File:050128quad-from-crane.jpg
Size of this preview: 800 × 533 pixels. Other resolutions: 320 × 213 pixels | 640 × 427 pixels | 1,024 × 683 pixels | 1,280 × 853 pixels | 2,560 × 1,707 pixels | 3,072 × 2,048 pixels.
Original file (3,072 × 2,048 pixels, file size: 1.72 MB, MIME type: image/jpeg)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description | A photograph of the en:QUaD telescope inside its groundshield taken from a crane above the telescope. The telescope structure consists of a en:cassegrain optical system mated to the existing DASI mount surrounded by a reflective groundshield which limits signal contamination by the warm ~200K ground below. The secondary mirror is suspended by a large white foam cone, which is transparent to microwave frequency radiation. |
| Date | 23 May 2007 (original upload date) |
| Source | Transferred from en.wikipedia to Commons. |
| Author | Rfriedman81 at English Wikipedia |
Licensing
|
This work has been released into the public domain by its author, rfriedman81 at English Wikipedia. This applies worldwide. In some countries this may not be legally possible; if so: rfriedman81 grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
- 2007-05-23 15:12 Rfriedman81 3072×2048×8 (1804884 bytes) A photograph of the [[QUaD]] telescope inside its groundshield take from a crane above the telescope. The telescope structure consists of a [[cassegrain]] optical system mated to the existing [[DASI]] mount surrounded by a reflective groundshield which l
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:16, 31 August 2007 | | 3,072 × 2,048 (1.72 MB) | Liftarn | {{Information |Description=A photograph of the en:QUaD telescope inside its groundshield taken from a crane above the telescope. The telescope structure consists of a en:cassegrain optical system mated to the existing [[:en:Degree_Angular_Scale |
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