File:Beijing Ancient Observatory 91076.jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file (1,944 × 2,592 pixels, file size: 3.05 MB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
Description
English: Analemmatic Sundial. Ancient Observatory, Beijing

The horizontal scale of this sundial measures the sun's right ascension (RA, angle from the equinox); the vertical scale measures half a year; and the "figure eight" shows how the point of sunrise swings back and forth during the course of the year. The gnomon's shadow at noon will intercept the figure eight at a specific point, where the day of the year can be read off from the vertical scale.
Date
Source Own work
Author G41rn8

Licensing

[edit]
I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current22:36, 7 December 2015Thumbnail for version as of 22:36, 7 December 20151,944 × 2,592 (3.05 MB)G41rn8 (talk | contribs)User created page with UploadWizard

You cannot overwrite this file.

There are no pages that use this file.

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Beijing_Ancient_Observatory_91076.jpg&oldid=820285868"