Imaginary Picture of TOI-1634 b

Display orbital revolution of TOI-1634 b around the hoststar TOI-1634
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Exoplanet Name : TOI-1634 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.1597 (Rjup) 1.7901 (Rearth)
Mass (Mjup / Me): 0.0155 (Mjup) 4.9121 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0155 (AU) 0.0155 (AU Est.)
Eccentricity : 0.1600
Orbital Period(Yrs) 0.0027
Orbital Period(Observed/Estimated) 0.99 (Days Obs.) 0.99 (Days Est.)
Surface Gravity (G Earth) 1.5329
Star Radiation at Atmospheric Boundary: 165229.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 899.8 (K)
Blackbody T 0.3(K) 845.0 (K)
Blackbody T 0.7(K) 683.7 (K)
Tidally Locked Blackbody T 0.1(K) 1070.1 (K)
Tidally Locked Blackbody T 0.3(K) 1004.9 (K)
Size Class: super-Earth-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : TOI-1634
Alternate Name :
Star Distance(LY) : 115.0
Stellar Radius(Rsun) : 0.5 (Rsun Measured)
Stellar Mass(Msun) : 0.5 (Msun Measured) 0.5 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3550 (K)
Spectral type : M2
UV portion[%]: 0.2
Visible portion[%]: 10.6
IR portion[%]: 89.2
Metalicity : 0.2
Absolute Magnitude: 10.5
Apparent Magnitude: 13.2
Right Ascension(RA) 56.3917
Declination (DEC) 37.1122
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=TOI-1634&submit=SIMBAD+search
Open Exoplanet Database Link
TOI-1634 b
TOI-1634 b

  • TOI-1634 b is an exoplanet orbiting the star TOI-1634, located about 115.0 light-years (35.3 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star TOI-1634 has apparent magnitude of 13.2, with absolute magnitude of 10.5.
  • It is 0.5 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 3550 with its spectral types of M2
  • In this planetary system, the extrasolar planet TOI-1634 b orbits around the star TOI-1634 every 1.0 days with its orbital distance of 0.02 AU ( 2311287.1 km)
  • (Projected orbit of TOI-1634 b around its host star TOI-1634)


  • The Star TOI-1634 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.123 AU ( 18379230.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.170 AU ( 25404900.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.259 AU ( 38711445.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.381 AU ( 56965588.1 km)
  • Radiation at Planetary Boundary of TOI-1634 b : 165229.00 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-1634)



  • Kopparapu Recent Venus for Star TOI-1634 distance : 0.139 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-1634 distance : 0.176 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-1634 distance : 0.170 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-1634 distance : 0.186 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1634 distance : 0.341 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-1634 distance : 0.359 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-1634)



  • Original Kopparapu Recent Venus for Star TOI-1634 distance : 0.138 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-1634 distance : 0.182 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-1634 distance : 0.182 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1634 distance : 0.346 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-1634 distance : 0.360 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-1634)



    (Position in Stellar Map of star TOI-1634 and its Exoplanet TOI-1634 b)



    (Zoomed position in Stellar Map of star TOI-1634 and its Exoplanet TOI-1634 b (zoom level 3))

    (Synthetic Spectrum of star TOI-1634*)
    *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