• Source: 120 Lachesis

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. 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 184 × 144 km.
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. It is a very slow rotator with the longest rotation period of an asteroid more than 150 km in diameter. As a primitive C-type asteroid it is probably composed of carbonaceous material.




References






External links


120 Lachesis at AstDyS-2, Asteroids—Dynamic Site
Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
120 Lachesis at the JPL Small-Body Database

Kata Kunci Pencarian:

• Daftar planet minor/101–200
• Ngengat kepala maut
• Daftar planet minor: 1–1000
• Helios
• 120 Lachesis
• Lachesis (disambiguation)
• Lachesis
• 120
• Moirai
• 157 Dejanira
• Alphonse Borrelly
• 271 Penthesilea
• 119 Althaea
• List of minor planets: 1–1000