HD 168443

HD 168443 Planetary System

Location

Constellation:  Serpens Cauda
Right Ascension:  18 20 03.93
Declination:  -09 35 44.6
Distance from Sol:  107.7 Light Years

Basic Data

Spectral Type:  G5
Apparent Magnitude:  6.92
Radius:  1.5 Solar Radii
Effective Temperature:  5770 Kelvin
Age:  2700 Million Years

Habitability

Inner Edge of Habitability Zone:  0.74 AU
Outer Edge of Habitability Zone:  2.33 AU

System Components
(Mass in Multiples of Jupiter's Mass)

HD 168443 B

Basic Data

Parent Star:  HD 168443 (G5)
Discovery Status:  Confirmed
Planet Type:  Blue Giant, Eccentric

Physical Data

Mass ( M sin i ):  7.73 Jupiters
Periastron Distance:  0.13 AU
Mean Distance:  0.295 AU
Apastron Distance:  0.45 AU
Orbital Period:  58.1 Days
Eccentricity:  0.53
Radial Velocity of Star:  472.7 m/s

 Inferred Properties

Average Angular Size of Star:  2.704°
Planet Appearance:
 Blue with sparse sulfur based clouds
Periastron Temp:  820 Kelvin
Mean Temp:  562 Kelvin
Apastron Temp:  455 Kelvin

Discovery Facts

Year Discovered:  1998
Detection Method:  Doppler Spectroscopy
Discovered By:  Marcy et al

HD 168443 C

  Basic Data

Parent Star:  HD 168443 (G5)
Discovery Status:  Confirmed
Planet Type:  Brown Dwarf
 

Physical Data

Mass ( M sin i ):  17.1 Jupiters
Periastron Distance:  2.29 AU
Mean Distance:  2.87 AU
Apastron Distance:  3.44 AU
Orbital Period:  4.85 Years
Eccentricity:  0.2
Argument of Perihelion (omega):  172.9°
Radial Velocity of Star:  289 m/s

 Inferred Properties

Average Angular Size of Star:  0.278°
Planet Appearance:
 Visible red glow, silicate and iron clouds possible
Periastron Temp:  201 Kelvin
Mean Temp:  180 Kelvin
Apastron Temp:  164 Kelvin

Discovery Facts

Year Discovered:  2001
Detection Method:  Doppler Spectroscopy
Discovered By:  Marcy et al

Planetary Orbits Around HD 168443

Position in Serpens Cauda