File:How light pollution affects the dark night skies (dark-skies).tiff
Original file (8,000 × 4,500 pixels, file size: 32.29 MB, MIME type: image/tiff)
Captions
Summary
editDescriptionHow light pollution affects the dark night skies (dark-skies).tiff |
English: This image illustrates the Bortle scale, which measures the impact of light pollution on the dark skies at a given location. It shows, from left to right, the increase in the number of stars and night-sky objects visible in excellent dark sky conditions compared with cities. The illustration is a modification of an original photograph taken at ESO's Paranal Observatory in Chile, a place with excellent dark-sky conditions, perfect for astronomy. |
||
Date | 29 June 2022, 08:52 (upload date) | ||
Source |
|
||
Author | ESO/P. Horálek, M. Wallner | ||
Other versions |
|
Licensing
editThis 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. | |
This file is licensed under the Creative Commons Attribution 4.0 International license.
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 17:04, 29 July 2023 | 8,000 × 4,500 (32.29 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://cdn.eso.org/images/original/dark-skies.tif via Commons:Spacemedia |
You cannot overwrite this file.
File usage on Commons
The following 2 pages 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.
Width | 8,000 px |
---|---|
Height | 4,500 px |
Bits per component |
|
Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 10 |
Horizontal resolution | 150 dpi |
Vertical resolution | 150 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop 23.1 (Macintosh) |
File change date and time | 08:49, 29 June 2022 |
Color space | Uncalibrated |