightness is diminished by 0.35 magnitudes due to interstellar dust. It has an absolute magnitude of +0.19.
The object has a stellar classification of A2 Vs, indicating that it is an A-type main-sequence star with sharp or narrow absorption lines due to slow rotation. Two sources remove the s prefix and instead list it as an ordinary dwarf star while one lists it as a more evolved giant star. Abt and Morell (1995) list it as a slightly hotter peculiar Ap star, but it is now considered unlikely to be chemically peculiar. It has 2.74 times the mass of the Sun and an enlarged radius of . It radiates 103 times the luminosity of the Sun from its photosphere at an effective temperature of . HD 31134 is a rather evolved star, having completed 97.6% of its main sequence lifetime at the age of 432 million years. Consistent with its spectrum, it spins modestly with a projected rotational velocity of .
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