HD 167042

from Wikipedia, the free encyclopedia
Star
HD 167042
AladinLite
Observation
dates equinoxJ2000.0 , epoch : J2000.0
Constellation Dragon
Right ascension 18 h 10 m 31.64 s
declination + 54 ° 17 ′ 11.6 ″
Apparent brightness 5.97 likes
Typing
Known exoplanets 1
B − V color index +0.94 
U − B color index +0.72 
R − I index +0.48 
Spectral class K1 III
Astrometry
Radial velocity (−17.8 ± 0.3) km / s
parallax (19.91 ± 0.26)  mas
distance (164 ± 2)  ly
(50.23 ± 0.66)  pc  
Visual absolute brightness M vis +2.47 mag
Proper movement 
Rec. Share: (107.94 ± 0.29)  mas / a
Dec. portion: (247.35 ± 0.27)  mas / a
Physical Properties
Dimensions approx. 1.6  M
radius approx. 4.3  R
Effective temperature (5020 ± 75)  K.
Age approx. 2 · 10 9  a
Other names
and catalog entries
Bonn survey BD + 54 ° 1950
Bright Star Catalog HR 6817 [1]
Henry Draper Catalog HD 167042 [2]
Hipparcos catalog HIP 89047 [3]
SAO catalog SAO 30784 [4]
Tycho catalog TYC 3903-2143-1 [5]Template: Infobox star / maintenance / specification of the TYC catalog
Other names FK5 3447 • LTT 15382 • Wolf 1415
annotation
  1. ↑ Calculated from apparent brightness and distance.

HD 167042 is a giant star of spectral class K1 in the constellation of Dragon, about 164  light years from Earth . It has an apparent magnitude of 6.0 mag. The star is orbited by an exoplanet called HD 167042 b .

Exoplanet

HD 167042 b is an exoplanet orbiting the central star with a period of just over 400  days . The exoplanet has a minimum mass of around 1.6 Jupiter's masses, an eccentricity of around 0.03 and a major semi-axis of around 1.3 astronomical units . It was discovered using the radial velocity method.

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)