Imaginary Picture of Kepler-25 b

Display orbital revolution of Kepler-25 b around the hoststar Kepler-25
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Exoplanet Name : Kepler-25 b
Alternate Name : "2MASS J19063321+3929164 b, GSC 03124-01264 b, K00244.02, KIC 4349452 b, KOI-244 b, KOI-244.02, Kepler-25 A b, TYC 3124-
Status : Confirmed
Radius (Rjup / Re): 0.2450 (Rjup) 2.7462 (Rearth)
Mass (Mjup / Me): 0.0275 (Mjup) 8.7433 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0680 (AU) 0.0680 (AU Est.)
Eccentricity : 0.0029
Orbital Period(Yrs) 0.0171
Orbital Period(Observed/Estimated) 6.24 (Days Obs.) 5.94 (Days Est.)
Surface Gravity (G Earth) 1.1593
Star Radiation at Atmospheric Boundary: 751948.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1314.3 (K)
Blackbody T 0.3(K) 1234.3 (K)
Blackbody T 0.7(K) 998.6 (K)
Tidally Locked Blackbody T 0.1(K) 1563.0 (K)
Tidally Locked Blackbody T 0.3(K) 1467.8 (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-25
Alternate Name : "2MASS J19063321+3929164, GSC 03124-01264, KIC 4349452, KOI-244, Kepler-25 A, TYC 3124-01264-1, WISE J190633.20+392916.5
Star Distance(LY) : 829.9
Stellar Radius(Rsun) : 1.3 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 11.0 (GY)
Temperature : 6285 (K)
Spectral type : F8
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : -0.0
Absolute Magnitude: 4.0
Apparent Magnitude: 11.0
Right Ascension(RA) 286.6384
Declination (DEC) 39.4879
Hubble Space Telescope Guide Star Catalog (GSC) ID 03124-01264
Discovered by
Discovery Paper - Authors "Jason H. Ste_en1, Daniel C. Fabrycky2,3, Eric B. Ford4, Joshua A. Carter5,3, Jean-Michel D¥¹¡£¥¹¥åesert5, Francois Fressin5, Matthew J. Holman5, Jack J. Lissauer6, Althea V. Moorhead1, Jason F. Rowe7,6, Darin Ragozzine5, William F. Welsh8, Natalie M. Batalha9, William J. Borucki6, Lars A. Buchhave18, Steve Bryson6, Douglas A. Caldwell7,6, David Charbonneau5, David R. Ciardi8, William D. Cochran20, Michael Endl20, Mark E. Everett15, Thomas N. Gautier III11, Ron L. Gilliland21, Forrest R. Girouard6,22, Jon M. Jenkins7,6, Elliott Horch16, Steve B. Howell6, Howard Isaacson 13, Todd C. Klaus6,22, David G. Koch6, David W. Latham5, Jie Li7,6, Philip Lucas12, Phillip J. MacQueen20, Geo_rey W. Marcy13, Sean McCauli_10, Christopher K. Middour6,22, Robert L. Morris7,6, Fergal R. Mullally7,6, Samuel N. Quinn5, Elisa V. Quintana7,6, Avi Shporer17,18, Martin Still17,6, Peter Tenenbaum7,6, Susan E. Thompson7,6, Joseph D. Twicken7,6, Je_ery Van Cleve7,6"
Discovery Paper - Title Transit Timing Observations from Kepler: III. Con_rmation of 4 Multiple Planet Systems by a Fourier-Domain Study of Anti-correlated Transit Timing Variations
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-25+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-25%20b/
Kepler-25 b
Kepler-25 b
  • Kepler-25 b is an exoplanet orbiting the star Kepler-25, located about 829.9 light-years (254.5 pc) away from Solar System. Its discovery was publicly announced on 2011.
  • The host star Kepler-25 has apparent magnitude of 11.0, with absolute magnitude of 4.0.
  • It is 1.2 times more massive and 1.3 times bigger compared with our Sun. The surface temperature is 6285 with its spectral types of F8
  • In this planetary system, the extrasolar planet Kepler-25 b orbits around the star Kepler-25 every 6.2 days with its orbital distance of 0.07 AU ( 10172655.2 km)
    • (Projected orbit of Kepler-25 b around its host star Kepler-25)


  • The Star Kepler-25 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.154 AU ( 172567325.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.594 AU ( 238533141.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.430 AU ( 363471720.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.575 AU ( 534864558.7 km)
  • Radiation at Planetary Boundary of Kepler-25 b : 751948.15 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-25)



  • Kopparapu Recent Venus for Star Kepler-25 distance : 1.159 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-25 distance : 1.468 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-25 distance : 1.418 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-25 distance : 1.554 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-25 distance : 2.563 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-25 distance : 2.704 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-25)



  • Original Kopparapu Recent Venus for Star Kepler-25 distance : 1.173 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-25 distance : 1.506 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-25 distance : 1.553 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-25 distance : 2.610 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-25 distance : 2.714 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-25)



    (Position in Stellar Map of star Kepler-25 and its Exoplanet Kepler-25 b)



    (Zoomed position in Stellar Map of star Kepler-25 and its Exoplanet Kepler-25 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-25*)
    *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