File:C G-K - DSC 0421.jpg
No higher resolution available.
C_G-K_-_DSC_0421.jpg (༤༠༨ × ༥༠༠ བརྙན་རྒྱུ།, ཡིག་ཆ་ཆེ་ཆུང།: ༩༥ KB, རྣམ་གཞག།: image/jpeg)
| Description |
English: Closeup front view of one antenna of the Allan Telescope Array, a radio telescope for combined radio astronomy and SETI (Search for Extraterrestrial Intelligence) research being built by the University of California at Berkeley, outside San Francisco. The first phase, consisting of 42 6 meter dish antennas like the one shown here, was completed in 2007. Eventually it will have 350 antennas. This type of antenna is called an offset Gregorian design. The incoming radio waves are reflected by the large parabolic dish onto a secondary concave parabolic reflector in front of the dish, and then into a feed horn. A metal shroud can be seen along the bottom of the secondary reflector which shields the antenna from ground noise. It covers the frequency range from 0.5 to 11.2 GHz. |
| Date | |
| Source | https://www.flickr.com/photos/cgk/1558787110/ |
| Author | Colby Gutierrez-Kraybill |
| Permission (Reusing this file) |
  This file is licensed under the Creative Commons Attribution 3.0 Unported license.
|
ཡིག་ཆའི་ལོ་རྒྱུས།
ཟླ་ཚེས་/དུས་ཚོད་གནུན་ཏེ་རྩོམ་ཡིག་ལ་ལྟ་བ།
| ཚེས་གྲངས། / དུས་ཚོད། | བསྡུས་དོན། | ཚད། | སྤྱོད་མི། | བསམ་ཚུལ། | |
|---|---|---|---|---|---|
| ད་ལྟ། | ༢༢:༤༨, ༢༠ ཟླ་དགུ་བ། ༢༠༡༠ | | ༤༠༨ × ༥༠༠ (༩༥ KB) | Noonehasthisnameithink | {{Information |Description={{en|1=The Allen Telescope Array.}} |Source=http://www.flickr.com/photos/cgk/1558787110/ |Author=[http://www.flickr.com/people/69043449@N00 Colby Gutierrez-Kraybill] |Date=2007-10-11 |Permission={{cc-by-3.0}} |other_versions= } |
ཡིག་ཆ་བེད་སྤྱོད་ཁུལ།
There are no pages that use this file.
Global file usage
The following other wikis use this file:
- Usage on af.wikipedia.org
- Usage on ar.wikipedia.org
- Usage on cs.wikipedia.org
- Usage on el.wikipedia.org
- Usage on en.wikipedia.org
- Usage on es.wikipedia.org
- Usage on eu.wikipedia.org
- Usage on fa.wikipedia.org
- Usage on fr.wikipedia.org
- Usage on gv.wikipedia.org
- Usage on id.wikipedia.org
- Usage on it.wikipedia.org
- Usage on ja.wikipedia.org
- Usage on kk.wikipedia.org
- Usage on km.wikipedia.org
- Usage on ko.wikipedia.org
- Usage on pcm.wikipedia.org
- Usage on pt.wikipedia.org
- Usage on ro.wikipedia.org
- Usage on ru.wikipedia.org
- Usage on simple.wikipedia.org
- Usage on sr.wikipedia.org
- Usage on ta.wikipedia.org
- Usage on uk.wikipedia.org
- Usage on ur.wikipedia.org
- Usage on vi.wikipedia.org
- Usage on www.wikidata.org
- Usage on zh-min-nan.wikipedia.org
- Usage on zh.wikipedia.org
