Imaginary Picture of Kepler-454 b

Display orbital revolution of Kepler-454 b around the hoststar Kepler-454
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Exoplanet Name : Kepler-454 b
Alternate Name : "2MASS J19095484+3813438 b, K00273.01, KIC 3102384 b, KOI-273 b, KOI-273.01, Kepler-454 A b, WISE J190954.86+381344.5 b"
Status : Confirmed
Radius (Rjup / Re): 0.2100 (Rjup) 2.3539 (Rearth)
Mass (Mjup / Me): 0.0191 (Mjup) 6.0567 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0954 (AU) 0.0954 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0289
Orbital Period(Observed/Estimated) 10.57 (Days Obs.) 11.67 (Days Est.)
Surface Gravity (G Earth) 1.0931
Star Radiation at Atmospheric Boundary: 162149.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 895.6 (K)
Blackbody T 0.3(K) 841.1 (K)
Blackbody T 0.7(K) 680.5 (K)
Tidally Locked Blackbody T 0.1(K) 1065.1 (K)
Tidally Locked Blackbody T 0.3(K) 1000.2 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-454
Alternate Name : "2MASS J19095484+3813438, KIC 3102384, KOI-273, Kepler-454 A, WISE J190954.86+381344.5"
Star Distance(LY) : 731.3
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 5.2 (GY)
Temperature : 5678 (K)
Spectral type : G4
UV portion[%]: 7.5
Visible portion[%]: 44.3
IR portion[%]: 48.2
Metalicity : 0.3
Absolute Magnitude: 4.8
Apparent Magnitude: 11.6
Right Ascension(RA) 287.4785
Declination (DEC) 38.2289
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Sara Gettel, David Charbonneau, Courtney D. Dressing, Lars A. Buchhave, Xavier Dumusque, Andrew Vanderburg, Aldo S. Bonomo, Luca Malavolta, Francesco Pepe, Andrew Collier Cameron, David W. Latham, Stephane Udry, Geoffrey W. Marcy, Howard Isaacson, Andrew W. Howard, Guy R. Davies, Victor Silva Aguirre, Hans Kjeldsen, Timothy R. Bedding, Eric Lopez, Laura Affer, Rosario Cosentino, Pedro Figueira, Aldo F. M. Fiorenzano, Avet Harutyunyan, John Asher Johnson, Mercedes Lopez-Morales, Christophe Lovis, Michel Mayor, Giusi Micela, Emilio Molinari, Fatemeh Motalebi, David F. Phillips, Giampaolo Piotto, Didier Queloz, Ken Rice, Dimitar Sasselov, Damien Segransan, Alessandro Sozzetti, Chris Watson, Sarbani Basu, Tiago L. Campante, Jorgen Christensen-Dalsgaard, Steven D. Kawaler, Travis S. Metcalfe, et al. (5 additional authors not shown) "
Discovery Paper - Title "The Kepler-454 System: A Small, Not-rocky Inner Planet, a Jovian World, and a Distant Companion"
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-454+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-454%20b/
Kepler-454 b
Kepler-454 b
  • Kepler-454 b is an exoplanet orbiting the star Kepler-454, located about 731.3 light-years (224.2 pc) away from Solar System. Its discovery was publicly announced on 2015.
  • The host star Kepler-454 has apparent magnitude of 11.6, with absolute magnitude of 4.8.
  • It is 0.8 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 5678 with its spectral types of G4
  • In this planetary system, the extrasolar planet Kepler-454 b orbits around the star Kepler-454 every 10.6 days with its orbital distance of 0.10 AU ( 14271636.9 km)
    • (Projected orbit of Kepler-454 b around its host star Kepler-454)


  • The Star Kepler-454 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.752 AU ( 112424550.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.039 AU ( 155400109.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.583 AU ( 236795376.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.329 AU ( 348454769.2 km)
  • Radiation at Planetary Boundary of Kepler-454 b : 162148.96 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-454)



  • Kopparapu Recent Venus for Star Kepler-454 distance : 0.784 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-454 distance : 0.992 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-454 distance : 0.958 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-454 distance : 1.051 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-454 distance : 1.757 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-454 distance : 1.853 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-454)



  • Original Kopparapu Recent Venus for Star Kepler-454 distance : 0.783 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-454 distance : 1.020 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-454 distance : 1.036 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-454 distance : 1.788 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-454 distance : 1.859 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-454)



    (Position in Stellar Map of star Kepler-454 and its Exoplanet Kepler-454 b)



    (Zoomed position in Stellar Map of star Kepler-454 and its Exoplanet Kepler-454 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-454*)
    *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