Lat: 35.0°N, Long: 60.7°E, Diam: 47 km, Depth: 4.08 km, Rükl: 16
(IAU Directions) BERNOUILLI.--A very deep ring-plain on the E. side of Geminus. Under evening illumination its lofty E. wall, which rises to a height of nearly 13,000 feet above the floor, is conspicuously brilliant. This formation exhibits a marked departure from the circular type, being bounded by rectilineal sides. The inner slope of the E. wall is slightly terraced. The border on the S. is much lower than elsewhere, as is evident when the formation is on the evening terminator. On the N. is the deep crater Messala a.
- Depth data from Kurt Fisher database
- Westfall, 2000: 4.08 km
- Viscardy, 1985: 4 km
- From the shadows in LO-IV-191H, Bernoulli is about 3540 m deep. - JimMosher
- Central peak height
- Sekiguchi, 1972: 1.4 km - fatastronomer
- Central peak composition: Anorthosite & GNTA1 (Tompkins & Pieters, 1999)
- The IAU crater name honors two brothers:
- Jacob Bernoulli (also known as James or Jacques) (December 27, 1654 - August 16, 1705). He is one of the eight prominent mathematicians in the Bernoulli family. Jacob Bernoulli seems to be unknown in Who's Who on the Moon by the twin brothers Cocks (1995).
- Johann Bernoulli (also known as Jean or John) (July 27, 1667 - January 1, 1748) was a Swiss mathematician. He was the brother of Jakob Bernoulli, and the father of Daniel Bernoulli (for whom the Bernoulli's principle was named) and Nicolaus II Bernoulli. He educated the great mathematician Leonhard Euler in his youth.
- The name was introduced, with its present spelling, by Johann Schröter on page 167 of the first volume of his book, and the crater is labeled in his figures T. VII and T. VIII.
- The spelling Bernouilli, cited by Elger, was used by all three authorities consulted for the Collated List, where this crater became Catalog number 161, and it was adopted into the IAU nomenclature of Blagg and Müller (1935) in that form.
- At some point between 1997 and 2003 the spelling was changed back to Bernoulli (see list in IAU Transactions XXIVB).
- The BAA's Who's Who on the Moon indicates that the name Bernouilli commemorated the two brothers cited by the IAU. This makes it one of the earliest features with dual honorees, however how the BAA authors determined which members of the large and famous Bernoulli family Schröter had in mind is completely unclear. Schröter himself does not appear to explain, and there seem to have been several Bernouilli's with both stronger and more recent lunar/astronomical ties than the two cited. - JimMosher
- Spelled "Bernouli" (with 1 "l") on chart 1 (page 15) of Chuck Wood's and Maurice Collins's 21st Century Atlas of the Moon (2012).- DannyCaes Jan 21, 2013
A certain Bernoulli in the Sourcebook Project (William R. Corliss)
- In Mysterious Universe, a handbook of astronomical anomalies (1979) :
- Page 546: A New Law of Satellite Distances (J.B.Penniston, Science, 1930). Note: this is something to investigate. Was this Bernoulli related to those mentioned above in the Nomenclature section? - DannyCaes Apr 11, 2015