HD 217107

HD 217107 Planetary System

Yellow Main Sequence Star

Location
 
Constellation:  Pisces
Right Ascension:  22 58 15.54
Declination:  -02 23 43.4
Distance from Sol:  120.7 Light Years
 
 
  Basic Data
Alternate Designations:  HR 8734
Spectral Type:  G8 IV
Apparent Magnitude:  6.16
Radius:  1.31 Solar Radii
Effective Temperature:  5570 Kelvin
 
Habitability 
Inner Edge of Habitability Zone:  0.61 AU
Outer Edge of Habitability Zone:  1.9 AU

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

HD 217107 b

Hot Jupiter
Basic Data
Parent Star:  HD 217107 (G8 IV)
Discovery Status:  Confirmed
Planet Type:  Hot Jupiter
 
  Physical Data
Mass ( M sin i ):  1.28 Jupiters
Periastron Distance:  0.03 AU
Mean Distance:  0.04 AU
Apastron Distance:  0.04 AU
Orbital Period:  7.11 Days
Eccentricity:  0.14
Argument of Perihelion (omega):  22°
 
  Inferred Properties
Average Angular Size of Star:  17.42°
Planet Appearance:
 Silicate clouds, dim red glow
Periastron Temp:  1486 Kelvin
Mean Temp:  1378 Kelvin
Apastron Temp:  1291 Kelvin
 
Discovery Facts
Year Discovered:  1998
Detection Method:  Doppler Spectroscopy
Discovered By:  Marcy etal

  HD 217107 c
 
Jovian Planet
 
Basic Data
Parent Star:  HD 217107 (G8 IV)
Discovery Status:  Unconfirmed
Planet Type:  Jovian Planet

Physical Data
Mass ( M sin i ):  4 Jupiters
Orbital Period:  2 Years
 
Discovery Facts
 
Year Discovered:  1999
Detection Method:  Doppler Spectroscopy
Discovered By:  Marcy et al
 Planetary Orbit  Around HD 217107

 Position In  Pisces