A coronagraph is a telescopic attachment designed specifically to block out the harsh, direct light from a star, so that nearby objects can be resolved without burning out the telescope's optics. The name comes from the fact that the first coronagraphs were used to image the corona of the sun. An example of a coronagraph imaging the suns corona and nearby phenomena. ... An example of a coronagraph imaging the suns corona and nearby phenomena. ... The Solar and Heliospheric Observatory (SOHO) is a spacecraft launched in 1995 to study the sun. ... Jump to: navigation, search NASA Logo Listen to this article · (info) This audio file was created from the revision dated 2005-09-01, and does not reflect subsequent edits to the article. ... For other meanings, see corona (disambiguation) The corona is the luminous atmosphere of the Sun extending millions of kilometres into space, most easily seen during a total solar eclipse, but also observable in a coronagraph. ... Jump to: navigation, search The Sun is the star at the centre of our Solar system. ...
Coronagraphs are useful for imaging coronas, near-solar comets, and even extrasolar planets. Photo of the comet Hale-Bopp above a tree. ... Infrared Image of a possible extrasolar planet (lower left) in the Constellation Taurus, taken by the Hubble Space Telescope. ...
The coronagraph was introduced in 1930 by the astronomerBernard Lyot. Since then, missions such as NASA-ESA's SOHO, SPARTAN, and Skylab have used coronagraphs to study the sun. A coronagraph concept is currently being studied to fly on the Terrestrial Planet Finder mission. An astronomer or astrophysicist is a scientist whose area of research is astronomy or astrophysics. ... Bernard Ferdinand Lyot (February 27, 1897 – April 2, 1952) was a French astronomer. ... The Solar and Heliospheric Observatory (SOHO) is a spacecraft launched in 1995 to study the sun. ... Jump to: navigation, search Drawing of Skylab with components labelled Skylab was the United Statess first space station. ... The Terrestrial Planet Finder (TPF) is a proposed NASA telescope system capable of detecting extrasolar terrestrial planets. ...
Other example images
Here are some example images from NASA's web site.
The coronagraph aboard this Solar and Heliospheric Observatory satellite is a dramatic breakthrough in NOAA space weather observers' ability to forecast the impact of coronal mass ejections on Earth.
The coronagraph is a special type of telescope that uses a solid disk (known as an occulter disk) to block direct sunlight and create an artifical eclipse for the observer peering through the instrument.
Inventing the coronagraph marked the beginning of systematic study of the Sun’scorona.
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