Imaginary Picture of Kepler-1181 b

Display orbital revolution of Kepler-1181 b around the hoststar Kepler-1181
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Exoplanet Name : Kepler-1181 b
Alternate Name : "2MASS J19185935+3931244 b, K02303.01, KIC 4458082 b, KOI-2303 b, KOI-2303.01, WISE J191859.34+393124.4 b"
Status : Confirmed
Radius (Rjup / Re): 0.1400 (Rjup) 1.5693 (Rearth)
Mass (Mjup / Me): 0.0126 (Mjup) 4.0115 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0594 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0134
Orbital Period(Observed/Estimated) 4.89 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.6290
Star Radiation at Atmospheric Boundary: 1238408.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1488.9 (K)
Blackbody T 0.3(K) 1398.2 (K)
Blackbody T 0.7(K) 1131.3 (K)
Tidally Locked Blackbody T 0.1(K) 1770.6 (K)
Tidally Locked Blackbody T 0.3(K) 1662.8 (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-1181
Alternate Name : "2MASS J19185935+3931244, KIC 4458082, KOI-2303, WISE J191859.34+393124.4"
Star Distance(LY) : 3058.8
Stellar Radius(Rsun) : 1.3 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 3.2 (GY)
Temperature : 6689 (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: 12.6
Right Ascension(RA) 289.7473
Declination (DEC) 39.5235
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-1181+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1181%20b/
Kepler-1181 b
Kepler-1181 b

  • Kepler-1181 b is an exoplanet orbiting the star Kepler-1181, located about 3058.8 light-years (937.8 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1181 has apparent magnitude of 12.6, with absolute magnitude of 2.7.
  • It is 1.2 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 6689 with its spectral types of F8
  • In this planetary system, the extrasolar planet Kepler-1181 b orbits around the star Kepler-1181 every 4.9 days with its orbital distance of 0.06 AU ( 8892002.2 km)
  • (Projected orbit of Kepler-1181 b around its host star Kepler-1181)


  • The Star Kepler-1181 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.294 AU ( 193580572.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.789 AU ( 267578939.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.726 AU ( 407731089.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.011 AU ( 599994159.6 km)
  • Radiation at Planetary Boundary of Kepler-1181 b : 1238408.23 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1181)



  • Kopparapu Recent Venus for Star Kepler-1181 distance : 1.270 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1181 distance : 1.609 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1181 distance : 1.554 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1181 distance : 1.702 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1181 distance : 2.792 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1181 distance : 2.944 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1181)



  • Original Kopparapu Recent Venus for Star Kepler-1181 distance : 1.298 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1181 distance : 1.648 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1181 distance : 1.717 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1181 distance : 2.843 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1181 distance : 2.956 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1181)



    (Position in Stellar Map of star Kepler-1181 and its Exoplanet Kepler-1181 b)



    (Zoomed position in Stellar Map of star Kepler-1181 and its Exoplanet Kepler-1181 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1181*)
    *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