Imaginary Picture of COCONUTS-3 b

Display orbital revolution of COCONUTS-3 b around the hoststar COCONUTS-3
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Exoplanet Name : COCONUTS-3 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.0300 (Rjup) 11.5453 (Rearth)
Mass (Mjup / Me): 39.0000 (Mjup) 12399.5820 (Mearth)
Semi Major Axis / Orbital Distance Calculated 1891.0000 (AU) 1891.0000 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0000
Orbital Period(Observed/Estimated) 0.00 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 93.0248
Star Radiation at Atmospheric Boundary: 0.0 (W/m2)
Measured Temperature (K) 1362.0 (K)
Blackbody T 0.1(K) 2.0 (K)
Blackbody T 0.3(K) 1.9 (K)
Blackbody T 0.7(K) 1.5 (K)
Tidally Locked Blackbody T 0.1(K) 2.4 (K)
Tidally Locked Blackbody T 0.3(K) 2.3 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Imaging
Mass Detection : Spectrum
Radius Detection : Flux
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : COCONUTS-3
Alternate Name :
Star Distance(LY) : 100.7
Stellar Radius(Rsun) : 0.4 (Rsun Estimated)
Stellar Mass(Msun) : 0.0 (Msun Measured) 0.0 (Msun Estimated)
Star Age : 0.5 (GY)
Temperature : 2966 (K)
Spectral type : M5.5
UV portion[%]: 0.1
Visible portion[%]: 3.3
IR portion[%]: 96.6
Metalicity : 0.0
Absolute Magnitude: 12.6
Apparent Magnitude: 15.0
Right Ascension(RA) 123.3292
Declination (DEC) -15.3778
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
COCONUTS-3 b
COCONUTS-3 b

  • COCONUTS-3 b is an exoplanet orbiting the star COCONUTS-3, located about 100.7 light-years (30.9 pc) away from Solar System. Its discovery was publicly announced on 2022.
  • The host star COCONUTS-3 has apparent magnitude of 15.0, with absolute magnitude of 12.6.
  • (Projected orbit of COCONUTS-3 b around its host star COCONUTS-3)


  • The Star COCONUTS-3 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.076 AU ( 11347744.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.105 AU ( 15685547.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.160 AU ( 23901303.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.235 AU ( 35171815.2 km)
  • Radiation at Planetary Boundary of COCONUTS-3 b : 0.00 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star COCONUTS-3)



  • Kopparapu Recent Venus for Star COCONUTS-3 distance : 0.086 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star COCONUTS-3 distance : 0.109 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star COCONUTS-3 distance : 0.105 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star COCONUTS-3 distance : 0.116 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star COCONUTS-3 distance : 0.218 AU
  • Kopparapu Outer Boundary for Early Mars for Star COCONUTS-3 distance : 0.230 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star COCONUTS-3)



  • Original Kopparapu Recent Venus for Star COCONUTS-3 distance : 0.086 AU
  • Original Kopparapu Runaway Greenhouse for Star COCONUTS-3 distance : 0.113 AU
  • Original Kopparapu Moist Greenhouse for Star COCONUTS-3 distance : 0.114 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star COCONUTS-3 distance : 0.221 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star COCONUTS-3 distance : 0.230 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star COCONUTS-3)



    (Position in Stellar Map of star COCONUTS-3 and its Exoplanet COCONUTS-3 b)



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

    (Synthetic Spectrum of star COCONUTS-3*)
    *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