Английская Википедия:3198 Wallonia
Шаблон:Use dmy dates Шаблон:Infobox planet
3198 Wallonia, provisional designation Шаблон:Mp, is a stony asteroid and sizable Mars-crosser from the inner regions of the asteroid belt, approximately Шаблон:Convert in diameter. It was discovered on 30 December 1981, by Belgian astronomer François Dossin at the Haute-Provence Observatory in France.[1] The S/K-type asteroid has a rotation period of 7.5 hours. It was named after the French speaking region of Wallonia in Belgium.[1]
Orbit and classification
Wallonia is a Mars-crossing asteroid, crossing the orbit of Mars at 1.666 AU. Members of this dynamically unstable group are located between the main belt and near-Earth populations. It orbits the Sun at a distance of 1.7–2.7 AU once every 3 years and 3 months (1,177 days; semi-major axis of 2.18 AU). Its orbit has an eccentricity of 0.24 and an inclination of 18° with respect to the ecliptic.[2] The body's observation arc begins with its official discovery observation.[1]
Naming
This minor planet was named after Wallonia, the French speaking part of Belgium, where the discoverer was born and where the Institut d’Astrophysique et Géophysique at the University of Liège is located.[1] The official naming citation was published by the Minor Planet Center on 22 June 1986 (Шаблон:Small).[3]
Physical characteristics
In the SMASS classification, Wallonia is a common, stony S-type asteroid.[2] In the Bus-DeMeo taxonomy it is a Svw-type, while In both the Tholen- and SMASS-like taxonomy of the Small Solar System Objects Spectroscopic Survey (S3OS2), Wallonia is a K-type asteroid.[4][5]
Rotation period
In April 2008, a rotational lightcurve of Wallonia was obtained from photometric observations by Brian Warner at the Palmer Divide Observatory in Colorado, United States. Lightcurve analysis gave a rotation period of Шаблон:Val hours with a brightness amplitude of 0.57 magnitude (Шаблон:Small).[6]Шаблон:Efn French amateur astronomer René Roy determined a very similar period of Шаблон:Val and an amplitude of 0.38 in April 2005 (Шаблон:Small).[7]
Diameter and albedo
The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a stony asteroid of 0.20 and calculates a diameter of 7.13 kilometers based on an absolute magnitude of 13.1.[8] A generic magnitude-to-diameter conversion for an albedo of 0.20 also gives a diameter of 7.1 kilometers.[9]
This makes Wallonia one of the largest mid-sized Mars-crossing asteroids comparable with 1065 Amundsenia (9.75 km), 1139 Atami (9.35 km), 1474 Beira (14.9 km), 1727 Mette (5.44 km), 1131 Porzia (7.13 km), 1235 Schorria (5.55 km), 985 Rosina (8.18 km), 1310 Villigera (15.24 km) and 1468 Zomba (7 km), but far smaller than the largest members of this dynamical group, namely, 132 Aethra, 323 Brucia (former), 1508 Kemi, 2204 Lyyli and 512 Taurinensis, which are all larger than 20 kilometers in diameter.
Notes
References
External links
- Spectral properties of Mars-crossers and near-Earth objects. Results of the S3OS2 survey
- Asteroid Lightcurve Database (LCDB), query form (info Шаблон:Webarchive)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- Шаблон:AstDys
- Шаблон:JPL small body
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Authority control
- ↑ 1,0 1,1 1,2 1,3 Ошибка цитирования Неверный тег
<ref>
; для сносокMPC-object
не указан текст - ↑ 2,0 2,1 Ошибка цитирования Неверный тег
<ref>
; для сносокjpldata
не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>
; для сносокMPC-Circulars-Archive
не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>
; для сносокFerret
не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>
; для сносокLazzaro-2004
не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>
; для сносокWarner-2008m
не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>
; для сносокgeneva-obs
не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>
; для сносокlcdb
не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>
; для сносокh
не указан текст
- Английская Википедия
- Mars-crossing asteroids
- Discoveries by François Dossin
- Named minor planets
- S-type asteroids (SMASS)
- Astronomical objects discovered in 1981
- Страницы, где используется шаблон "Навигационная таблица/Телепорт"
- Страницы с телепортом
- Википедия
- Статья из Википедии
- Статья из Английской Википедии
- Страницы с ошибками в примечаниях