File:A silent watcher (potw2412a).tiff
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[edit]DescriptionA silent watcher (potw2412a).tiff |
English: This Picture of the Week shows the stunning night sky over the Swedish–ESO Submillimetre Telescope (SEST) telescope at ESO’s La Silla Observatory in Chile. Until its retirement in 2003, SEST used its 15-metre main dish to observe the cold gas clouds where stars form. Now the telescope, perching at 2375 metres altitude, watches silently over the landscape of the Atacama Desert.While SEST stands in one of the darkest places on the planet, the sky itself isn’t completely black — rather the opposite! Here, besides thousands of stars, the picture features shades of red and green across the sky — an atmospheric phenomenon called airglow. In the bottom-left part of the sky we can see a portion of the band of the Milky Way, our home galaxy, and in the top half, two cloud-like structures that look like galactic fireworks. These are the Large and Small Magellanic Clouds, two dwarf galaxies that orbit the Milky Way, trapped by its gravity. They are visible to the naked eye and have been known since ancient times to indigenous peoples in the Southern Hemisphere, who often compared them with water ponds or even animals like pigs or tapirs.In this picture, there is even a shooting star coming by to say hello to SEST. Can you spot it in the sky? |
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Date | 18 March 2024 (upload date) | ||
Source |
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Author | ESO/A. Ghizzi Panizza (www.albertoghizzipanizza.com) | ||
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Licensing
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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. |
![]() ![]() This file is licensed under the Creative Commons Attribution 4.0 International license.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 07:16, 18 March 2024 | ![]() | 5,504 × 8,256 (95.55 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://www.eso.org/public/archives/images/original/potw2412a.tif via Commons:Spacemedia |
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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.
Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON Z 9 |
Author | ALBERTO GHIZZI PANIZZA |
Copyright holder | ALBERTO GHIZZI PANIZZA |
Exposure time | 15/1 sec (15) |
F-number | f/1.8 |
ISO speed rating | 6,400 |
Date and time of data generation | 22:31, 10 December 2022 |
Lens focal length | 20 mm |
Latitude | 29° 15′ 47.42″ S |
Longitude | 70° 43′ 56.47″ W |
Altitude | 2,368 meters above sea level |
Width | 5,504 px |
Height | 8,256 px |
Bits per component |
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Compression scheme | LZW |
Pixel composition | RGB |
Image data location | 952 |
Orientation | Normal |
Number of components | 3 |
Bytes per compressed strip | 100,166,136 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | ACDSee Ultimate 2023 |
File change date and time | 19:33, 8 January 2023 |
Exposure Program | Manual |
Exif version | 2.31 |
Date and time of digitizing | 22:31, 10 December 2022 |
APEX shutter speed | −3.906891 |
APEX aperture | 1.695994 |
APEX exposure bias | −2 |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
DateTimeOriginal subseconds | 68 |
Color space | Uncalibrated |
Focal plane X resolution | 2,301.3246154785 |
Focal plane Y resolution | 2,301.3246154785 |
Focal plane resolution unit | 3 |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Custom process |
Exposure mode | Manual exposure |
White balance | Manual white balance |
Focal length in 35 mm film | 20 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS time (atomic clock) | 01:31 |
Satellites used for measurement | 14 |
GPS date | 11 December 2022 |
GPS tag version | 0.0.3.2 |