File:The NTT comes to life (27464992461).jpg
Original file (1,280 × 2,176 pixels, file size: 427 KB, MIME type: image/jpeg)
Captions
Summary[edit]
DescriptionThe NTT comes to life (27464992461).jpg |
In this picture, the enclosure for ESO’s New Technology Telescope (NTT) has opened its angled doors to reveal a long slice of the southern sky. The sky is freckled by stars, while the moon lights up the inner walls of the NTT dome, casting a shadow over the 3.6-metre telescope. At the top of the telescope we can make out the secondary mirror cell of the telescope, held in a ring structure and supported on struts above the primary mirror. More information: <a href="http://www.eso.org/public/images/potw1623a/" rel="nofollow">www.eso.org/public/images/potw1623a/</a> Credit: ESO/B. Tafreshi (twanight.org) |
Source | The NTT comes to life |
Author | European Southern Observatory |
Licensing[edit]
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
This image was originally posted to Flickr by European Southern Observatory at https://flickr.com/photos/51207680@N04/27464992461. It was reviewed on 7 November 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
7 November 2018
This file was uploaded in a mass upload from flickr and may not have been fully examined before uploading. Before removing this template, please do the following:
English ∙ Deutsch ∙ +/− |
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 10:26, 7 November 2018 | 1,280 × 2,176 (427 KB) | Jo-Jo Eumerus (talk | contribs) | Transferred from Flickr via #flickr2commons |
You cannot overwrite this file.
File usage on Commons
There are no pages that 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.
Credit/Provider | ESO/B. Tafreshi (twanight.org) |
---|---|
Source | European Southern Observatory |
Short title |
|
Image title |
|
Usage terms |
|
Date and time of data generation | 06:00, 23 May 2116 |
JPEG file comment | In this picture, the enclosure for ESO’s New Technology Telescope (NTT) has opened its angled doors to reveal a long slice of the southern sky. The sky is freckled by stars, while the moon lights up the inner walls of the NTT dome, casting a shadow over the 3.6-metre telescope. At the top of the telescope we can make out the secondary mirror cell of the telescope, held in a ring structure and supported on struts above the primary mirror. One of the NTT’s remarkable aspects is that it employs active optics, in which the primary mirror is flexible and its shape is actively adjusted during observations by actuators to preserve the optimal image quality. The position of the secondary mirror is also actively controlled in three directions. This technology, developed by ESO, is nowadays applied to all major modern telescopes, such as the Very Large Telescope at Cerro Paranal and the future European Extremely Large Telescope. The design of the octagonal enclosure housing the NTT is another technological breakthrough. The telescope dome is relatively small, and is ventilated by a system of flaps that makes air flow smoothly across the mirror, reducing turbulence and leading to sharper images. When the dome is opened, the telescope comes to life and moves across the sky to track astronomical objects. |
Keywords | New Technology Telescope |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIM version | 4 |