Miaplacidus

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Star
β Carinae
AladinLite
Observation
dates equinoxJ2000.0 , epoch : J2000.0
Constellation Keel of the ship
Right ascension 09 h 13 m 11.98 s
declination -69 ° 43 ′ 2 ″
Apparent brightness 1.67 mag
Typing
B − V color index +0.00 
U − B color index +0.03 
R − I index +0.02 
Spectral class A2 IV
Astrometry
Radial velocity (−5.1 ± 2.3) km / s
parallax (28.82 ± 0.11)  mas
distance (113.2 ± 0.4)  ly
(34.70 ± 0.13)  pc  
Visual absolute brightness M vis −1.0 mag
Proper movement 
Rec. Share: (−156.47 ± 0.14)  mas / a
Dec. portion: (+108.95 ± 0.11)  mas / a
Physical Properties
Dimensions M
radius 5.7  R
Luminosity

210  L

Effective temperature 9100  K
Rotation time 2.1 days
Other names
and catalog entries
Bayer name β Carinae
Cordoba Survey CD −69 ° 600
Bright Star Catalog HR 3685 [1]
Henry Draper Catalog HD 80007 [2]
Gliese catalog FY 9292 [3]
Hipparcos catalog HIP 45238 [4]
SAO catalog SAO 250495 [5]
Tycho catalog TYC 9200-2603-1 [6]
2MASS catalog 2MASS J09131197-6943017 [7]
Other names Miaplacidus, FK5 348
annotation
  1. estimated from apparent brightness and distance

β Carinae (Beta Carinae) is the second brightest star (1.7 mag) in the constellation Kiel des Schiff in the southern star sky. The star is a sub-giant of the spectral class A2, which is around 110 light years away.

The star bears the historical proper name Miaplacidus . The name origin of the first syllable is possibly in the plural of the Arabic Mâ (water). However, it may also refer to navigation on the water. “Miaplacidus” (Arabic / Latin) could literally mean “calm waters”. Other spelling: Maiaplacidus.

See also

Web links

Individual evidence

  1. a b c Hipparcos catalog (ESA 1997)
  2. a b c Bright Star Catalog
  3. Pulkovo radial velocities for 35493 HIP stars
  4. a b c Hipparcos, the New Reduction (van Leeuwen, 2007)