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17 Crateris

Index 17 Crateris

17 Crateris (17 Crt) is a binary star in the constellation Hydra. [1]

5 relations: Apparent magnitude, Binary star, Constellation, Epoch (astronomy), Hydra (constellation).

Apparent magnitude

The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.

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Binary star

A binary star is a star system consisting of two stars orbiting around their common barycenter.

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A constellation is a group of stars that are considered to form imaginary outlines or meaningful patterns on the celestial sphere, typically representing animals, mythological people or gods, mythological creatures, or manufactured devices.

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Epoch (astronomy)

In astronomy, an epoch is a moment in time used as a reference point for some time-varying astronomical quantity, such as the celestial coordinates or elliptical orbital elements of a celestial body, because these are subject to perturbations and vary with time.

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Hydra (constellation)

Hydra is the largest of the 88 modern constellations, measuring 1303 square degrees.

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Redirects here:

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[1] https://en.wikipedia.org/wiki/17_Crateris

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