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Post Info TOPIC: March 21st
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The Total Eclipse of the Moon 1913, March 21
http://adsabs.harvard.edu/full/1913PA.....21..277B



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The Indira Gandhi Planetarium was established on the 21st March 1993
http://en.wikipedia.org/wiki/Patna_Planetarium



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Mother's Day in most Arab countries is celebrated on the 21st March.

Harmony Day is held in Australia on 21 March. 
http://astronomy.activeboard.com/t48364676/harmony-day/

World Poetry Day is on 21 March
http://en.wikipedia.org/wiki/World_Poetry_Day

Earth Day was first celebrated on March 21, 1970 
http://astronomy.activeboard.com/t27225241/earth-day/

Planck day: On 21 March 2013, the Planck mission's all-sky map of the cosmic microwave background was released
http://en.wikipedia.org/wiki/Planck_(spacecraft)



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The Ranger 9 spacecraft was launched on the 21st March 1965.
http://en.wikipedia.org/wiki/Ranger_9

The first Jumpseat satellite was launched from Vandenberg Air Force Base on a Titan IIIB launch vehicle with Agena D boosters on 21 March 1971
http://en.wikipedia.org/wiki/Jumpseat_(satellite)

Breitling Orbiter 3 was the first balloon to fly around the world non-stop in 1999. 
http://astronomy.activeboard.com/t48364789/breitling-orbiter-3/

The IRS-P3 satellite was launched on the 21st March 1996
http://en.wikipedia.org/wiki/IRS-P3



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Rudolf Nebel (March 21, 1894 - September 18, 1978) was a spaceflight advocate
http://en.wikipedia.org/wiki/Rudolf_Nebel

Dirk Dries David Damiaan, Viscount Frimout (born 21 March 1941) is an astrophysicist for the European Space Agency. 
http://en.wikipedia.org/wiki/Dirk_Frimout

Alexander Fedorovich Mozhaysky (March 21, 1825 - 1 April 1890), was a Russian naval officer, aviation pioneer
http://en.wikipedia.org/wiki/Alexander_Mozhaysky

Maurice Alain Farman (March 21, 1877 - February 25, 1964) was an Anglo-French Grand Prix champion.
https://en.wikipedia.org/wiki/Maurice_Farman

George Witchell (1728 - 1785) was an astronomer and mathematician
http://astronomy.activeboard.com/t53058787/george-witchell/

Jean-Baptiste Joseph Fourier (21 March 1768 - 16 May 1830) was a French mathematician and physicist
https://en.wikipedia.org/wiki/Joseph_Fourier

Pietro Tacchini (March 21, 1838 - March 24, 1905) was an Italian astronomer.
http://en.wikipedia.org/wiki/Pietro_Tacchini

Guillermo Haro (March 21, 1913 - April 26, 1988) was a Mexican astronomer.
http://en.wikipedia.org/wiki/Guillermo_Haro

Halton Christian Arp (March 21, 1927 - December 28, 2013) was an American astronomer.
http://en.wikipedia.org/wiki/Halton_Arp

Antonia Maury (March 21, 1866 - January 8, 1952) was an American astronomer who published an early catalogue of stellar spectra. 
http://en.wikipedia.org/wiki/Antonia_Maury



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NGC 2744 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t57083519/ngc-2744/

NGC 2774 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t57083511/ngc-2774/

NGC 2802 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t57083505/ngc-2802/

NGC 2803 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t57083489/ngc-2803/

NGC 2843 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t57083480/ngc-2843/

NGC 3303 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t33241866/ngc-3303/

NGC 3370 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t2950430/ngc-3370/

NGC 4126 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t57083419/ngc-4126/

NGC 4152 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t57083414/ngc-4152/

NGC 4350 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t57083408/ngc-4350/

NGC 4379 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t57083403/ngc-4379/

NGC 4489 was discovered by William Herschel using on the 21st March 1784.
http://astronomy.activeboard.com/t57083393/ngc-4489/

NGC 4498 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t57083389/ngc-4498/

NGC 4502 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t57083377/ngc-4502/

NGC 4515 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t57083368/ngc-4515/

NGC 4540 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t57083362/ngc-4540/

NGC 4710 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t32352136/ngc-4710/

NGC 4758 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t57083339/ngc-4758/

NGC 5249 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t57083331/ngc-5249/

NGC 5962 was discovered by William Herschel using on the 21st March 1784.
http://astronomy.activeboard.com/t57083320/ngc-5962/

NGC 5996 was discovered by William Herschel on the 21st March 1784.
http://astronomy.activeboard.com/t57083308/ngc-5996/



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Tethys, a moon of Saturn, was discovered by Giovanni Cassini on the 21st March 1684
http://en.wikipedia.org/wiki/Sidera_Lodoicea

Dione, a moon of Saturn, was discovered by Giovanni Cassini on the 21st March 1684
http://en.wikipedia.org/wiki/Sidera_Lodoicea

French astronomer Frédéric Petit in 1846 announced that he had discovered a second moon around the Earth.
http://en.wikipedia.org/wiki/Other_moons_of_Earth#Petit.27s_moon



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Asteroid (194) Prokne was discovered by German-American astronomer C. H. F. Peters on March 21, 1879
http://en.wikipedia.org/wiki/194_Prokne

Asteroid (329) Svea was discovered by Max Wolf on March 21, 1892
http://en.wikipedia.org/wiki/329_Svea

Asteroid (365) Corduba was discovered by the French astronomer Auguste Charlois on March 21, 1893
http://en.wikipedia.org/wiki/365_Corduba

Asteroid (366) Vincentina was discovered on March 21, 1893
http://en.wikipedia.org/wiki/366_Vincentina

Asteroid (402) Chloë was discovered by Auguste Charlois on March 21, 1895
http://en.wikipedia.org/wiki/402_Chlo%C3%AB

Asteroid (631) Philippina was discovered by German astronomer August Kopff on March 21, 1907.
http://en.wikipedia.org/wiki/631_Philippina

Preliminary reports had asteroid (143649) 2003 QQ47 a chance of impacting into Earth on March 21, 2014.
http://astronomy.activeboard.com/t57083537/asteroid-143649-2003-qq47/



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The annual Delta Pavonids meteor shower appears from 21 March to 8 April
http://en.wikipedia.org/wiki/Pavo_(constellation)#Meteor_showers

Connecticut Meteor of 21 March 1813
http://astronomy.activeboard.com/t57084002/meteor-of-21-march-1813/

The Ch'ing-yang event of 1490 is a presumed meteor shower in the Chinese province of Shaanxi.
http://en.wikipedia.org/wiki/1490_Ch%27ing-yang_event



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Meteorites

No historic meteorite falls today



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