“61 Cygni”的意思、由来-百科全书

词条	61 Cygni
释义	61 Cygni astronomy first star whose distance from Earth (about 11 light-years) was measured (by Friedrich Wilhelm Bessel (Bessel, Friedrich Wilhelm) in 1838). The star is a visual binary the components of which revolve around each other in a period of about 650 years. They are of fifth and sixth magnitudes.
随便看	Saint-Dizier Saint-Dié Saint Dominic Saint Drexel, Katharine Saint Dunstan of Canterbury Sainte-Anne-de-Beaupré Sainte-Beuve, Charles-Augustin Sainte-Claire Deville, Henri-Étienne Saint Edmund Campion Saint Edmund of Abington Saint Edmundsbury Saint Edward's Crown Saint Edward's sapphire Sainte-Foy Sainte Genevieve Saint Eleutherius Saint Elias, Mount Saint Elias Mountains Saint Elizabeth Ann Seton Saint Elizabeth of Hungary Saint Elizabeth of Portugal Saint Elmo's fire Saint Ephraem Syrus Saint Epiphanius of Constantia Saint Erasmus

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