Английская Википедия:54 Aurigae

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54 Aurigae is a multiple star system located around Шаблон:Convert away from the Sun in the northern constellation of Auriga. It is visible to the naked eye as a dim, blue-white hued star with a combined apparent visual magnitude of 6.02. The system is moving further from the Sun with a heliocentric radial velocity of around +19 km/s.

54 Aurigae is resolved into two visible components, of magnitudes 6.22 and 7.82, separated by Шаблон:Val. The double was discovered in 1843 when the separation was only Шаблон:Val. There is no separate measure of the parallax of the secondary, but it shares a common proper motion with the brighter star and they are assumed to form a binary. The spectral class B7 III is assigned to the brighter of the pair, indicating a hot giant star, although it has also been given as B7/8 III/V, suggesting it may be a main sequence star. Most sources can't give a separate spectral classification for the fainter star, but it has been listed as DA1/K4V, indicating it is either a white dwarf or red dwarf.

The brighter component of the visible pair is an eclipsing binary with a period of 1.8797 days, and a primary eclipse depth of 0.03 magnitudes. It is radiating 315 times the luminosity of the Sun from its photosphere at an effective temperature of Шаблон:Convert, and is spinning with a projected rotational velocity of Шаблон:Convert.