Imaginary Picture of Kepler-648 b

Display orbital revolution of Kepler-648 b around the hoststar Kepler-648
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Exoplanet Name : Kepler-648 b
Alternate Name : "2MASS J18553591+4501007 b, K00694.01, KIC 8802165 b, KOI-694 b, KOI-694.01, WISE J185535.91+450100.8 b"
Status : Confirmed
Radius (Rjup / Re): 0.2870 (Rjup) 3.2170 (Rearth)
Mass (Mjup / Me): 0.0246 (Mjup) 7.8206 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.1337 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0477
Orbital Period(Observed/Estimated) 17.42 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.7557
Star Radiation at Atmospheric Boundary: 65059.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 712.8 (K)
Blackbody T 0.3(K) 669.4 (K)
Blackbody T 0.7(K) 541.6 (K)
Tidally Locked Blackbody T 0.1(K) 847.7 (K)
Tidally Locked Blackbody T 0.3(K) 796.1 (K)
Size Class: Neptune-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-648
Alternate Name : "2MASS J18553591+4501007, KIC 8802165, KOI-694, WISE J185535.91+450100.8"
Star Distance(LY) : 2073.8
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 1.8 (GY)
Temperature : 5693 (K)
Spectral type : G3
UV portion[%]: 7.6
Visible portion[%]: 44.4
IR portion[%]: 48.0
Metalicity : 0.2
Absolute Magnitude: 3.8
Apparent Magnitude: 12.8
Right Ascension(RA) 283.8997
Declination (DEC) 45.0169
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 561 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-648+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-648%20b/
Kepler-648 b
Kepler-648 b

  • Kepler-648 b is an exoplanet orbiting the star Kepler-648, located about 2073.8 light-years (635.8 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-648 has apparent magnitude of 12.8, with absolute magnitude of 3.8.
  • It is 1.1 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5693 with its spectral types of G3
  • In this planetary system, the extrasolar planet Kepler-648 b orbits around the star Kepler-648 every 17.4 days with its orbital distance of 0.13 AU ( 19997697.3 km)
  • (Projected orbit of Kepler-648 b around its host star Kepler-648)


  • The Star Kepler-648 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.667 AU ( 99784729.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.922 AU ( 137928573.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.405 AU ( 210172622.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.067 AU ( 309278220.7 km)
  • Radiation at Planetary Boundary of Kepler-648 b : 65059.03 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-648)



  • Kopparapu Recent Venus for Star Kepler-648 distance : 0.695 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-648 distance : 0.880 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-648 distance : 0.850 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-648 distance : 0.932 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-648 distance : 1.557 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-648 distance : 1.643 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-648)



  • Original Kopparapu Recent Venus for Star Kepler-648 distance : 0.695 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-648 distance : 0.904 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-648 distance : 0.919 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-648 distance : 1.585 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-648 distance : 1.648 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-648)



    (Position in Stellar Map of star Kepler-648 and its Exoplanet Kepler-648 b)



    (Zoomed position in Stellar Map of star Kepler-648 and its Exoplanet Kepler-648 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-648*)
    *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