Imaginary Picture of Kepler-129 b

Display orbital revolution of Kepler-129 b around the hoststar Kepler-129
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Exoplanet Name : Kepler-129 b
Alternate Name : "2MASS J19011470+4750549 b, K00275.01, KIC 10586004 b, KOI-275 b, KOI-275.01, WISE J190114.69+475054.6 b"
Radius (Rjup / Re): 0.2110 (Rjup) 2.3651 (Rearth)
Mass (Mjup / Me): 0.0185 (Mjup) 5.8748 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1310 (AU) 0.1310 (AU Est.)
Eccentricity : 0.0100
Orbital Period(Yrs) 0.0432
Orbital Period(Observed/Estimated) 15.79 (Days Obs.) 15.94 (Days Est.)
Surface Gravity (G Earth) 1.0503
Star Radiation at Atmospheric Boundary: 222184.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 969.0 (K)
Blackbody T 0.3(K) 910.0 (K)
Blackbody T 0.7(K) 736.3 (K)
Tidally Locked Blackbody T 0.1(K) 1152.3 (K)
Tidally Locked Blackbody T 0.3(K) 1082.2 (K)
Size Class: sub-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-129
Alternate Name : "2MASS J19011470+4750549, KIC 10586004, KOI-275, WISE J190114.69+475054.6"
Star Distance(LY) : 1226.2
Stellar Radius(Rsun) : 1.7 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5808 (K)
Spectral type : G3
UV portion[%]: 7.8
Visible portion[%]: 44.7
IR portion[%]: 47.5
Metalicity : 0.0
Absolute Magnitude: 2.7
Apparent Magnitude: 10.6
Right Ascension(RA) 285.3113
Declination (DEC) 47.8486
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Rowe, Jason F.; Bryson, Stephen T.; Marcy, Geoffrey W.; Lissauer, Jack J.; Jontof-Hutter, Daniel; Mullally, Fergal; Gilliland, Ronald L.; Issacson, Howard; Ford, Eric; Howell, Steve B.; Borucki, William J.; Haas, Michael; Huber, Daniel; Steffen, Jason H.; Thompson, Susan E.; Quintana, Elisa; Barclay, Thomas; Still, Martin; Fortney, Jonathan; Gautier, T. N., III; Hunter, Roger; Caldwell, Douglas A.; Ciardi, David R.; Devore, Edna; Cochran, William; Jenkins, Jon; Agol, Eric; Carter, Joshua A.; Geary, John"
Discovery Paper - Title Validation of Kepler's Multiple Planet Candidates. III. Light Curve Analysis and Announcement of Hundreds of New Multi-planet Systems
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-129+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-129%20b/
Kepler-129 b
Kepler-129 b

  • Kepler-129 b is an exoplanet orbiting the star Kepler-129, located about 1226.2 light-years (375.9 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-129 has apparent magnitude of 10.6, 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 5808 with its spectral types of G3
  • In this planetary system, the extrasolar planet Kepler-129 b orbits around the star Kepler-129 every 15.8 days with its orbital distance of 0.13 AU ( 19597321.1 km)
  • (Projected orbit of Kepler-129 b around its host star Kepler-129)


  • The Star Kepler-129 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.208 AU ( 180710830.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.670 AU ( 249789592.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.544 AU ( 380624061.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.744 AU ( 560104980.2 km)
  • Radiation at Planetary Boundary of Kepler-129 b : 222184.81 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-129)



  • Kopparapu Recent Venus for Star Kepler-129 distance : 1.250 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-129 distance : 1.583 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-129 distance : 1.529 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-129 distance : 1.676 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-129 distance : 2.793 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-129 distance : 2.945 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-129)



  • Original Kopparapu Recent Venus for Star Kepler-129 distance : 1.252 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-129 distance : 1.626 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-129 distance : 1.657 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-129 distance : 2.842 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-129 distance : 2.955 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-129)



    (Position in Stellar Map of star Kepler-129 and its Exoplanet Kepler-129 b)



    (Zoomed position in Stellar Map of star Kepler-129 and its Exoplanet Kepler-129 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-129*)
    *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