Imaginary Picture of KOI-7913 b

Display orbital revolution of KOI-7913 b around the hoststar KOI-7913
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Exoplanet Name : KOI-7913 b
Alternate Name : Kepler-1975 b
Status : Confirmed
Radius (Rjup / Re): 0.1998 (Rjup) 2.2396 (Rearth)
Mass (Mjup / Me): 0.0176 (Mjup) 5.5842 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.1497 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0665
Orbital Period(Observed/Estimated) 24.28 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.1134
Star Radiation at Atmospheric Boundary: 4047.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 356.0 (K)
Blackbody T 0.3(K) 334.3 (K)
Blackbody T 0.7(K) 270.5 (K)
Tidally Locked Blackbody T 0.1(K) 423.3 (K)
Tidally Locked Blackbody T 0.3(K) 397.6 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : KOI-7913
Alternate Name :
Star Distance(LY) : 891.2
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3300 (K)
Spectral type : M9
UV portion[%]: 0.2
Visible portion[%]: 11.2
IR portion[%]: 88.6
Metalicity : 0.0
Absolute Magnitude: 7.0
Apparent Magnitude: 14.2
Right Ascension(RA) 286.7500
Declination (DEC) 45.1586
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.cds.unistra.fr/simbad/sim-basic?Ident=KOI-7913&submit=SIMBAD+search
Open Exoplanet Database Link
KOI-7913 b
KOI-7913 b

  • KOI-7913 b is an exoplanet orbiting the star KOI-7913, located about 891.2 light-years (273.2 pc) away from Solar System. Its discovery was publicly announced on 2022.
  • The host star KOI-7913 has apparent magnitude of 14.2, with absolute magnitude of 7.0.
  • It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 3300 with its spectral types of M9
  • In this planetary system, the extrasolar planet KOI-7913 b orbits around the star KOI-7913 every 24.3 days with its orbital distance of 0.15 AU ( 22401918.2 km)
  • (Projected orbit of KOI-7913 b around its host star KOI-7913)


  • The Star KOI-7913 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.186 AU ( 27881304.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.258 AU ( 38539248.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.393 AU ( 58725286.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.578 AU ( 86416831.0 km)
  • Radiation at Planetary Boundary of KOI-7913 b : 4047.58 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star KOI-7913)



  • Kopparapu Recent Venus for Star KOI-7913 distance : 0.211 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star KOI-7913 distance : 0.267 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star KOI-7913 distance : 0.258 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star KOI-7913 distance : 0.284 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star KOI-7913 distance : 0.525 AU
  • Kopparapu Outer Boundary for Early Mars for Star KOI-7913 distance : 0.554 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star KOI-7913)



  • Original Kopparapu Recent Venus for Star KOI-7913 distance : 0.210 AU
  • Original Kopparapu Runaway Greenhouse for Star KOI-7913 distance : 0.277 AU
  • Original Kopparapu Moist Greenhouse for Star KOI-7913 distance : 0.277 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star KOI-7913 distance : 0.533 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star KOI-7913 distance : 0.554 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star KOI-7913)



    (Position in Stellar Map of star KOI-7913 and its Exoplanet KOI-7913 b)



    (Zoomed position in Stellar Map of star KOI-7913 and its Exoplanet KOI-7913 b (zoom level 3))

    (Synthetic Spectrum of star KOI-7913*)
    *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