Word: nebula
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...took 2777 stellar photographs in Cambridge and nearly 2000 in Peru. By means of these no less than seven new variable stars have been discovered, and the number of stars of the fifth type has been increased by eight, making the total number forty-five. The spectrum of the nebula surrounding some of the stars is unlike that of any other gaseous nebula...
...Lick telescope, and the results obtained by means of the best English and American telescopes shows that the Lick lens is immeasurably superior to any of its predecessors. Formerly there was supposed to be only one star, called Alpha Lyre or Vega, within the ring of the nebula of the constellation Lyra, but recently five stars have been clearly defined within this ring, and an immense amount of detail concerning the structure of the nebula itself brought out. The nebula of the constellation of the Dragon has been shown to have an unsuspected construction. It seems...