Sinus Lunicus (;

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

for "Bay of

Lunik Lunik () is a band from Switzerland. There are currently three members. Lunik started in 1997 with Adi Amstutz, Luk Zimmermann, Mats Marti, Walo Müller and Anton Höglhammer. Singer Jaël joined the band in 1998 and Anton Höglhammer left the ...

") is an area of

lunar mare The lunar maria (; singular: mare ) are large, dark, basaltic plains on Earth's Moon, formed by ancient asteroid impacts on the far side on the Moon that triggered volcanic activity on the opposite (near) side. They were dubbed , Latin for 'seas' ...

along the southeast edge of the

Mare Imbrium Mare Imbrium (Latin ''imbrium'', the "Sea of Showers" or "Sea of Rains", "Sea of Tears") is a vast lava plain within the Imbrium Basin on the Moon and is one of the larger craters in the Solar System. The Imbrium Basin formed from the colli ...

on the Earth's Moon. It is formed by the area enclosed by the prominent craters

Archimedes Archimedes of Syracuse (;; ) was a Greek mathematician, physicist, engineer, astronomer, and inventor from the ancient city of Syracuse in Sicily. Although few details of his life are known, he is regarded as one of the leading scientists ...

to the southwest,

Autolycus In Greek mythology, Autolycus (; Ancient Greek: Αὐτόλυκος ''Autolykos'' 'the wolf itself') was a successful robber who had even the power of metamorphosing both the stolen goods and himself. He had his residence on Mount Parnassus and w ...

to the southeast, and

Aristillus Aristyllus ( el, Ἀρίστυλλος; fl. c. 261 BC) was a Greek astronomer, presumably of the school of Timocharis (c. 300 BC). He was among the earliest meridian-astronomy observers. Six of his stellar declinations are preserved at ...

to the northeast. The bay is open to the northwest, and faces the

Montes Spitzbergen The Montes Spitzbergen (Spitzbergen Mountains) is a solitary mountain chain in the eastern Mare Imbrium of the Moon. It is located about 80 km to the north of the flooded crater Archimedes. The range trends from south to north, consisting ...

, a small chain of mountains. Moon And Sinus Lunicus

This bay was named the ''Bay of Lunik'' by the

International Astronomical Union The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreac ...

(IAU) in 1970 to honor the landing site of ''

Luna 2 ''Luna 2'' ( rus, Луна 2}), originally named the Second Soviet Cosmic Rocket and nicknamed Lunik 2 in contemporaneous media, was the sixth of the Soviet Union's Luna programme spacecraft launched to the Moon, E-1 No.7. It was the first spac ...

'', the first human space probe to make contact with another interplanetary body. The ''Luna 2'' landed in the gap between the craters Archimedes and Autolycus on September 14, 1959. The

selenographic coordinates The selenographic coordinate system is used to refer to locations on the surface of Earth's moon. Any position on the lunar surface can be referenced by specifying two numerical values, which are comparable to the latitude and longitude of Earth. ...

of Sinus Lunicus are 32.4° N and 1.9° W. Its diameter is 120 kilometers. The most distinctive features on the bay are the complex outer

rampart Rampart may refer to: * Rampart (fortification), a defensive wall or bank around a castle, fort or settlement Rampart may also refer to: * "O'er the Ramparts We Watched" is a key line from "The Star-Spangled Banner", the national anthem of the ...

s of ejecta from the craters Aristillus and Autolycus, and the small satellite craters Archimedes C and Archimedes D. The

albedo Albedo (; ) is the measure of the diffuse reflection of sunlight, solar radiation out of the total solar radiation and measured on a scale from 0, corresponding to a black body that absorbs all incident radiation, to 1, corresponding to a body ...

of the surface is brightened by overlapping ray material from Autolycus and Aristillus.

References

External links

Map of quadrangle LAC-25
USGS {{DEFAULTSORT:Lunicus, Sinus Maria on the Moon Mare Imbrium