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Hypergiant

Index Hypergiant

A hypergiant (luminosity class 0 or Ia+) is among the very rare kinds of stars that typically show tremendous luminosities and very high rates of mass loss by stellar winds. [1]

81 relations: A. David Thackeray, Absolute magnitude, Aquila (constellation), AS 314, Atom, Big Bang, BP Crucis, Carina (constellation), Carina Nebula, Cassiopeia (constellation), Convective heat transfer, Cygnus (constellation), Cygnus OB2-12, Dorado, Eddington luminosity, Eta Carinae, Galaxy, H-alpha, HD 160529, HD 168607, HD 168625, HD 179821, HD 183143, HD 268835, HD 33579, HD 37974, Helium, Hertzsprung–Russell diagram, HR 5171, Hydrogen, International Astronomical Union, IRAS 17163-3907, IRC +10420, Large Magellanic Cloud, LBV 1806-20, List of largest stars, List of most massive stars, Luminosity, Luminous blue variable, Metallicity, Michael William Feast, NML Cygni, P Cygni, Philip Childs Keenan, Photosphere, Pistol Star, Pulsar, Radiative flux, Rho Cassiopeiae, RSGC1, ..., RW Cephei, S Doradus, S Persei, Sagittarius (constellation), Solar mass, Spectral line, Star, Stellar classification, Stellar kinematics, Stellar population, Stellar wind, Stephenson 2, Sun, Supergiant star, Superluminous supernova, Supernova, The Astronomy and Astrophysics Review, The Astrophysical Journal, UY Scuti, V1429 Aquilae, V382 Carinae, V509 Cassiopeiae, VX Sagittarii, VY Canis Majoris, Westerlund 1, Westerlund 1-26, WOH G64, Wolf–Rayet star, Yellow hypergiant, Zeta1 Scorpii, 1806-20 cluster. Expand index (31 more) »

A. David Thackeray

Andrew David Thackeray (19 June 1910 – 21 February 1978), was an astronomer trained at Cambridge University.

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Absolute magnitude

Absolute magnitude is a measure of the luminosity of a celestial object, on a logarithmic astronomical magnitude scale.

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Aquila (constellation)

Aquila is a constellation on the celestial equator.

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AS 314

AS 314, also known as V452 Scuti, is a white hypergiant star and luminous blue variable candidate located in the constellation of Scutum.

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Atom

An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element.

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Big Bang

The Big Bang theory is the prevailing cosmological model for the universe from the earliest known periods through its subsequent large-scale evolution.

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BP Crucis

BP Crucis (x-ray source GX 301-2) is an X-ray binary system containing a blue hypergiant and a pulsar.

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Carina (constellation)

Carina is a constellation in the southern sky.

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Carina Nebula

The Carina Nebula (catalogued as NGC 3372; also known as the Grand Nebula, Great Nebula in Carina, or Eta Carinae Nebula) is a large, complex area of bright and dark nebulosity in the constellation Carina, and is located in the Carina–Sagittarius Arm.

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Cassiopeia (constellation)

Cassiopeia is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivalled beauty.

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Convective heat transfer

Convective heat transfer, often referred to simply as convection, is the transfer of heat from one place to another by the movement of fluids.

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Cygnus (constellation)

Cygnus is a northern constellation lying on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan.

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Cygnus OB2-12

Cygnus OB2 #12 is an extremely bright blue hypergiant with an absolute bolometric magnitude (all electromagnetic radiation) of −10.9, among the most luminous stars known in the galaxy.

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Dorado

Dorado (English pronunciation) is a constellation in the southern sky.

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Eddington luminosity

The Eddington luminosity, also referred to as the Eddington limit, is the maximum luminosity a body (such as a star) can achieve when there is balance between the force of radiation acting outward and the gravitational force acting inward.

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Eta Carinae

Eta Carinae (η Carinae, abbreviated to η Car), formerly known as Eta Argus, is a stellar system containing at least two stars with a combined luminosity greater than five million times that of the Sun, located around 7,500 light-years (2,300 parsecs) distant in the constellation Carina.

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Galaxy

A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter.

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H-alpha

H-alpha (Hα) is a specific deep-red visible spectral line in the Balmer series with a wavelength of 656.28 nm in air; it occurs when a hydrogen electron falls from its third to second lowest energy level.

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HD 160529

HD 160529 (V905 Sco) is a Luminous Blue Variable (LBV) star located in the constellation of Scorpius.

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HD 168607

HD 168607 (V4029 Sgr) is a blue hypergiant and luminous blue variable (LBV) star located in the constellation of Sagittarius, easy to see with amateur telescopes.

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HD 168625

HD 168625 (V4030 Sgr) is a blue hypergiant and candidate luminous blue variable located in the constellation of Sagittarius easy to see with amateur telescopes.

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HD 179821

HD 179821 is a yellow supergiant star in the constellation of Aquila, surrounded by a detached dust shell.

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HD 183143

HD 183143 (HT Sagittae) is a blue hypergiant star located in the constellation of Sagitta.

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HD 268835

HD 268835 (or R66) (30 SM) is one of two stars that were identified by NASA's Spitzer space telescope in the Milky Way's nearest neighbor galaxy, the Large Magellanic Cloud (the other being R 126 or HD 37974), as being circled by monstrous dust disks that are theorised to be the origin of planets.

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HD 33579

HD 33579 is a white/yellow hypergiant and one of the brightest stars in the Large Magellanic Cloud (LMC).

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HD 37974

HD 37974 (or R 126) a variable Be hypergiant in the Large Magellanic Cloud.

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Helium

Helium (from lit) is a chemical element with symbol He and atomic number 2.

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Hertzsprung–Russell diagram

The Hertzsprung–Russell diagram, abbreviated H–R diagram, HR diagram or HRD, is a scatter plot of stars showing the relationship between the stars' absolute magnitudes or luminosities versus their stellar classifications or effective temperatures.

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HR 5171

HR 5171, also known as V766 Centauri, is a triple star system in the constellation Centaurus, around 12,000 light years from Earth.

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Hydrogen

Hydrogen is a chemical element with symbol H and atomic number 1.

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International Astronomical Union

The International Astronomical Union (IAU; Union astronomique internationale, UAI) is an international association of professional astronomers, at the PhD level and beyond, active in professional research and education in astronomy.

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IRAS 17163-3907

IRAS 17163-3907, also known as Hen 3-1379, is a possible yellow hypergiant star located 13,000 light years from Earth in the constellation of Scorpius.

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IRC +10420

IRC+10420, also known as V1302 Aql, is a yellow hypergiant star located in the constellation of Aquila at a distance of 4-6 kiloparsecs of the Sun.

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Large Magellanic Cloud

The Large Magellanic Cloud (LMC) is a satellite galaxy of the Milky Way.

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LBV 1806-20

LBV 1806-20 is a candidate luminous blue variable (LBV) and likely binary star located nearly 40,000 light-years from the Sun, towards the center of the Milky Way.

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List of largest stars

Below is an ordered list of the largest stars currently known by radius.

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List of most massive stars

This is a list of the most massive stars so far discovered, in solar masses.

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Luminosity

In astronomy, luminosity is the total amount of energy emitted per unit of time by a star, galaxy, or other astronomical object.

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Luminous blue variable

Luminous blue variables (LBVs) are massive evolved stars that show unpredictable and sometimes dramatic variations in both their spectra and brightness.

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Metallicity

In astronomy, metallicity is used to describe the abundance of elements present in an object that are heavier than hydrogen or helium.

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Michael William Feast

Michael William Feast (born 29 December 1926 in Deal, England) is an honorary professor of astronomy at the University of Cape Town, noted particularly for his work on the cosmic distance scale using variable stars.

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NML Cygni

NML Cygni or V1489 Cygni is a red hypergiant and one of the largest stars currently known with a radius of or between.

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P Cygni

P Cygni (34 Cyg) is a variable star in the constellation Cygnus.

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Philip Childs Keenan

Philip Childs Keenan (March 31, 1908 – April 20, 2000) was an American astronomer.

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Photosphere

The photosphere is a star's outer shell from which light is radiated.

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Pistol Star

The Pistol Star is a blue hypergiant star, one of the most luminous known in the Milky Way.

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Pulsar

A pulsar (from pulse and -ar as in quasar) is a highly magnetized rotating neutron star or white dwarf that emits a beam of electromagnetic radiation.

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Radiative flux

Radiative flux, also known as radiative flux density or radiation flux, is the amount of power radiated through a given area, in the form of photons or other elementary particles, typically measured in W/m2.

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Rho Cassiopeiae

Rho Cassiopeiae (ρ Cas, ρ Cassiopeiae) is a yellow hypergiant star in the constellation Cassiopeia.

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RSGC1

RSGC1 (Red Supergiant Cluster 1) is a young massive open cluster belonging to the Milky Way galaxy.

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RW Cephei

RW Cephei is an orange hypergiant star in the constellation Cepheus, at the edge of the Sharpless 132 HII region and close to the small open cluster Berkeley 94.

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S Doradus

S Doradus (also known as S Dor) is located 160,000 light years away, and is one of the brightest stars in the Large Magellanic Cloud (LMC), a satellite of the Milky Way.

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S Persei

S Persei is a red supergiant located near the Double Cluster in Perseus, north of the cluster NGC 869.

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Sagittarius (constellation)

Sagittarius is one of the constellations of the zodiac.

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Solar mass

The solar mass is a standard unit of mass in astronomy, equal to approximately.

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Spectral line

A spectral line is a dark or bright line in an otherwise uniform and continuous spectrum, resulting from emission or absorption of light in a narrow frequency range, compared with the nearby frequencies.

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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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Stellar classification

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

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Stellar kinematics

In astronomy, stellar kinematics is the observational study or measurement of the kinematics or motions of stars through space.

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Stellar population

During 1944, Walter Baade categorized groups of stars within the Milky Way into bluer stars associated with the spiral arms and the general position of yellow stars near the central galactic bulge or within globular star clusters.

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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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Stephenson 2

Stephenson 2 also known as RSGC2 is a young massive open cluster belonging to the Milky Way galaxy.

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Sun

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

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Supergiant star

Supergiants are among the most massive and most luminous stars.

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Superluminous supernova

A superluminous supernova (SLSN, plural superluminous supernovae or SLSNe; also known as hypernova) is a type of stellar explosion with a luminosity 10 or more times higher than that of standard supernovae.

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Supernova

A supernova (plural: supernovae or supernovas, abbreviations: SN and SNe) is a transient astronomical event that occurs during the last stellar evolutionary stages of a star's life, either a massive star or a white dwarf, whose destruction is marked by one final, titanic explosion.

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The Astronomy and Astrophysics Review

The Astronomy and Astrophysics Review is a peer-reviewed scientific journal that is published quarterly by Springer Science+Business Media.

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The Astrophysical Journal

The Astrophysical Journal, often abbreviated ApJ (pronounced "ap jay") in references and speech, is a peer-reviewed scientific journal of astrophysics and astronomy, established in 1895 by American astronomers George Ellery Hale and James Edward Keeler.

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UY Scuti

UY Scuti is a red supergiant and pulsating variable star in the constellation Scutum.

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V1429 Aquilae

V1429 Aquilae is a candidate luminous blue variable multiple star system located in the constellation of Aquila.

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V382 Carinae

V382 Carinae, also known as x Carinae (x Car), is a yellow hypergiant in the constellation Carina.

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V509 Cassiopeiae

V509 Cassiopeiae (V509 Cas or HR 8752) is one of two yellow hypergiant stars found in the constellation Cassiopeia, which also contains Rho Cassiopeiae.

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VX Sagittarii

VX Sagittarii is a red supergiant or red hypergiant located more than 1.5 kiloparsec away from the Sun in the constellation of Sagittarius.

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VY Canis Majoris

VY Canis Majoris (VY CMa) is an extreme pulsating red hypergiant (or supergiant) star located in the constellation Canis Major.

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Westerlund 1

Westerlund 1 (abbreviated Wd1, sometimes called Ara Cluster) is a compact young super star cluster in the Milky Way galaxy, about 3.5–5 kpc away from Earth.

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Westerlund 1-26

Westerlund 1-26 or Wd 1-26 is a red supergiant or hypergiant within the outskirts of the Westerlund 1 super star cluster.

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WOH G64

WOH G64 is a red hypergiant star in the Large Magellanic Cloud satellite galaxy in the southern constellation of Dorado.

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Wolf–Rayet star

Wolf–Rayet stars, often abbreviated as WR stars, are a rare heterogeneous set of stars with unusual spectra showing prominent broad emission lines of highly ionised helium and nitrogen or carbon.

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Yellow hypergiant

A yellow hypergiant is a massive star with an extended atmosphere, a spectral class from A to K, and an initial mass of about 20–60 solar masses but having lost as much as half that mass.

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Zeta1 Scorpii

Zeta1 Scorpii (Zeta1 Sco, ζ1 Scorpii, ζ1 Sco) is a B-type hypergiant star in the constellation of Scorpius.

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1806-20 cluster

1806-20 (originally named the SGR 1806-20 cluster) is a heavily obscured star cluster on the far side of the Milky Way, approximately 50,000 light years distant.

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Redirects here:

Blue hypergiant, Hyper giant, Hyper giants, Hypergiant star, Hypergiants, Red Hypergiant, Red hypergiant, White hypergiant.

References

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

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