Gemma Frisius
Contents
Gemma Frisius
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Lat: 34.2°S, Long: 13.3°E, Diam: 87 km, Depth: 5.16 km, [/R%C3%BCkl%2066 Rükl: 66] |
Table of Contents
[#Gemma Frisius Gemma Frisius]
[#Gemma Frisius-Images Images]
[#Gemma Frisius-Maps Maps]
[#Gemma Frisius-Description Description]
[#Gemma Frisius-Description: Elger Description: Elger]
[#Gemma Frisius-Description: Wikipedia Description: Wikipedia]
[#Gemma Frisius-Additional Information Additional Information]
[#Gemma Frisius-Nomenclature Nomenclature]
[#Gemma Frisius-LPOD Articles LPOD Articles]
[#Gemma Frisius-Bibliography Bibliography]
LO-IV-095H Gemma Frisius is in the center. The 46-km crater to its northeast is [/Goodacre Goodacre]. Many named [/satellite%20feature lettered craters] associated with both are also visible. The most prominent is probably the deeply-shadowed 28-km Gemma Frisius D, just outside the west rim of Gemma Frisius. Part of the northwest floor of 68-km Gemma Frisius A is visible in the lower right corner.
Images
LPOD Photo Gallery Lunar Orbiter Images Apollo Images
Maps
([/LAC%20zone LAC zone] 113A1) LAC map Geologic map
Description
Description: Elger
([/IAU%20Directions IAU Directions]) GEMMA FRISIUS.--A great composite walled-plain, 80 miles or more in length from N. to S., with a wall rising at one place nearly 14,000 feet above the floor. It is broken on the N. by two fine ring-plains, each about 20 miles in diameter, and on the W. by a third open to the W. There is a central mountain, and several small craters on the floor, especially on the E. side.
Description: Wikipedia
Additional Information
- Depth data from [/Kurt%20Fisher%20crater%20depths Kurt Fisher database]
- Westfall, 2000: 5.16 km
Viscardy, 1985: 5.2 km
Cherrington, 1969: 5.21 km
- Westfall, 2000: 5.16 km
- Central peak height
- 0.6 km [/Sekiguchi%2C%201972 Sekiguchi, 1972]. - fatastronomer fatastronomer
- Satellite crater Gemma Frisius M is on the [/ALPO%20list%20of%20bright%20ray%20craters ALPO list of bright ray craters].
- Satellite craters Gemma Frisius Ea, Eb, and K are on the [/ALPO%20list%20of%20banded%20craters ALPO list of banded craters]
Nomenclature
- Named for Gemma Frisius (December 9, 1508 - May 25, 1555), a mathematician, cartographer and instrument maker. He created important globes, improved the mathematical instruments of his day and applied mathematics in new ways to surveying and navigation. He became noted for the quality and accuracy of his instruments, which were praised by Tycho Brahe, among others. In 1533, he described for the first time the method of triangulation still used today in surveying. Frisius created or improved many instruments, including the cross-staff, the astrolabe and the astronomical rings.
- According to [/Whitaker Whitaker] (p. 212), this name was used for the same feature by [/Riccioli Riccioli].
- The row of craters which connect Gemma Frisius and [/Rabbi%20Levi Rabbi Levi] (east of Gemma Frisius) was once known as The Link. This name (nickname) appeared on a moonmap which was included in the LPOD of February 11, 2004.
LPOD Articles
Bibliography
This page has been edited 1 times. The last modification was made by - tychocrater tychocrater on Jun 13, 2009 3:24 pm - afx3u2
