Imaginary Picture of KOI-55 c

Display orbital revolution of KOI-55 c around the hoststar KOI-55
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Exoplanet Name : KOI-55 c
Alternate Name : "KOI-55 c, 2MASS J19452546+4105339 c, KIC 5807616 c, Kepler-70 c, WISE J194525.47+410534.7 c"
Status : Confirmed
Radius (Rjup / Re): 0.0770 (Rjup) 0.8631 (Rearth)
Mass (Mjup / Me): 0.0021 (Mjup) 0.6677 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0076 (AU) 0.0076 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0009
Orbital Period(Observed/Estimated) 0.34 (Days Obs.) 0.34 (Days Est.)
Surface Gravity (G Earth) 0.8963
Star Radiation at Atmospheric Boundary: 517331806.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 6731.1 (K)
Blackbody T 0.3(K) 6321.2 (K)
Blackbody T 0.7(K) 5114.5 (K)
Tidally Locked Blackbody T 0.1(K) 8004.7 (K)
Tidally Locked Blackbody T 0.3(K) 7517.2 (K)
Size Class: Earth-size
Mass Class:
Detection Type : Default
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : KOI-55
Alternate Name : "KOI-55, 2MASS J19452546+4105339, KIC 5807616, Kepler-70, WISE J194525.47+410534.7"
Star Distance(LY) : 0.0
Stellar Radius(Rsun) : 0.2 (Rsun Measured)
Stellar Mass(Msun) : 0.5 (Msun Measured) 0.5 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 27730 (K)
Spectral type : B
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.0
Absolute Magnitude: 25.0
Apparent Magnitude: 14.9
Right Ascension(RA) 296.3561
Declination (DEC) 41.0928
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title 0
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-70++&submit=SIMBAD+search
Open Exoplanet Database Link 0
KOI-55 c
KOI-55 c

  • KOI-55 c is an exoplanet orbiting the star KOI-55. Its discovery was publicly announced on 2011.
  • The host star KOI-55 has apparent magnitude of 14.9, with absolute magnitude of 25.0.
  • It is 0.5 times more massive and 0.2 times bigger compared with our Sun. The surface temperature is 27730 with its spectral types of B
  • In this planetary system, the extrasolar planet KOI-55 c orbits around the star KOI-55 every 0.3 days with its orbital distance of 0.01 AU ( 1136943.8 km)
  • (Projected orbit of KOI-55 c around its host star KOI-55)


  • The Star KOI-55 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 3.382 AU ( 505887431.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 4.674 AU ( 699268634.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 7.123 AU ( 1065530650.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 10.481 AU ( 1567975030.4 km)
  • Radiation at Planetary Boundary of KOI-55 c : 517331806.14 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star KOI-55)



  • Kopparapu Recent Venus for Star KOI-55 distance : nan AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star KOI-55 distance : nan AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star KOI-55 distance : nan AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star KOI-55 distance : nan AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star KOI-55 distance : nan AU
  • Kopparapu Outer Boundary for Early Mars for Star KOI-55 distance : nan AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star KOI-55)



  • Original Kopparapu Recent Venus for Star KOI-55 distance : nan AU
  • Original Kopparapu Runaway Greenhouse for Star KOI-55 distance : nan AU
  • Original Kopparapu Moist Greenhouse for Star KOI-55 distance : nan AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star KOI-55 distance : nan AU
  • Original Kopparapu Outer Boundary for Early Mars for Star KOI-55 distance : nan AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star KOI-55)



    (Position in Stellar Map of star KOI-55 and its Exoplanet KOI-55 c)



    (Zoomed position in Stellar Map of star KOI-55 and its Exoplanet KOI-55 c (zoom level 3))

    (Synthetic Spectrum of star KOI-55*)
    *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