Alternative names 1902 JS Aphelion 3.6625 AU (547.90 Gm) Discovered 7 September 1902 Orbits Sun Asteroid group Asteroid belt | Discovery date 7 September 1902 Observation arc 113.61 yr (41495 d) Perihelion 2.5706 AU (384.56 Gm) Inclination 15.177° Discoverer Max Wolf | |
Similar 417 Suevia, 484 Pittsburghia, 528 Rezia, 509 Iolanda, 499 Venusia | ||
493 Griseldis is a fairly dark main-belt asteroid 46 km in diameter.
Overview
Griseldis is suspected of being impacted by another asteroid in March 2015. 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. 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. Also, no activity was seen in archived images from 2010 or 2012 according to a University of Hawaii press release.
References
493 Griseldis Wikipedia(Text) CC BY-SA