Angetenar

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Star
Angetenar (τ2 Eri)
AladinLite
Observation
dates equinox :  J2000.0 , epoch : J2000.0
Constellation Eridanus
Right ascension 02 h 51 m 2.32 s
declination -21 ° 00 ′ 14.5 ″
Apparent brightness 4.76 likes
Typing
B − V color index +0.91 
U − B color index +0.63 
R − I index +0.47 
Spectral class K0 III
Astrometry
Radial velocity (−8.6 ± 0.8) km / s
parallax (17.45 ± 0.20)  mas
distance (187 ± 2)  ly
(57.31 ± 0.66)  pc  
Visual absolute brightness M vis +0.97 mag
Proper movement 
Rec. Share: (−38.52 ± 0.15)  mas / a
Dec. portion: (−16.05 ± 0.18)  mas / a
Physical Properties
Other names
and catalog entries
Bayer name τ 2 Eridani
Flamsteed name 2 Eridani
Bonn survey BD -21 ° 509
Bright Star Catalog HR 850 [1]
Henry Draper Catalog HD 17824 [2]
Hipparcos catalog HIP 13288 [3]
SAO catalog SAO 168094 [4]
Tycho catalog TYC 5870-1028-1 [5]
annotation
  1. ↑ Calculated from apparent brightness and distance.

Angetenar (from Arabic ﺣﻨﺎﻳﺖ, DMG ḥināyat , andﻧﻬﺮ, DMG nahr , "bend of the river") is the name of the star τ2 Eridani (Tau2 Eridani). Angetenar belongs to the spectral class K0 III and has an apparent brightness of approx. +4.7 mag. It is about 187 light years away .

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)