Skip to main content Accessibility help
×
Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-25T14:07:21.898Z Has data issue: false hasContentIssue false

Quadrant III – Section 10

Published online by Cambridge University Press:  13 May 2010

Get access

Summary

The Cichus – Weiss Region

Cichus is a well-defined crater some 25 miles in diameter situated at the southern end of the mountain barrier dividing the Palus Epidemiarum from the Mare Nubium. The surrounding walls of the crater are lofty and of the order of 8000–9000 ft above the depressed interior on which faint details can be seen under a higher light, but nothing resembling a marked central elevation. Crater A, 7 miles diameter, on the crest of the western wall of Cichus is very bright at sunrise and has a characteristic hooked aspect when seen around colongitude 20°.5.

The object of the 1983 February 21 observation was to examine the eastern section of the Hesiodus rille with particular attention to where it encounters the barrier running north from Cichus and to determine, if possible, whether its course could be traced in the interstices of the mountain range as the shadows lifted.

The region embracing the ruined formation Weiss to the NE of Cichus was also found to be one of absorbing interest and prompted the inclusion of this area in the drawing. Weiss's inner west wall showed, in addition to terracing, a banded appearance and, as the illumination proceeded, the narrow defile of a rille which runs approximately parallel to the larger Hesiodus rille, could be discerned by its penetration of the barrier.

Type
Chapter
Information
Publisher: Cambridge University Press
Print publication year: 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Save book to Kindle

To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Available formats
×

Save book to Dropbox

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.

Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

Available formats
×