Epsilon Carinae

from Wikipedia, the free encyclopedia
Double star
ε Carinae
The position of ε Carinae (Avior) in the constellation Schiffskiel
Observation
dates equinoxJ2000.0 , epoch : J2000.0
AladinLite
Constellation Keel of the ship
Right ascension 08 h 22 m 31 s
declination -59 ° 30 ′ 34 ″
Apparent brightness  1.95 likes
Astrometry
Radial velocity (11.6 ± 0.5) km / s
parallax (5.39 ± 0.42) mas
distance  (600) ly
((190) pc )
Absolute visual brightness M vis approx. −4.5 mag
Absolute bolometric magnitude M bol approx. −5.6 mag
Proper movement :
Rec. Share: (−25.5 ± 0.5) mas / a
Dec. portion: (22.1 ± 0.5) mas / a
orbit 
period 2.2  a
Individual data
Names A ; B.
Observation data:
Apparent brightness A. 2.01 mag
B. 3.85 likes
Typing:
Spectral class A. K3 III
B. B2 Vp
B − V color index A. (1.85)
B. (0.08)
Physical Properties:
Absolute vis.
Brightness
M vis
A. −4.0 mag
B. −3.3 mag
Absolute bol.
Brightness
M bol
A. −4.5 mag
B. −5.1 mag
Dimensions A. 4.6 M
B. 13.7 M
radius A. 150 R
B. 8.2 R
Luminosity A. 5,450 L
B. 9,710 L
Effective temperature A. 4,400 K
B. 22,000 K
Rotation time A. 53 d
B. 1.6 d
Other names
and catalog entries
Bayer name ε Carinae
Bright Star Catalog HR 3307 [1]
SAO catalog SAO 235932 [2]
Tycho catalog TYC 8579-2692-1 [3]
Hipparcos catalog HIP 41037 [4]
Henry Draper Catalog HD 71129 HD 71130
Further designations: Avior • CPD −59 ° 1032 • FK5  315

ε Carinae (Epsilon Carinae ), also known under the proper name Avior , is a spectroscopic binary star with an apparent magnitude of 1.9  mag . This makes the system one of the 50 brightest stars in the night sky. From Earth, ε Carinae is about 630 light years away and a direct neighbor of Turais (ι Carinae).

See also

Web links

Individual evidence

  1. a b c d eps Car. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed on September 21, 2018 .