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Beta Lyrae variable

Index Beta Lyrae variable

Beta Lyrae variables are a class of close binary stars. [1]

81 relations: Algol variable, Alpha Octantis, Beta Lyrae, Canis Major, Capricornus, CX Canis Majoris, Delta Pictoris, DV Aquarii, Gamma Phoenicis, Hercules (constellation), HP Lyrae, List of stars in Andromeda, List of stars in Aquarius, List of stars in Aquila, List of stars in Argo Navis, List of stars in Aries, List of stars in Auriga, List of stars in Cancer, List of stars in Canis Major, List of stars in Canis Minor, List of stars in Carina, List of stars in Cassiopeia, List of stars in Centaurus, List of stars in Cepheus, List of stars in Corvus, List of stars in Crux, List of stars in Cygnus, List of stars in Delphinus, List of stars in Gemini, List of stars in Hercules, List of stars in Hydra, List of stars in Lacerta, List of stars in Libra, List of stars in Lupus, List of stars in Lynx, List of stars in Lyra, List of stars in Monoceros, List of stars in Musca, List of stars in Octans, List of stars in Ophiuchus, List of stars in Pegasus, List of stars in Phoenix, List of stars in Pictor, List of stars in Pisces, List of stars in Puppis, List of stars in Scorpius, List of stars in Sculptor, List of stars in Scutum, List of stars in Triangulum, List of stars in Ursa Minor, ..., List of stars in Vela, List of stars in Vulpecula, List of variable stars, LY Aurigae, Lyra, Mu1 Scorpii, Musca, Nu Cassiopeiae, Outline of astronomy, Pi Scorpii, Pictor, PU Puppis, Pyxis, QZ Carinae, RV Corvi, RZ Pyxidis, Serpens, Sigma Aquilae, Sigma Puppis, SV Centauri, Tau Canis Majoris, TU Muscae, Upsilon Sagittarii, UW Canis Majoris, V Puppis, W Corvi, W Crucis, W Serpentis, WR 20a, X Carinae, 31 Camelopardalis. Expand index (31 more) »

Algol variable

Algol variables or Algol-type binaries are a class of eclipsing binary stars that are related to the prototype member of this class, β Persei (Beta Persei, Algol) from an evolutionary point of view.

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Alpha Octantis

Alpha Octantis (Alpha Oct, α Octantis, α Oct) is a star in the constellation of Octans.

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Beta Lyrae

Beta Lyrae (Latinized from β Lyrae, abbreviated Beta Lyr, β Lyr), also named Sheliak, is a binary star system approximately from the Sun in the constellation of Lyra.

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Canis Major

Canis Major is a constellation in the southern celestial hemisphere.

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Capricornus

Capricornus is one of the constellations of the zodiac.

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CX Canis Majoris

CX CMa (CX Canis Majoris) is a blue variable star in the Canis Major constellation.

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Delta Pictoris

Delta Pictoris (δ Pic) is a class B3III (blue giant) star in the constellation Pictor.

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DV Aquarii

DV Aquarii is a Beta Lyrae type eclipsing binary.

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Gamma Phoenicis

Gamma Phoenicis is a star system in the constellation Phoenix, located around distant.

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Hercules (constellation)

Hercules is a constellation named after Hercules, the Roman mythological hero adapted from the Greek hero Heracles.

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HP Lyrae

HP Lyrae is a variable star in the constellation Lyra, with a visual magnitude between 10.2 and 10.8. HP Lyr was first reported to be variable in 1935 by Otto Morgenroth of the Sonneberg Observatory. The range was given as 9.5 - 10.5 and the variability type only as long-period. In 1961, it was formally designated as a β Lyr eclipsing variable with two A type supergiants in a close orbit producing smooth continuous variations with alternating minima of different depths. The period was given as 140.75 days, covering two maxima, and both a deep primary minimum and a slightly less deep secondary minimum. In 2001 a request was made for observations of HP Lyr and shortly after it was reported that HP Lyr was likely to be an RV Tauri variable rather than an eclipsing binary. This was confirmed with a more detailed study published in 2002. Some authors still maintain that the spectral type and nature of variation mean HP Lyr is more likely to be an eclipsing variable. HP Lyr varies by about 0.5 magnitude over a "halfperiod" of 69.35 days. The formal period, defined for an RV Tauri variable from deep minimum to deep minimum is 138.7 days. Its spectrum changes from A2-3 at maximum to F2 at the deepest minima. The radial velocity changes are typical for the pulsations of an RV Tauri variable, but not compatible with a binary orbit. The spectral type and colour indicated that it was likely to be the hottest known RV Tauri star. Until 1960, the period of HP Lyr was very consistent at 140.75 days. Since then it was observed to reduce to below 140 days, probably quite suddenly. A survey of historic photography including the star showed that the period changed in 1962 or 1963, taking no more than four cycles to reach a new value of 138.66 days. A study of the elemental abundances of RV Tauri stars calculated that HP Lyr had a temperature around 6,300 K and typical abundances for an RV Tauri variable. It also revealed that the abundances were altered by dust-gas separation in circumstellar material. HP Lyr has been included in a catalog of confirmed post-AGB stars, highly evolved and on its way to becoming a white dwarf.

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List of stars in Andromeda

This is the list of notable stars in the constellation Andromeda, sorted by decreasing brightness.

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List of stars in Aquarius

This is the list of notable stars in the constellation Aquarius, sorted by decreasing brightness.

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List of stars in Aquila

This is the list of 143 notable stars in the constellation Aquila, sorted by decreasing brightness.

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List of stars in Argo Navis

No description.

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List of stars in Aries

This is the list of notable stars in the constellation Aries, sorted by decreasing brightness.

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List of stars in Auriga

This is the list of notable stars in the constellation Auriga, sorted by decreasing brightness.

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List of stars in Cancer

This is the list of notable stars in the constellation Cancer.

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List of stars in Canis Major

This is the list of notable stars in the constellation Canis Major, sorted by decreasing brightness.

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List of stars in Canis Minor

This is the list of notable stars in the constellation Canis Minor, sorted by decreasing brightness.

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List of stars in Carina

This is the list of notable stars in the constellation Carina, sorted by decreasing brightness.

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List of stars in Cassiopeia

This is the list of notable stars in the constellation Cassiopeia, sorted by decreasing brightness.

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List of stars in Centaurus

This is the list of notable stars in the constellation Centaurus, sorted by decreasing brightness.

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List of stars in Cepheus

This is the list of notable stars in the constellation Cepheus, sorted by decreasing brightness.

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List of stars in Corvus

This is the list of notable stars in the constellation Corvus, sorted by decreasing brightness.

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List of stars in Crux

This is the list of notable stars in the constellation Crux, sorted by decreasing brightness.

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List of stars in Cygnus

This is the list of notable stars in the constellation of Cygnus, sorted by decreasing apparent magnitude.

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List of stars in Delphinus

This is the list of notable stars in the constellation Delphinus, sorted by decreasing brightness.

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List of stars in Gemini

This is the list of notable stars in the constellation Gemini, sorted by decreasing brightness.

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List of stars in Hercules

This is the list of notable stars in the constellation Hercules, sorted by decreasing brightness.

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List of stars in Hydra

This is the list of notable stars in the constellation Hydra, sorted by decreasing brightness.

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List of stars in Lacerta

This is the list of notable stars in the constellation Lacerta, sorted by decreasing brightness.

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List of stars in Libra

This is the list of notable stars in the constellation Libra, sorted by decreasing brightness.

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List of stars in Lupus

This is the list of notable stars in the constellation Lupus, sorted by decreasing brightness.

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List of stars in Lynx

This is the list of notable stars in the constellation Lynx, sorted by decreasing brightness.

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List of stars in Lyra

This is the list of notable stars in the constellation Lyra, sorted by decreasing brightness.

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List of stars in Monoceros

This is the list of notable stars in the constellation Monoceros, sorted by decreasing brightness.

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List of stars in Musca

This is the list of notable stars in the constellation Musca, sorted by decreasing brightness.

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List of stars in Octans

This is the list of notable stars in the constellation Octans, sorted by decreasing brightness.

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List of stars in Ophiuchus

This is the list of notable stars in the constellation Ophiuchus, sorted by decreasing brightness.

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List of stars in Pegasus

This is the list of notable stars in the constellation Pegasus, sorted by decreasing brightness.

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List of stars in Phoenix

This is the list of notable stars in the constellation Phoenix, sorted by decreasing brightness.

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List of stars in Pictor

This is the list of notable stars in the constellation Pictor, sorted by decreasing brightness.

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List of stars in Pisces

This is the list of notable stars in the constellation Pisces, sorted by decreasing brightness.

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List of stars in Puppis

This is the list of notable stars in the constellation Puppis, sorted by decreasing brightness.

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List of stars in Scorpius

This is the list of notable stars in the constellation Scorpius, sorted by decreasing brightness.

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List of stars in Sculptor

This is the list of notable stars in the constellation Sculptor, sorted by decreasing brightness.

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List of stars in Scutum

This is the list of notable stars in the constellation Scutum, sorted by decreasing brightness.

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List of stars in Triangulum

This is the list of notable stars in the constellation Triangulum, sorted by decreasing brightness.

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List of stars in Ursa Minor

This is the list of notable stars in the constellation Ursa Minor, sorted by decreasing brightness.

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List of stars in Vela

This is the list of notable stars in the constellation Vela, sorted by decreasing brightness.

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List of stars in Vulpecula

This is the list of notable stars in the constellation Vulpecula, sorted by decreasing brightness.

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List of variable stars

There are over 41,638 known variable stars (2008), with more being discovered regularly, so a complete list of every single variable is impossible at this place (cf. GCVS).

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LY Aurigae

LY Aurigae is a multiple star system in the constellation Auriga.

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Lyra

Lyra (Latin for lyre, from Greek λύρα) is a small constellation.

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Mu1 Scorpii

Mu¹ Scorpii (μ¹ Scorpii, abbreviated Mu¹ Sco, μ¹ Sco) is a binary star system in the southern zodiac constellation of Scorpius.

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Musca

Musca is a small constellation in the deep southern sky.

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Nu Cassiopeiae

Nu Cassiopeiae, Latinized from ν Cassiopeiae, is a solitary star in the northern constellation of Cassiopeia.

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Outline of astronomy

The following outline is provided as an overview of and topical guide to astronomy: Astronomy – studies the universe beyond Earth, including its formation and development, and the evolution, physics, chemistry, meteorology, and motion of celestial objects (such as galaxies, planets, etc.) and phenomena that originate outside the atmosphere of Earth (such as the cosmic background radiation).

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Pi Scorpii

Pi Scorpii (π Scorpii, abbreviated Pi Sco, π Sco) is a triple star system in the southern constellation of Scorpius.

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Pictor

Pictor is a constellation in the Southern Celestial Hemisphere, located between the star Canopus and the Large Magellanic Cloud.

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PU Puppis

PU Puppis (PU Pup) is a class B8III (blue giant) star in the constellation Puppis.

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Pyxis

Pyxis is a small and faint constellation in the southern sky.

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QZ Carinae

QZ Carinae (HD 93206) is a multiple star system in the constellation Carina.

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RV Corvi

RV Corvi is an eclipsing binary star system in the constellation Corvus, ranging from apparent magnitude 8.6 to 9.16 over 18 hours.

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RZ Pyxidis

RZ Pyxidis is eclipsing binary system in the constellation Pyxis, made up of two young stars less than 200,000 years old.

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Serpens

Serpens ("the Serpent", Greek Ὄφις) is a constellation of the northern hemisphere.

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Sigma Aquilae

Sigma Aquilae, Latinized from σ Aquilae, is the Bayer designation for a binary star system in the equatorial constellation of Aquila.

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Sigma Puppis

Sigma Puppis (Sigma Pup, σ Puppis, σ Pup) is a binary star system in the southern constellation of Puppis.

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SV Centauri

SV Centauri is a variable star in the constellation Centaurus.

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Tau Canis Majoris

Tau Canis Majoris (τ CMa, τ Canis Majoris, 30 CMa) is a multiple star system in the constellation Canis Major.

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TU Muscae

TU Muscae, also known as HD100213, is an eclipsing binary star in the constellation Musca.

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Upsilon Sagittarii

Upsilon Sagittarii (Upsilon Sgr, υ Sagittarii, υ Sgr) is a spectroscopic binary star system in the constellation Sagittarius.

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UW Canis Majoris

UW Canis Majoris is a star in the constellation Canis Major.

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V Puppis

V Puppis (V Pup) is a star system in the constellation Puppis.

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W Corvi

W Corvi is an eclipsing binary star system in the constellation Corvus, ranging from apparent magnitude 11.16 to 12.5 over 9 hours.

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W Crucis

W Crucis is a star system in the constellation Crux.

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W Serpentis

W Serpentis is a multiple star in the constellation Serpens.

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WR 20a

WR20a is a binary star associated with the young, massive cluster Westerlund 2.

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X Carinae

X Carinae is a Beta Lyrae variable in the constellation Carina.

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31 Camelopardalis

31 Camelopardalis is an eclipsing spectroscopic binary in the constellation Camelopardalis.

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Redirects here:

Beta Lyrae Star, Beta Lyrae star, Beta Lyrae variables, Beta lyrae variable, W Serpentis star, Β Lyrae variable.

References

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

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