Imaginary Picture of TOI-574 b

Display orbital revolution of TOI-574 b around the hoststar HATS-26
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Exoplanet Name : TOI-574 b
Alternate Name : HATS-26 b
Status : Confirmed
Radius (Rjup / Re): 1.7500 (Rjup) 19.6157 (Rearth)
Mass (Mjup / Me): 0.6500 (Mjup) 206.6597 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0474 (AU) 0.0474 (AU Est.)
Eccentricity : 0.1220
Orbital Period(Yrs) 0.0090
Orbital Period(Observed/Estimated) 3.30 (Days Obs.) 3.30 (Days Est.)
Surface Gravity (G Earth) 0.5371
Star Radiation at Atmospheric Boundary: 3092189.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1871.6 (K)
Blackbody T 0.3(K) 1757.6 (K)
Blackbody T 0.7(K) 1422.1 (K)
Tidally Locked Blackbody T 0.1(K) 2225.7 (K)
Tidally Locked Blackbody T 0.3(K) 2090.2 (K)
Size Class: Super-Jupiter-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 : HATS-26
Alternate Name : "2MASS 09394244-2835081, GSC 6614-01083"
Star Distance(LY) : 2729.3
Stellar Radius(Rsun) : 2.0 (Rsun Measured)
Stellar Mass(Msun) : 1.3 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 4.0 (GY)
Temperature : 6071 (K)
Spectral type : F
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.0
Absolute Magnitude: 3.3
Apparent Magnitude: 13.0
Right Ascension(RA) 144.9269
Declination (DEC) -28.5856
Hubble Space Telescope Guide Star Catalog (GSC) ID 06614-01083
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HATS-26&submit=SIMBAD+search
Open Exoplanet Database Link
TOI-574 b
TOI-574 b

  • TOI-574 b is an exoplanet orbiting the star HATS-26, located about 2729.3 light-years (836.8 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star HATS-26 has apparent magnitude of 13.0, with absolute magnitude of 3.3.
  • It is 1.3 times more massive and 2.0 times bigger compared with our Sun. The surface temperature is 6071 with its spectral types of F
  • In this planetary system, the extrasolar planet TOI-574 b orbits around the star HATS-26 every 3.3 days with its orbital distance of 0.05 AU ( 7083459.2 km)
  • (Projected orbit of TOI-574 b around its host star HATS-26)


  • The Star HATS-26 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.629 AU ( 243673749.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 2.252 AU ( 336820801.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 3.431 AU ( 513240362.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 5.049 AU ( 755255677.1 km)
  • Radiation at Planetary Boundary of TOI-574 b : 3092189.56 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HATS-26)



  • Kopparapu Recent Venus for Star HATS-26 distance : 1.658 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HATS-26 distance : 2.100 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HATS-26 distance : 2.028 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HATS-26 distance : 2.223 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-26 distance : 3.683 AU
  • Kopparapu Outer Boundary for Early Mars for Star HATS-26 distance : 3.884 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HATS-26)



  • Original Kopparapu Recent Venus for Star HATS-26 distance : 1.671 AU
  • Original Kopparapu Runaway Greenhouse for Star HATS-26 distance : 2.156 AU
  • Original Kopparapu Moist Greenhouse for Star HATS-26 distance : 2.211 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HATS-26 distance : 3.748 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HATS-26 distance : 3.898 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HATS-26)



    (Position in Stellar Map of star HATS-26 and its Exoplanet TOI-574 b)



    (Zoomed position in Stellar Map of star HATS-26 and its Exoplanet TOI-574 b (zoom level 3))

    (Synthetic Spectrum of star HATS-26*)
    *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