Imaginary Picture of Kepler-842 b

Display orbital revolution of Kepler-842 b around the hoststar Kepler-842
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Exoplanet Name : Kepler-842 b
Alternate Name : "2MASS J19291885+4939127 b, K01424.01, KIC 11611600 b, KOI-1424 b, KOI-1424.01, WISE J192918.86+493912.7 b"
Status : Confirmed
Radius (Rjup / Re): 0.1430 (Rjup) 1.6029 (Rearth)
Mass (Mjup / Me): 0.0129 (Mjup) 4.0914 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0206 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0033
Orbital Period(Observed/Estimated) 1.22 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.5925
Star Radiation at Atmospheric Boundary: 790572.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1330.8 (K)
Blackbody T 0.3(K) 1249.8 (K)
Blackbody T 0.7(K) 1011.2 (K)
Tidally Locked Blackbody T 0.1(K) 1582.7 (K)
Tidally Locked Blackbody T 0.3(K) 1486.3 (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-842
Alternate Name : "2MASS J19291885+4939127, KIC 11611600, KOI-1424, WISE J192918.86+493912.7"
Star Distance(LY) : 1737.4
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 4.4 (GY)
Temperature : 4836 (K)
Spectral type : K3
UV portion[%]: 2.5
Visible portion[%]: 35.7
IR portion[%]: 61.8
Metalicity : -0.0
Absolute Magnitude: 4.9
Apparent Magnitude: 13.5
Right Ascension(RA) 292.3286
Declination (DEC) 49.6535
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Timothy D. Morton, Stephen T. Bryson, Jeffrey L. Coughlin, Jason F. Rowe, Ganesh Ravichandran, Erik A. Petigura, Michael R. Haas, and Natalie M. Batalha"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 707 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-842&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-842%20b/
Kepler-842 b
Kepler-842 b

  • Kepler-842 b is an exoplanet orbiting the star Kepler-842, located about 1737.4 light-years (532.7 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-842 has apparent magnitude of 13.5, with absolute magnitude of 4.9.
  • It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4836 with its spectral types of K3
  • In this planetary system, the extrasolar planet Kepler-842 b orbits around the star Kepler-842 every 1.2 days with its orbital distance of 0.02 AU ( 3076339.1 km)
  • (Projected orbit of Kepler-842 b around its host star Kepler-842)


  • The Star Kepler-842 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.358 AU ( 53510055.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.494 AU ( 73964879.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.753 AU ( 112706108.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.109 AU ( 165851976.2 km)
  • Radiation at Planetary Boundary of Kepler-842 b : 790572.66 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-842)



  • Kopparapu Recent Venus for Star Kepler-842 distance : 0.390 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-842 distance : 0.494 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-842 distance : 0.477 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-842 distance : 0.523 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-842 distance : 0.901 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-842 distance : 0.950 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-842)



  • Original Kopparapu Recent Venus for Star Kepler-842 distance : 0.385 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-842 distance : 0.509 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-842 distance : 0.510 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-842 distance : 0.916 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-842 distance : 0.952 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-842)



    (Position in Stellar Map of star Kepler-842 and its Exoplanet Kepler-842 b)



    (Zoomed position in Stellar Map of star Kepler-842 and its Exoplanet Kepler-842 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-842*)
    *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