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38 relations: Absolute magnitude, Altair, Balmer series, Beta Pictoris, Debris disk, Delta Leonis, Doppler spectroscopy, Effective temperature, Electromagnetic spectrum, Exoplanet, Fomalhaut, Gamma Cephei, Gamma Ursae Majoris, HD 15082, HD 88955, HD 95086 b, Hydrogen, Infrared, Iota Draconis, Kelvin, Main sequence, Mass, Pollux (star), Radiation zone, Red giant, SIMBAD, Sirius, Sky & Telescope, Solar mass, Star, Star count, Stellar classification, Stellar magnetic field, Stellar wind, Sun, Vega, X-ray astronomy, 21 Leonis Minoris.
Absolute magnitude
Absolute magnitude is a measure of the luminosity of a celestial object, on a logarithmic astronomical magnitude scale.
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Altair
Altair, also designated Alpha Aquilae (α Aquilae, abbreviated Alpha Aql, α Aql), is the brightest star in the constellation of Aquila and the twelfth brightest star in the night sky.
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Balmer series
The Balmer series or Balmer lines in atomic physics, is the designation of one of a set of six named series describing the spectral line emissions of the hydrogen atom.
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Beta Pictoris
Beta Pictoris (β Pic, β Pictoris) is the second brightest star in the constellation Pictor.
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Debris disk
A debris disk is a circumstellar disk of dust and debris in orbit around a star.
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Delta Leonis
Delta Leonis (δ Leonis, abbreviated Delta Leo, δ Leo), also named Zosma, is a star in the zodiac constellation of Leo.
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Doppler spectroscopy
Doppler spectroscopy (also known as the radial-velocity method, or colloquially, the wobble method) is an indirect method for finding extrasolar planets and brown dwarfs from radial-velocity measurements via observation of Doppler shifts in the spectrum of the planet's parent star.
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Effective temperature
The effective temperature of a body such as a star or planet is the temperature of a black body that would emit the same total amount of electromagnetic radiation.
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Electromagnetic spectrum
The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies.
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Exoplanet
An exoplanet or extrasolar planet is a planet outside our solar system.
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Fomalhaut
Fomalhaut, also designated Alpha Piscis Austrini (α Piscis Austrini, abbreviated Alpha PsA, α PsA) is the brightest star in the constellation of Piscis Austrinus and one of the brightest stars in the sky.
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Gamma Cephei
Gamma Cephei (γ Cephei, abbreviated Gamma Cep, γ Cep) is a binary star system approximately 45 light-years away in the constellation of Cepheus.
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Gamma Ursae Majoris
Gamma Ursae Majoris (γ Ursae Majoris, abbreviated Gamma UMa, γ UMa), also named Phecda, is a star in the constellation of Ursa Major.
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HD 15082
HD 15082 (also known as WASP-33) is a star located roughly 380 light years away in the northern constellation of Andromeda.
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HD 88955
HD 88955 is a star in the constellation Vela.
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HD 95086 b
HD 95086 b is a confirmed, directly imaged exoplanet orbiting the young, 17 Myr A-class pre-main-sequence star HD 95086.
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Hydrogen
Hydrogen is a chemical element with symbol H and atomic number 1.
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Infrared
Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions). It is sometimes called infrared light.
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Iota Draconis
Iota Draconis (ι Draconis, abbreviated Iota Dra, ι Dra), also named Edasich, is a star in the northern circumpolar constellation of Draco.
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Kelvin
The Kelvin scale is an absolute thermodynamic temperature scale using as its null point absolute zero, the temperature at which all thermal motion ceases in the classical description of thermodynamics.
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Main sequence
In astronomy, the main sequence is a continuous and distinctive band of stars that appear on plots of stellar color versus brightness.
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Mass
Mass is both a property of a physical body and a measure of its resistance to acceleration (a change in its state of motion) when a net force is applied.
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Pollux (star)
Pollux, also designated Beta Geminorum (β Geminorum, abbreviated Beta Gem, β Gem), is an orange-hued evolved giant star approximately 34 light-years from the Sun in the northern constellation of Gemini.
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Radiation zone
A radiation zone, radiative zone or radiative region is a layer of a star's interior where energy is primarily transported toward the exterior by means of radiative diffusion and thermal conduction, rather than by convection.
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Red giant
A red giant is a luminous giant star of low or intermediate mass (roughly 0.3–8 solar masses) in a late phase of stellar evolution.
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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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Sirius
Sirius (a romanization of Greek Σείριος, Seirios,."glowing" or "scorching") is a star system and the brightest star in the Earth's night sky.
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Sky & Telescope
Sky & Telescope (S&T) is a monthly American magazine covering all aspects of amateur astronomy, including the following.
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Solar mass
The solar mass is a standard unit of mass in astronomy, equal to approximately.
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Star
A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
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Star count
Star counts are bookkeeping surveys of stars and the statistical and geometrical methods used to correct the survey data for bias.
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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 magnetic field
A stellar magnetic field is a magnetic field generated by the motion of conductive plasma inside a star.
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Stellar wind
A stellar wind is a flow of gas ejected from the upper atmosphere of a star.
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Sun
The Sun is the star at the center of the Solar System.
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Vega
Vega, also designated Alpha Lyrae (α Lyrae, abbreviated Alpha Lyr or α Lyr), is the brightest star in the constellation of Lyra, the fifth-brightest star in the night sky, and the second-brightest star in the northern celestial hemisphere, after Arcturus.
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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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21 Leonis Minoris
21 Leonis Minoris is a star in the constellation of Leo Minor.
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Redirects here:
A V star, A type main-sequence star, A-type main sequence, A-type main sequence star, Class A star, White main sequence star, White main sequence stars.
References
[1] https://en.wikipedia.org/wiki/A-type_main-sequence_star
