astro.wikisort.org - Asteroid
916 America is a minor planet orbiting the Sun in the main belt between Mars and Jupiter.
| Discovery[1] | |
|---|---|
| Discovered by | G. N. Neujmin |
| Discovery date | 7 August 1915 |
| Designations | |
MPC designation | (1915) S1 |
| Pronunciation | /əˈmɛrɪkə/[2] |
Named after | United States of America |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 92.21 yr (33681 days) |
| Aphelion | 2.9247 AU (437.53 Gm) |
| Perihelion | 1.8037 AU (269.83 Gm) |
Semi-major axis | 2.3642 AU (353.68 Gm) |
| Eccentricity | 0.23706 |
Orbital period (sidereal) | 3.64 yr (1327.8 d) |
Mean anomaly | 245.58° |
Mean motion | 0° 16m 16.068s / day |
| Inclination | 11.093° |
Longitude of ascending node | 329.79° |
Argument of perihelion | 41.772° |
| Physical characteristics | |
Mean radius | 16.615±0.65 km |
Synodic rotation period | 38 h (1.6 d) |
Geometric albedo | 0.0530±0.004 |
Absolute magnitude (H) | 11.4 |
It was discovered on 7 August 1915 by the Russian astronomer Grigory Nikolaevich Neujmin at Simeis, Russian Empire.[1] Originally designated 916ΣI, it was renamed '916 America' on 24 February 1923 after the Council of Astronomers at Pulkovo Observatory decided to commemorate "the friendly relations of the astronomical observatories and astronomers".[3] Another possible reason for the name was as a mark of appreciation for the help given during the 1921 Russian famine by the American Relief Administration under the later President Herbert Hoover.[4]
In 1986, assuming that the asteroid was of S-type and that it had a diameter of 15 km, the rotational period was measured to be 38 hours.[5] Observations by the Infrared Astronomical Satellite have since shown that it has a diameter of 33.2±1.3 km, with an absolute magnitude of 11.20 and an albedo of 0.053±0.004.[1]
References
- "JPL Small-Body Database Browser - 916 America (1915 S1)". Retrieved 2 May 2016.
- Noah Webster (1884) A Practical Dictionary of the English Language
- (1923). Popular Astronomy, volume 31, page 364.
- Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names. Springer. p. 82. ISBN 3-540-00238-3.
- Dimartino, M. (1986). "A Photoelectric Program for Small and Unusual Asteroids". Asteroids, Comets, Meteors II; Proceedings of the International Meeting, Uppsala, Sweden, June 3–6, 1985. Uppsala, Sweden, Astronomiska Observatoriet: 81. Bibcode:1986acm..proc...81D.
External links
- 916 America at AstDyS-2, Asteroids—Dynamic Site
- 916 America at the JPL Small-Body Database
На других языках
[de] (916) America
(916) America ist ein Asteroid des Hauptgürtels, der am 7. August 1915 vom russischen Astronomen Grigori N. Neujmin entdeckt wurde.- [en] 916 America
[es] (916) America
(916) America es un asteroide perteneciente al cinturón de asteroides descubierto el 7 de agosto de 1915 por Grigori Nikoláievich Neúimin desde el observatorio de Simeiz en Crimea. Está nombrado por el continente de América.[2][ru] (916) Америка
(916) Аме́рика (лат. America) — астероид главного астероидного пояса. Открыт 7 августа 1915 г. российским (советским) астрономом Григорием Неуйминым в Симеизской обсерватории, в Крыму. Астероид, вначале называвшийся 916ΣI, 23 марта 1923 г. по инициативе Пулковской обсерватории был переименован в "Америку", чтобы подчеркнуть дружественные отношения между астрономическими обсерваториями и астрономами.Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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