astro.wikisort.org - Asteroid
Agathe (minor planet designation: 228 Agathe) is a stony main belt asteroid, about 9 kilometers in diameter. It was discovered by Johann Palisa on 19 August 1882 at Vienna Observatory, Austria. Photometric observations during 2003 showed a rotation period of 6.48 ± 0.01 hours with a brightness variation of 0.27 ± 0.03 in magnitude. An earlier study yielded results that are consistent with these estimates.[3] Agathe is the lowest numbered asteroid to have an Earth-MOID as low as 0.657 AU (98.3 million km).[1] On 23 August 2029 the asteroid will be 0.659 AU (98.6 million km) from Earth.
| Discovery [1] | |
|---|---|
| Discovered by | J. Palisa |
| Discovery site | Vienna Observatory |
| Discovery date | 19 August 1882 |
| Designations | |
MPC designation | (228) Agathe |
Named after | daughter of astronomer Theodor v. Oppolzer [2] |
Alternative designations | A882 QA |
Minor planet category | main-belt |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 110.45 yr (40343 d) |
| Aphelion | 2.7345 AU (409.08 Gm) |
| Perihelion | 1.6680 AU (249.53 Gm) |
Semi-major axis | 2.2013 AU (329.31 Gm) |
| Eccentricity | 0.24224 |
Orbital period (sidereal) | 3.27 yr (1192.9 d) |
Mean anomaly | 359.08° |
Mean motion | 0° 18m 6.408s / day |
| Inclination | 2.5363° |
Longitude of ascending node | 313.36° |
Argument of perihelion | 19.121° |
| Earth MOID | 0.657123 AU (98.3042 Gm) |
| Mars MOID | 0.2931 AU (43.85 Gm) |
| Jupiter MOID | 2.62486 AU (392.673 Gm) |
| TJupiter | 3.625 |
| Physical characteristics | |
| Dimensions | 9.30±0.8 km |
Synodic rotation period | 6.484 h (0.2702 d) |
Geometric albedo | 0.2082±0.043 |
Spectral type | B–V = 0.918 U–B = 0.596 S (Tholen), S (SMASS) |
Absolute magnitude (H) | 12.48 |
Agathe was named after the youngest daughter of Austrian astronomer Theodor von Oppolzer (1841–1886), professor of astronomy in Vienna.[2]
References
- "JPL Small-Body Database Browser: 228 Agathe" (2015-06-18 last obs.). Jet Propulsion Laboratory. Retrieved 12 May 2016.
- Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (228) Agathe. Springer Berlin Heidelberg. p. 35. doi:10.1007/978-3-540-29925-7_229. ISBN 978-3-540-29925-7.
- Cooney, Walter R., Jr. (March 2005), "Lightcurve results for minor planets 228 Agathe, 297 Caecilia, 744 Aguntina 1062 Ljuba, 1605 Milankovitch, and 3125 Hay", The Minor Planet Bulletin, 32 (1): 15–16, Bibcode:2005MPBu...32...15C.
External links
- Dictionary of Minor Planet Names, Google books
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- 228 Agathe at AstDyS-2, Asteroids—Dynamic Site
- 228 Agathe at the JPL Small-Body Database
 | This article about an asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it. |
На других языках
[de] (228) Agathe
(228) Agathe ist ein Asteroid des inneren Asteroiden-Hauptgürtels, der am 19. August 1882 von Johann Palisa am Observatorium von Wien entdeckt wurde. Agathe war die Tochter des Astronomen Theodor von Oppolzer.- [en] 228 Agathe
[es] (228) Agathe
(228) Agathe es un asteroide perteneciente al cinturón de asteroides descubierto el 19 de agosto de 1882 por Johann Palisa desde el observatorio de Viena, Austria. Está nombrado en honor de una de las hijas del astrónomo austriaco Theodor von Oppolzer (1841-1886).[2][ru] (228) Агата
(228) Агата (нем. Agathe) — небольшой астероид главного пояса, который был обнаружен 19 августа 1882 года австрийским астрономом Иоганном Пализой[1][2] в обсерватории города Вена и названа в честь дочери австрийского астронома Теодора ОппольцераДругой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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