Imaginary Picture of Kepler-994 b

Display orbital revolution of Kepler-994 b around the hoststar Kepler-994
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Exoplanet Name : Kepler-994 b
Alternate Name : "2MASS J19161733+4724254 b, K01880.01, KIC 10332883 b, KOI-1880 b, KOI-1880.01, WISE J191617.31+472425.0 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) 0.0177 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0032
Orbital Period(Observed/Estimated) 1.15 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.5925
Star Radiation at Atmospheric Boundary: 333258.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1072.4 (K)
Blackbody T 0.3(K) 1007.1 (K)
Blackbody T 0.7(K) 814.8 (K)
Tidally Locked Blackbody T 0.1(K) 1275.3 (K)
Tidally Locked Blackbody T 0.3(K) 1197.6 (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-994
Alternate Name : "2MASS J19161733+4724254, KIC 10332883, KOI-1880, WISE J191617.31+472425.0"
Star Distance(LY) : 613.6
Stellar Radius(Rsun) : 0.6 (Rsun Measured)
Stellar Mass(Msun) : 0.6 (Msun Measured) 0.6 (Msun Estimated)
Star Age : 3.2 (GY)
Temperature : 3950 (K)
Spectral type : K7
UV portion[%]: 0.6
Visible portion[%]: 23.3
IR portion[%]: 76.0
Metalicity : -0.1
Absolute Magnitude: 5.9
Apparent Magnitude: 12.3
Right Ascension(RA) 289.0722
Declination (DEC) 47.4071
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 801 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-994&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-994%20b/
Kepler-994 b
Kepler-994 b

  • Kepler-994 b is an exoplanet orbiting the star Kepler-994, located about 613.6 light-years (188.1 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-994 has apparent magnitude of 12.3, with absolute magnitude of 5.9.
  • It is 0.6 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 3950 with its spectral types of K7
  • In this planetary system, the extrasolar planet Kepler-994 b orbits around the star Kepler-994 every 1.2 days with its orbital distance of 0.02 AU ( 2650656.0 km)
  • (Projected orbit of Kepler-994 b around its host star Kepler-994)


  • The Star Kepler-994 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.200 AU ( 29934638.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.277 AU ( 41377492.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.421 AU ( 63050141.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.620 AU ( 92781045.8 km)
  • Radiation at Planetary Boundary of Kepler-994 b : 333258.08 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-994)



  • Kopparapu Recent Venus for Star Kepler-994 distance : 0.224 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-994 distance : 0.284 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-994 distance : 0.274 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-994 distance : 0.302 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-994 distance : 0.540 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-994 distance : 0.570 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-994)



  • Original Kopparapu Recent Venus for Star Kepler-994 distance : 0.222 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-994 distance : 0.294 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-994 distance : 0.293 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-994 distance : 0.549 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-994 distance : 0.571 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-994)



    (Position in Stellar Map of star Kepler-994 and its Exoplanet Kepler-994 b)



    (Zoomed position in Stellar Map of star Kepler-994 and its Exoplanet Kepler-994 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-994*)
    *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