It's been 4015 days
since New Horizons'
closest approach
to Pluto on
July 14, 2015.
It's been 2748 days
since New Horizons'
closest approach
to 2014 MU69 on
January 1, 2019.
Questions? Comments?
Send me an email:
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Current Date
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20th day of Summer
73 days until Fall
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Sunday
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Monday
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Tuesday
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Wednesday
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Thursday
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Friday
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Saturday
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46 years ago, in 1843:
The Great Comet of 1843 is first observed.
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89 years ago, in 1800:
While testing filters for observing the Sun, William Herschel discovers infrared radiation in sunlight.
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325 years ago, in 1564:
Galileo Galilei is born in Pisa, Duchy of Florence, Italy.
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44 years ago, in 1845:
The 72-inch Rosse (Leviathan of Parsonstown) Telescope sees "first light".
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416 years ago, in 1473:
Nicolaus Copernicus is born in Thorn, Royal Prussia, Kingdom of Poland.
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102 years ago, in 1787:
William Herschel's 40-foot (Great Forty-Foot) Telescope sees "first light".
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273 years ago, in 1616:
Galileo Galilei is ordered by the Inquisition to abandon the Copernican theories.
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106 years ago, in 1783:
NGC 2360 (Caroline's Cluster), an open cluster in the constellation Canis Major, is discovered by Caroline Herschel.
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46 years ago, in 1843:
The Great Comet of 1843 makes a very close perihelion of less than 515,000 miles (830,000 km).
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333 years ago, in 1556:
The German astronomer Joachim Heller discovers the Great Comet of 1556 (C/1556 D1).
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