Variable star
A variable star is a star whose brightness as seen from Earth (its apparent magnitude) fluctuates. This variation may be caused by a change in emitted light or by something partly blocking the light, so variable stars are classified as either:
* Intrinsic variables, whose luminosity actually changes; for example, because the star periodically swells and shrinks.
* Extrinsic variables, whose apparent changes in brightness are due to changes in the amount of their light that can reach Earth; for example, because the star has an orbiting companion that sometimes eclipses it.
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101 Piscium101 Virginis104 Aquarii104 Herculis106 Herculis10 Canis Majoris10 Leonis Minoris119 Tauri11 Canis Minoris12 Canis Majoris12 Comae Berenices12 Lacertae12 Ophiuchi13 Andromedae13 Boötis14 Lacertae14 Sagittarii1596 in science15 Andromedae15 Arietis15 Cancri15 Canis Majoris15 Vulpeculae1669 in science16 Lyncis16 Persei1704_Wachmann1726_Hoffmeister174 (number)1781_Van_Biesbroeck1783_Albitskij1783 in Great Britain1783 in science1784 in science17 Camelopardalis17 Persei18 Ursae Majoris1920 in South Africa1985_Hopmann19 Aurigae
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2MASS J11263991−500355031 Comae BerenicesAM HerculisAN Ursae MajorisAO CassiopeiaeCoRoT-1Cygnus X-1FK Comae BerenicesGSC 02652-01324GSC 03549-02811Gliese 1214HAT-P-13HAT-P-23HD 147506HD 179070HD 90089HD 97658K2-19K2-24K2-28K2-32Kepler-25NO ApodisOGLE-TR-10OGLE-TR-111OGLE-TR-113OU AndromedaePleione (star)Theta ApodisV1794 CygniWASP-19WASP-4WR 124XO-1
variable
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Variable star
A variable star is a star whose brightness as seen from Earth (its apparent magnitude) fluctuates. This variation may be caused by a change in emitted light or by something partly blocking the light, so variable stars are classified as either:
* Intrinsic variables, whose luminosity actually changes; for example, because the star periodically swells and shrinks.
* Extrinsic variables, whose apparent changes in brightness are due to changes in the amount of their light that can reach Earth; for example, because the star has an orbiting companion that sometimes eclipses it.
has abstract
A variable star is a star whos ...... % over an 11-year solar cycle.
@en
Aon réalta nach mbíonn a lonra ...... aithigh fhadtréimhseacha Mira.
@ga
Bintang variabel adalah bintan ...... ri ini adalah .
* l
* b
* s
@in
En astronomie, une étoile vari ...... e temps beaucoup plus courtes.
@fr
Gwiazda zmienna – gwiazda, któ ...... o ok. 0,1% w 11-letnim cyklu.
@pl
Las estrellas variables son es ...... nte un ciclo solar de 11 años.
@es
Por definição, uma estrela var ...... os de tempo muito mais curtos.
@pt
Proměnná hvězda je hvězda, jej ...... lí na jednotlivé třídy a typy.
@cs
Una estrella variable és una e ...... stren cap mena de regularitat.
@ca
Una stella variabile è una ste ...... ante il suo undecennale ciclo.
@it
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comment
A variable star is a star whos ...... on that sometimes eclipses it.
@en
Aon réalta nach mbíonn a lonra ...... aithigh fhadtréimhseacha Mira.
@ga
Bintang variabel adalah bintan ...... ri ini adalah .
* l
* b
* s
@in
En astronomie, une étoile vari ...... e temps beaucoup plus courtes.
@fr
Gwiazda zmienna – gwiazda, któ ...... o ok. 0,1% w 11-letnim cyklu.
@pl
Las estrellas variables son es ...... nte un ciclo solar de 11 años.
@es
Por definição, uma estrela var ...... os de tempo muito mais curtos.
@pt
Proměnná hvězda je hvězda, jej ...... lí na jednotlivé třídy a typy.
@cs
Una estrella variable és una e ...... us determinat de variabilitat.
@ca
Una stella variabile è una ste ...... elle variabili si dividono in:
@it
label
Bintang variabel
@in
Estrela variável
@pt
Estrella variable
@ca
Estrella variable
@es
Gwiazda zmienna
@pl
Proměnná hvězda
@cs
Réalta athraitheach
@ga
Stella variabile
@it
Variabel stjärna
@sv
Variable star
@en