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9 Aquarii

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9 Aquarii (abbreviated 9 Aqr) is a yellow giant with a spectral type of G8III and an apparent magnitude of 6.55 in the constellation Aquarius. [1]

5 relations: Apparent magnitude, Aquarius (constellation), Flamsteed designation, Giant star, Stellar classification.

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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Aquarius (constellation)

Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces.

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Flamsteed designation

A Flamsteed designation is a combination of a number and constellation name that uniquely identifies most naked eye stars in the modern constellations visible from southern England.

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Giant star

A giant star is a star with substantially larger radius and luminosity than a main-sequence (or dwarf) star of the same surface temperature.

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Stellar classification

In astronomy, stellar classification is the classification of stars based on their spectral characteristics.

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References

[1] https://en.wikipedia.org/wiki/9_Aquarii

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