Английская Википедия:302 Clarissa
Шаблон:Short description Шаблон:Use dmy dates Шаблон:Infobox planet
Clarissa (minor planet designation: 302 Clarissa) is a typical main belt asteroid.[1] The asteroid was discovered by the French astronomer Auguste Charlois on 14 November 1890 in Nice. The origin of the name is unknown.[2] In 1991, 302 Clarissa was being considered as a possible fly-by target for the Cassini spacecraft, but was later removed from consideration.[3]
This body is orbiting the Sun with a period of Шаблон:Convert and an eccentricity (ovalness) of 0.11. The orbital plane is inclined by 3.4° to the plane of the ecliptic. There are no major planetary resonances near the orbit of 302 Clarissa. It has a retrograde spin with a rotation period of 14.4797 hours. Stellar occultation data provides a size estimate of Шаблон:Val,[4] while IRAS data gives a diameter of Шаблон:Val. It is classified as a F-type asteroid and is probably composed of carbonaceous material.[1]
302 Clarissa provides the eponym for a small collisional asteroid family of mostly C-type asteroids. This group consists of 179 bodies with orbits clustered around 302 Clarissa. The family has a small extend of semimajor axis values, suggesting this is a young group; its estimated age is Шаблон:Val Myr. 70–90% of the objects in this family have a retrograde spin, suggesting the parent body may have possessed a similar rotation.[4] This family is one of five that are candidate sources for the near Earth asteroids 101955 Bennu and 162173 Ryugu.[5]
Spacecraft visits
At present, Clarissa has not been visited by any spacecraft. As of 1991, mission planning for the Cassini–Huygens spacecraft included a flyby (spaceflight) of Clarissa while leaving the inner solar system in November 1998,[6] however due to delays, the launch of Cassini-Huygens was moved from November 1995 to October 1997, thus negating the option to pass near Clarissa. Cassini-Huygens passed by asteroid 2685 Masursky on 23 January 2000 instead.
References
External links
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Authority control
- ↑ 1,0 1,1 Ошибка цитирования Неверный тег
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<ref>; для сносокSchmadel2013не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокChevreton_et_al_1993не указан текст - ↑ 4,0 4,1 Ошибка цитирования Неверный тег
<ref>; для сносокLowry_et_al_2020не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокMorate2018не указан текст - ↑ Outward to the Beginning: the CRAF and Cassini Missions of the Mariner Mark 2 Program; NASA Contractor Report CR-183133, 1 June 1988
- Английская Википедия
- F-type asteroids (Tholen)
- Clarissa asteroids
- Discoveries by Auguste Charlois
- Named minor planets
- Astronomical objects discovered in 1890
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