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Caph

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description Caph Overview

Caph, officially designated as Beta Cassiopeiae, is a yellow-white giant star located approximately 54 light-years from Earth in the constellation Cassiopeia. It is one of the five vertices forming the distinctive 'W' asterism associated with the constellation, making it easily identifiable in the northern sky. Astronomers classify Caph as a Delta Scuti variable, meaning its luminosity subtly fluctuates over a few hours due to periodic pulsations in its outer atmosphere.

help Caph FAQ

Where can you find the star Caph in the night sky?

Caph, designated Beta Cassiopeiae, is one of the five major stars forming the distinctive 'W' shape in the constellation Cassiopeia. It is located at the top right of the W when viewed from the Northern Hemisphere.

What type of star is Caph?

Caph is a yellow-white pulsating giant star located about 54 light-years from Earth. It is classified as a Delta Scuti variable, meaning its brightness fluctuates slightly over a few hours.

What is Caph's historical significance in astronomy?

Caph was historically used by astronomers to help define sidereal time because of its specific position in the sky. The star's rapid movement across the meridian made it a useful clock-star for early observations.

How does Caph compare in size to the Sun?

Caph is much larger than the Sun, with a radius estimated to be about three to four times that of our home star. Despite its giant classification, it remains physically smaller than many red supergiants in the galaxy.

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