Imaginary Picture of KOI-883 b

Display orbital revolution of KOI-883 b around the hoststar 2MASS J19464393+4258043
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Exoplanet Name : KOI-883 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.1050 (Rjup) 12.3859 (Rearth)
Mass (Mjup / Me): 1.3226 (Mjup) 420.4923 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0335 (AU) 0.0335 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0074
Orbital Period(Observed/Estimated) 2.69 (Days Obs.) 2.67 (Days Est.)
Surface Gravity (G Earth) 2.7409
Star Radiation at Atmospheric Boundary: 241633.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 989.5 (K)
Blackbody T 0.3(K) 929.3 (K)
Blackbody T 0.7(K) 751.9 (K)
Tidally Locked Blackbody T 0.1(K) 1176.8 (K)
Tidally Locked Blackbody T 0.3(K) 1105.1 (K)
Size Class: 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 J19464393+4258043
Alternate Name : 7380537
Star Distance(LY) : 2394.7
Stellar Radius(Rsun) : 0.6 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.7 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 4809 (K)
Spectral type : K3
UV portion[%]: 2.5
Visible portion[%]: 35.5
IR portion[%]: 62.0
Metalicity : -0.4
Absolute Magnitude: 6.1
Apparent Magnitude: 15.4
Right Ascension(RA) 296.6831
Declination (DEC) 42.9679
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=2MASS+J19464393%2B4258043&submit=SIMBAD+search
Open Exoplanet Database Link
KOI-883 b
KOI-883 b

  • KOI-883 b is an exoplanet orbiting the star 2MASS J19464393+4258043, located about 2394.7 light-years (734.2 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star 2MASS J19464393+4258043 has apparent magnitude of 15.4, with absolute magnitude of 6.1.
  • It is 0.7 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 4809 with its spectral types of K3
  • In this planetary system, the extrasolar planet KOI-883 b orbits around the star 2MASS J19464393+4258043 every 2.7 days with its orbital distance of 0.03 AU ( 5011528.7 km)
  • (Projected orbit of KOI-883 b around its host star 2MASS J19464393+4258043)


  • The Star 2MASS J19464393+4258043 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.322 AU ( 48192409.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.445 AU ( 66614504.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.679 AU ( 101505762.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.998 AU ( 149370175.9 km)
  • Radiation at Planetary Boundary of KOI-883 b : 241633.00 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 2MASS J19464393+4258043)



  • Kopparapu Recent Venus for Star 2MASS J19464393+4258043 distance : 0.352 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star 2MASS J19464393+4258043 distance : 0.445 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 2MASS J19464393+4258043 distance : 0.430 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star 2MASS J19464393+4258043 distance : 0.472 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star 2MASS J19464393+4258043 distance : 0.813 AU
  • Kopparapu Outer Boundary for Early Mars for Star 2MASS J19464393+4258043 distance : 0.858 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 2MASS J19464393+4258043)



  • Original Kopparapu Recent Venus for Star 2MASS J19464393+4258043 distance : 0.347 AU
  • Original Kopparapu Runaway Greenhouse for Star 2MASS J19464393+4258043 distance : 0.459 AU
  • Original Kopparapu Moist Greenhouse for Star 2MASS J19464393+4258043 distance : 0.460 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 2MASS J19464393+4258043 distance : 0.827 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 2MASS J19464393+4258043 distance : 0.860 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star 2MASS J19464393+4258043)



    (Position in Stellar Map of star 2MASS J19464393+4258043 and its Exoplanet KOI-883 b)



    (Zoomed position in Stellar Map of star 2MASS J19464393+4258043 and its Exoplanet KOI-883 b (zoom level 3))

    (Synthetic Spectrum of star 2MASS J19464393+4258043*)
    *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