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R Cassiopeiae

R Cassiopeiae
Observationsdata
Epok: J2000.0
StjärnbildCassiopeja
Rektascension23t 58m 24,87s
Deklination+51° 23′ 19,70″[1]
Skenbar magnitud ()+4,7 (maximum), 13,5 (minimum) [2][3]
Stjärntyp
SpektraltypM6.5-9e[1]
U–B+0,08
B–V+1,83
VariabeltypMira-variabel (M)[2]
Astrometri
Radialhastighet ()21 km/s
Egenrörelse (µ)RA: 85,52±0,75 mas/år
Dek.: 17,49±0,72 mas/år
Parallax ()7,95±1,02 mas
Avstånd410  (130 pc)
Absolut magnitud ()+4,83
Detaljer
Massa15-18 M
Luminositet8330 L
Temperatur3130 K
Vinkelhastighet20 km/s
Andra beteckningar
GC 33244, IRAS 23558+5106, UBV 21530, ADS 17135 A, GCRV 14998, IRC +50484, WDS J23584+5123A, AG+51 1856, HD 224490, 2MASS J23582487+5123190, YZ 51 8551, BD+50 4202, HIC 118188, PPM 42410, LFO93 2355+51, CCDM J23584+5123A, HIP 118188, RAFGL 3188, PCC93 505, CSI+50 4202 1, HR 9066, SAO 35938, WCP90 235552.000+510637.76, DIRBE D23582487P5123190, IDS 23533+5050 A, SKY# 45221, AAVSO 2353+50[1]

R Cassiopeiae är en pulserande variabel av Mira Ceti-typ i stjärnbilden Cassiopeja.

Stjärnan varierar mellan magnitud +4,7 och 13,5 med en period av 430,46 dygn.[3] [2]

Den här artikeln är helt eller delvis baserad på material från italienskspråkiga Wikipedia, R Cassiopeiae, 14 augusti 2014.
Den här artikeln är helt eller delvis baserad på material från engelskspråkiga Wikipedia, R Cassiopeiae, 30 augusti 2014.
  1. ^ [a b c] ”Basic data: V* R Cas – Variable Star of Mira Cet type” (på engelska). Centre de Données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=R+Cassiopeiae&submit=SIMBAD+search. Läst 18 januari 2016. 
  2. ^ [a b c] ”R Cas” (på engelska). The International Variable Star Index. AAVSO – American Association of Variable Star Observers. http://www.aavso.org/vsx/index.php?view=detail.top&oid=6331. Läst 18 januari 2016. 
  3. ^ [a b] Samus N.N., Durlevich O.V., Kazarovets E V., Kireeva N.N., Pastukhova E.N., Zharova A.V. med flera. ”General Catalogue of Variable Stars, 4th Edition, Volumes I-III” (på engelska). http://www.sai.msu.su/gcvs/cgi-bin/search.cgi?search=R+Cas. Läst 18 januari 2016. 
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R Cassiopeiae
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