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Alpha Octantis

Alpha Octantis is a binary star system in the constellation of Octans. ^[1]

24 relations: Apparent magnitude, Beta Lyrae variable, Binary star, Centre de données astronomiques de Strasbourg, Constellation, Debris disk, Epoch (astronomy), Giant star, Infrared excess, International Celestial Reference System and its realizations, Light curve, Light-year, Monthly Notices of the Royal Astronomical Society, Nicolas-Louis de Lacaille, Nu Octantis, Octans, Orbital eccentricity, Orbital period, Romanization of Greek, Stellar classification, Stellar parallax, Sun, Transiting Exoplanet Survey Satellite, X-ray astronomy.
Beta Lyrae variables

Apparent magnitude

Apparent magnitude is a measure of the brightness of a star or other astronomical object.

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Beta Lyrae variable

Beta Lyrae variables are a class of close binary stars. Alpha Octantis and Beta Lyrae variable are Beta Lyrae variables.

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Binary star

A binary star or binary star system is a system of two stars that are gravitationally bound to and in orbit around each other.

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Centre de données astronomiques de Strasbourg

The Centre de Données astronomiques de Strasbourg (CDS; English translation: Strasbourg Astronomical Data Centre) is a data centre which collects and distributes astronomical information.

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Constellation

A constellation is an area on the celestial sphere in which a group of visible stars forms a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object.

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Debris disk

A debris disk (American English), or debris disc (Commonwealth English), is a circumstellar disk of dust and debris in orbit around a star. Alpha Octantis and debris disk are circumstellar disks.

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Epoch (astronomy)

In astronomy, an epoch or reference epoch is a moment in time used as a reference point for some time-varying astronomical quantity.

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Giant star

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

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An infrared excess is a measurement of an astronomical source, typically a star, that in their spectral energy distribution has a greater measured infrared flux than expected by assuming the star is a blackbody radiator.

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International Celestial Reference System and its realizations

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

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Light curve

In astronomy, a light curve is a graph of the light intensity of a celestial object or region as a function of time, typically with the magnitude of light received on the y-axis and with time on the x-axis.

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Light-year

A light-year, alternatively spelled light year (ly or lyr), is a unit of length used to express astronomical distances and is equal to exactly 9,460,730,472,580.8 km (Scientific notation: 9.4607304725808 × 1012 km), which is approximately 5.88 trillion mi.

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Monthly Notices of the Royal Astronomical Society

Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal in astronomy, astrophysics and related fields.

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Nicolas-Louis de Lacaille

Abbé Nicolas-Louis de Lacaille (15 March 171321 March 1762), formerly sometimes spelled de la Caille, was a French astronomer and geodesist who named 14 out of the 88 constellations.

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Nu Octantis

ν Octantis, Latinised as Nu Octantis, is a star in the constellation of Octans. Alpha Octantis and Nu Octantis are bright Star Catalogue objects, Henry Draper Catalogue objects, Hipparcos objects, Octans and Spectroscopic binaries.

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Octans

Octans is a faint constellation located in the deep Southern Sky.

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Orbital eccentricity

In astrodynamics, the orbital eccentricity of an astronomical object is a dimensionless parameter that determines the amount by which its orbit around another body deviates from a perfect circle.

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Orbital period

The orbital period (also revolution period) is the amount of time a given astronomical object takes to complete one orbit around another object.

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Romanization of Greek

Romanization of Greek is the transliteration (letter-mapping) or transcription (sound-mapping) of text from the Greek alphabet into the Latin alphabet.

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Stellar classification

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

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Stellar parallax

Stellar parallax is the apparent shift of position (parallax) of any nearby star (or other object) against the background of distant stars.

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Sun

The Sun is the star at the center of the Solar System.

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Transiting Exoplanet Survey Satellite

Transiting Exoplanet Survey Satellite (TESS) is a space telescope for NASA's Explorer program, designed to search for exoplanets using the transit method in an area 400 times larger than that covered by the Kepler mission.

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X-ray astronomy

X-ray astronomy is an observational branch of astronomy which deals with the study of X-ray observation and detection from astronomical objects.

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References

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

Also known as Alpha Oct, CD -77 1053, CD-77 1053, CPD -77 1474, CPD-77 1474, FK5 787, GC 29343, HD 199532, HIP 104043, HR 8021, LTT 8327, NLTT 50332, PPM 374864, SAO 257879, Α Oct, Α Octantis.

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