Jump to content

File:The "cloverleaf" quasar H 1413+117 (eso8806a).jpg

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Original file (1,756 × 849 pixels, file size: 383 KB, MIME type: image/jpeg)

Summary

Description
English: Left: The central area of a CCD image of the quadruply lensed quasar H 1413+117 (the Cloverleaf), obtained in red light on 8 March 1988 at the ESO/MPI 2.2 m telescope. The four images are clearly separated; they all belong to the same object. Right: The geometry of the system. The four images of the quasar are called A, B, C and D, in order of decreasing brightness. The distances between them are indicated in arcseconds. (ESO Press Release eso8806; BW)
Date 28 July 1988 (upload date)
Source
This media was produced by the European Southern Observatory (ESO), under the identifier eso8806a

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

Author ESO
Other versions
  • TIF version
    TIF version

Licensing
This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible."
To the uploader: You must provide a link (URL) to the original file and the authorship information if available.
w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 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.

Captions

Left: The central area of a CCD image of the quadruply lensed quasar H 1413+117 (the Cloverleaf), obtained in red light on 8 March 1988 at the ESO/MPI 2.2 m telescope. The four images are clearly separated; they all belong to the same object.

Items portrayed in this file

depicts

media type

image/jpeg

height

849 pixel

width

1,756 pixel

checksum

ea1be4cce577ecbd709515bfc144bbb7adbbc45a

determination method or standard: SHA-1

inception

28 July 1988

pHash checksum

2jvogksezk1zoetl0juy6qov50limmmtf2pybnnuv37p9527ak

determination method or standard: JImagehash perceptual hash

File history

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

Date/TimeThumbnailDimensionsUserComment
current18:38, 30 October 2023Thumbnail for version as of 18:38, 30 October 20231,756 × 849 (383 KB)OptimusPrimeBot#Spacemedia - Upload of https://cdn.eso.org/images/large/eso8806a.jpg via Commons:Spacemedia

The following page uses this file:

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.

Retrieved from "https://en.wikipedia.org/wiki/File:The_%22cloverleaf%22_quasar_H_1413%2B117_(eso8806a).jpg"