7 years ago, in 1904:
At the Lick Observatory, Charles D. Perrine discovers Himalia, the largest irregular satellite of Jupiter.
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121 years ago, in 1790:
William Herschel discovers NGC 12, a spiral galaxy in the Pisces constellation.
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8 years ago, in 1903:
The Wright brothers make the first powered flight.
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128 years ago, in 1783:
Thinking it to be a globular cluster, William Herschel discovers the spiral galaxy NGC 2775 in the constellation of Cancer.
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11 years ago, in 1900:
Michel Giacobini discovers comet Giacobini–Zinner, which was later a target for the ICE spacecraft.
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123 years ago, in 1788:
Caroline Herschel discovers her second comet, Comet 35P/Herschel-Rigollet.
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943 years ago, in 968:
The first clear description of the corona seen during a total eclipse is given by a chronicler in Constantinople.
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239 years ago, in 1672:
Giovanni Cassini discovers one of Saturn's moons, Rhea.
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It's been 3999 days
