Imaginary Picture of KOI-7057 b

Display orbital revolution of KOI-7057 b around the hoststar 2MASS J19264939+4437067
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Exoplanet Name : KOI-7057 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.5290 (Rjup) 5.9296 (Rearth)
Mass (Mjup / Me): 0.1451 (Mjup) 46.1358 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0160 (AU) 0.0160 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0017
Orbital Period(Observed/Estimated) 0.62 (Days Obs.) 0.62 (Days Est.)
Surface Gravity (G Earth) 1.3122
Star Radiation at Atmospheric Boundary: 41509070.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 3582.4 (K)
Blackbody T 0.3(K) 3364.3 (K)
Blackbody T 0.7(K) 2722.1 (K)
Tidally Locked Blackbody T 0.1(K) 4260.3 (K)
Tidally Locked Blackbody T 0.3(K) 4000.8 (K)
Size Class: sub-Jupiter-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 : 2MASS J19264939+4437067
Alternate Name : 8559796
Star Distance(LY) : 4171.3
Stellar Radius(Rsun) : 1.8 (Rsun Measured)
Stellar Mass(Msun) : 1.4 (Msun Measured) 1.4 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 7105 (K)
Spectral type : F2
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.2
Absolute Magnitude: 2.5
Apparent Magnitude: 13.1
Right Ascension(RA) 291.7058
Declination (DEC) 44.6185
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=2MASS+J19264939%2B4437067&submit=SIMBAD+search
Open Exoplanet Database Link
KOI-7057 b
KOI-7057 b

  • KOI-7057 b is an exoplanet orbiting the star 2MASS J19264939+4437067, located about 4171.3 light-years (1278.9 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star 2MASS J19264939+4437067 has apparent magnitude of 13.1, with absolute magnitude of 2.5.
  • It is 1.4 times more massive and 1.8 times bigger compared with our Sun. The surface temperature is 7105 with its spectral types of F2
  • In this planetary system, the extrasolar planet KOI-7057 b orbits around the star 2MASS J19264939+4437067 every 0.6 days with its orbital distance of 0.02 AU ( 2393565.9 km)
  • (Projected orbit of KOI-7057 b around its host star 2MASS J19264939+4437067)


  • The Star 2MASS J19264939+4437067 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 2.017 AU ( 301680468.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.787 AU ( 417001245.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 4.248 AU ( 635417616.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 6.250 AU ( 935044858.6 km)
  • Radiation at Planetary Boundary of KOI-7057 b : 41509070.43 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 2MASS J19264939+4437067)



  • Kopparapu Recent Venus for Star 2MASS J19264939+4437067 distance : 1.939 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star 2MASS J19264939+4437067 distance : 2.456 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 2MASS J19264939+4437067 distance : 2.372 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star 2MASS J19264939+4437067 distance : 2.597 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star 2MASS J19264939+4437067 distance : 4.244 AU
  • Kopparapu Outer Boundary for Early Mars for Star 2MASS J19264939+4437067 distance : 4.476 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 2MASS J19264939+4437067)



  • Original Kopparapu Recent Venus for Star 2MASS J19264939+4437067 distance : 1.997 AU
  • Original Kopparapu Runaway Greenhouse for Star 2MASS J19264939+4437067 distance : 2.513 AU
  • Original Kopparapu Moist Greenhouse for Star 2MASS J19264939+4437067 distance : 2.643 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 2MASS J19264939+4437067 distance : 4.322 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 2MASS J19264939+4437067 distance : 4.495 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star 2MASS J19264939+4437067)



    (Position in Stellar Map of star 2MASS J19264939+4437067 and its Exoplanet KOI-7057 b)



    (Zoomed position in Stellar Map of star 2MASS J19264939+4437067 and its Exoplanet KOI-7057 b (zoom level 3))

    (Synthetic Spectrum of star 2MASS J19264939+4437067*)
    *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