Imaginary Picture of Kepler-1254 d

Display orbital revolution of Kepler-1254 d around the hoststar Kepler-1254
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Exoplanet Name : Kepler-1254 d
Alternate Name : "2MASS J19004159+4846121 d, K02485.03, KIC 11125613 d, KOI-2485 d, KOI-2485.03, WISE J190041.59+484612.0 d"
Status : Confirmed
Radius (Rjup / Re): 0.1170 (Rjup) 1.3115 (Rearth)
Mass (Mjup / Me): 0.0082 (Mjup) 2.6041 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0577 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0157
Orbital Period(Observed/Estimated) 5.73 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.5141
Star Radiation at Atmospheric Boundary: 96896.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 787.4 (K)
Blackbody T 0.3(K) 739.5 (K)
Blackbody T 0.7(K) 598.3 (K)
Tidally Locked Blackbody T 0.1(K) 936.4 (K)
Tidally Locked Blackbody T 0.3(K) 879.4 (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-1254
Alternate Name : "2MASS J19004159+4846121, KIC 11125613, KOI-2485, WISE J190041.59+484612.0"
Star Distance(LY) : 2030.9
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 5.6 (GY)
Temperature : 4826 (K)
Spectral type : K2
UV portion[%]: 3.2
Visible portion[%]: 36.9
IR portion[%]: 59.9
Metalicity : -0.1
Absolute Magnitude: 4.9
Apparent Magnitude: 13.9
Right Ascension(RA) 285.1733
Declination (DEC) 48.7700
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Timothy D. Morton1, Stephen T. Bryson2, Jeffrey L. Coughlin2,3, Jason F. Rowe4, Ganesh Ravichandran5, Erik A. Petigura6,7, Michael R. Haas2, and Natalie M. Batalha13"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 447 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-1254+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1254%20d/
Kepler-1254 d
Kepler-1254 d

  • Kepler-1254 d is an exoplanet orbiting the star Kepler-1254, located about 2030.9 light-years (622.7 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1254 has apparent magnitude of 13.9, 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 4826 with its spectral types of K2
  • In this planetary system, the extrasolar planet Kepler-1254 d orbits around the star Kepler-1254 every 5.7 days with its orbital distance of 0.06 AU ( 8626943.6 km)
  • (Projected orbit of Kepler-1254 d around its host star Kepler-1254)


  • The Star Kepler-1254 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.351 AU ( 52534183.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.485 AU ( 72615970.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.740 AU ( 110650669.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.088 AU ( 162827307.0 km)
  • Radiation at Planetary Boundary of Kepler-1254 d : 96896.81 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1254)



  • Kopparapu Recent Venus for Star Kepler-1254 distance : 0.383 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1254 distance : 0.485 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1254 distance : 0.468 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1254 distance : 0.514 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1254 distance : 0.885 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1254 distance : 0.934 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1254)



  • Original Kopparapu Recent Venus for Star Kepler-1254 distance : 0.378 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1254 distance : 0.500 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1254 distance : 0.501 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1254 distance : 0.900 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1254 distance : 0.936 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1254)



    (Position in Stellar Map of star Kepler-1254 and its Exoplanet Kepler-1254 d)



    (Zoomed position in Stellar Map of star Kepler-1254 and its Exoplanet Kepler-1254 d (zoom level 3))

    (Synthetic Spectrum of star Kepler-1254*)
    *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