Imaginary Picture of Kepler-275 d

Display orbital revolution of Kepler-275 d around the hoststar Kepler-275
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Exoplanet Name : Kepler-275 d
Alternate Name : "2MASS J19295513+3830537 d, K01198.03, KIC 3447722 d, KOI-1198 d, KOI-1198.03, WISE J192955.13+383053.5 d"
Status : Confirmed
Radius (Rjup / Re): 0.2970 (Rjup) 3.3291 (Rearth)
Mass (Mjup / Me): 0.0254 (Mjup) 8.0737 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.2240 (AU) 0.2240 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0977
Orbital Period(Observed/Estimated) 35.68 (Days Obs.) 34.77 (Days Est.)
Surface Gravity (G Earth) 0.7285
Star Radiation at Atmospheric Boundary: 76777.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 742.9 (K)
Blackbody T 0.3(K) 697.7 (K)
Blackbody T 0.7(K) 564.5 (K)
Tidally Locked Blackbody T 0.1(K) 883.5 (K)
Tidally Locked Blackbody T 0.3(K) 829.7 (K)
Size Class: 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-275
Alternate Name : "2MASS J19295513+3830537, KIC 3447722, KOI-1198, WISE J192955.13+383053.5"
Star Distance(LY) : 6667.5
Stellar Radius(Rsun) : 1.5 (Rsun Measured)
Stellar Mass(Msun) : 1.2 (Msun Measured) 1.2 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6179 (K)
Spectral type : G0
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : 0.2
Absolute Magnitude: 2.7
Apparent Magnitude: 14.3
Right Ascension(RA) 292.4797
Declination (DEC) 38.5149
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-275+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-275%20d/
Kepler-275 d
Kepler-275 d
  • Kepler-275 d is an exoplanet orbiting the star Kepler-275, located about 6667.5 light-years (2044.3 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-275 has apparent magnitude of 14.3, with absolute magnitude of 2.7.
  • It is 1.2 times more massive and 1.5 times bigger compared with our Sun. The surface temperature is 6179 with its spectral types of G0
  • In this planetary system, the extrasolar planet Kepler-275 d orbits around the star Kepler-275 every 35.7 days with its orbital distance of 0.22 AU ( 33509923.0 km)
    • (Projected orbit of Kepler-275 d around its host star Kepler-275)


  • The Star Kepler-275 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.214 AU ( 181643791.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.678 AU ( 251079189.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.557 AU ( 382589120.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.763 AU ( 562996650.8 km)
  • Radiation at Planetary Boundary of Kepler-275 d : 76777.45 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-275)



  • Kopparapu Recent Venus for Star Kepler-275 distance : 1.228 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-275 distance : 1.555 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-275 distance : 1.502 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-275 distance : 1.646 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-275 distance : 2.721 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-275 distance : 2.870 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-275)



  • Original Kopparapu Recent Venus for Star Kepler-275 distance : 1.240 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-275 distance : 1.596 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-275 distance : 1.641 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-275 distance : 2.770 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-275 distance : 2.880 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-275)



    (Position in Stellar Map of star Kepler-275 and its Exoplanet Kepler-275 d)



    (Zoomed position in Stellar Map of star Kepler-275 and its Exoplanet Kepler-275 d (zoom level 3))

    (Synthetic Spectrum of star Kepler-275*)
    *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