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T Coronae Australis

T Coronae Australis (T CrA), is a young star in the constellation Corona Australis. [1]

6 relations: Circumstellar disk, Constellation, Corona Australis, Epoch (astronomy), International Celestial Reference System, Star.

Circumstellar disk

A circumstellar disk is a torus, pancake or ring-shaped accumulation of matter composed of gas, dust, planetesimals, asteroids or collision fragments in orbit around a star.

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Constellation

In modern astronomy, a constellation is a specific area of the celestial sphere as defined by the International Astronomical Union (IAU).

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Corona Australis

Corona Australis or Corona Austrina is a constellation in the Southern Celestial Hemisphere.

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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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International Celestial Reference System

The International Celestial Reference System (ICRS) is the current standard celestial reference system adopted by the International Astronomical Union (IAU).

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Star

A star is a luminous sphere of plasma held together by its own gravity.

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References

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

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