Imaginary Picture of HD 25015 b

Display orbital revolution of HD 25015 b around the hoststar HD 25015
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Exoplanet Name : HD 25015 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 9.0770 (Mjup) 2885.9232 (Mearth)
Semi Major Axis / Orbital Distance Calculated 6.2480 (AU) 6.2480 (AU Est.)
Eccentricity : 0.3410
Orbital Period(Yrs) 16.7946
Orbital Period(Observed/Estimated) 6134.40 (Days Obs.) 6151.10 (Days Est.)
Surface Gravity (G Earth) 27.8703
Star Radiation at Atmospheric Boundary: 15.3 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 88.3 (K)
Blackbody T 0.3(K) 83.0 (K)
Blackbody T 0.7(K) 67.1 (K)
Tidally Locked Blackbody T 0.1(K) 105.0 (K)
Tidally Locked Blackbody T 0.3(K) 98.6 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : "Radial Velocity, Primary Transit"
Mass Detection : Astrometry
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 25015
Alternate Name :
Star Distance(LY) : 122.2
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 4.0 (GY)
Temperature : 5160 (K)
Spectral type : K2V
UV portion[%]: 4.6
Visible portion[%]: 39.5
IR portion[%]: 55.8
Metalicity : 0.0
Absolute Magnitude: 6.0
Apparent Magnitude: 8.9
Right Ascension(RA) 59.4330
Declination (DEC) -20.2678
Hubble Space Telescope Guide Star Catalog (GSC) ID 05888-00722
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=HD+25015+&submit=SIMBAD+search
Open Exoplanet Database Link
HD 25015 b
HD 25015 b

  • HD 25015 b is an exoplanet orbiting the star HD 25015, located about 122.2 light-years (37.5 pc) away from Solar System. Its discovery was publicly announced on 2019.
  • The host star HD 25015 has apparent magnitude of 8.9, with absolute magnitude of 6.0.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5160 with its spectral types of K2V
  • In this planetary system, the extrasolar planet HD 25015 b orbits around the star HD 25015 every 6134.4 days with its orbital distance of 6.25 AU ( 934687496.1 km)
  • (Projected orbit of HD 25015 b around its host star HD 25015)


  • The Star HD 25015 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.479 AU ( 71620213.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.662 AU ( 98997850.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.008 AU ( 150850816.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.484 AU ( 221983585.0 km)
  • Radiation at Planetary Boundary of HD 25015 b : 15.34 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 25015)



  • Kopparapu Recent Venus for Star HD 25015 distance : 0.514 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 25015 distance : 0.651 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 25015 distance : 0.628 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 25015 distance : 0.689 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 25015 distance : 1.172 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 25015 distance : 1.236 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 25015)



  • Original Kopparapu Recent Venus for Star HD 25015 distance : 0.509 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 25015 distance : 0.670 AU
  • Original Kopparapu Moist Greenhouse for Star HD 25015 distance : 0.674 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 25015 distance : 1.192 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 25015 distance : 1.239 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 25015)



    (Position in Stellar Map of star HD 25015 and its Exoplanet HD 25015 b)



    (Zoomed position in Stellar Map of star HD 25015 and its Exoplanet HD 25015 b (zoom level 3))

    (Synthetic Spectrum of star HD 25015*)
    *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