Visible
Further information: Visible-light astronomyThe oldest form of astronomy, optical or visible-light astronomy extends from approximately 400 to 700 nm. Positioning an optical telescope in space means that the telescope does not see any atmospheric effects (see astronomical seeing), providing higher resolution images. Optical telescopes are used to look at stars, galaxies, planetary nebulae and protoplanetary disks, amongst many other things.
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The Hubble Space Telescope
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The Kepler Spacecraft Mission
| Name | Space Agency | Launch Date | Terminated | Location | Ref(s) |
|---|---|---|---|---|---|
| COROT | CNES & ESA | 27 December 2006 | — | Earth orbit (872–884 km) | |
| Hipparcos | ESA | 8 August 1989 | March 1993 | Earth orbit (223–35,632 km) | |
| Hubble Space Telescope | NASA | 24 April 1990 | — | Earth orbit (586.47–610.44 km) | |
| Kepler Mission | NASA | 6 March 2009 | — | Earth-trailing heliocentric orbit | |
| MOST | CSA | 30 June 2003 | — | Earth orbit (819–832 km) | |
| Swift Gamma Ray Burst Explorer | NASA | 20 November 2004 | — | Earth orbit (585–604 km) |
Read more about this topic: List Of Space Telescopes
Famous quotes containing the word visible:
“It is visible then that it was not any Heathen Religion or other Idolatrous Superstition, that first put Man upon crossing his Appetites and subduing his dearest Inclinations, but the skilful Management of wary Politicians; and the nearer we search into human Nature, the more we shall be convinced, that the Moral Virtues are the Political Offspring which Flattery begot upon Pride.”
—Bernard De Mandeville (1670–1733)
“And just as there are no words for the surface, that is,
No words to say what it really is, that it is not
Superficial but a visible core, then there is
No way out of the problem of pathos vs. experience.”
—John Ashbery (b. 1927)
“To him who, in the love of Nature, holds
Communion with her visible forms, she speaks
A various language: for his gayer hours”
—William Cullen Bryant (1794–1878)