Imaginary Picture of Kepler-273 c

Display orbital revolution of Kepler-273 c around the hoststar Kepler-273
/
Exoplanet Name : Kepler-273 c
Alternate Name : "2MASS J19251253+4741519 c, K01163.02, KIC 10468940 c, KOI-1163 c, KOI-1163.02, WISE J192512.51+474151.7 c"
Status : Confirmed
Radius (Rjup / Re): 0.1770 (Rjup) 1.9840 (Rearth)
Mass (Mjup / Me): 0.0157 (Mjup) 4.9891 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0730 (AU) 0.0730 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0219
Orbital Period(Observed/Estimated) 8.01 (Days Obs.) 7.49 (Days Est.)
Surface Gravity (G Earth) 1.2675
Star Radiation at Atmospheric Boundary: 107469.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 808.1 (K)
Blackbody T 0.3(K) 758.9 (K)
Blackbody T 0.7(K) 614.0 (K)
Tidally Locked Blackbody T 0.1(K) 961.0 (K)
Tidally Locked Blackbody T 0.3(K) 902.5 (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-273
Alternate Name : "2MASS J19251253+4741519, KIC 10468940, KOI-1163, WISE J192512.51+474151.7"
Star Distance(LY) : 2328.2
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5217 (K)
Spectral type : G5
UV portion[%]: 7.4
Visible portion[%]: 44.0
IR portion[%]: 48.6
Metalicity : -0.5
Absolute Magnitude: 4.4
Apparent Magnitude: 13.7
Right Ascension(RA) 291.3022
Declination (DEC) 47.6978
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-273+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-273%20c/
Kepler-273 c
Kepler-273 c

  • Kepler-273 c is an exoplanet orbiting the star Kepler-273, located about 2328.2 light-years (713.8 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-273 has apparent magnitude of 13.7, with absolute magnitude of 4.4.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5217 with its spectral types of G5
  • In this planetary system, the extrasolar planet Kepler-273 c orbits around the star Kepler-273 every 8.0 days with its orbital distance of 0.07 AU ( 10920644.6 km)
  • (Projected orbit of Kepler-273 c around its host star Kepler-273)


  • The Star Kepler-273 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.468 AU ( 70035831.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.647 AU ( 96807821.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.986 AU ( 147513696.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.451 AU ( 217072866.5 km)
  • Radiation at Planetary Boundary of Kepler-273 c : 107469.06 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-273)



  • Kopparapu Recent Venus for Star Kepler-273 distance : 0.501 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-273 distance : 0.634 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-273 distance : 0.613 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-273 distance : 0.672 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-273 distance : 1.140 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-273 distance : 1.203 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-273)



  • Original Kopparapu Recent Venus for Star Kepler-273 distance : 0.497 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-273 distance : 0.653 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-273 distance : 0.658 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-273 distance : 1.160 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-273 distance : 1.206 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-273)



    (Position in Stellar Map of star Kepler-273 and its Exoplanet Kepler-273 c)



    (Zoomed position in Stellar Map of star Kepler-273 and its Exoplanet Kepler-273 c (zoom level 3))

    (Synthetic Spectrum of star Kepler-273*)
    *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