HD 68988

from Wikipedia, the free encyclopedia
Stern
HD 68988
AladinLite
Observation
dates equinoxJ2000.0 , epoch : J2000.0
Constellation Big Bear
Right ascension 08 h 18 m 22.17 s
declination + 61 ° 27 ′ 38.6 ″
Apparent brightness 8.2 likes
Typing
Known exoplanets 1
Spectral class G0
Astrometry
Radial velocity (−69.6 ± 0.2) km / s
parallax (18.34 ± 0.78)  mas
distance (177.8 ± 7.6)  ly
(54.5 ± 2.3)  pc  
Visual absolute brightness M vis +4.52 mag
Proper movement 
Rec. Share: (129.01 ± 0.52)  mas / a
Dec. portion: (31.26 ± 0.62)  mas / a
Physical Properties
Dimensions 1.18  M
radius 1.14  R
Effective temperature 5767  K
Metallicity [Fe / H] 0.24
Age 6.78 x 10 9  a
Other names
and catalog entries
Bonn survey BD +61 1038
Henry Draper Catalog HD 68988 [1]
Hipparcos catalog HIP 40687 [2]
SAO catalog SAO 14467 [3]
Tycho catalog TYC 4126-818-1 [4]Template: Infobox star / maintenance / specification of the TYC catalog
annotation
  1. ↑ Calculated from apparent brightness and distance.

HD 68988 is a yellow dwarf 189.2 light years from Earth with a right ascension of 08h 18m 22s and a declination of + 61 ° 27 '38 ". It has an apparent magnitude of 8.21 mag. In 2001 Paul Butler discovered an extrasolar planet orbiting this star, named HD 68988 b .

Web links

Individual evidence

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