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News for Norther Colorado and the world

Tuesday, August 22, 2017

Posts Tagged ‘Cepheus’

EarthSky Tonight—Nov 6, A famous variable star in

EarthSky Tonight—Nov 6, A famous variable star in the constellation Cepheus

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Delta Cephei is a famous variable star in the constellation Cepheus. With clock-like precision, this rather faint star doubles in brightness every 5.36 days. You can see the brightness change best if you contrast this star to others nearby. The constellation Cepheus requires a dark sky to be seen, but if you can spot this constellation, you might be able to find the variable star. You will find it high in your northern sky on ... Full Story

Earthsky Tonight—August 5, Constellation Cepheus

Earthsky Tonight—August 5, Constellation Cepheus looks like a house

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org The constellation Cepheus represents a King. It is faint, but its distinctive shape makes it easy to locate, if you look in the north on August evenings. Cepheus resembles the stick house we all drew as children – and that children today still draw – with a square for the base and a triangle for the roof. In the case of Cepheus, the tip of the roof (a star known as Gamma Cephei, or Er Rai) points generally northward. In the ... Full Story