Imaginary Picture of TIC 311276853 b

Display orbital revolution of TIC 311276853 b around the hoststar TIC 311276853
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Exoplanet Name : TIC 311276853 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.4202 (Rjup) 4.7100 (Rearth)
Mass (Mjup / Me): 0.0727 (Mjup) 23.1227 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0430 (AU) 0.0430 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0142
Orbital Period(Observed/Estimated) 5.17 (Days Obs.) 5.18 (Days Est.)
Surface Gravity (G Earth) 1.0423
Star Radiation at Atmospheric Boundary: 17814.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 515.6 (K)
Blackbody T 0.3(K) 484.2 (K)
Blackbody T 0.7(K) 391.8 (K)
Tidally Locked Blackbody T 0.1(K) 613.2 (K)
Tidally Locked Blackbody T 0.3(K) 575.8 (K)
Size Class: Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : TIC 311276853
Alternate Name : UCAC4 581-053434
Star Distance(LY) : 292.8
Stellar Radius(Rsun) : 0.4 (Rsun Measured)
Stellar Mass(Msun) : 0.4 (Msun Measured) 0.4 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3583 (K)
Spectral type : M3V
UV portion[%]: 0.2
Visible portion[%]: 11.7
IR portion[%]: 88.1
Metalicity : -0.2
Absolute Magnitude: 10.6
Apparent Magnitude: 15.3
Right Ascension(RA) 247.7390
Declination (DEC) 26.1070
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
TIC 311276853 b
TIC 311276853 b

  • TIC 311276853 b is an exoplanet orbiting the star TIC 311276853, located about 292.8 light-years (89.8 pc) away from Solar System. Its discovery was publicly announced on 2024.
  • The host star TIC 311276853 has apparent magnitude of 15.3, with absolute magnitude of 10.6.
  • It is 0.4 times more massive and 0.4 times bigger compared with our Sun. The surface temperature is 3583 with its spectral types of M3V
  • In this planetary system, the extrasolar planet TIC 311276853 b orbits around the star TIC 311276853 every 5.2 days with its orbital distance of 0.04 AU ( 6432708.4 km)
  • (Projected orbit of TIC 311276853 b around its host star TIC 311276853)


  • The Star TIC 311276853 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.112 AU ( 16796178.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.155 AU ( 23216707.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.236 AU ( 35377125.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.348 AU ( 52058989.2 km)
  • Radiation at Planetary Boundary of TIC 311276853 b : 17814.46 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TIC 311276853)



  • Kopparapu Recent Venus for Star TIC 311276853 distance : 0.127 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TIC 311276853 distance : 0.160 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TIC 311276853 distance : 0.155 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TIC 311276853 distance : 0.170 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TIC 311276853 distance : 0.311 AU
  • Kopparapu Outer Boundary for Early Mars for Star TIC 311276853 distance : 0.328 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TIC 311276853)



  • Original Kopparapu Recent Venus for Star TIC 311276853 distance : 0.126 AU
  • Original Kopparapu Runaway Greenhouse for Star TIC 311276853 distance : 0.166 AU
  • Original Kopparapu Moist Greenhouse for Star TIC 311276853 distance : 0.166 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TIC 311276853 distance : 0.316 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TIC 311276853 distance : 0.328 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TIC 311276853)



    (Position in Stellar Map of star TIC 311276853 and its Exoplanet TIC 311276853 b)



    (Zoomed position in Stellar Map of star TIC 311276853 and its Exoplanet TIC 311276853 b (zoom level 3))

    (Synthetic Spectrum of star TIC 311276853*)
    *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