::(197) Arete
::concepts
Redirect::
{{#invoke:Infobox|infobox}}
197 Arete is an asteroid in the asteroid belt. It has a very bright surface, unusually bright even for a rocky S-type asteroid.
It was discovered by J. Palisa on May 21, 1879, and named after Arete, the mother of Nausicaa in Homer's The Odyssey.<ref>{{#invoke:citation/CS1|citation |CitationClass=book }}</ref> Every 18 years, this asteroid approaches within 0.04 AU of 4 Vesta. During these encounters, Vesta causes a gravitational perturbation of Arete, allowing the mass of Vesta to be directly determined.<ref name=science160_3825/>
Photometric observations during 1984 showed a rotation period of 6.54 ± 0.02 hours and a brightness variation of 0.10 ± 0.01 in magnitude. The light curve shows "four well defined extrema with two asymmetric maxima".<ref name="aass67_1_95"/>
(197) Arete sections
Intro
| PREVIOUS: Intro | NEXT: Intro |
| << | >> |
