Английская Википедия:120 Lachesis

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Шаблон:Short description Шаблон:Infobox planet

Lachesis (minor planet designation: 120 Lachesis) is a large main-belt asteroid. It was discovered by French astronomer Alphonse Borrelly on April 10, 1872, and independently by German-American astronomer Christian Heinrich Friedrich Peters on April 11, 1872, then named after Lachesis, one of the Moirai, or Fates, in Greek mythology.[1] A Lachesean occultation of a star occurred in 1999 and was confirmed visually by five observers and once photoelectrically, with the chords yielding an estimated elliptical cross-section of Шаблон:Nowrap.[2]

This body is orbiting the Sun with a period of 5.50 years and an eccentricity (ovalness) of 0.05. The orbital plane is inclined by 7° to the plane of the ecliptic. Photometric observations of this asteroid were made in early 2009 at the Organ Mesa Observatory in Las Cruces, New Mexico. The resulting light curve shows a synodic rotation period of 46.551 ± 0.002 hours with a brightness variation of 0.14 ± 0.02 in magnitude.[3] It is a very slow rotator[4] with the longest rotation period of an asteroid more than 150 km in diameter.[5] As a primitive C-type asteroid[6] it is probably composed of carbonaceous material.

References

Шаблон:Reflist

External links

Шаблон:Use mdy dates Шаблон:Minor planets navigator Шаблон:Small Solar System bodies


Шаблон:C-beltasteroid-stub

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