Southern Hemisphere

THE PHOENiX

features of interest zETA (Z) phoenicis 5 Both a double and a variable star. Small telescopes show it as a 4th-magnitude star with an 8th-magnitude companion. The brighter of the two stars is an eclipsing binary of the same type as Algol, varying between magnitudes 3.9 and 4.4 every 1.7 days.

Phoenix, which lies at the southern end of Eridanus, is the largest of the 12 constellations introduced by the Dutch explorers Pieter Dirkszoon Keyser and Frederick de Houtman. It represents the mythical bird that was reborn from the ashes of its predecessor.

220 THE NIGHT SKY _Hi_lLH_

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