astro.wikisort.org - Asteroid
Griseldis (minor planet designation: 493 Griseldis) is a fairly dark main-belt asteroid 46 km in diameter.[1]
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg |
| Discovery date | 7 September 1902 |
| Designations | |
MPC designation | (493) Griseldis |
| Pronunciation | /ɡrɪˈzɛldɪs/ |
Alternative designations | 1902 JS |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 113.61 yr (41495 d) |
| Aphelion | 3.6625 AU (547.90 Gm) |
| Perihelion | 2.5706 AU (384.56 Gm) |
Semi-major axis | 3.1165 AU (466.22 Gm) |
| Eccentricity | 0.17518 |
Orbital period (sidereal) | 5.50 yr (2009.6 d) |
Mean anomaly | 193.229° |
Mean motion | 0° 10m 44.904s / day |
| Inclination | 15.177° |
Longitude of ascending node | 357.360° |
Argument of perihelion | 47.140° |
| Physical characteristics | |
| Dimensions | 46.41±4.1 km[1] |
Synodic rotation period | 51.940 h (2.1642 d)[1] |
Geometric albedo | 0.0622±0.013[1] |
Spectral type | P[2] |
Apparent magnitude | 14.2 to 17.5 |
Absolute magnitude (H) | 10.9[1] |
Overview
Griseldis is suspected of having been impacted by another asteroid in March 2015.[2][3] Other asteroids suspected of an asteroid-on-asteroid impact include P/2010 A2 and 596 Scheila which also showed extended features (tails).
The asteroid was observed with the Subaru telescope (8m), the Magellan Telescopes (6.5), and also the University of Hawaii 2.2 m telescope in early 2015.[4] The activity was detected on the Subaru in late March, and confirmed on the Magellan telescope a few days later (which is in Chile), but no activity was seen by April.[4] Also, no activity was seen in archived images from 2010 or 2012 according to a University of Hawaii press release.[4]
References
- "JPL Small-Body Database Browser: 493 Griseldis (1902 JS)". Jet Propulsion Laboratory. Retrieved 9 May 2016.
- Tholen, David J.; Sheppard, Scott S.; Trujillo, Chad A. (2015). "Evidence for an Impact Event on (493) Griseldis". American Astronomical Society: 414.03. Bibcode:2015DPS....4741403T.
- "Main-belt asteroid shows evidence of march collision". Phys.org. 12 November 2015. Retrieved 13 November 2015.
- Main-Belt Asteroid Shows Evidence of March Collision
External links
- 493 Griseldis at AstDyS-2, Asteroids—Dynamic Site
- 493 Griseldis 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] (493) Griseldis
(493) Griseldis ist ein Asteroid des Hauptgürtels, der am 7. September 1902 vom deutschen Astronomen Max Wolf in Heidelberg entdeckt wurde.- [en] 493 Griseldis
[es] (493) Griseldis
(493) Griseldis es un asteroide perteneciente al cinturón de asteroides descubierto el 7 de septiembre de 1902 por Maximilian Franz Wolf desde el observatorio de Heidelberg-Königstuhl, Alemania. Está nombrado por Griseldis, un personaje del Decamerón del escritor italiano Giovanni Boccaccio (1313-1373).[2][ru] (493) Гризельда
(493) Гризельда (нем. Griseldis) — астероид главного пояса, который был открыт 7 сентября 1902 года немецким астрономом Максом Вольфом в обсерватории Хайдельберг и назван в честь Гризельды, персонажа фольклора и европейской литературы[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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