Imaginary Picture of TOI-1054 c

Display orbital revolution of TOI-1054 c around the hoststar HD 190622
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Exoplanet Name : TOI-1054 c
Alternate Name : HD 190622 c
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 0.7140 (Mjup) 227.0077 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.9210 (AU) 0.9210 (AU Est.)
Eccentricity : 0.0810
Orbital Period(Yrs) 0.8643
Orbital Period(Observed/Estimated) 315.70 (Days Obs.) 315.96 (Days Est.)
Surface Gravity (G Earth) 2.1923
Star Radiation at Atmospheric Boundary: 2883.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 327.1 (K)
Blackbody T 0.3(K) 307.1 (K)
Blackbody T 0.7(K) 248.5 (K)
Tidally Locked Blackbody T 0.1(K) 388.9 (K)
Tidally Locked Blackbody T 0.3(K) 365.3 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection : Radial Velocity
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 190622
Alternate Name : TOI-1054
Star Distance(LY) : 289.4
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 5.3 (GY)
Temperature : 6088 (K)
Spectral type : F
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : -0.2
Absolute Magnitude: 4.2
Apparent Magnitude: 8.9
Right Ascension(RA) 302.1142
Declination (DEC) -54.3175
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
TOI-1054 c
TOI-1054 c

  • TOI-1054 c is an exoplanet orbiting the star HD 190622, located about 289.4 light-years (88.7 pc) away from Solar System. Its discovery was publicly announced on 2023.
  • The host star HD 190622 has apparent magnitude of 8.9, with absolute magnitude of 4.2.
  • It is 1.0 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 6088 with its spectral types of F
  • In this planetary system, the extrasolar planet TOI-1054 c orbits around the star HD 190622 every 315.7 days with its orbital distance of 0.92 AU ( 137779638.9 km)
  • (Projected orbit of TOI-1054 c around its host star HD 190622)


  • The Star HD 190622 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.968 AU ( 144741959.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.337 AU ( 200071213.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.038 AU ( 304864253.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.999 AU ( 448621104.0 km)
  • Radiation at Planetary Boundary of TOI-1054 c : 2883.75 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 190622)



  • Kopparapu Recent Venus for Star HD 190622 distance : 0.984 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 190622 distance : 1.246 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 190622 distance : 1.204 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 190622 distance : 1.319 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 190622 distance : 2.184 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 190622 distance : 2.304 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 190622)



  • Original Kopparapu Recent Venus for Star HD 190622 distance : 0.992 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 190622 distance : 1.279 AU
  • Original Kopparapu Moist Greenhouse for Star HD 190622 distance : 1.312 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 190622 distance : 2.223 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 190622 distance : 2.312 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 190622)



    (Position in Stellar Map of star HD 190622 and its Exoplanet TOI-1054 c)



    (Zoomed position in Stellar Map of star HD 190622 and its Exoplanet TOI-1054 c (zoom level 3))

    (Synthetic Spectrum of star HD 190622*)
    *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