Imaginary Picture of zet Del B

Display orbital revolution of zet Del B around the hoststar zet Del A
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Exoplanet Name : zet Del B
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 40.0000 (Mjup) 12717.5200 (Mearth)
Semi Major Axis / Orbital Distance Calculated 907.0000 (AU) 907.0000 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0000
Orbital Period(Observed/Estimated) 0.00 (Days Obs.) 6310026.03 (Days Est.)
Surface Gravity (G Earth) 122.8173
Star Radiation at Atmospheric Boundary: 0.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 17.1 (K)
Blackbody T 0.3(K) 16.1 (K)
Blackbody T 0.7(K) 13.0 (K)
Tidally Locked Blackbody T 0.1(K) 20.4 (K)
Tidally Locked Blackbody T 0.3(K) 19.1 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Imaging
Mass Detection : Spectrum
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : zet Del A
Alternate Name : "2MASS J20351852+1440272, HIP 101589, HD 196180"
Star Distance(LY) : 220.1
Stellar Radius(Rsun) : 1.7 (Rsun Estimated)
Stellar Mass(Msun) : 2.5 (Msun Measured) 0.0 (Msun Estimated)
Star Age : 0.5 (GY)
Temperature : 8336 (K)
Spectral type : A3V
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.1
Absolute Magnitude: 0.5
Apparent Magnitude: 4.6
Right Ascension(RA) 308.8272
Declination (DEC) 14.6742
Hubble Space Telescope Guide Star Catalog (GSC) ID 01100-01719
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=zet+Del+&submit=SIMBAD+search
Open Exoplanet Database Link
zet Del B
zet Del B

  • zet Del B is an exoplanet orbiting the star zet Del A, located about 220.1 light-years (67.5 pc) away from Solar System. Its discovery was publicly announced on 2014.
  • The host star zet Del A has apparent magnitude of 4.6, with absolute magnitude of 0.5.
  • It is 2.5 times more massive and 1.7 times bigger compared with our Sun. The surface temperature is 8336 with its spectral types of A3V
  • (Projected orbit of zet Del B around its host star zet Del A)


  • The Star zet Del A 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 2.610 AU ( 390377937.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 3.607 AU ( 539604327.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 5.496 AU ( 822237580.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 8.088 AU ( 1209958620.2 km)
  • Radiation at Planetary Boundary of zet Del B : 0.02 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star zet Del A)



  • Kopparapu Recent Venus for Star zet Del A distance : 2.468 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star zet Del A distance : 3.126 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star zet Del A distance : 3.019 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star zet Del A distance : 3.302 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star zet Del A distance : 5.393 AU
  • Kopparapu Outer Boundary for Early Mars for Star zet Del A distance : 5.687 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star zet Del A)



  • Original Kopparapu Recent Venus for Star zet Del A distance : 2.561 AU
  • Original Kopparapu Runaway Greenhouse for Star zet Del A distance : 3.187 AU
  • Original Kopparapu Moist Greenhouse for Star zet Del A distance : 3.389 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star zet Del A distance : 5.486 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star zet Del A distance : 5.705 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star zet Del A)



    (Position in Stellar Map of star zet Del A and its Exoplanet zet Del B)



    (Zoomed position in Stellar Map of star zet Del A and its Exoplanet zet Del B (zoom level 3))

    (Synthetic Spectrum of star zet Del 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