Imaginary Picture of NGTS-16 b

Display orbital revolution of NGTS-16 b around the hoststar NGTS-16
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Exoplanet Name : NGTS-16 b
Alternate Name :
Radius (Rjup / Re): 1.3000 (Rjup) 14.5717 (Rearth)
Mass (Mjup / Me): 0.6670 (Mjup) 212.0646 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0523 (AU) 0.0523 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0133
Orbital Period(Observed/Estimated) 4.85 (Days Obs.) 4.36 (Days Est.)
Surface Gravity (G Earth) 0.9987
Star Radiation at Atmospheric Boundary: 625885.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1255.4 (K)
Blackbody T 0.3(K) 1178.9 (K)
Blackbody T 0.7(K) 953.9 (K)
Tidally Locked Blackbody T 0.1(K) 1492.9 (K)
Tidally Locked Blackbody T 0.3(K) 1402.0 (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 : NGTS-16
Alternate Name :
Star Distance(LY) : 2909.3
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 10.3 (GY)
Temperature : 5550 (K)
Spectral type : G7V
UV portion[%]: 7.1
Visible portion[%]: 43.6
IR portion[%]: 49.3
Metalicity : 0.3
Absolute Magnitude: 4.6
Apparent Magnitude: 14.4
Right Ascension(RA) 58.2625
Declination (DEC) -30.8047
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
NGTS-16 b
NGTS-16 b

  • NGTS-16 b is an exoplanet orbiting the star NGTS-16, located about 2909.3 light-years (892.0 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star NGTS-16 has apparent magnitude of 14.4, with absolute magnitude of 4.6.
  • It is 1.0 times more massive and 1.2 times bigger compared with our Sun. The surface temperature is 5550 with its spectral types of G7V
  • In this planetary system, the extrasolar planet NGTS-16 b orbits around the star NGTS-16 every 4.8 days with its orbital distance of 0.05 AU ( 7823968.6 km)
  • (Projected orbit of NGTS-16 b around its host star NGTS-16)


  • The Star NGTS-16 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.809 AU ( 121089052.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.119 AU ( 167376714.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.705 AU ( 255045072.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.509 AU ( 375309996.7 km)
  • Radiation at Planetary Boundary of NGTS-16 b : 625885.61 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star NGTS-16)



  • Kopparapu Recent Venus for Star NGTS-16 distance : 0.850 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star NGTS-16 distance : 1.077 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star NGTS-16 distance : 1.040 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star NGTS-16 distance : 1.140 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star NGTS-16 distance : 1.914 AU
  • Kopparapu Outer Boundary for Early Mars for Star NGTS-16 distance : 2.019 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star NGTS-16)



  • Original Kopparapu Recent Venus for Star NGTS-16 distance : 0.848 AU
  • Original Kopparapu Runaway Greenhouse for Star NGTS-16 distance : 1.107 AU
  • Original Kopparapu Moist Greenhouse for Star NGTS-16 distance : 1.122 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star NGTS-16 distance : 1.947 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star NGTS-16 distance : 2.025 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star NGTS-16)



    (Position in Stellar Map of star NGTS-16 and its Exoplanet NGTS-16 b)



    (Zoomed position in Stellar Map of star NGTS-16 and its Exoplanet NGTS-16 b (zoom level 3))

    (Synthetic Spectrum of star NGTS-16*)
    *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