Imaginary Picture of WISE 1217+16 A b

Display orbital revolution of WISE 1217+16 A b around the hoststar WISE 1217+16 A
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Exoplanet Name : WISE 1217+16 A b
Alternate Name : "WISE J1217+1626B, WISEPC J121756.91+162640.2B"
Status : Confirmed
Radius (Rjup / Re): 0.9600 (Rjup) 10.7606 (Rearth)
Mass (Mjup / Me): 22.0000 (Mjup) 6994.6360 (Mearth)
Semi Major Axis / Orbital Distance Calculated 7.6000 (AU) 7.6000 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 129.7706
Orbital Period(Observed/Estimated) 47400.00 (Days Obs.) 44182.47 (Days Est.)
Surface Gravity (G Earth) 60.4072
Star Radiation at Atmospheric Boundary: 0.2 (W/m2)
Measured Temperature (K) 450.0 (K)
Blackbody T 0.1(K) 28.3 (K)
Blackbody T 0.3(K) 26.5 (K)
Blackbody T 0.7(K) 21.5 (K)
Tidally Locked Blackbody T 0.1(K) 33.6 (K)
Tidally Locked Blackbody T 0.3(K) 31.6 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Imaging
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : WISE 1217+16 A
Alternate Name :
Star Distance(LY) : 32.6
Stellar Radius(Rsun) : 0.1 (Rsun Measured)
Stellar Mass(Msun) : 0.0 (Msun Measured) 0.0 (Msun Estimated)
Star Age : 6.0 (GY)
Temperature : 5500 (K)
Spectral type : T8.5
UV portion[%]: 6.9
Visible portion[%]: 43.2
IR portion[%]: 49.9
Metalicity : 0.0
Absolute Magnitude: 19.0
Apparent Magnitude: 19.0
Right Ascension(RA) 184.4875
Declination (DEC) 16.4444
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
WISE 1217+16 A b
WISE 1217+16 A b

  • WISE 1217+16 A b is an exoplanet orbiting the star WISE 1217+16 A, located about 32.6 light-years (10.0 pc) away from Solar System. Its discovery was publicly announced on 2012.
  • The host star WISE 1217+16 A has apparent magnitude of 19.0, with absolute magnitude of 19.0.
  • It is 0.0 times more massive and 0.1 times bigger compared with our Sun. The surface temperature is 5500 with its spectral types of T8.5
  • In this planetary system, the extrasolar planet WISE 1217+16 A b orbits around the star WISE 1217+16 A every 47400.0 days with its orbital distance of 7.60 AU ( 1136943817.3 km)
  • (Projected orbit of WISE 1217+16 A b around its host star WISE 1217+16 A)


  • The Star WISE 1217+16 A 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.060 AU ( 8921233.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.082 AU ( 12331475.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.126 AU ( 18790439.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.185 AU ( 27650955.1 km)
  • Radiation at Planetary Boundary of WISE 1217+16 A b : 0.16 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star WISE 1217+16 A)



  • Kopparapu Recent Venus for Star WISE 1217+16 A distance : 0.063 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star WISE 1217+16 A distance : 0.080 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star WISE 1217+16 A distance : 0.077 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star WISE 1217+16 A distance : 0.084 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star WISE 1217+16 A distance : 0.142 AU
  • Kopparapu Outer Boundary for Early Mars for Star WISE 1217+16 A distance : 0.149 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star WISE 1217+16 A)



  • Original Kopparapu Recent Venus for Star WISE 1217+16 A distance : 0.063 AU
  • Original Kopparapu Runaway Greenhouse for Star WISE 1217+16 A distance : 0.082 AU
  • Original Kopparapu Moist Greenhouse for Star WISE 1217+16 A distance : 0.083 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star WISE 1217+16 A distance : 0.144 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star WISE 1217+16 A distance : 0.150 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star WISE 1217+16 A)



    (Position in Stellar Map of star WISE 1217+16 A and its Exoplanet WISE 1217+16 A b)



    (Zoomed position in Stellar Map of star WISE 1217+16 A and its Exoplanet WISE 1217+16 A b (zoom level 3))

    (Synthetic Spectrum of star WISE 1217+16 A*)
    *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