Pi Gruis

π Gruis, Latinised as Pi Gruis, is an optical double comprising two unrelated stars in the constellation Grus appearing close by line of sight. ^[1]

5 relations: Grus (constellation), Pi1 Gruis, Pi2 Gruis, S-type star, Semiregular variable star.

Grus (constellation)

Grus (or colloquially) is a constellation in the southern sky.

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Pi1 Gruis

π1 Gruis (Pi1 Gruis) is a semiregular variable star in the constellation Grus around 530 light-years from Earth.

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Pi2 Gruis

π2 Gruis, Latinised as Pi2 Gruis, is a binary star in the southern constellation of Grus.

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S-type star

An S-type star (or just S star) is a cool giant with approximately equal quantities of carbon and oxygen in its atmosphere.

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Semiregular variable stars are giants or supergiants of intermediate and late spectral type showing considerable periodicity in their light changes, accompanied or sometimes interrupted by various irregularities.

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Redirects here:

Pi Gruis (disambiguation), Π Gruis.

References

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

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