File:Equatorial mount principle.svg

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English: Principle of operation of an equatorial mount to keep a telescope pointing in the same direction. The black spots denote rotation axes seen end-on. The green telescope is rotated at the same rate as the earth but in the opposite direction, while the red telescope is not driven.
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This is a retouched picture, which means that it has been digitally altered from its original version. The original can be viewed here: North pole february ice-pack 1978-2002.png: .

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Original upload log

This image is a derivative work of the following images:

  • File:North_pole_february_ice-pack_1978-2002.png licensed with Cc-by-sa-3.0-migrated, Cc-by-sa-3.0-migrated-with-disclaimers, GFDL, GFDL-en
    • 2009-10-09T20:57:56Z File Upload Bot (Magnus Manske) 976x974 (99943 Bytes) {{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|Arctic ice-pack in February This map was initially created using [http:

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Category:Equatorial mounts Category:User:cmglee
Category:CC-BY-SA-3.0-migrated Category:CC-BY-SA-3.0-migrated-with-disclaimers Category:Equatorial mounts Category:GFDL Category:GFDL-en Category:License migration redundant Category:SVG retouched pictures from raster Category:Self-published work Category:Uploaded with derivativeFX Category:User:cmglee