Thursday, 18 July, 2019

Day: June 2, 2017

NGC 3918

NGC 3918

NGC 3918. NGC 3918 is the brightest planetary nebula in the southern constellation of Centaurus, nicknamed the “Blue Planetary” or “The Southerner”. It was discovered by Sir John Herschel in March 1834, and around 4900 light-years from Earth. The slightly oval diameter is telescopically between 8 and 10 arcsec, though deep images extends this to about

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