Achelous (crater)

Infobox feature on Ganymede


caption=The crater to the south is Achelous
name=Achelous
type=Crater
latitude=61.8
N_or_S=N
longitude=11.7
E_or_W=W
diameter=40.0 km
eponym=Achelous

Achelous is a relatively fresh crater on Ganymede adjacent to the similarly-sized Gula. It has an outer lobate ejecta deposit extending about a crater radius from the rim.

A characteristic feature of both craters, almost identical in size, is the "pedestal" - an outward-facing, relatively gently sloped scarp that terminates the continuous ejecta blanket. Similar features may be seen in ejecta blankets of Martian craters, suggesting impacts into a volatile (ice)-rich target material. Furthermore, both craters appear crisp and feature terraces. Gula has a prominent central peak; Achelous instead may show the remnant of a collapsed central peak or a central pit that is not fully formed. On lower-resolution images taken under higher sun illumination angle, both craters are shown to have extended bright rays, especially Achelous, which demonstrates that these two craters are younger than the respective surrounding landscape.


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Ganymede (moon) — Ganymede Image of Ganymede s anti Jovian hemisphere taken by the Galileo probe. Lighter surfaces, such as in recent impacts, grooved terrain and the whitish north polar cap at upper right, are enriched in water ice. Discovery …   Wikipedia

  • Cráteres de Ganímedes — Anexo:Cráteres de Ganímedes Saltar a navegación, búsqueda Ganímedes es el satélite natural de mayor tamaño del Sistema Solar, y posee muchos cráteres de impacto en su superficie, algunos de los cuales han sido bautizados. La mayoría de los… …   Wikipedia Español

  • Anexo:Cráteres de Ganímedes — Ganímedes es el satélite natural de mayor tamaño del Sistema Solar, y posee muchos cráteres de impacto en su superficie, algunos de los cuales han sido bautizados. La mayoría de los nombres de estos provienen de la mitología egipcia, mesopotámica …   Wikipedia Español

  • Artemis — Infobox Greek deity Caption = The Diana of Versailles , a Roman copy of a Greek sculpture by Leochares. (Louvre Museum) Name = Artemis God of = Goddess of the Hunt, Forests and Hills Abode = Symbol = Bow and Arrows Consort = Parents = Zeus and… …   Wikipedia

  • List of auxiliaries of the United States Navy — This is a list of auxiliaries of the United States Navy. It covers the various types of ships that support the frontline combat vessels of the United States Navy. See also: * United States Naval Fleet Auxiliary Force * United States Coast Guard… …   Wikipedia

  • List of World War II topics (U) — # U 571 (film) # U A # U boat Front Clasp # U boat War Badge # U Boote westwärts # U Man # U.S. British Staff Conference (ABC 1) # U.S. 20th Air Base Group # U.S. 5th Interceptor Command # U.S. Army Forces Far East # U.S. Army Forces in the… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”