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Legendary
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Join Date: Aug 2006
Posts: 10,329
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Legendary
Join Date: Aug 2006
Posts: 10,329
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2013 August 20: Venus and the Triply Ultraviolet Sun
Quote:
Originally Posted by Brokenfriend
This is a cool picture of the Sun in Ultraviolet,and Venus passing by the front of it.
2013 August 20: Venus and the Triply Ultraviolet Sun.
BF  |
Wow that is amazing!
Archive link: http://apod.nasa.gov/apod/ap130820.html
Quote:
Explanation: An unusual type of solar eclipse occurred last year. Usually it is the Earth's Moon that eclipses the Sun. Last June, most unusually, the planet Venus took a turn. Like a solar eclipse by the Moon, the phase of Venus became a continually thinner crescent as Venus became increasingly better aligned with the Sun. Eventually the alignment became perfect and the phase of Venus dropped to zero. The dark spot of Venus crossed our parent star. The situation could technically be labeled a Venusian annular eclipse with an extraordinarily large ring of fire. Pictured above during the occultation, the Sun was imaged in three colors of ultraviolet light by the Earth-orbiting Solar Dynamics Observatory, with the dark region toward the right corresponding to a coronal hole. Hours later, as Venus continued in its orbit, a slight crescent phase appeared again. The next Venusian solar eclipse will occur in 2117.
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