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Southern Star Charts
The Planets and the Ecliptic
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21 at midnight Alpha amateur Antares appear April 21 AQUARIUS asteroid astronomers atmosphere August 21 Australia bright CANIS CAPRICORNUS CARINA Cephei chromosphere civil twilight COMA constellation crater December 21 degrees detected diameter disk distance dust Earth eclipse ecliptic February 21 Figure filament filter Geminids greatest eastern elongation halley's comet horizon Hubble HYDRA inferior conjunction infrared January 21 July 21 June 21 Jupiter kilometres known light light-years linear longitude luminosity magnitude MAJOR March 21 Mars Mercury meteorite minor planets month Moon morning object naked eye Nebula Neptune northern temperate latitudes November 21 Observatory observers in northern occultations October 21 Open cluster OPHIUCHUS opposition optical orbit Palomar PEGASUS perihelion period photoelectric photographs photometer planetary prominences radio stars redshift rings rotation satellites Saturn SCORPIUS seen September 21 Solar System south-eastern sky Southern Hemisphere spectrum spiral galaxies star charts sunspot surface tektites telescope Uranus URSA variable Venus visible