283 Emma
Template:Short description Template:Use dmy dates Script error: No such module "infobox".Script error: No such module "Check for unknown parameters".
283 Emma is a large asteroid of the asteroid belt and the namesake of the Emma family. It was discovered by Auguste Charlois on 8 February 1889, in Nice, France. The reason for its name is unknown.[1]
Measurements made with the IRAS observatory give a diameter of Script error: No such module "val". and a geometric albedo of Script error: No such module "val".. By comparison, the MIPS photometer on the Spitzer Space Telescope gives a diameter of Script error: No such module "val". and a geometric albedo of Script error: No such module "val".. When the asteroid was observed occulting a star, the results showed a diameter of Script error: No such module "val"..[2]
Satellite
A companion for 283 Emma was detected on 14 July 2003 by W. J. Merline et al. using the Keck II telescope and is designated S/2003 (283) 1. The discovery was reported in the International Astronomical Union Circular (IAUC) 8165.[3] The satellite orbits at a semi-major axis of about 581 km with an eccentricity of 0.12.[4] Emma has a Hill sphere with a radius of about 28,000 km.[4]
References
Cite error: <ref> tag with name "jpldata" defined in <references> is not used in prior text.
External links
- Asteroids with Satellites, Robert Johnston, johnstonsarchive.net
- Orbits of Binary Asteroids with Adaptive Optics (VLT images)
- Template:AstDys
- Template:PAGENAMEBASE at the JPL Small-Body DatabaseTemplate:EditAtWikidata
Script error: No such module "Navbox". Script error: No such module "Navbox". Template:Authority control