Ras Elased Australis

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Star
Ras Elased Australis (ε Leonis)
AladinLite
Observation
dates equinoxJ2000.0 , epoch : J2000.0
Constellation lion
Right ascension 09 h 45 m 51.07 s
declination + 23 ° 46 ′ 27.3 ″
Apparent brightness 2.97 likes
Typing
B − V color index +0.80 
U − B color index +0.47 
R − I index +0.44 
Spectral class G0 II
Astrometry
Radial velocity (4.5 ± 0.1) km / s
parallax (13.22 ± 0.15)  mas
distance (247 ± 3)  ly
(75.6 ± 0.9)  pc  
Visual absolute brightness M vis −1.42 mag
Proper movement 
Rec. Share: (−45.61 ± 0.14)  mas / a
Dec. portion: (−9.21 ± 0.12)  mas / a
Physical Properties
Other names
and catalog entries
Bayer name ε Leonis
Flamsteed name 17 Leonis
Bonn survey BD + 24 ° 2129
Bright Star Catalog HR 3873 [1]
Henry Draper Catalog HD 84441 [2]
Hipparcos catalog HIP 47908 [3]
SAO catalog SAO 81004 [4]
Tycho catalog TYC 1960-1550-1 [5]
Other names FK5 367
annotation
  1. ↑ Calculated from apparent brightness and distance.

Ras Elased Australis (from Arabic رأس الأسد, DMG raʾs al-asad  'head of the lion', and Latin australis 'southern') is the proper name of the star ε Leonis (Epsilon Leonis ). Other names: Algenubi, Asad Australis .

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)