Ancient_Beijing_observatory_14.jpg
Size of this preview:
472 × 599 pixels
.
Other resolutions:
189 × 240 pixels
|
573 × 727 pixels
.
Description Ancient Beijing observatory 14.jpg | Quadrant Altazimuth in Beijing Ancient Observatory 象限仪(地平纬仪) | |||
Date | ||||
Source | Own work | |||
Author | user:kallgan | |||
Permission
( Reusing this file ) |
|