Imaginary Picture of TOI-544 c

Display orbital revolution of TOI-544 c around the hoststar TOI-544
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Exoplanet Name : TOI-544 c
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 21.5000 (Mjup) 6835.6670 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.2519 (AU Est.)
Eccentricity : 0.3200
Orbital Period(Yrs) 0.1371
Orbital Period(Observed/Estimated) 50.09 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 66.0143
Star Radiation at Atmospheric Boundary: 3067.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 332.1 (K)
Blackbody T 0.3(K) 311.9 (K)
Blackbody T 0.7(K) 252.4 (K)
Tidally Locked Blackbody T 0.1(K) 395.0 (K)
Tidally Locked Blackbody T 0.3(K) 370.9 (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 : TOI-544
Alternate Name : HD 290498
Star Distance(LY) : 134.1
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 4369 (K)
Spectral type : K5
UV portion[%]: 1.1
Visible portion[%]: 28.8
IR portion[%]: 70.1
Metalicity : 0.0
Absolute Magnitude: 7.9
Apparent Magnitude: 11.0
Right Ascension(RA) 82.2917
Declination (DEC) -0.3425
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-544 c
TOI-544 c

  • TOI-544 c is an exoplanet orbiting the star TOI-544, located about 134.1 light-years (41.1 pc) away from Solar System. Its discovery was publicly announced on 2023.
  • The host star TOI-544 has apparent magnitude of 11.0, with absolute magnitude of 7.9.
  • It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4369 with its spectral types of K5
  • In this planetary system, the extrasolar planet TOI-544 c orbits around the star TOI-544 every 50.1 days with its orbital distance of 0.25 AU ( 37684822.9 km)
  • (Projected orbit of TOI-544 c around its host star TOI-544)


  • The Star TOI-544 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.273 AU ( 40828755.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.377 AU ( 56436009.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.575 AU ( 85995988.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.846 AU ( 126546864.9 km)
  • Radiation at Planetary Boundary of TOI-544 c : 3067.18 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-544)



  • Kopparapu Recent Venus for Star TOI-544 distance : 0.303 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-544 distance : 0.383 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-544 distance : 0.370 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-544 distance : 0.407 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-544 distance : 0.714 AU
  • Kopparapu Outer Boundary for Early Mars for Star TOI-544 distance : 0.753 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-544)



  • Original Kopparapu Recent Venus for Star TOI-544 distance : 0.299 AU
  • Original Kopparapu Runaway Greenhouse for Star TOI-544 distance : 0.396 AU
  • Original Kopparapu Moist Greenhouse for Star TOI-544 distance : 0.395 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-544 distance : 0.726 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TOI-544 distance : 0.755 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-544)



    (Position in Stellar Map of star TOI-544 and its Exoplanet TOI-544 c)



    (Zoomed position in Stellar Map of star TOI-544 and its Exoplanet TOI-544 c (zoom level 3))

    (Synthetic Spectrum of star TOI-544*)
    *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