Griseldis (

minor planet designation A formal minor-planet designation is, in its final form, a number–name combination given to a minor planet (asteroid, centaur, trans-Neptunian object and dwarf planet but not comet). Such designation always features a leading number (catalog or ...

: 493 Griseldis) is a fairly dark

main-belt asteroid The asteroid belt is a torus-shaped region in the Solar System, located roughly between the orbits of the planets Jupiter and Mars. It contains a great many solid, irregularly shaped bodies, of many sizes, but much smaller than planets, called ...

46 km in diameter.

Overview

Griseldis is suspected of having been impacted by another asteroid in March 2015. Other asteroids suspected of an asteroid-on-asteroid impact include 354P/LINEAR and

596 Scheila Scheila ( minor planet designation: 596 Scheila) is a main-belt asteroid and main-belt comet orbiting the Sun. It was discovered on 21 February 1906 by August Kopff from Heidelberg. Kopff named the asteroid after a female English student with w ...

which also showed extended features (tails). The asteroid was observed with the

Subaru Telescope is the telescope of the National Astronomical Observatory of Japan, located at the Mauna Kea Observatory on Hawaii. It is named after the open star cluster known in English as the Pleiades. It had the largest monolithic primary mirror in the wo ...

(8m), the

Magellan Telescopes The Magellan Telescopes are a pair of optical telescopes located at Las Campanas Observatory in Chile. The two telescopes are named after the astronomer Walter Baade and the philanthropist Landon T. Clay. First light for the telescopes was on Se ...

(6.5), and also the University of Hawaii 2.2 m telescope in early 2015.Main-Belt Asteroid Shows Evidence of March Collision
/ref> 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

External links

* * Background asteroids Active asteroids Griseldis 19020907 Griseldis Small-asteroids collision 20150315 {{Beltasteroid-stub

Overview

See also

References

External links