astro.wikisort.org - Asteroid
Prokne (minor planet designation: 194 Prokne) is a main-belt asteroid that was discovered by German-American astronomer C. H. F. Peters on March 21, 1879, in Clinton, New York, and named after Procne, the sister of Philomela in Greek mythology. Stellar occultations by Prokne have been observed twice, in 1984 from Italy and again in 1999 from Iowa (United States).
| Discovery | |
|---|---|
| Discovered by | C. H. F. Peters, 1879 |
| Discovery date | 21 March 1879 |
| Designations | |
MPC designation | (194) Prokne |
| Pronunciation | /ˈprɒkniː/[1] |
Minor planet category | Main belt |
| Adjectives | Proknean /prɒkˈniːən/[2] |
| Orbital characteristics[3] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 136.76 yr (49950 d) |
| Aphelion | 3.2386 AU (484.49 Gm) |
| Perihelion | 1.9930 AU (298.15 Gm) |
Semi-major axis | 2.6158 AU (391.32 Gm) |
| Eccentricity | 0.23810 |
Orbital period (sidereal) | 4.23 yr (1545.3 d) |
Mean anomaly | 42.282° |
Mean motion | 0° 13m 58.692s / day |
| Inclination | 18.509° |
Longitude of ascending node | 159.32° |
Argument of perihelion | 163.24° |
| Earth MOID | 0.986917 AU (147.6407 Gm) |
| Jupiter MOID | 2.15988 AU (323.113 Gm) |
| TJupiter | 3.295 |
| Physical characteristics | |
| Dimensions | 168.42±4.1 km[3] 170.33±6.92 km[4] |
| Mass | (2.68±0.29)×1018 kg[4] |
Mean density | 1.03±0.16 g/cm3[4] |
Synodic rotation period | 15.679 h (0.6533 d)[3][5] |
Geometric albedo | 0.0528±0.003 |
Spectral type | C |
Absolute magnitude (H) | 7.68 |
Observations from the W. M. Keck Observatory show the asteroid to be around 151 km across, with a size ratio of 1.13±0.06 between the major and minor axes. For comparison, observations by the IRAS observatory gave a diameter of 164 km.[6] The spectrum matches a classification of a C-type asteroid, indicating it has a primitive carbonaceous composition. Judging from radar data, the near surface solid density of the asteroid is 3.6+1.1
−0.9 g cm−3.[7]
Based upon a light curve that was generated from photometric observations of this asteroid at Pulkovo Observatory, it has a rotation period of 15.679±0.001 hours and varies in brightness by 0.16±0.02 in magnitude.[5]
References
- "Procne". Lexico UK English Dictionary. Oxford University Press. Archived from the original on 22 March 2020.
- Harris & Lee (2004) Shakespearean criticism, p. 113
- Yeomans, Donald K., "194 Prokne", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016.
- 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.
- Pilcher, Frederick (October 2011), "Rotation Period Determinations for 11 Parthenope, 38 Leda, 111 Ate 194 Prokne, 217 Eudora, and 224 Oceana", The Minor Planet Bulletin, vol. 38, no. 4, pp. 183–185, Bibcode:2011MPBu...38..183P.
- Marchis, F.; et al. (November 2006), "Shape, size and multiplicity of main-belt asteroids. I. Keck Adaptive Optics survey", Icarus, vol. 185, no. 1, pp. 39–63, Bibcode:2006Icar..185...39M, doi:10.1016/j.icarus.2006.06.001, PMC 2600456, PMID 19081813.
- Magri, C.; et al. (December 2001), "Radar constraints on asteroid regolith compositions using 433 Eros as ground truth", Meteoritics & Planetary Science, vol. 36, no. 12, pp. 1697–1709, Bibcode:2001M&PS...36.1697M, doi:10.1111/j.1945-5100.2001.tb01857.x.
External links
- 194 Prokne at AstDyS-2, Asteroids—Dynamic Site
- 194 Prokne at the JPL Small-Body Database
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На других языках
[de] (194) Prokne
(194) Prokne ist ein Asteroid des Asteroiden-Hauptgürtels, der am 21. März 1879 von Christian Heinrich Friedrich Peters entdeckt wurde.- [en] 194 Prokne
[es] (194) Prokne
(194) Prokne es un asteroide que forma parte del cinturón de asteroides y fue descubierto el 21 de marzo de 1879 por Christian Heinrich Friedrich Peters desde el observatorio Litchfield de Clinton, Estados Unidos. Está nombrado por Procne, un personaje de la mitología griega.[2][ru] (194) Прокна
(194) Прокна (др.-греч. Πρόκνη) — это один из крупнейших астероидов главного пояса, поверхность которого состоит из простейших углеродных соединений. Он был открыт 21 марта 1879 года германо-американским астрономом К. Г. Ф. Петерсом в Клинтоне, США и назван в честь Прокны, сестры Филомены и жены Терея, повелителя фракийского племени одрисов 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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