Difference between revisions 1814134 and 1814136 on enwikiversity

[[Image:Skylab-73-HC-440HR.jpg|thumb|right|200px|The Saturn V SA-513 lifts off to boost the Skylab Orbital Workshop into Earth orbit on March 14, 1973. Credit: NASA.]]
[[Astronomy]] is performed by location and is subject to local conditions. The shapes and sizes of observatories have changed over time, as have their altitude. The motivations for putting an observatory manned or unmanned at different altitudes has led to a great variety in '''lofting technology'''.
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|url=http://www.ontariosciencecentre.ca/school/clc/visits/glossary.asp
|title=Ontario Science Centre website }}</ref> and that is held in place by the [[w:gravity|gravity]] of the body is called an '''atmosphere'''.

'''Def.''' "[t]he [[wikt:gas|gases]] surrounding the [[Earth]] or any [[wikt:astronomical|astronomical]] body"<ref name=AtmosphereWikt>{{ cite 
web
|title=atmosphere, In: ''Wiktionary''book
|author=[[wikt:User:212.159.113.112|212.159.113.112]]
|title=atmosphere
|publisher=Wikimedia Foundation, Inc
|location=San Francisco, California
|month=November 29,6 May
|year=201203
|url=https://en.wiktionary.org/wiki/atmosphere
|accessdate=2012-16-02-056 }}</ref> is called an '''atmosphere'''.

To overcome the limitations of observing in portions on either side of the visual, telescopes and spectrometers are lofted above the atmosphere for short times on board [[w:sounding rocket|sounding rocket]]s and balloons. Longer observing times are available with satellites placed into orbit around the Earth, the Sun, or other [[w:solar system|solar system]] bodies.

(contracted; show full)[[Category:Astronomy learning projects/Lectures]]
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