Imaginary Picture of Kepler-161 c

Display orbital revolution of Kepler-161 c around the hoststar Kepler-161
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Exoplanet Name : Kepler-161 c
Alternate Name : "2MASS J19220395+4305017 c, K00457.02, KIC 7440748 c, KOI-457 c, KOI-457.02, WISE J192203.95+430501.9 c"
Status : Confirmed
Radius (Rjup / Re): 0.1830 (Rjup) 2.0512 (Rearth)
Mass (Mjup / Me): 0.0162 (Mjup) 5.1462 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0680 (AU) 0.0680 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0193
Orbital Period(Observed/Estimated) 7.06 (Days Obs.) 7.38 (Days Est.)
Surface Gravity (G Earth) 1.2231
Star Radiation at Atmospheric Boundary: 103189.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 799.9 (K)
Blackbody T 0.3(K) 751.2 (K)
Blackbody T 0.7(K) 607.8 (K)
Tidally Locked Blackbody T 0.1(K) 951.3 (K)
Tidally Locked Blackbody T 0.3(K) 893.4 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-161
Alternate Name : "2MASS J19220395+4305017, KIC 7440748, KOI-457, WISE J192203.95+430501.9"
Star Distance(LY) : 1417.1
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5108 (K)
Spectral type : K1
UV portion[%]: 4.0
Visible portion[%]: 38.6
IR portion[%]: 57.4
Metalicity : -0.1
Absolute Magnitude: 4.6
Apparent Magnitude: 12.8
Right Ascension(RA) 290.5165
Declination (DEC) 43.0838
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-161+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-161%20c/
Kepler-161 c
Kepler-161 c

  • Kepler-161 c is an exoplanet orbiting the star Kepler-161, located about 1417.1 light-years (434.5 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-161 has apparent magnitude of 12.8, with absolute magnitude of 4.6.
  • It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5108 with its spectral types of K1
  • In this planetary system, the extrasolar planet Kepler-161 c orbits around the star Kepler-161 every 7.1 days with its orbital distance of 0.07 AU ( 10172655.2 km)
  • (Projected orbit of Kepler-161 c around its host star Kepler-161)


  • The Star Kepler-161 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.427 AU ( 63926611.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.591 AU ( 88363283.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.900 AU ( 134646088.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.324 AU ( 198137618.2 km)
  • Radiation at Planetary Boundary of Kepler-161 c : 103189.17 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-161)



  • Kopparapu Recent Venus for Star Kepler-161 distance : 0.460 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-161 distance : 0.582 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-161 distance : 0.562 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-161 distance : 0.617 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-161 distance : 1.051 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-161 distance : 1.108 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-161)



  • Original Kopparapu Recent Venus for Star Kepler-161 distance : 0.456 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-161 distance : 0.600 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-161 distance : 0.603 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-161 distance : 1.069 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-161 distance : 1.111 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-161)



    (Position in Stellar Map of star Kepler-161 and its Exoplanet Kepler-161 c)



    (Zoomed position in Stellar Map of star Kepler-161 and its Exoplanet Kepler-161 c (zoom level 3))

    (Synthetic Spectrum of star Kepler-161*)
    *Yamashiki YA et al. 2019 ApJ 881 114
    MUSCLES Paper I - France et al. 2016 ApJ 820 89
    MUSCLES Paper II- Youngblood et al. 2016 ApJ 824 101
    MUSCLES Paper III- Loyd et al. 2016 ApJ 824 102