A fourth-century supernova

These delicate yet fast-moving filaments of gas belong to a supernova remnant designated as 1E 0102.2-7219, which resulted from the destruction of a massive star long ago in the Small Magellanic Cloud, 200,000 light years away.

101 Must-See Cosmic Objects: 47 Tucanae

Johann Elbert Bode logged this particular object 47th (in order of right ascension) in the Toucan in his 1801 catalog of stars, although he didn’t observe it himself. He instead picked it up from Nicolas Louis de Lacaille’s catalog. At magnitude 4.1, 47 Tucanae is visible to the naked eye. […]