379 Huenna is a large Themistian asteroid. It is classified as a C-type asteroid

C-type asteroid

C-type asteroids are carbonaceous asteroids. They are the most common variety, forming around 75% of known asteroids, and an even higher percentage in the outer part of the asteroid belt beyond 2.7 AU, which is dominated by this asteroid type...

 and is probably composed of carbonaceous

Carbonaceous

Carbonaceous is the defining attribute of a substance rich in carbon. Particularly, carbonaceous hydrocarbons are very unsaturated, high-molecular-weight hydrocarbons, having an elevated carbon:hydrogen ratio....

 material.

It was discovered by Auguste Charlois

Auguste Charlois

Auguste Honoré Charlois was a French astronomer who discovered 99 asteroids while working in Nice.His first discovery was the asteroid 267 Tirza in 1887...

 on January 8, 1894 in Nice

Nice

Nice is the fifth most populous city in France, after Paris, Marseille, Lyon and Toulouse, with a population of 348,721 within its administrative limits on a land area of . The urban area of Nice extends beyond the administrative city limits with a population of more than 955,000 on an area of...

. It is named after the Swedish island of Hven, the site of two observatories.

A satellite, 7 km across and designated S/2003 (379) 1, was discovered on August 14, 2003 by Jean-Luc Margot

Jean-Luc Margot

Jean-Luc Margot is a Belgian-born astronomer and a Professor at UCLA. He specializes in planetary sciences. He was awarded the H. C. Urey Prize by the American Astronomical Society in 2004....

 using the Keck II adaptive optics telescope at Mauna Kea

Mauna Kea

Mauna Kea is a volcano on the island of Hawaii. Standing above sea level, its peak is the highest point in the state of Hawaii. However, much of the mountain is under water; when measured from its oceanic base, Mauna Kea is over tall—significantly taller than Mount Everest...

. The moon orbits 3400±11 km away in 80.8±0.36 d with an eccentricity of 0.334±0.075 http://www.johnstonsarchive.net/astro/astmoons/am-00379.html.

External links

• Orbital simulation from JPL (Java) / Ephemeris
• Orbits of Binary Asteroids with Adaptive Optics (VLT
  Very Large Telescope
  The Very Large Telescope is a telescope operated by the European Southern Observatory on Cerro Paranal in the Atacama Desert of northern Chile. The VLT consists of four individual telescopes, each with a primary mirror 8.2m across, which are generally used separately but can be used together to...
  
  images)