File:Einstein_cross_(cropped).jpg
From Wikipedia, the free encyclopedia
![File:Einstein cross (cropped).jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/5/54/Einstein_cross_%28cropped%29.jpg/600px-Einstein_cross_%28cropped%29.jpg)
Original file (1,600 × 1,600 pixels, file size: 538 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. |
Summary
DescriptionEinstein cross (cropped).jpg | The European Space Agency's Faint Object Camera on board NASA's Hubble Space Telescope has provided astronomers with the most detailed image ever taken of the gravitational lens G2237 + 0305 — sometimes referred to as the Einstein Cross. The photograph shows four images of a very distant quasar which has been multiple-imaged by a relatively nearby galaxy acting as a gravitational lens. The angular separation between the upper and lower images is 1.6 arcseconds. | ||||
Date | |||||
Source | http://hubblesite.org/newscenter/archive/releases/1990/20/image/a/ | ||||
Author | NASA, ESA, and STScI | ||||
Permission (Reusing this file) |
|
Assessment
Description from other version: An Einstein Cross reveals the presence of a huge gravitational lens in the distant reaches of the universe. Astronomers discovered this gravitational lens in 1985 using survey maps of the sky obtained with the Hubble Space Telescope (HST). The bright object at the center of the image is a distant galaxy. The four bright objects surrounding it are actually multiple images of a single quasar that lies far beyond the galaxy. The lens was named the Einstein Cross in honor of Albert Einstein, whose relativity theory predicted the phenomena decades before the first gravitational lens was observed in 1979.
![]() |
This file has been extracted from another file : Einstein cross.jpg |
Captions
Items portrayed in this file
depicts
13 September 1990
image/jpeg
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 17:45, 14 June 2020 | ![]() | 1,600 × 1,600 (538 KB) | User-duck | File:Einstein cross.jpg cropped square using CropTool with lossless mode. |
File usage
Global file usage
The following other wikis use this file:
- Usage on ja.wikipedia.org
Metadata
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
JPEG file comment | STScI PRC90-20 Gravitational Lens G2237 + 0305 "Einstein Cross" FOC 8/90 Credit: NASA/ESA |
---|