Английская Википедия:4185 Phystech
4185 Phystech, provisional designation Шаблон:Mp, is a Florian or background asteroid from the inner regions of the asteroid belt, approximately Шаблон:Convert in diameter. It was discovered on 4 March 1975, by Soviet astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula.[1] The presumed S-type asteroid has a rotation period of 4.67 hours. It is named in honor of the Moscow Institute of Physics and Technology ("PhysTech") on its 50th anniversary.[1]
Orbit and classification
Phystech is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements.[2][3] Based on osculating Keplerian orbital elements, the asteroid has also been classified as a member of the Flora family (Шаблон:Small), a giant asteroid family and the largest family of stony asteroids in the main-belt.[4]
It orbits the Sun in the inner asteroid belt at a distance of 2.0–2.4 AU once every 3 years and 4 months (1,206 days; semi-major axis of 2.22 AU). Its orbit has an eccentricity of 0.10 and an inclination of 2° with respect to the ecliptic.[5] The body's observation arc begins with a precovery taken at Palomar Observatory in October 1953, more than 21 years prior to its official discovery observation at Nauchnij.[1]
Physical characteristics
Phystech is an assumed stony S-type asteroid, based on its family classification.[4]
Rotation period
In March and April 2008, two rotational lightcurves of Phystech were obtained from photometric observations by American astronomers at LPL and Calvin College Шаблон:Obscode. Lightcurve analysis gave a well-defined rotation period of 4.66883 and 4.66904 hours with a brightness amplitude of 0.53 and 0.41 magnitude, respectively (Шаблон:Small).[6]
Diameter and albedo
The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, the parent body of the Flora family – and calculates a diameter of 5.93 kilometers based on an absolute magnitude of 13.3.[4]
Naming
This minor planet was named after the Moscow Institute of Physics and Technology (informally: "PhysTech"; Физтех) on the occasion of its 50th anniversary in 1996, based on a proposal by the Institute of Theoretical Astronomy (ITA) in Saint Petersburg, Russia.[1] The official naming citation was published by the Minor Planet Center on 22 February 1997 (Шаблон:Small).[7]
References
External links
- Asteroid Lightcurve Database (LCDB), query form (info Шаблон:Webarchive)
- Dictionary of Minor Planet Names, Google books
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- Шаблон:AstDys
- Шаблон:JPL small body
Шаблон:Use dmy dates Шаблон:Minor planets navigator Шаблон:Small Solar System bodies
- ↑ 1,0 1,1 1,2 1,3 Ошибка цитирования Неверный тег
<ref>; для сносокMPC-objectне указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокFerretне указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокAstDys-objectне указан текст - ↑ 4,0 4,1 4,2 Ошибка цитирования Неверный тег
<ref>; для сносокlcdbне указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокjpldataне указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокDykhuis-2016не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокMPC-Circulars-Archiveне указан текст
- Английская Википедия
- Background asteroids
- Discoveries by Tamara Mikhaylovna Smirnova
- Named minor planets
- Astronomical objects discovered in 1975
- Страницы, где используется шаблон "Навигационная таблица/Телепорт"
- Страницы с телепортом
- Википедия
- Статья из Википедии
- Статья из Английской Википедии
- Страницы с ошибками в примечаниях
