Discovered by A. Borrelly, 1879 Minor planet category Main belt Aphelion 3.0193 AU (451.68 Gm) Discovered 13 June 1879 Spectral type S-type asteroid Discovery site Marseille Observatory | Discovery date 13 June 1879 Observation arc 131.26 yr (47944 d) Perihelion 1.8986 AU (284.03 Gm) Orbits Sun Discoverer Alphonse Borrelly Asteroid group Asteroid belt | |
Similar 230 Athamantis, 193 Ambrosia, 188 Menippe, 196 Philomela, 132 Aethra | ||
198 ampella top 6 facts
198 Ampella is a Main belt asteroid that was discovered by Alphonse Borrelly on June 13, 1879. The name seems to be the feminine form of Ampelos, a satyr and good friend of Dionysus in Greek mythology. It could also derive from the Ampelose (plural of Ampelos), a variety of hamadryad. It is an S-type asteroid.
So far Ampella has been observed occulting a star once, on November 8, 1991, from New South Wales, Australia.
This asteroid has been resolved by the W. M. Keck Observatory, resulting in a size estimate of 53 km. It is oblate in shape, with a size ratio of 1.22 between the major and minor axes. Measurements from the IRAS observatory gave a similar size estimate of 57 km. Photometric measurements made in 1993 give a rotation period of 10.38 hours.