Imaginary Picture of HD 93963 A b

Display orbital revolution of HD 93963 A b around the hoststar HD 93963 A
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Exoplanet Name : HD 93963 A b
Alternate Name : TOI-1797 b
Status : Confirmed
Radius (Rjup / Re): 0.1204 (Rjup) 1.3496 (Rearth)
Mass (Mjup / Me): 0.0091 (Mjup) 2.8908 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0209 (AU) 0.0209 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0028
Orbital Period(Observed/Estimated) 1.04 (Days Obs.) 1.04 (Days Est.)
Surface Gravity (G Earth) 1.5872
Star Radiation at Atmospheric Boundary: 3942741.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1988.8 (K)
Blackbody T 0.3(K) 1867.7 (K)
Blackbody T 0.7(K) 1511.2 (K)
Tidally Locked Blackbody T 0.1(K) 2365.1 (K)
Tidally Locked Blackbody T 0.3(K) 2221.1 (K)
Size Class: super-Earth-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 93963 A
Alternate Name : TOI-1797
Star Distance(LY) : 268.6
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 1.4 (GY)
Temperature : 5987 (K)
Spectral type : G1
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.1
Absolute Magnitude: 17.4
Apparent Magnitude: 22.0
Right Ascension(RA) 162.7792
Declination (DEC) 25.6411
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
HD 93963 A b
HD 93963 A b

  • HD 93963 A b is an exoplanet orbiting the star HD 93963 A, located about 268.6 light-years (82.3 pc) away from Solar System. Its discovery was publicly announced on 2022.
  • The host star HD 93963 A has apparent magnitude of 22.0, with absolute magnitude of 17.4.
  • It is 1.1 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5987 with its spectral types of G1
  • In this planetary system, the extrasolar planet HD 93963 A b orbits around the star HD 93963 A every 1.0 days with its orbital distance of 0.02 AU ( 3119115.6 km)
  • (Projected orbit of HD 93963 A b around its host star HD 93963 A)


  • The Star HD 93963 A 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.810 AU ( 121160466.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.120 AU ( 167475427.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.706 AU ( 255195489.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.510 AU ( 375531342.7 km)
  • Radiation at Planetary Boundary of HD 93963 A b : 3942741.84 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 93963 A)



  • Kopparapu Recent Venus for Star HD 93963 A distance : 0.829 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 93963 A distance : 1.050 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 93963 A distance : 1.014 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 93963 A distance : 1.111 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 93963 A distance : 1.844 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 93963 A distance : 1.945 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 93963 A)



  • Original Kopparapu Recent Venus for Star HD 93963 A distance : 0.834 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 93963 A distance : 1.078 AU
  • Original Kopparapu Moist Greenhouse for Star HD 93963 A distance : 1.103 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 93963 A distance : 1.877 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 93963 A distance : 1.952 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 93963 A)



    (Position in Stellar Map of star HD 93963 A and its Exoplanet HD 93963 A b)



    (Zoomed position in Stellar Map of star HD 93963 A and its Exoplanet HD 93963 A b (zoom level 3))

    (Synthetic Spectrum of star HD 93963 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