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493 Griseldis

January 01, 1970

Griseldis (minor planet designation: 493 Griseldis) is a fairly dark main-belt asteroid 46 km in diameter.[1]

493 Griseldis
Discovery
Discovered byMax Wolf
Discovery siteHeidelberg
Discovery date7 September 1902
Designations
(493) Griseldis
Pronunciation/ɡrɪˈzɛldɪs/
1902 JS
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc113.61 yr (41495 d)
Aphelion3.6625 AU (547.90 Gm)
Perihelion2.5706 AU (384.56 Gm)
3.1165 AU (466.22 Gm)
Eccentricity0.17518
5.50 yr (2009.6 d)
193.229°
0° 10m 44.904s / day
Inclination15.177°
357.360°
47.140°
Physical characteristics
Dimensions46.41±4.1 km[1]
51.940 h (2.1642 d)[1]
0.0622±0.013[1]
P[2]
14.2 to 17.5
10.9[1]

Overview edit

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 354P/LINEAR 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]

See also edit

References edit

  1. ^ a b c d e f "JPL Small-Body Database Browser: 493 Griseldis (1902 JS)". Jet Propulsion Laboratory. Retrieved 9 May 2016.
  2. ^ a b 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.
  3. ^ "Main-belt asteroid shows evidence of march collision". Phys.org. 12 November 2015. Retrieved 13 November 2015.
  4. ^ a b c Main-Belt Asteroid Shows Evidence of March Collision

External links edit

  • 493 Griseldis at AstDyS-2, Asteroids—Dynamic Site
    • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
  • 493 Griseldis at the JPL Small-Body Database  
    • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters


 

This article about an asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it.

January 01, 1970
griseldis, griseldis, minor, planet, designation, fairly, dark, main, belt, asteroid, diameter, discoverydiscovered, bymax, wolfdiscovery, siteheidelbergdiscovery, date7, september, 1902designationsmpc, designation, griseldispronunciation, alternative, designa. Griseldis minor planet designation 493 Griseldis is a fairly dark main belt asteroid 46 km in diameter 1 493 GriseldisDiscoveryDiscovered byMax WolfDiscovery siteHeidelbergDiscovery date7 September 1902DesignationsMPC designation 493 GriseldisPronunciation ɡ r ɪ ˈ z ɛ l d ɪ s Alternative designations1902 JSOrbital characteristics 1 Epoch 31 July 2016 JD 2457600 5 Uncertainty parameter 0Observation arc113 61 yr 41495 d Aphelion3 6625 AU 547 90 Gm Perihelion2 5706 AU 384 56 Gm Semi major axis3 1165 AU 466 22 Gm Eccentricity0 17518Orbital period sidereal 5 50 yr 2009 6 d Mean anomaly193 229 Mean motion0 10m 44 904s dayInclination15 177 Longitude of ascending node357 360 Argument of perihelion47 140 Physical characteristicsDimensions46 41 4 1 km 1 Synodic rotation period51 940 h 2 1642 d 1 Geometric albedo0 0622 0 013 1 Spectral typeP 2 Apparent magnitude14 2 to 17 5Absolute magnitude H 10 9 1 Contents 1 Overview 2 See also 3 References 4 External linksOverview editGriseldis is suspected of having been impacted by another asteroid in March 2015 2 3 Other asteroids suspected of an asteroid on asteroid impact include 354P LINEAR 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 See also edit354P LINEAR 596 Scheila P 2016 G1 PanSTARRS References edit a b c d e f JPL Small Body Database Browser 493 Griseldis 1902 JS Jet Propulsion Laboratory Retrieved 9 May 2016 a b 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 a b c Main Belt Asteroid Shows Evidence of March CollisionExternal links edit493 Griseldis at AstDyS 2 Asteroids Dynamic Site Ephemeris Observation prediction Orbital info Proper elements Observational info 493 Griseldis at the JPL Small Body Database nbsp Close approach Discovery Ephemeris Orbit diagram Orbital elements Physical parameters nbsp This article about an asteroid native to the asteroid belt is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title 493 Griseldis amp oldid 1204101436, wikipedia, wiki, book, books, library,

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