About: FOCAL (spacecraft)

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FOCAL (an acronym for Fast Outgoing Cyclopean Astronomical Lens) is a proposed space telescope that would use the Sun as a gravity lens. The gravitational lens effect was first derived by Albert Einstein, and the concept of a mission to the solar gravitational lens was first suggested by professor , and analyzed further by Italian astronomer Claudio Maccone and others.

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dbo:abstract	FOCAL (an acronym for Fast Outgoing Cyclopean Astronomical Lens) is a proposed space telescope that would use the Sun as a gravity lens. The gravitational lens effect was first derived by Albert Einstein, and the concept of a mission to the solar gravitational lens was first suggested by professor , and analyzed further by Italian astronomer Claudio Maccone and others. In order to use the Sun as a gravity lens, it would be necessary to send the telescope to a minimum distance of 550 astronomical units away from the Sun, enabling very high signal amplifications: for example, at the 203 GHz wavelength, amplification of 1.3·1015. Maccone suggests that this should be enough to obtain detailed images of the surfaces of extrasolar planets. (en)
dbo:wikiPageExternalLink	https://www.centauri-dreams.org/2006/08/18/the-focal-mission-to-the-suns-gravity-lens/ https://www.technologyreview.com/2016/04/26/8417/a-space-mission-to-the-gravitational-focus-of-the-sun/
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rdfs:comment	FOCAL (an acronym for Fast Outgoing Cyclopean Astronomical Lens) is a proposed space telescope that would use the Sun as a gravity lens. The gravitational lens effect was first derived by Albert Einstein, and the concept of a mission to the solar gravitational lens was first suggested by professor , and analyzed further by Italian astronomer Claudio Maccone and others. (en)
rdfs:label	FOCAL (spacecraft) (en)
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