Imaginary Picture of HIP 77900 b

Display orbital revolution of HIP 77900 b around the hoststar HIP 77900
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Exoplanet Name : HIP 77900 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.7600 (Rjup) 19.7278 (Rearth)
Mass (Mjup / Me): 34.0000 (Mjup) 10809.8920 (Mearth)
Semi Major Axis / Orbital Distance Calculated 3200.0000 (AU) 3200.0000 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0000
Orbital Period(Observed/Estimated) 0.00 (Days Obs.) 59868038.10 (Days Est.)
Surface Gravity (G Earth) 27.7755
Star Radiation at Atmospheric Boundary: 0.0 (W/m2)
Measured Temperature (K) 2602.0 (K)
Blackbody T 0.1(K) 18.9 (K)
Blackbody T 0.3(K) 17.7 (K)
Blackbody T 0.7(K) 14.3 (K)
Tidally Locked Blackbody T 0.1(K) 22.5 (K)
Tidally Locked Blackbody T 0.3(K) 21.1 (K)
Size Class: Super-Jupiter-size
Mass Class:
Detection Type : Imaging
Mass Detection : Spectrum
Radius Detection : Flux
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HIP 77900
Alternate Name :
Star Distance(LY) : 503.3
Stellar Radius(Rsun) : 2.8 (Rsun Estimated)
Stellar Mass(Msun) : 1.2 (Msun Measured) 0.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 13700 (K)
Spectral type : B6
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.0
Absolute Magnitude: 16.1
Apparent Magnitude: 22.0
Right Ascension(RA) 238.6255
Declination (DEC) -27.3386
Hubble Space Telescope Guide Star Catalog (GSC) ID 06787-02378
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title 0
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HIP+77900+&submit=SIMBAD+search
Open Exoplanet Database Link 0
HIP 77900 b
HIP 77900 b

  • HIP 77900 b is an exoplanet orbiting the star HIP 77900, located about 503.3 light-years (154.3 pc) away from Solar System. Its discovery was publicly announced on 2013.
  • The host star HIP 77900 has apparent magnitude of 22.0, with absolute magnitude of 16.1.
  • It is 1.2 times more massive and 2.8 times bigger compared with our Sun. The surface temperature is 13700 with its spectral types of B6
  • (Projected orbit of HIP 77900 b around its host star HIP 77900)


  • The Star HIP 77900 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 11.205 AU ( 1676172875.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 15.488 AU ( 2316908949.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 23.600 AU ( 3530456508.5 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 34.728 AU ( 5195221411.6 km)
  • Radiation at Planetary Boundary of HIP 77900 b : 0.03 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HIP 77900)



  • Kopparapu Recent Venus for Star HIP 77900 distance : nan AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HIP 77900 distance : nan AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HIP 77900 distance : nan AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HIP 77900 distance : nan AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HIP 77900 distance : nan AU
  • Kopparapu Outer Boundary for Early Mars for Star HIP 77900 distance : nan AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HIP 77900)



  • Original Kopparapu Recent Venus for Star HIP 77900 distance : nan AU
  • Original Kopparapu Runaway Greenhouse for Star HIP 77900 distance : nan AU
  • Original Kopparapu Moist Greenhouse for Star HIP 77900 distance : nan AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HIP 77900 distance : nan AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HIP 77900 distance : nan AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HIP 77900)



    (Position in Stellar Map of star HIP 77900 and its Exoplanet HIP 77900 b)



    (Zoomed position in Stellar Map of star HIP 77900 and its Exoplanet HIP 77900 b (zoom level 3))

    (Synthetic Spectrum of star HIP 77900*)
    *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