59.Petavius

The Southern extensions of Mare Fecunditatis, with on its floor the bright rays starting at Petavius A, and Snellius A, go as far as the area in-between Petavius, and a group of craters named after famous sailors.

BIOT - Jean Babtiste Biot (1774 - 1862) French astronomer, surveyor, writer about the history of astronomy.

Crater. (13km/8Mi  ) (Dept: 1,500m /4,920ft) (22.72S, 51.04E) Circular, sharp edged.

BORDA - Jean Charles Borda (1733 - 1799) French astronomer and naval officer.

Crater. (44km /27Mi ) (Dept: 3,640m /11,942ft) (25.24S, 46.51E) Wall broken by smaller craterlets, central peak.

COLOMBO - Christopher Columbus (1441 - 1506) Italian sailor, discoverer of America (1492).

Crater. (78Km/48Mi ) ( 2,530m /8,300ft) (15.28S, 45.11E) Sharp edged with multiple central hills.

COOK - James Cook (1728- 1779) English naval officer and explorer, sailed around the world twice.

Crater. (47Km /29Mi ) (1,220m /4,002ft) (17.57S 48.79E) Flooded with lava, leaving only a low rim projecting.

MARE FECUNDITATIS - Sea of Fertility. Named so by Riccioli.

Mare. (840Km /522Mi ) (326,000 km /125,870Mi ) (7.83S, 51.67E) Irregularly shaped, the size of the Caspian Sea on Earth.

HASE - Johann M. Hase (1684 - 1742) German Cartographer and mathematician.

Crater. (83km /52Mi ) (Dept: 3,350m /10,990ft) (29.46S, 62.70E) Partly preserved crater. Eroded and overlaid by Hase A and D.

MC CLURE - Robert le Mesurier McClure (1807 - 1873) British naval officer. First to circumnavigate the Americas.

Crater. (24km /15Mi ) (Dept: 1,180m /3.871ft) (15.37S, 50.19E ) Nearly circular, no central hill.

MONGE - Gaspard Monge (1746-1818) French mathematician, he laid the foundations of modern geometrics.

Crater. (37km /23Mi ) (Dept:1,540m /5,052ft) (19.27S 47.56E) Outer rim somewhat irregular in shape, with an outward bulge to the east and smaller bulges to the north and northwest.

PALITZSCH - Johann G. Palitzsch (1723 - 1788) German amateur astronomer, he observed as first the return of comet Halley, (in 1758, as predicted by Edmund Halley).

Crater. (41km /25Mi ) (Dept: 2,870m /9,416ft) (28.03S, 64.37E) Strongly eroded.

PETAVIUS - Denis Petau (1583 - 1652) French historian and theologian.

Crater. (177km /110Mi ) (Dept: 3,330m /10,925ft) (25.42S, 60.76E) Walled plain with central mountain, rilles and dark spots on the crater floor.

SANTBECH - Daniel Santbech Noviomagus (ca. 1561) Dutch mathematician and astronomer. Worked on ballistics.

Crater. (64km /40Mi ) (Dept: 3,680m /12,073ft) (20.97S 44.03E) Outer rim of this crater stands above the surrounding terrain, small central peak.

 

 

 

 

 

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SNELLIUS - Willebrord Snell (1580 - 1626) Dutch astronomer, mathematician and surveyor. First to use triangulation as a tool for measuring the meridian. Discovered and formulated the law of refraction of light.

Crater. (83km /51Mi ) (Dept: 3,830m /12,565ft) (29.39S, 55.61E) Eroded, with irregular floor, small central hill.

WROTTESLEY - John Baron Wrottesley (1798 - . 1867) English amateur astronomer. Worked on double-star catalogues and astrometry. Founding member of the Royal Astronomical Society

Crater. (57km /35Mi ) (Dept: 4,230m /13,878ft) (23.92S, 56.65E) Sharp edged, terraces, central mountain.

 

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