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HR 4072

Index HR 4072

HR 4072 (ET Ursae Majoris, HD 89822, HIP 50933) is a star in the constellation Ursa Major. [1]

6 relations: Alpha2 Canum Venaticorum variable, Apparent magnitude, Constellation, Epoch (astronomy), Star, Ursa Major.

Alpha2 Canum Venaticorum variable

An Alpha2 Canum Venaticorum variable (or α2 CVn variable) is a type of variable star.

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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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Constellation

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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Star

A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.

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Ursa Major

Ursa Major (also known as the Great Bear) is a constellation in the northern sky, whose associated mythology likely dates back into prehistory.

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Redirects here:

ET Ursae Majoris.

References

[1] https://en.wikipedia.org/wiki/HR_4072

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