File:Light pollution, Third Place.jpg
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[edit]DescriptionLight pollution, Third Place.jpg |
English: Third place in the 2021 IAU OAE Astrophotography Contest, category Light pollution: Satellite swarm versus night sky beauty, by Torsten Hansen, Germany.
This image of Venus and the Pleiades also shows the tracks of the Starlink satellites. These satellites which are located at an altitude of approximately 550 kilometres, are part of an ever-growing constellation of satellites aimed to provide worldwide internet access. The reflective surfaces of the satellites, coupled with the fact that they are orbiting around the Earth, means that astronomical observations which require very long exposures capture “tracks” of the satellites in their images. Astronomical images used for scientific research are not usable because the measurements and data will contain these “tracks”. Because the number of satellites is expected to grow, it is likely that in the near future there will be no place on Earth where these satellites will not be visible crossing the sky. This is a new type of light pollution that seems to be an upcoming problem we will have to deal with, as these satellites might prevent optimal observation of the sky. |
Date | |
Source | IAU (via [1]) |
Author | Torsten Hansen/IAU OAE |
Permission (Reusing this file) |
CC-BY 4.0 |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:38, 11 February 2022 | 2,400 × 3,601 (1.61 MB) | Mike Peel (talk | contribs) | == {{int:filedesc}} == {{Information |Description={{en|Third place in the 2021 IAU OAE Astrophotography Contest, category Light pollution: Satellite swarm versus night sky beauty, by Torsten Hansen, Germany. This image of Venus and the Pleiades also shows the tracks of the Starlink satellites. These satellites which are located at an altitude of approximately 550 kilometres, are part of an ever-growing constellation of satellites aimed to provide worldwide internet access. The reflective sur... |
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Author | I |
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Credit/Provider | Torsten Hansen/IAU OAE |
Source | International Astronomical Union |
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Usage terms |
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Date and time of data generation | 18:00, 25 August 2021 |
Software used | Adobe Photoshop 22.4 (Windows) |
File change date and time | 14:11, 23 August 2021 |
Date and time of digitizing | 20:33, 6 April 2020 |
Date metadata was last modified | 16:11, 23 August 2021 |
Unique ID of original document | xmp.did:FFDF755C2478EA11B39EE8B4A564AE38 |
Contact information |
98-bis Blvd Arago Paris, None, F-75014 FRANCE |
IIM version | 4 |