File:Earth-Moon.png

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

Original file ‎(14,476 × 480 pixels, file size: 396 KB, MIME type: image/png)

Captions

Captions

Add a one-line explanation of what this file represents

Summary[edit]

Description

Line below Earth represents distance of Earth's centre from the system barycentre. Line below the Moon represents perigee and apogee with the moon at the semi‐major axis position. Moon shown with correct side facing earth, but without any pretty shading. The below information refers to the original version of this file, which was twice the size of the current version (i.e. it's now 14.25 km/px). Sorry but Photoshop wasn't saving them very well, so I had to switch to GraphicConverter, which is limited to 16,000 pixels across. Earth-Moon system at a scale of 7.1224 km/px (0.140402 px/km)

  • Earth polar diameter = 12,713.5 km (893px) ⇒ 7.1224 km/px
  • Moon equatorial diameter = 3,476.2 km (244px)
  • Lunar apogee = 405696 km (28480px)
  • Lunar semi‐major axis = 384400 km (26985px)
  • Lunar perigee = 363104 km (25490px)
  • System barycenter = 4700 km (330px) Scale chosen because Photoshop only supports images 30,000 pixel in width, and scaling the Earth by 50% just about fits with this, all other measurements derived from there.
Date
Source Own work
Author Nickshanks
Other versions
Image extraction processThis file has an extracted image: Earth Eastern Hemisphere.jpg.
lang=en

Wikipedia

 This is a featured picture on the English language Wikipedia (Featured pictures) and is considered one of the finest images. See its nomination here.

If you think this file should be featured on Wikimedia Commons as well, feel free to nominate it.
If you have an image of similar quality that can be published under a suitable copyright license, be sure to upload it, tag it, and nominate it.

Licensing[edit]

w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 2.5 Generic 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.

File history

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

Date/TimeThumbnailDimensionsUserComment
current01:57, 2 February 2006Thumbnail for version as of 01:57, 2 February 200614,476 × 480 (396 KB)Nickshanks (talk | contribs)Halved all dimensions so I could open/re‐save in GraphicConverter and run pngcrush.
01:43, 2 February 2006Thumbnail for version as of 01:43, 2 February 200628,952 × 960 (1.46 MB)Nickshanks (talk | contribs)Re‐saved without interlacing. Size smaller and hopefully Wikipedia will be able to rescale without artifacts.
01:31, 2 February 2006Thumbnail for version as of 01:31, 2 February 200628,952 × 960 (1.94 MB)Nickshanks (talk | contribs)Earth-Moon system at a scale of 7.1224 km/px (0.140402 px/km) * Earth polar diameter = 12,713.5 km (893px) ⇒ 7.1224 km/px * Moon equatorial diameter = 3,476.2 km (244px) * Lunar apogee = 405696 km (28480px) * Lunar semi‐major axis = 384400 km (269

You cannot overwrite this file.

The following page uses this file:

File usage on other wikis

The following other wikis 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:Earth-Moon.png&oldid=688054428"