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Astronomy Picture of the Day - 3 ATs
NASA ^ | 4 May, 2024 | Image Credit & Copyright: Yuri Beletsky (Carnegie Las Campanas Observatory, TWAN)

Posted on 05/04/2024 4:16:29 PM PDT by MtnClimber

Explanation: Despite their resemblance to R2D2, these three are not the droids you're looking for. Instead, the enclosures house 1.8 meter Auxiliary Telescopes (ATs) at Paranal Observatory in the Atacama Desert region of Chile. The ATs are designed to be used for interferometry, a technique for achieving extremely high resolution observations, in concert with the observatory's 8 meter Very Large Telescope units. A total of four ATs are operational, each fitted with a transporter that moves the telescope along a track allowing different arrays with the large unit telescopes. To work as an interferometer, the light from each telescope is brought to a common focal point by a system of mirrors in underground tunnels. Above these three ATs, the Large and Small Magellanic Clouds are the far, far away satellite galaxies of our own Milky Way. In the clear and otherwise dark southern skies, planet Earth's greenish atmospheric airglow stretches faintly along the horizon.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; nasa
To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail).

For more detail go to the link and click on the image for a high definition image. You can then move the magnifying glass cursor then click to zoom in and click again to zoom out. When zoomed in you can scan by moving the side bars on the bottom and right side of the image.

1 posted on 05/04/2024 4:16:29 PM PDT by MtnClimber
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To: MtnClimber

2 posted on 05/04/2024 4:16:48 PM PDT by MtnClimber (For photos of scenery and wildlife, click on my screen name for my FR home page. More photos added.)
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To: 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; AFPhys; Agatsu77; America_Right; ...
Pinging the APOD list

🪐 🌟 🌌 🍔


3 posted on 05/04/2024 4:17:36 PM PDT by MtnClimber (For photos of scenery and wildlife, click on my screen name for my FR home page. More photos added.)
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To: MtnClimber

Pretty sure that is Orion’s Belt on the upper left edge.


4 posted on 05/04/2024 4:27:40 PM PDT by HandyDandy (Borders, language and culture. Michael Savage)
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To: MtnClimber

In my best Tommy Chong voice, “Cosmic, Man”.


5 posted on 05/04/2024 4:28:57 PM PDT by ComputerGuy (Heavily-medicated for your protection)
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To: MtnClimber

Sure wish they would include some detail of camera, exposure time, etc.


6 posted on 05/04/2024 5:40:58 PM PDT by doorgunner69 (When tyranny becomes law, rebellion becomes duty)
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To: HandyDandy

Yes. Upside down from how we see it. Cool picture.


7 posted on 05/05/2024 6:35:39 AM PDT by telescope115 (I NEED MY SPACE!!! 🔭)
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To: doorgunner69

It would be nice. The link from the photographer’s name is a roadblock.


8 posted on 05/05/2024 6:38:35 AM PDT by telescope115 (I NEED MY SPACE!!! 🔭)
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