Vanishing stars. (variable stars)(Night Watchman)(Column) From: Discover | Date: October 1, 1995| Author: Berman, Bob | COPYRIGHT 1995 Discover. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

October is a good time to observe variable stars, which change their brightness by orders of magnitude sometimes as often as every few days. Members of the American Assn of Variable Star Observers tracks their periods. The stars Algol, Chi Cygni, Delta Cephei and Mira are described.

WE MAY IMAGINE STARS TO BE UNCHANGing beacons of stability, but of course they're not. Their habitual reassuring return notwithstanding, the seasonal constellations harbor stars that are not the same ea...

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