astro.wikisort.org - Asteroid
Terpsichore (minor planet designation: 81 Terpsichore) is a large and very dark main-belt asteroid. It has most probably a very primitive carbonaceous composition. It was found by the prolific comet discoverer Ernst Tempel on September 30, 1864.[4] It is named after Terpsichore, the Muse of dance in Greek mythology.
| Discovery | |
|---|---|
| Discovered by | Ernst Wilhelm Tempel |
| Discovery date | September 30, 1864 |
| Designations | |
MPC designation | (81) Terpsichore |
| Pronunciation | /tɜːrpˈsɪxərɛ/[1] |
Named after | Terpsichore |
Minor planet category | Main belt |
| Adjectives | Terpsichorean /tɜːrpsɪxəˈriːən/[1] |
| Orbital characteristics | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 516.955 Gm (3.456 AU) |
| Perihelion | 337.132 Gm (2.254 AU) |
Semi-major axis | 427.044 Gm (2.855 AU) |
| Eccentricity | 0.211 |
Orbital period (sidereal) | 1761.647 d (4.82 a) |
Average orbital speed | 17.43 km/s |
Mean anomaly | 149.581° |
| Inclination | 7.809° |
Longitude of ascending node | 1.497° |
Argument of perihelion | 50.234° |
| Physical characteristics | |
| Dimensions | 121.77 ± 2.34 km[2] |
| Mass | (6.19 ± 5.31) × 1018 kg[2] |
Mean density | 6.54 ± 5.62 g/cm3[2] |
Synodic rotation period | 10.943 hr |
Geometric albedo | 0.051 [3] |
Spectral type | C |
Absolute magnitude (H) | 8.48 |
Photometric observations of the minor planet in 2011 gave a rotation period of 10.945±0.001 h with an amplitude of 0.09±0.01 in magnitude. This result is consistent with previous determinations.[5] Two stellar occultation events involving this asteroid were observed from multiple sites in 2009. The resulting chords matched a smooth elliptical cross-section with dimensions of 134.0±4.0 km × 108.9±0.7 km.[6]
In popular culture
A space station orbiting 81 Terpsichore is the main setting in the science fiction story The Dark Colony (Asteroid Police Book 1) by Richard Penn.
References
- "Terpsichore". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
- Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, vol. 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
- Asteroid Data Sets Archived 2009-12-17 at the Wayback Machine
- Tempel, M. (November 1864), "Minor Planet 81 Terpsichore discovered", Monthly Notices of the Royal Astronomical Society, 25: 31, Bibcode:1864MNRAS..25...31T.
- Pilcher, Frederick (July 2011), "Rotation Period Determinations for 28 Bellona, 81 Terpsichore, 126 Velleda 150 Nuwa, 161 Athor, 419 Aurelia, and 632 Pyrrha", The Minor Planet Bulletin, 38 (3): 156−158, Bibcode:2011MPBu...38..156P.
- Timerson, Brad; Durech, J.; Pilcher, F.; et al. (October 2010), "Occultations by 81 Terpsichore and 694 Ekard in 2009 at Different Rotational Phase Angles", The Minor Planet Bulletin, 37 (4): 140−142, Bibcode:2010MPBu...37..140T.
External links
- 81 Terpsichore at AstDyS-2, Asteroids—Dynamic Site
- 81 Terpsichore at the JPL Small-Body Database
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На других языках
[de] (81) Terpsichore
(81) Terpsichore ist ein Asteroid des Hauptgürtels, der am 30. September 1864 von dem deutschen Astronomen Ernst Wilhelm Leberecht Tempel entdeckt wurde.[2] Der Asteroid war Tempels vierte Entdeckung im Asteroidengürtel.- [en] 81 Terpsichore
[es] (81) Terpsichore
(81) Terpsichore es un asteroide perteneciente al cinturón de asteroides descubierto por Ernst Wilhelm Leberecht Tempel el 30 de septiembre de 1864 desde el observatorio de Marsella, Francia. Está nombrado por Terpsícore, una diosecilla de la mitología griega.[2][ru] (81) Терпсихора
(81) Терпсихора (лат. Terpsichore) — астероид главного пояса, который принадлежит к тёмному спектральному классу C. Он был открыт 30 сентября 1864 года немецким астрономом Эрнстом Темпелем в Марсельской обсерватории и назван в честь Терпсихоры, музы танца в древнегреческой мифологии[1].Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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