Imaginary Picture of 2M0805+48 b

Display orbital revolution of 2M0805+48 b around the hoststar 2M0805+48
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Exoplanet Name : 2M0805+48 b
Alternate Name :
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 66.2800 (Mjup) 21072.9306 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.8200 (AU) 0.8200 (AU Est.)
Eccentricity : 0.4230
Orbital Period(Yrs) 2.0271
Orbital Period(Observed/Estimated) 740.43 (Days Obs.) 0.00 (Days Est.)
Star Radiation at Atmospheric Boundary: 2032.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 299.7 (K)
Blackbody T 0.3(K) 281.4 (K)
Blackbody T 0.7(K) 227.7 (K)
Tidally Locked Blackbody T 0.1(K) 356.4 (K)
Tidally Locked Blackbody T 0.3(K) 334.7 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Astrometry
Mass Detection : Astrometry
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Habitable
Habitability by Kopparapu: Not habitable
Star Name : 2M0805+48
Alternate Name :
Star Distance(LY) : 69.7
Stellar Radius(Rsun) : 1.1 (Rsun Estimated)
Stellar Mass(Msun) : 0.0 (Msun Measured) 0.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5500 (K)
Spectral type : L4
Metalicity : 0.0
Absolute Magnitude: 20.3
Apparent Magnitude: 22.0
Right Ascension(RA) 121.3833
Declination (DEC) 40.2092
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
2M0805+48 b
2M0805+48 b

  • 2M0805+48 b is an exoplanet orbiting the star 2M0805+48, located about 69.7 light-years (21.4 pc) away from Solar System. Its discovery was publicly announced on 2020.
  • The host star 2M0805+48 has apparent magnitude of 22.0, with absolute magnitude of 20.3.
  • In this planetary system, the extrasolar planet 2M0805+48 b orbits around the star 2M0805+48 every 740.4 days with its orbital distance of 0.82 AU ( 122670254.0 km)
  • (Projected orbit of 2M0805+48 b around its host star 2M0805+48)


  • The Star 2M0805+48 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.723 AU ( 108196493.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.000 AU ( 149555829.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.523 AU ( 227889987.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.242 AU ( 335350100.1 km)
  • Radiation at Planetary Boundary of 2M0805+48 b : 2032.77 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 2M0805+48)



  • Kopparapu Recent Venus for Star 2M0805+48 distance : 0.762 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star 2M0805+48 distance : 0.965 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 2M0805+48 distance : 0.932 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star 2M0805+48 distance : 1.022 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star 2M0805+48 distance : 1.718 AU
  • Kopparapu Outer Boundary for Early Mars for Star 2M0805+48 distance : 1.812 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 2M0805+48)



  • Original Kopparapu Recent Venus for Star 2M0805+48 distance : 0.759 AU
  • Original Kopparapu Runaway Greenhouse for Star 2M0805+48 distance : 0.992 AU
  • Original Kopparapu Moist Greenhouse for Star 2M0805+48 distance : 1.004 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 2M0805+48 distance : 1.747 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 2M0805+48 distance : 1.817 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star 2M0805+48)



    (Position in Stellar Map of star 2M0805+48 and its Exoplanet 2M0805+48 b)



    (Zoomed position in Stellar Map of star 2M0805+48 and its Exoplanet 2M0805+48 b (zoom level 3))