Английская Википедия:76 Freia
Шаблон:Use dmy dates Шаблон:Infobox planet
Freia (minor planet designation: 76 Freia) is a very large main-belt asteroid. It orbits in the outer part of the asteroid belt and is classified as a Cybele asteroid.[1] Its composition is very primitive and it is extremely dark in color. Freia was discovered by the astronomer Heinrich d'Arrest on October 21, 1862, in Copenhagen, Denmark. It was his first and only asteroid discovery. It is named after the goddess Freyja in Norse mythology.
The sidereal orbital period of this asteroid is commensurable with that of Jupiter, which made it useful for ground-based mass estimates of the giant planet.[2] A shape model for the asteroid was published by Stephens and Warner (2008), based upon lightcurve data. This yielded a sidereal rotation period of Шаблон:Val. They found two possible solutions for the spin axis, with the preferred solution in ecliptic coordinates being (λ, β) = (Шаблон:Val, Шаблон:Val).[3]
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- Английская Википедия
- Cybele asteroids
- Discoveries by Heinrich Louis d'Arrest
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- P-type asteroids (Tholen)
- X-type asteroids (SMASS)
- Astronomical objects discovered in 1862
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