File:Britannica Astrolabe - Principle.jpg
Jump to navigation
Jump to search
No higher resolution available.
Britannica_Astrolabe_-_Principle.jpg (315 × 206 pixels, file size: 41 KB, MIME type: image/jpeg)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
| Description | Schematic drawing for describing the principle of the astrolabe. | |||
| Date | published 1911 | |||
| Source | Encyclopædia Britannica (11th ed.), v. 2, 1911, p. 795. | |||
| Author | Unknown author | |||
| Permission (Reusing this file) |
|
Caption:
Principle of the Astrolabe. If a solid circle be fixed in any one position and a tube be pivoted on its centre so as to move; and if the line C D be drawn upon the circle pointing towards any object Q in the heavens which lies in the plane of the circle, by turning the tube A B towards any other object P in the plane of the circle, the angle B O D will be the angle subtended by the two objects P and Q at the eye.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:56, 20 June 2012 | | 315 × 206 (41 KB) | Bob Burkhardt | {{Information |Description=Drawing of a Persian astrolabe of c. 1712 |Source=''Encyclopædia Britannica'' (11th ed.), v. 2, 1911, p. 795. |Date=published 1911 |Author=unknown artist |Permission={{PD-Britannica}} |other_versions= }} Caption: Principle ... |
File usage
The following 2 pages use this file:
