Marfark

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Star
Marfark (θ Cassiopeiae)
AladinLite
Observation
dates equinoxJ2000.0 , epoch : J2000.0
Constellation Cassiopeia
Right ascension 01 h 11 m 6.2 s
declination + 55 ° 08 ′ 59 ″
Apparent brightness 4.33 likes
Typing
B − V color index (0.18) 
U − B color index (0.12) 
R − I index (0.07) 
Spectral class A7 V
Astrometry
Radial velocity (2.5 ± 0.6) km / s
parallax (24.85 ± 0.29)  mas
distance (131 ± 2)  ly
(40)  pc
Proper movement 
Rec. Share: (226.24 ± 0.37)  mas / a
Dec. portion: (−19.43 ± 0.34)  mas / a
Physical Properties
Other names
and catalog entries
Bayer name θ Cassiopeiae
Flamsteed name 33 Cassiopeiae
Bonn survey BD + 54 ° 236
Bright Star Catalog HR 343 [1]
Henry Draper Catalog HD 6961 [2]
Hipparcos catalog HIP 5542 [3]
SAO catalog SAO 22070 [4]
Tycho catalog TYC 3673-1923-1 [5]
2MASS catalog 2MASS J01110616 + 5508596 [6]

Marfark (also Marfak; from Arabic المرفق, DMG al-mirfaq  'elbow') is the proper name of the star θ Cassiopeiae (Theta Cassiopeiae). Marfark has an apparent brightness of +4.33 mag and belongs to the spectral class A7V. The distance from Marfark is approximately 130 light years .

Individual evidence

  1. a b c d e f g h i tet Cas. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed September 4, 2018 .