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Original file ‎(1,493 × 1,914 pixels, file size: 256 KB, MIME type: image/jpeg)

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English: Model of Telescope with which William Herschel discovered Uranus. In the Herschel Museum of Astronomy in Bath. The secret of Herschel's success as an observer was the power and magnification of his telescopes. This seven foot long, six inch diameter, ƒ14 reflector was particularly favoured. Its main mirror at the bottom of the tube and the secondary mirror near the top in front of the ocular were made of speculum metal. It was with a seven foot telescope that Herschel made the discovery of the planet Uranus in 1781
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Author Mike Young

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author name string: Mike Young
URL: https://commons.wikimedia.org/wiki/user:Mike_Young
Wikimedia username: Mike Young

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copyrighted, dedicated to the public domain by copyright holder

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inception

21 August 2009

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original creation by uploader

exposure time

0.01666666666666666666 second

f-number

2.8

focal length

6.3 millimetre

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100

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Date/TimeThumbnailDimensionsUserComment
current08:34, 2 December 2010Thumbnail for version as of 08:34, 2 December 20101,493 × 1,914 (256 KB)Mike YoungDidn't seem to work reupload
08:30, 2 December 2010Thumbnail for version as of 08:30, 2 December 20101,493 × 1,914 (256 KB)Mike YoungRemoved protruberance on the right hand side of the tall right upright member above the tube that is not part of the instrument. Added casters
05:10, 22 August 2009Thumbnail for version as of 05:10, 22 August 20091,493 × 1,914 (216 KB)Mike Young{{Information |Description={{en|1=Model of Telescope with which William Herschel discovered Uranus. In the William Herschel museum in Bath }} |Source=Own work by uploader |Author=Mike Young |Date=2009-08-21 |Permission=
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source: https://en.wikipedia.org/wiki/File:HerschelTelescope.jpg

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