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Capella

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description Capella Overview

Capella, designated Alpha Aurigae, is the brightest star in the constellation Auriga and the third-brightest in the northern celestial hemisphere. Located roughly 43 light-years from Earth, it is actually a quadruple star system composed of two sets of binary stars. The two largest stars in the system are G-type evolved giants that have exhausted the hydrogen in their cores. Its proximity to the north celestial pole means it remains visible for much of the year in the northern hemisphere, making it a key navigational reference.

help Capella FAQ

How far is Capella from Earth?

Capella is approximately 43 light-years from Earth, making it one of the closer bright stars visible in the night sky. Its relative proximity contributes to its apparent brightness as seen from our planet.

What constellation is Capella in?

Capella is the brightest star in the constellation Auriga, the Charioteer. It appears as a prominent yellowish star in the northern sky during winter months and is part of the Winter Hexagon asterism.

Is Capella a single star or a multiple star system?

Capella is actually a system of four stars, consisting of two giant binary pairs orbiting each other. The primary pair comprises two yellow giants in a very close orbit, while a second pair of red dwarf stars orbits at a much greater distance.

How bright is Capella compared to other stars?

Capella is the sixth brightest star in the night sky and the third brightest in the northern celestial hemisphere. It has an apparent magnitude of approximately 0.08, making it brighter than well-known stars like Rigel and Betelgeuse.

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