Grimaldi (crater)


Grimaldi (crater)

lunar crater data
latitude=5.2
N_or_S=S
longitude=68.6
E_or_W=W
diameter=222 km
depth=2.7 km
colong=67
eponym=Francesco M. Grimaldi

Grimaldi is a large basin located near the western limb of the Moon. It lies to the southwest of the Oceanus Procellarum, and southeast of Riccioli crater. Between Oceanus Procellarum is the Damoiseau crater, and to the north is Lohrmann crater.

The inner wall of Grimaldi has been so heavily worn and eroded by subsequent impacts that it forms a low, irregular ring of hills, ridges and peaks, rather than a typical crater rim. However there are peaks remaining that reach heights of over 2 kilometers. The floor is the most notable feature of this crater, forming a flat, relatively smooth and featureless surface with a particularly low albedo. The dark shade of the floor contrasts with the brighter surroundings, making the crater easy to locate. The approximate diameter of the inner rim is 140 kilometers.

Beyond the basin are the scattered remnants of an outer wall, which has a diameter of 220 kilometers. This exterior rim is more intact to the north and west of the crater than elsewhere. To the southeast of the Grimaldi plain is a system of rilles named the Rimae Grimaldi. To the northwest, rilles belonging to the Rimae Riccioli approach the western edge of the Grimaldi crater rim.

Grimaldi has a history of transient lunar phenomena, including occasional flashes of light, color patches, and areas of hazy visibility. Gaseous emissions from this area have also been detected using spectroscopy. Orbiting spacecraft have also detected a mass concentration (Mascon) below this feature.

atellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Grimaldi crater.

References


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Grimaldi — House of Grimaldi, Genoese family and rulers of Monaco.Grimaldi may also refer to: * Grimaldi, Calabria, town in Province of Cosenza, Calabria, Italy * Grimaldi (crater), a crater on the Moon * Grimaldi Industri AB, a Swedish holding company *… …   Wikipedia

  • Grimaldi — I. /grɪˈmɔldi/ (say gri mawldee) noun Joseph, 1779–1837, English comic actor, mime and clown. II. /grəˈmældi/ (say gruh maldee) noun a large crater in the south eastern quadrant of the moon. About 190 km in diameter. {named after Francesco Maria… …   Australian English dictionary

  • Francesco Maria Grimaldi — Infobox Scientist name = Francesco Maria Grimaldi box width = image width =150px caption = Francesco Maria Grimaldi birth date = April 2, 1618 birth place = death date = December 28, 1663 death place = residence = citizenship = nationality =… …   Wikipedia

  • Riccioli (crater) — lunar crater data latitude=3.0 N or S=S longitude=74.3 E or W=W diameter=146 km depth=2.3 km colong=75 eponym=Giovanni B. RiccioliRiccioli is a large lunar impact crater located near the western limb of the Moon. It lies just to the northwest of… …   Wikipedia

  • Damoiseau (crater) — Coordinates 4°48′S 61°06′W / 4.8°S 61.1°W / …   Wikipedia

  • Francesco Maria Grimaldi — Saltar a navegación, búsqueda Francesco Maria Grimaldi. Francesco Maria Grimaldi (2 de abril de 1618 28 de diciembre de 1663) fue un matemático y físico italiano que dio cla …   Wikipedia Español

  • Flamsteed (crater) — lunar crater data latitude=4.5 N or S=S longitude=44.3 E or W=W diameter=21 km depth=2.2 km colong=44 eponym=John FlamsteedFlamsteed is a small lunar crater located on the Oceanus Procellarum. It lies almost due east of the dark hued Grimaldi… …   Wikipedia

  • Hevelius (crater) — lunar crater data latitude=2.2 N or S=N longitude=67.3 E or W=W diameter=106 km depth=1.8 km colong=68 eponym=Johannes HeveliusHevelius is a low rimmed lunar crater that lies at the western edge of the Oceanus Procellarum lunar mare. The smaller… …   Wikipedia

  • Lohrmann (crater) — lunar crater data latitude=0.5 N or S=S longitude=67.2 E or W=W diameter=31 km depth=1.7 km colong=68 eponym=Wilhelm G. LohrmannLohrmann is a small lunar crater that is located to the west of the Oceanus Procellarum lunar mare, near the western… …   Wikipedia

  • Cráteres lunares — Anexo:Cráteres lunares Saltar a navegación, búsqueda Esta es una lista de 1517 cráteres de impacto lunares que han sido nombrados. La convención de la UAI para nombrar estos accidentes selenográficos es la de usar los nombres aquellos fallecidos… …   Wikipedia Español


Share the article and excerpts

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

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.