Difference between revisions 1813696 and 1813697 on enwikiversity

< previous diff
next diff >
Lofting technology
[[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'''.
{{clear}}

(contracted; show full)
| accessdate=22 December 2005 }}</ref>
* [[w:Troposphere|Troposphere]] &mdash; surface to 8,000 m at the poles &ndash; 18,000 m at the [[w:equator|equator]], ending at the Tropopause.
* [[w:Stratosphere|Stratosphere]] &mdash; Troposphere to 50 km
* [[w:Mesosphere|Mesosphere]] &mdash; Stratosphere to 85 km
* [[w:Thermosphere|Thermosphere]] &mdash; Mesosphere to 675 km
* [[w:Exosphere|Exosphere]] &mdash; Thermosphere to 10,000 km.
<ref name=Altitude/>

==Earth radius==
{{main|Distances/Radius/Earth|Earth radius}}
[[Image:Lowresgh.jpg|thumb|right|400px|The diagram shows variation from the ellipsoid and sea level. Credit: .]]
(contracted; show full)[[Category:Astronomy learning projects/Lectures]]
[[Category:Astronomy/Lectures]]
[[Category:Astrophysics/Lectures]]
[[Category:History/Lectures]]
[[Category:Radiation astronomy/Lectures]]
[[Category:Resources last modified in February 2018]]
[[Category:Technology/Lectures]]
[[Category:Vehicles/Lectures]]