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Birthday · June 15, 2004

A Rare Annular Venusian Solar Eclipse

June 15, 2004

Billions of years of cosmic evolution — the birth and death of stars, the slow coalescence of planets, the patient unfolding of life — all...

A Rare Annular Venusian Solar Eclipse

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APOD published June 15, 2004. Credit: : Peter Lawrence. A publication-date match, not a photo taken on your date. Independent of NASA.

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A Rare Annular Venusian Solar Eclipse

Original APOD · June 15, 2004

An unusual type of solar eclipse occurred last week. Usually it is the Earth's Moon that eclipses the Sun. Last week, for the first time in over 100 years, 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. From above the thick cloud tops of Venus, the Earth appeared in its fullest phase, brighter in the Venusian sky than even Mars appeared from Earth last August. Hours later, as Venus continued in its orbit, a slight crescent phase appeared again. The next Venusian solar eclipse will occur in 2012.

Image credit: : Peter Lawrence

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