Imaginary Picture of Kepler-1531 b

Display orbital revolution of Kepler-1531 b around the hoststar Kepler-1531
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Exoplanet Name : Kepler-1531 b
Alternate Name : "2MASS J19003517+3922148 b, K03928.01, KIC 4242692 b, KOI-3928 b, KOI-3928.01, WISE J190035.12+392214.8 b"
Status : Confirmed
Radius (Rjup / Re): 0.0990 (Rjup) 1.1097 (Rearth)
Mass (Mjup / Me): 0.0045 (Mjup) 1.4219 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0224 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0031
Orbital Period(Observed/Estimated) 1.14 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.1547
Star Radiation at Atmospheric Boundary: 12935765.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 2676.6 (K)
Blackbody T 0.3(K) 2513.6 (K)
Blackbody T 0.7(K) 2033.8 (K)
Tidally Locked Blackbody T 0.1(K) 3183.1 (K)
Tidally Locked Blackbody T 0.3(K) 2989.2 (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-1531
Alternate Name : "2MASS J19003517+3922148, KIC 4242692, KOI-3928, WISE J190035.12+392214.8"
Star Distance(LY) : 2573.0
Stellar Radius(Rsun) : 1.7 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 2.8 (GY)
Temperature : 6520 (K)
Spectral type : F8
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : -0.0
Absolute Magnitude: 2.7
Apparent Magnitude: 12.1
Right Ascension(RA) 285.1466
Declination (DEC) 39.3708
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. Batalha2"
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-1531+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1531%20b/
Kepler-1531 b
Kepler-1531 b

  • Kepler-1531 b is an exoplanet orbiting the star Kepler-1531, located about 2573.0 light-years (788.9 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1531 has apparent magnitude of 12.1, with absolute magnitude of 2.7.
  • It is 1.2 times more massive and 1.7 times bigger compared with our Sun. The surface temperature is 6520 with its spectral types of F8
  • In this planetary system, the extrasolar planet Kepler-1531 b orbits around the star Kepler-1531 every 1.1 days with its orbital distance of 0.02 AU ( 3354164.2 km)
  • (Projected orbit of Kepler-1531 b around its host star Kepler-1531)


  • The Star Kepler-1531 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.578 AU ( 235999274.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.181 AU ( 326212670.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.323 AU ( 497075919.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.890 AU ( 731468990.7 km)
  • Radiation at Planetary Boundary of Kepler-1531 b : 12935764.97 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1531)



  • Kopparapu Recent Venus for Star Kepler-1531 distance : 1.564 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1531 distance : 1.980 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1531 distance : 1.912 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1531 distance : 2.095 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1531 distance : 3.444 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1531 distance : 3.632 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1531)



  • Original Kopparapu Recent Venus for Star Kepler-1531 distance : 1.591 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1531 distance : 2.030 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1531 distance : 2.105 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1531 distance : 3.506 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1531 distance : 3.646 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1531)



    (Position in Stellar Map of star Kepler-1531 and its Exoplanet Kepler-1531 b)



    (Zoomed position in Stellar Map of star Kepler-1531 and its Exoplanet Kepler-1531 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1531*)
    *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