Montes D'Alembert

Montes d'Alembert

(discontinued [/IAU IAU] name; former IAU name: D'Alembert Mountains)

Table of Contents

[#Montes d'Alembert Montes d'Alembert]

[#Montes d'Alembert-Images Images]

[#Montes d'Alembert-Maps Maps]

[#Montes d'Alembert-Description Description]

[#Montes d'Alembert-Description: Elger Description: Elger]

[#Montes d'Alembert-Additional Information Additional Information]

[#Montes d'Alembert-Nomenclature Nomenclature]

[#Montes d'Alembert-LPOD Articles LPOD Articles]

[#Montes d'Alembert-Bibliography Bibliography]

Lat: 7°S, Long: 85°W, Diameter: 310 km, Height: km, Rukl:

Above: LROC view of the mountains A, B and C as seen by Schröter (see also images in Additional Information section below). - JohnMoore2 JohnMoore2

Images

Johann [/Schr%C3%B6ter Schröter] carefully studied the changing appearance of the Montes d'Alembert peaks as a function of libration. The results of his analysis can be seen here and here, with additional drawings here, and possibly here (Figure 74?).
 
 

Maps

([/LAC%20zone LAC zone] 73) USGS Digital Atlas PDF

Description

Historic name for suspected mountain range near the moon's western limb, in reality the northern part of [/Mare%20Orientale Orientale Basin] seen in profile on the limb.
 
 

Description: Elger

([/IAU%20Directions IAU Directions]) D'Alembert Mountains. A range on the W. limb running S. from N. lat. 12 deg. ... A very lofty range on the W. limb, extending to S. lat. 11 deg.

Additional Information

• Most of these peaks would probably today be regarded as part of the [/Montes%20Cordillera Montes Cordillera] ring of the [/Mare%20Orientale Orientale] basin.
• The peaks seen by Schröter can be readily identified if the date and time of his drawings of them are known. For example, the article by Baum and Whitaker (2007) mentions that his Plate XXX represents the Moon as seen on "1788 September 24 at 4.15 a.m." (presumably around 03:15 UT). Based on this information, a simulation of the expected appearance of the limb can be created using the Kaguya global DEM with [/LTVT LTVT] (image on left). The peaks labeled by Schröter can then be identified in an aerial view based on the longitude and latitude of the points used to draw the corresponding features in the simulation (image on right).

Earth-based view	Aerial view

(click on the thumbnails to see full-sized screenshots)

Nomenclature

• Named for Jean le Rond d'Alembert (November 16, 1717 - October 29, 1783), a French mathematician, mechanician, physicist and philosopher. He was also co-editor with Denis Diderot of the Encyclopédie. D'Alembert's method for the wave equation is named after him. The crater [/D%27Alembert D'Alembert] is also named in his honor.
• The name Montes d'Alembert was assigned by [/Schr%C3%B6ter Schröter] to peaks he observed in the limb regions beyond [/Grimaldi Grimaldi] and [/Schl%C3%BCter Schlüter].
• Mary Blagg found this name in use by all three of her authorities and included D'Alembert Mountains as Cat. No. 2020 in her [/Collated%20List Collated List]. The name was adopted in this form in the original IAU nomenclature of [/Blagg%20and%20M%C3%BCller Blagg and Müller] (1935). Although Schröter had several separately named peaks, the IAU does not appear to have adopted Greek letters for them.
• The name was Latinized to Montes D'Alembert by the [/LPL LPL], whose work was approved in [/IAU%20Transactions%20XIIB IAU Transactions XIIB] (1964).
• Montes D'Alembert was dropped by the IAU in [/Menzel%2C%201971 Menzel, 1971], which found that "certain previously named features, especially those on or near [/Mare%20Orientale Mare Orientale], proved to be non-existent". The name was reassigned to the unrelated crater now known as [/D%27Alembert D'Alembert].
• Montes d'Alembert is still printed on some of the modern moonmaps, such as the Hallwag map.

LPOD Articles

Bibliography

Baum, R. and Whitaker, E. A. 2007. Mare Orientale: The Eastern Sea in the west - Discovery and nomenclature. Journal of the British Astronomical Association, vol.117, no.3, p.129-135
  Whitaker, E. A. : [/Mapping%20and%20Naming%20the%20Moon Mapping and Naming the Moon] (Cambridge, 1999).
 
 

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This page has been edited 1 times. The last modification was made by - tychocrater tychocrater on Jun 13, 2009 3:24 pm - mfx3