34.Hyginus

Area with pronounced radial structures orientated on Mare Imbrium. Clearly visible are Rima Hyginus, and Rima Ariadeus. About ten km north of Bodin C we find an interesting high plain.

AGRIPPA - Agrippa (ca.92 BC) Greek astronomer. Agrippa observed the occultation of a part of the Pleiades, (92 AD), by the southernmost part of the Moon to check the precession of the equinoxes.

Crater (46km /29Mi ) (Dept: 3.100m /10.170ft) (4.1N, 10.5E)

BOSCOVICH - Roger Joseph Boscovich (1711 - 1787) Croatian astronomer, mathematician, and physicist.

Crater (46Km /29Mi ) (Dept: 1,800m /5.905ft) (9.8N, 11.1E)

CAYLEY - Arthur Cayley (1821 - 1895) English mathematician, astronomer, creator of analyitical geometry.

Crater (14km /9Mi ) (Dept: 3.100m /10.170ft) (4.0N, 15.1E) Circular.

D'ARREST - Heinrich L. D'Arrest (1822 - 1875) German astronomer. Discovered the comet 6P/d'Arrest (1851), discovered asteroid 76 Freia, and made an unsuccessful search for the moons of Mars.

Crater (30km /19Mi ) (Dept: 1,500m /4,921ft) (2.3N, 14.7E) Broken rim, surface flooded, eroded.

DEMBOWSKI - Baron Ercole Dembowski (1815 - 1881) Italian astronomer. Tireless observer of double stars, made tens of thousands of micrometer measurements. Found that some stars had moved from their positions as noted in Friedrich Struve's Dorpat Catalogue.

Crater (26km /16Mi ) (Dept: 280m /918ft) (2.87N, 7.25E ) The floor is covered by a lava flow that has also eradicated the eastern half of the rim.

DE MORGAN - Augustus De Morgan (1806 - 1871) English mathematician. formulated De Morgan's laws.

Crater (10km /6Mi ) (Dept: 1,800m /5.905ft) (3.3N, 14.9E) Circular and bowl-shaped, with a small interior floor.

GODIN - Louis Godin (1514-1576) French mathematician and surveyor. Worked on determining the shape of the earth, and on seismology.

Crater (35Km /22Mi ) (Dept: 3,200m /10,498ft) (1.8N, 10.2E) The rim is wider in the southern half than in the north. The interior is rough-surfaced, with a higher albedo than the surroundings, a central peak rises from the floor. A faint ray system surrounds the crater, and extends for about 375 kilometers.

HYGINUS - Gaius Julius Hyginus (100 BC) Roman/Spanish, friend of Ovidius. Described the constellations and their mythologies.

Crater (9Km /6Mi ) (Dept: 780m /2,559ft) (7.75 N, 6.27 E) Probably volcanic.

RIMA HYGINUS - Gaius Julius Hyginus (100 BC) Roman/Spanish, friend of Ovidius. Described the constellations and their mythologies.

Rille (Length: 220Km /137Mi ) (Dept: unknown) (7.4N, 7.8E) Large rille first south-east north-west oriented. Crosses the crater Hyginus. Then west east oriented. Seems formed of an alignment of craterlets. Connected by a small groove to Rima Ariadaeus.

JULIUS CAESAR - Julius Caesar (102 - 44 BC) Roman politician, general and dictator. Reformed the calendar system. The Julian calendar.

Crater. (90Km /56Mi ) (Dept: 3,400m /11,154ft) (9.0N, 15.4E) Irregular, eroded crater remnants overlap the rim along the south and northeast edges.

MANILIUS - Marcus Manilius (1th century AD) Roman poet.

Crater (39Km /24Mi ) (Dept: 3,100m /10,170ft) (14.5N, 9.1E) Circular, somewhat irregular, with a central mountain.

 

 

 

 

 

 

 

 

 

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SILBERSCHLAG - Johann E. Silberschlag (1721 - 1791) German theologian. Calculated to determine the orbits of comets.

Crater (13Km /8Mi ) (Dept: 2,500m /8,202ft) (6.2N, 12.5E) Small circular crater. Bowl shaped.

TEMPEL - Ernst Wilhelm Leberecht Tempel (1821-1889) German astronomer, discoverer of 6 asteroids, and 20 comets.

Crater (45Km /28Mi ) (Dept: 1,300m /4,265ft) (3.9N, 11.9E ) Crater remnant, outer rim eroded, irregular.

MARE VAPORUM - Sea of Vapors. Named by Giovanni Battista Riccioli in 1651. (Riccioli's Moon Map).

Mare (242km /150Mi ) (13.3N, 3.6E) (55,000km / 21,236Mi ) To the south of the mare is a light colored thin line. This feature is called Rima Hyginus.

WHEWELL - William Whewell (1794-1866) English philosopher and science-historian.

Crater (13Km /8Mi ) (Dept: 2,300m /7,545ft) (4.2N, 13.7E) Circular, bowl-shaped crater with interior walls that slope down to a small interior floor.

 

 

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