Imaginary Picture of TOI-1260 c

Display orbital revolution of TOI-1260 c around the hoststar TOI-1260
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Exoplanet Name : TOI-1260 c
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.2462 (Rjup) 2.7597 (Rearth)
Mass (Mjup / Me): 0.0415 (Mjup) 13.1944 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0657 (AU) 0.0657 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0205
Orbital Period(Observed/Estimated) 7.49 (Days Obs.) 7.57 (Days Est.)
Surface Gravity (G Earth) 1.7325
Star Radiation at Atmospheric Boundary: 38320.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 624.5 (K)
Blackbody T 0.3(K) 586.4 (K)
Blackbody T 0.7(K) 474.5 (K)
Tidally Locked Blackbody T 0.1(K) 742.6 (K)
Tidally Locked Blackbody T 0.3(K) 697.4 (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-1260
Alternate Name :
Star Distance(LY) : 239.4
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.7 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 4227 (K)
Spectral type : K6V
UV portion[%]: 0.8
Visible portion[%]: 26.8
IR portion[%]: 72.3
Metalicity : 0.0
Absolute Magnitude: 7.6
Apparent Magnitude: 11.9
Right Ascension(RA) 157.1458
Declination (DEC) 65.8542
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-1260 c
TOI-1260 c

  • TOI-1260 c is an exoplanet orbiting the star TOI-1260, located about 239.4 light-years (73.4 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star TOI-1260 has apparent magnitude of 11.9, with absolute magnitude of 7.6.
  • It is 0.7 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4227 with its spectral types of K6V
  • In this planetary system, the extrasolar planet TOI-1260 c orbits around the star TOI-1260 every 7.5 days with its orbital distance of 0.07 AU ( 9828580.1 km)
  • (Projected orbit of TOI-1260 c around its host star TOI-1260)


  • The Star TOI-1260 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.252 AU ( 37638817.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.348 AU ( 52026681.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.530 AU ( 79277148.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.780 AU ( 116659797.3 km)
  • Radiation at Planetary Boundary of TOI-1260 c : 38320.38 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-1260)



  • Kopparapu Recent Venus for Star TOI-1260 distance : 0.280 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-1260 distance : 0.355 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-1260 distance : 0.343 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-1260 distance : 0.377 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1260 distance : 0.666 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-1260 distance : 0.702 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-1260)



  • Original Kopparapu Recent Venus for Star TOI-1260 distance : 0.277 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-1260 distance : 0.367 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-1260 distance : 0.366 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-1260 distance : 0.677 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-1260 distance : 0.704 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-1260)



    (Position in Stellar Map of star TOI-1260 and its Exoplanet TOI-1260 c)



    (Zoomed position in Stellar Map of star TOI-1260 and its Exoplanet TOI-1260 c (zoom level 3))

    (Synthetic Spectrum of star TOI-1260*)
    *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