Imaginary Picture of pi Men c
/
Exoplanet Name : pi Men c
Alternate Name : HD 39091 c
Radius (Rjup / Re): 0.1838 (Rjup) 2.0602 (Rearth)
Mass (Mjup / Me): 0.0152 (Mjup) 4.8231 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0670 (AU) 0.0670 (AU Est.)
Eccentricity : 0.1500
Orbital Period(Yrs) 0.0172
Orbital Period(Observed/Estimated) 6.27 (Days Obs.) 6.06 (Days Est.)
Star Radiation at Atmospheric Boundary: 438799.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1148.7 (K)
Blackbody T 0.3(K) 1078.8 (K)
Blackbody T 0.7(K) 872.8 (K)
Tidally Locked Blackbody T 0.1(K) 1366.1 (K)
Tidally Locked Blackbody T 0.3(K) 1282.9 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : pi Men
Alternate Name : HD 39091
Star Distance(LY) : 59.6
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 3.0 (GY)
Temperature : 6037 (K)
Spectral type : G0V
Metalicity : 0.1
Absolute Magnitude: 4.4
Apparent Magnitude: 5.7
Right Ascension(RA) 84.2912
Declination (DEC) -80.4691
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+39091&submit=SIMBAD+search
Open Exoplanet Database Link
pi Men c
pi Men c

  • pi Men c is an exoplanet orbiting the star pi Men, located about 59.6 light-years (18.3 pc) away from Solar System. Its discovery was publicly announced on 2018.
  • The host star pi Men has apparent magnitude of 5.7, with absolute magnitude of 4.4.
  • It is 1.1 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 6037 with its spectral types of G0V
  • In this planetary system, the extrasolar planet pi Men c orbits around the star pi Men every 6.3 days with its orbital distance of 0.07 AU ( 10026049.3 km)
  • (Projected orbit of pi Men c around its host star pi Men)


  • The Star pi Men 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.868 AU ( 129925126.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.200 AU ( 179590478.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.829 AU ( 273656146.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.692 AU ( 402697007.4 km)
  • Radiation at Planetary Boundary of pi Men c : 438799.41 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star pi Men)



  • Kopparapu Recent Venus for Star pi Men distance : 0.886 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star pi Men distance : 1.122 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star pi Men distance : 1.084 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star pi Men distance : 1.188 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star pi Men distance : 1.969 AU
  • Kopparapu Outer Boundary for Early Mars for Star pi Men distance : 2.077 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star pi Men)



  • Original Kopparapu Recent Venus for Star pi Men distance : 0.892 AU
  • Original Kopparapu Runaway Greenhouse for Star pi Men distance : 1.152 AU
  • Original Kopparapu Moist Greenhouse for Star pi Men distance : 1.180 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star pi Men distance : 2.004 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star pi Men distance : 2.084 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star pi Men)



    (Position in Stellar Map of star pi Men and its Exoplanet pi Men c)



    (Zoomed position in Stellar Map of star pi Men and its Exoplanet pi Men c (zoom level 3))