Imaginary Picture of K2-283 b

Display orbital revolution of K2-283 b around the hoststar K2-283
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Exoplanet Name : K2-283 b
Alternate Name : "2MASS J00524666+0941345 b, EPIC 220629489 b, EPIC 220629489.01, WISE J005246.64+094134.4 b"
Status : Confirmed
Radius (Rjup / Re): 0.3140 (Rjup) 3.5196 (Rearth)
Mass (Mjup / Me): 0.0267 (Mjup) 8.5027 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0291 (AU) 0.0291 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0053
Orbital Period(Observed/Estimated) 1.92 (Days Obs.) 1.92 (Days Est.)
Surface Gravity (G Earth) 0.6864
Star Radiation at Atmospheric Boundary: 638334.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1261.6 (K)
Blackbody T 0.3(K) 1184.7 (K)
Blackbody T 0.7(K) 958.6 (K)
Tidally Locked Blackbody T 0.1(K) 1500.2 (K)
Tidally Locked Blackbody T 0.3(K) 1408.9 (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 : K2-283
Alternate Name : "2MASS J00524666+0941345, EPIC 220629489, WISE J005246.64+094134.4"
Star Distance(LY) : 1332.3
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5060 (K)
Spectral type : K1
UV portion[%]: 3.6
Visible portion[%]: 37.8
IR portion[%]: 58.5
Metalicity : 0.3
Absolute Magnitude: 4.5
Apparent Magnitude: 12.6
Right Ascension(RA) 13.1944
Declination (DEC) 9.6929
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=K2-283+&submit=SIMBAD+search
Open Exoplanet Database Link
K2-283 b
K2-283 b

  • K2-283 b is an exoplanet orbiting the star K2-283, located about 1332.3 light-years (408.5 pc) away from Solar System. Its discovery was publicly announced on 2018.
  • The host star K2-283 has apparent magnitude of 12.6, with absolute magnitude of 4.5.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5060 with its spectral types of K1
  • In this planetary system, the extrasolar planet K2-283 b orbits around the star K2-283 every 1.9 days with its orbital distance of 0.03 AU ( 4353298.0 km)
  • (Projected orbit of K2-283 b around its host star K2-283)


  • The Star K2-283 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.455 AU ( 68041362.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.629 AU ( 94050943.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.958 AU ( 143312824.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.410 AU ( 210891099.7 km)
  • Radiation at Planetary Boundary of K2-283 b : 638334.92 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-283)



  • Kopparapu Recent Venus for Star K2-283 distance : 0.491 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-283 distance : 0.621 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-283 distance : 0.600 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-283 distance : 0.658 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-283 distance : 1.123 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-283 distance : 1.185 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-283)



  • Original Kopparapu Recent Venus for Star K2-283 distance : 0.486 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-283 distance : 0.640 AU
  • Original Kopparapu Moist Greenhouse for Star K2-283 distance : 0.643 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-283 distance : 1.142 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-283 distance : 1.188 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-283)



    (Position in Stellar Map of star K2-283 and its Exoplanet K2-283 b)



    (Zoomed position in Stellar Map of star K2-283 and its Exoplanet K2-283 b (zoom level 3))

    (Synthetic Spectrum of star K2-283*)
    *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