Imaginary Picture of Kepler-280 c

Display orbital revolution of Kepler-280 c around the hoststar Kepler-280
/
Exoplanet Name : Kepler-280 c
Alternate Name : "2MASS J19253372+4210501 c, K01240.02, KIC 6690082 c, KOI-1240 c, KOI-1240.02, WISE J192533.72+421049.8 c"
Radius (Rjup / Re): 0.1790 (Rjup) 2.0064 (Rearth)
Mass (Mjup / Me): 0.0159 (Mjup) 5.0415 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0560 (AU) 0.0560 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0132
Orbital Period(Observed/Estimated) 4.81 (Days Obs.) 5.07 (Days Est.)
Surface Gravity (G Earth) 1.2523
Star Radiation at Atmospheric Boundary: 359828.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1093.1 (K)
Blackbody T 0.3(K) 1026.6 (K)
Blackbody T 0.7(K) 830.6 (K)
Tidally Locked Blackbody T 0.1(K) 1299.9 (K)
Tidally Locked Blackbody T 0.3(K) 1220.8 (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-280
Alternate Name : "2MASS J19253372+4210501, KIC 6690082, KOI-1240, WISE J192533.72+421049.8"
Star Distance(LY) : 2544.2
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5541 (K)
Spectral type : G3
UV portion[%]: 7.7
Visible portion[%]: 44.6
IR portion[%]: 47.6
Metalicity : -0.2
Absolute Magnitude: 3.8
Apparent Magnitude: 13.3
Right Ascension(RA) 291.3905
Declination (DEC) 42.1806
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-280+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-280%20c/
Kepler-280 c
Kepler-280 c

  • Kepler-280 c is an exoplanet orbiting the star Kepler-280, located about 2544.2 light-years (780.1 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star Kepler-280 has apparent magnitude of 13.3, with absolute magnitude of 3.8.
  • It is 0.9 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5541 with its spectral types of G3
  • In this planetary system, the extrasolar planet Kepler-280 c orbits around the star Kepler-280 every 4.8 days with its orbital distance of 0.06 AU ( 8377480.8 km)
  • (Projected orbit of Kepler-280 c around its host star Kepler-280)


  • The Star Kepler-280 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.657 AU ( 98308565.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.908 AU ( 135888128.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.384 AU ( 207063435.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.037 AU ( 304702915.9 km)
  • Radiation at Planetary Boundary of Kepler-280 c : 359828.24 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-280)



  • Kopparapu Recent Venus for Star Kepler-280 distance : 0.691 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-280 distance : 0.875 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-280 distance : 0.845 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-280 distance : 0.926 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-280 distance : 1.555 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-280 distance : 1.640 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-280)



  • Original Kopparapu Recent Venus for Star Kepler-280 distance : 0.689 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-280 distance : 0.900 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-280 distance : 0.911 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-280 distance : 1.582 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-280 distance : 1.645 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-280)



    (Position in Stellar Map of star Kepler-280 and its Exoplanet Kepler-280 c)



    (Zoomed position in Stellar Map of star Kepler-280 and its Exoplanet Kepler-280 c (zoom level 3))

    (Synthetic Spectrum of star Kepler-280*)
    *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