Imaginary Picture of TOI-1669 b

Display orbital revolution of TOI-1669 b around the hoststar TOI-1669
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Exoplanet Name : TOI-1669 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.2140 (Rjup) 2.3987 (Rearth)
Mass (Mjup / Me): 0.0132 (Mjup) 4.1968 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0393 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0073
Orbital Period(Observed/Estimated) 2.68 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.7294
Star Radiation at Atmospheric Boundary: 645413.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1265.0 (K)
Blackbody T 0.3(K) 1188.0 (K)
Blackbody T 0.7(K) 961.2 (K)
Tidally Locked Blackbody T 0.1(K) 1504.4 (K)
Tidally Locked Blackbody T 0.3(K) 1412.8 (K)
Size Class: sub-Neptune-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-1669
Alternate Name :
Star Distance(LY) : 364.5
Stellar Radius(Rsun) : 0.9 (Rsun Estimated)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5660 (K)
Spectral type : G5
UV portion[%]: 7.5
Visible portion[%]: 44.2
IR portion[%]: 48.3
Metalicity : 0.0
Absolute Magnitude: 5.1
Apparent Magnitude: 10.3
Right Ascension(RA) 45.9542
Declination (DEC) 83.5878
Hubble Space Telescope Guide Star Catalog (GSC) ID 04616-01481
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=TOI-1669&submit=SIMBAD+search
Open Exoplanet Database Link
TOI-1669 b
TOI-1669 b

  • TOI-1669 b is an exoplanet orbiting the star TOI-1669, located about 364.5 light-years (111.8 pc) away from Solar System. Its discovery was publicly announced on 2022.
  • The host star TOI-1669 has apparent magnitude of 10.3, with absolute magnitude of 5.1.
  • It is 1.1 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5660 with its spectral types of G5
  • In this planetary system, the extrasolar planet TOI-1669 b orbits around the star TOI-1669 every 2.7 days with its orbital distance of 0.04 AU ( 5882002.1 km)
  • (Projected orbit of TOI-1669 b around its host star TOI-1669)


  • The Star TOI-1669 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.618 AU ( 92443124.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.854 AU ( 127780556.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.302 AU ( 194709290.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.915 AU ( 286523251.1 km)
  • Radiation at Planetary Boundary of TOI-1669 b : 645413.87 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-1669)



  • Kopparapu Recent Venus for Star TOI-1669 distance : 0.645 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-1669 distance : 0.817 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-1669 distance : 0.789 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-1669 distance : 0.865 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1669 distance : 1.447 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-1669 distance : 1.526 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-1669)



  • Original Kopparapu Recent Venus for Star TOI-1669 distance : 0.644 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-1669 distance : 0.840 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-1669 distance : 0.853 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1669 distance : 1.472 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-1669 distance : 1.531 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-1669)



    (Position in Stellar Map of star TOI-1669 and its Exoplanet TOI-1669 b)



    (Zoomed position in Stellar Map of star TOI-1669 and its Exoplanet TOI-1669 b (zoom level 3))

    (Synthetic Spectrum of star TOI-1669*)
    *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