Humboldt is a large lunar impact crater that is located near the eastern limb of the Moon. Due to foreshortening this formation has an extremely oblong appearance. The actual shape of the crater is an irregular circle, with a significant indentation along the southeastern rim where the prominent crater Barnard intrudes. To the north-northwest of Humboldt is the large crater Hecataeus. Phillips is attached to the western rim. The rim of Humboldt is low, worn, and irregular in outline. The central peak forms a range on the crater floor. The floor surface contains a network of rilles forming a pattern of radial spokes and concentric arcs. There are also some dark patches located near the walls to the northeast, northwest, and southeast. There is a chain of craters leading from the northwest crater rim to a distance almost as long as the crater is wide. This formation is designated Catena Humboldt. Due to its location near the lunar limb, little detail was known about this crater until it was photographed by orbiting spacecraft.
King is a prominent lunar impact crater that is located on the far side of the Moon, and can not be viewed directly from Earth. The crater was named after Arthur Scott King and Edward Skinner King in 1970. Prior to that, this crater was known as Crater 211. It forms a pair with Ibn Firnas, which is only slightly larger and is attached to the northeast rim of King. To the northwest is the crater Lobachevskiy, and Guyot is located an equal distance to the north-northwest.
Litke is a lunar impact crater that lies within the large walled plain Fermi, near the north-northwestern inner rim. Less than one crater diameter to the west-northwest is the slightly larger Delporte. Litke is located on the far side of the Moon and cannot be viewed directly from the Earth.
Lermontov is an impact crater on the planet Mercury. The crater is named after Mikhail Yuryevich Lermontov, a 19th-century Russian poet. The name was approved by the International Astronomical Union in 1976.
Raphael is a crater on Mercury. Its name was adopted by the International Astronomical Union (IAU) in 1976, and is named for the Italian painter Raphael.
Praxiteles is a crater on Mercury. It is one of 110 peak ring basins on Mercury.
Navoi is a crater on Mercury. It contains uncommon reddish material that indicates a different rock composition from its surroundings. Navoi also appears to have an irregularly shaped depression in its center. Such depressions have been seen elsewhere on Mercury, including within Praxiteles crater, and may indicate past volcanic activity.
Hemingway is a crater on Mercury. It has a patch of very dark material located near its center. The dark color is likely due to rocks that have a different mineralogical composition from that of the surrounding surface.
Geddes is a crater on Mercury. It has a diameter of 84 kilometers. Its name was adopted by the International Astronomical Union (IAU) in 2010. Geddes is named for the Irish stained glass artist Wilhelmina Geddes, who lived from 1887 to 1955.
Giotto is a crater on Mercury. It has a diameter of 144 kilometers. Its name was adopted by the International Astronomical Union (IAU) in 1976. Giotto is named for the Italian painter Giotto di Bondone, who lived from 1271 to 1377.
Hitomaro is a crater on Mercury. It has a diameter of 105 kilometers. Its name was adopted by the International Astronomical Union (IAU) in 1976. Hitomaro is named for the Japanese poet Kakinomoto no Hitomaro, who lived from the 650s to roughly 709.
Mistral is a crater on Mercury. Its name was adopted by the International Astronomical Union (IAU) in 1976. Mistral is named for the Chilean poet Gabriela Mistral, who lived from 1889 to 1957.
Mussorgskij is a crater on Mercury. It has a diameter of 125 kilometers. Its name was adopted by the International Astronomical Union (IAU) in 1979. Mussorgskij is named for the Russian composer Modest Mussorgsky, who lived from 1839 to 1881.
Occator is an impact crater located on Ceres, the largest object in the main asteroid belt that lies between the orbits of Mars and Jupiter, that contains "Spot 5", the brightest of the bright spots observed by the Dawn spacecraft. It was known as "Region A" in ground-based images taken by the W. M. Keck Observatory on Mauna Kea.
Enheduanna is a crater on Mercury. It has a diameter of 105 kilometers. Its name was suggested by Gagan Toor from India in a naming contest which was eventually adopted by the International Astronomical Union (IAU) on 2015. Enheduanna is named for the Sumerian poet Enheduanna. The craters Carolan, Kulthum, Karsh, and Rivera were also named as part of the contest.
Namatjira is a crater on Mercury. It has a diameter of 34 kilometers. Its name was adopted by the International Astronomical Union (IAU) on September 25, 2015. Namatjira is named for the Australian aboriginal artist Albert Namatjira.
Grainger is a crater on Mercury. Its name was adopted by the International Astronomical Union (IAU) in 2012, after the Australian-born composer George Percy Aldridge Grainger.
Nathair Facula is a bright region on the surface of Mercury, located at 36° N, 295.5° W. It was named by the IAU in 2018. Nathair is the Irish word for snake.
Rilke is a crater on Mercury. Its name was adopted by the International Astronomical Union (IAU) in 1976. Rilke is named for the German poet Rainer Maria Rilke.
Donelaitis is a crater on Mercury. Its name was adopted by the International Astronomical Union (IAU) on May 15, 2013. Donelaitis is named for the Lithuanian poet Kristijonas Donelaitis.
Oblique view showing detail of the irregular pit
Highly oblique view
