![File:Potw2011a - The Milky Way.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Potw2011a_-_The_Milky_Way.jpg/800px-Potw2011a_-_The_Milky_Way.jpg)
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Summary
DescriptionPotw2011a - The Milky Way.jpg |
English: This picture of the week showcases the night sky over the construction site for the Extremely Large Telescope. A beautiful array of stars and the hazy band of the Milky Way are clearly visible above the site. In order to see the Milky Way so distinctly, one must be in an area with low light pollution, such as the Chilean mountain Cerro Armazones, when there is little or no moonlight.
The ELT will be “the world’s biggest eye on the sky” when it begins operating in late 2025. With a 39-metre primary mirror, the ELT will search the sky in the optical and near-infrared wavelength regions for new exoplanets, specifically Earth-like planets in orbit around other stars. The ELT will also be able to perform a kind of “stellar archaeology,” answering fundamental questions about how planets, primordial stars, primordial galaxies and black holes form and evolve. Perhaps the most exciting goal of the ELT is the possibility of making a direct measurement of the acceleration with which the Universe is expanding. Astrophysicists have known that the Universe is expanding for decades, meaning that the distances between galaxies are increasing. We now think this expansion is accelerating and to directly measure this acceleration would vastly increase humanity’s understanding of our Universe. This image was created as part of the ESO Cosmic Gems programme, an outreach initiative to produce images of interesting, intriguing or visually attractive objects using ESO telescopes, for the purposes of education and public outreach. The programme makes use of telescope time that cannot be used for science observations. All data collected may also be suitable for scientific purposes, and are made available to astronomers through ESO’s science archive. |
Date | |
Source | https://www.eso.org/public/images/potw2011a/ |
Author | ESO/P. Horálek |
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Captions
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depicts
16 March 2020
6,400
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 07:59, 15 February 2024 | ![]() | 18,669 × 10,019 (44.1 MB) | C messier | full size |
15:10, 16 March 2020 | ![]() | 4,000 × 2,147 (2.43 MB) | Jmencisom | Uploaded a work by ESO/P. Horálek from https://www.eso.org/public/images/potw2011a/ with UploadWizard |
File usage
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.
ISO speed rating | 6,400 |
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Credit/Provider | ESO/P. Horálek |
Source | European Southern Observatory |
Short title |
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Image title |
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Usage terms |
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Date and time of data generation | 06:00, 16 March 2020 |
JPEG file comment | Despite the moonlight, the Milky Way forms an arch over the site where the Extremely Large Telescope is under construction. This Northern Chilean site has clear views of the night sky thanks to its high altitude and the low levels of light pollution. On the ground, around the shadow of the photographer the very fine dust makes similar effect like with astronauts on the Moon. |
Software used | Adobe Photoshop CC 2019 (Windows) |
File change date and time | 16:21, 28 August 2019 |
Projection type | Equirectangular |
Use panorama viewer | Yes |
Panorama cropped width | 23,684 |
Panorama cropped height | 11,842 |
Panorama full width | 23,684 |
Panorama full height | 11,842 |
Panorama left crop | 0 |
Panorama top crop | 0 |
Stitching software | PTGui Pro 10.0.15 (www.ptgui.com) |
Date and time of digitizing | 00:18, 6 July 2019 |
Date metadata was last modified | 18:21, 28 August 2019 |
Unique ID of original document | xmp.did:ffb49a17-c040-db44-b848-7d48e5b1316a |
Keywords | Extremely Large Telescope |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, None, D-85748 Germany |
IIM version | 4 |