RR Lyrae
RR Lyrae is a variable star in the Lyra constellation, figuring in its west near to Cygnus. As the brightest star in its class, it became the eponym for the RR Lyrae variable class of stars and it has been extensively studied by astronomers. RR Lyrae variables serve as important standard candles that are used to measure astronomical distances. The period of pulsation of an RR Lyrae variable depends on its mass, luminosity and temperature, while the difference between the measured luminosity and the actual luminosity allows its distance to be determined via the inverse-square law. Hence, understanding the period-luminosity relation for a local set of such stars allows the distance of more distant stars of this type to be determined.
Adriaan WesselinkAndromeda IAquarius DwarfAstronomical naming conventionsBoötesCanes Venatici I (dwarf galaxy)Expansion of the universeGlobular clusterHD 182989HIC 95497Harlow ShapleyList of astronomy acronymsList of stars in LyraList of variable starsLyraNGC 6544PPM 58291Palomar Transient FactoryPisces I (dwarf galaxy)Priscilla Fairfield BokRR LyrRR Lyrae variableRr LyraeStellar designations and namesStellar pulsationTimeline of the early universeUSNO 886Variable starVirgo Stellar Stream
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RR Lyrae
RR Lyrae is a variable star in the Lyra constellation, figuring in its west near to Cygnus. As the brightest star in its class, it became the eponym for the RR Lyrae variable class of stars and it has been extensively studied by astronomers. RR Lyrae variables serve as important standard candles that are used to measure astronomical distances. The period of pulsation of an RR Lyrae variable depends on its mass, luminosity and temperature, while the difference between the measured luminosity and the actual luminosity allows its distance to be determined via the inverse-square law. Hence, understanding the period-luminosity relation for a local set of such stars allows the distance of more distant stars of this type to be determined.
has abstract
O RR Λύρας (RR Lyrae) είναι με ...... μένων αστέρων αυτού του τύπου.
@el
RR Lyrae es una estrella varia ...... veces la luminosidad del Sol.
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RR Lyrae est une étoile variab ...... d'autres étoiles de son type.
@fr
RR Lyrae is a variable star in ...... of this type to be determined.
@en
RR Lyrae è una stella variabil ...... magnitudini tra +7,06 e +8,12.
@it
RR Lyrae és un estel variable ...... de 258 parsecs, 842 anys llum.
@ca
RR Lyrae – gwiazda zmienna w g ...... wiazd zmiennych typu RR Lyrae.
@pl
RR Лиры — переменная звезда в ...... ветовых лет (18.4 килопарсек).
@ru
RR Ліри — змінна зоря в сузір' ...... на 59,9 тис. св.р. (18,4 кпк).
@uk
こと座RR星(ことざRRせい、RR Lyrae、略称:RR Lyr)は、こと座の方向に位置する脈動変光星。
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absmag v
appmag v
b-v
+0.181
@en
class
A7III - F8III
@en
constell
epoch
J2000
@en
gravity
luminosity
mass
metal fe
–1.16
@en
p error
parallax
prop mo dec
-1.9575e+2
prop mo ra
-1.0968e+2
radial v
radius
temperature
u-b
+0.172
@en
variable
wikiPageUsesTemplate
subject
hypernym
comment
O RR Λύρας (RR Lyrae) είναι με ...... α ένα σύνολο τοπικών μεταβλητώ
@el
RR Lyrae es una estrella varia ...... trellas variables de su clase.
@es
RR Lyrae est une étoile variab ...... d'autres étoiles de son type.
@fr
RR Lyrae is a variable star in ...... of this type to be determined.
@en
RR Lyrae è una stella variabil ...... magnitudini tra +7,06 e +8,12.
@it
RR Lyrae és un estel variable ...... d College Observatory el 1901.
@ca
RR Lyrae – gwiazda zmienna w g ...... wiazd zmiennych typu RR Lyrae.
@pl
RR Лиры — переменная звезда в ...... далённых звёзд такого же типа.
@ru
RR Ліри — змінна зоря в сузір' ...... г з Гарвардської обсерваторії.
@uk
こと座RR星(ことざRRせい、RR Lyrae、略称:RR Lyr)は、こと座の方向に位置する脈動変光星。
@ja
label
RR Lyrae
@ca
RR Lyrae
@de
RR Lyrae
@en
RR Lyrae
@es
RR Lyrae
@fr
RR Lyrae
@it
RR Lyrae
@pl
RR Lyrae
@sv
RR Λύρας
@el
RR Лиры
@ru
wasDerivedFrom
isPrimaryTopicOf
name
RR Lyrae
@en