Imaginary Picture of EPIC 249889081 b

Display orbital revolution of EPIC 249889081 b around the hoststar EPIC 249889081
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Exoplanet Name : EPIC 249889081 b
Alternate Name :
Radius (Rjup / Re): 0.1870 (Rjup) 2.0961 (Rearth)
Mass (Mjup / Me): 0.0214 (Mjup) 6.8039 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1768 (AU) 0.1768 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0749
Orbital Period(Observed/Estimated) 27.36 (Days Obs.) 33.94 (Days Est.)
Surface Gravity (G Earth) 1.5486
Star Radiation at Atmospheric Boundary: 3582.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 345.3 (K)
Blackbody T 0.3(K) 324.3 (K)
Blackbody T 0.7(K) 262.4 (K)
Tidally Locked Blackbody T 0.1(K) 410.6 (K)
Tidally Locked Blackbody T 0.3(K) 385.6 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Theoretical
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : EPIC 249889081
Alternate Name :
Star Distance(LY) : 248.9
Stellar Radius(Rsun) : 0.6 (Rsun Measured)
Stellar Mass(Msun) : 0.6 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3926 (K)
Spectral type : K7
UV portion[%]: 0.6
Visible portion[%]: 22.4
IR portion[%]: 77.0
Metalicity : 0.0
Absolute Magnitude: 8.4
Apparent Magnitude: 12.8
Right Ascension(RA) 233.3708
Declination (DEC) -16.7733
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK
Open Exoplanet Database Link
EPIC 249889081 b
EPIC 249889081 b

  • EPIC 249889081 b is an exoplanet orbiting the star EPIC 249889081, located about 248.9 light-years (76.3 pc) away from Solar System. Its discovery was publicly announced on 2018.
  • The host star EPIC 249889081 has apparent magnitude of 12.8, with absolute magnitude of 8.4.
  • It is 0.6 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 3926 with its spectral types of K7
  • In this planetary system, the extrasolar planet EPIC 249889081 b orbits around the star EPIC 249889081 every 27.4 days with its orbital distance of 0.18 AU ( 26448903.5 km)
  • (Projected orbit of EPIC 249889081 b around its host star EPIC 249889081)


  • The Star EPIC 249889081 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.207 AU ( 30970655.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.286 AU ( 42809539.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.436 AU ( 65232263.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.642 AU ( 95992133.7 km)
  • Radiation at Planetary Boundary of EPIC 249889081 b : 3582.82 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star EPIC 249889081)



  • Kopparapu Recent Venus for Star EPIC 249889081 distance : 0.232 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star EPIC 249889081 distance : 0.294 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star EPIC 249889081 distance : 0.284 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star EPIC 249889081 distance : 0.312 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star EPIC 249889081 distance : 0.560 AU
  • Kopparapu Outer Boundary for Early Mars for Star EPIC 249889081 distance : 0.591 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star EPIC 249889081)



  • Original Kopparapu Recent Venus for Star EPIC 249889081 distance : 0.230 AU
  • Original Kopparapu Runaway Greenhouse for Star EPIC 249889081 distance : 0.304 AU
  • Original Kopparapu Moist Greenhouse for Star EPIC 249889081 distance : 0.304 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star EPIC 249889081 distance : 0.569 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star EPIC 249889081 distance : 0.592 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star EPIC 249889081)



    (Position in Stellar Map of star EPIC 249889081 and its Exoplanet EPIC 249889081 b)



    (Zoomed position in Stellar Map of star EPIC 249889081 and its Exoplanet EPIC 249889081 b (zoom level 3))