Imaginary Picture of Kepler-402 b

Display orbital revolution of Kepler-402 b around the hoststar Kepler-402
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Exoplanet Name : Kepler-402 b
Alternate Name : "2MASS J19132885+4321165 b, K02722.03, KIC 7673192 b, KOI-2722 b, KOI-2722.03, WISE J191328.84+432116.5 b"
Status : Confirmed
Radius (Rjup / Re): 0.1090 (Rjup) 1.2218 (Rearth)
Mass (Mjup / Me): 0.0063 (Mjup) 2.0133 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0510 (AU) 0.0510 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0110
Orbital Period(Observed/Estimated) 4.03 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.3487
Star Radiation at Atmospheric Boundary: 807069.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1337.7 (K)
Blackbody T 0.3(K) 1256.3 (K)
Blackbody T 0.7(K) 1016.5 (K)
Tidally Locked Blackbody T 0.1(K) 1590.8 (K)
Tidally Locked Blackbody T 0.3(K) 1494.0 (K)
Size Class: super-Earth-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-402
Alternate Name : "2MASS J19132885+4321165, KIC 7673192, KOI-2722, WISE J191328.84+432116.5"
Star Distance(LY) : 2038.8
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 0.0 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6119 (K)
Spectral type : G0
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.2
Absolute Magnitude: 3.3
Apparent Magnitude: 12.3
Right Ascension(RA) 288.3702
Declination (DEC) 43.3546
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-402+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-402%20b/
Kepler-402 b
Kepler-402 b

  • Kepler-402 b is an exoplanet orbiting the star Kepler-402, located about 2038.8 light-years (625.1 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-402 has apparent magnitude of 12.3, with absolute magnitude of 3.3.
  • In this planetary system, the extrasolar planet Kepler-402 b orbits around the star Kepler-402 every 4.0 days with its orbital distance of 0.05 AU ( 7629491.4 km)
  • (Projected orbit of Kepler-402 b around its host star Kepler-402)


  • The Star Kepler-402 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.896 AU ( 134085339.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.239 AU ( 185340980.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.888 AU ( 282418638.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.778 AU ( 415591397.9 km)
  • Radiation at Planetary Boundary of Kepler-402 b : 807069.30 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-402)



  • Kopparapu Recent Venus for Star Kepler-402 distance : 0.910 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-402 distance : 1.152 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-402 distance : 1.113 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-402 distance : 1.220 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-402 distance : 2.018 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-402 distance : 2.129 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-402)



  • Original Kopparapu Recent Venus for Star Kepler-402 distance : 0.918 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-402 distance : 1.183 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-402 distance : 1.214 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-402 distance : 2.055 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-402 distance : 2.137 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-402)



    (Position in Stellar Map of star Kepler-402 and its Exoplanet Kepler-402 b)



    (Zoomed position in Stellar Map of star Kepler-402 and its Exoplanet Kepler-402 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-402*)
    *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