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S Arae

S Arae (S Ara) is an A-type star in the constellation of Ara. [1]

12 relations: Apparent magnitude, Ara (constellation), Constellation, Durchmusterung, Epoch (astronomy), Hipparcos, International Celestial Reference System, RR Lyrae variable, SIMBAD, Star, Stellar classification, Variable star designation.

Apparent magnitude

The apparent magnitude (m) of a celestial object is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere.

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Ara (constellation)

Ara is a southern constellation situated between Scorpius and Triangulum Australe.

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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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Durchmusterung

In astronomy, Durchmusterung or Bonner Durchmusterung (BD), is the comprehensive astrometric star catalogue of the whole sky, compiled by the Bonn Observatory (Germany) from 1859 to 1903.

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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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Hipparcos

Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993.

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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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RR Lyrae variable

RR Lyrae variables are periodic variable stars, commonly found in globular clusters, and are used as standard candles to measure (extra)galactic distances.

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SIMBAD

SIMBAD (the Set of Identifications, Measurements, and Bibliography for Astronomical Data) is an astronomical database of objects beyond the Solar System.

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Star

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

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Stellar classification

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

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Variable star designation

Variable stars are designated using a variation on the Bayer designation format of an identifying label (as described below) combined with the Latin genitive of the name of the constellation in which the star lies.

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Redirects here:

CD -49 11833, CD −49 11833, CD-49 11833, CD−49 11833, CPD -49 10361, CPD −49 10361, CPD-49 10361, CPD−49 10361, HIP 88064, S Ara.

References

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

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