Imaginary Picture of Kepler-1285 b

Display orbital revolution of Kepler-1285 b around the hoststar Kepler-1285
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Exoplanet Name : Kepler-1285 b
Alternate Name : "2MASS J18472048+4409213 b, K02593.01, KIC 8212002 b, KOI-2593 b, KOI-2593.01, WISE J184720.48+440921.2 b"
Status : Confirmed
Radius (Rjup / Re): 0.0870 (Rjup) 0.9752 (Rearth)
Mass (Mjup / Me): 0.0028 (Mjup) 0.8945 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.1253 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0405
Orbital Period(Observed/Estimated) 14.80 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.9406
Star Radiation at Atmospheric Boundary: 253716.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1001.7 (K)
Blackbody T 0.3(K) 940.7 (K)
Blackbody T 0.7(K) 761.1 (K)
Tidally Locked Blackbody T 0.1(K) 1191.2 (K)
Tidally Locked Blackbody T 0.3(K) 1118.7 (K)
Size Class: 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-1285
Alternate Name : "2MASS J18472048+4409213, KIC 8212002, KOI-2593, WISE J184720.48+440921.2"
Star Distance(LY) : 1376.8
Stellar Radius(Rsun) : 1.5 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 2.8 (GY)
Temperature : 6213 (K)
Spectral type : G0
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.2
Absolute Magnitude: 2.7
Apparent Magnitude: 10.8
Right Ascension(RA) 281.8354
Declination (DEC) 44.1559
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. Batalha11"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 428 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-1285+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1285%20b/
Kepler-1285 b
Kepler-1285 b

  • Kepler-1285 b is an exoplanet orbiting the star Kepler-1285, located about 1376.8 light-years (422.1 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1285 has apparent magnitude of 10.8, with absolute magnitude of 2.7.
  • It is 1.2 times more massive and 1.5 times bigger compared with our Sun. The surface temperature is 6213 with its spectral types of G0
  • In this planetary system, the extrasolar planet Kepler-1285 b orbits around the star Kepler-1285 every 14.8 days with its orbital distance of 0.13 AU ( 18751520.4 km)
  • (Projected orbit of Kepler-1285 b around its host star Kepler-1285)


  • The Star Kepler-1285 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.235 AU ( 184774193.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.707 AU ( 255406222.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.602 AU ( 389182561.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.828 AU ( 572699188.7 km)
  • Radiation at Planetary Boundary of Kepler-1285 b : 253716.71 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1285)



  • Kopparapu Recent Venus for Star Kepler-1285 distance : 1.247 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1285 distance : 1.579 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1285 distance : 1.525 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1285 distance : 1.671 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1285 distance : 2.760 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1285 distance : 2.911 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1285)



  • Original Kopparapu Recent Venus for Star Kepler-1285 distance : 1.260 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1285 distance : 1.620 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1285 distance : 1.667 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1285 distance : 2.810 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1285 distance : 2.922 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1285)



    (Position in Stellar Map of star Kepler-1285 and its Exoplanet Kepler-1285 b)



    (Zoomed position in Stellar Map of star Kepler-1285 and its Exoplanet Kepler-1285 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1285*)
    *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