Imaginary Picture of NGTS-30 b

Display orbital revolution of NGTS-30 b around the hoststar NGTS-30
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Exoplanet Name : NGTS-30 b
Alternate Name : TOI-4862 b
Status : Confirmed
Radius (Rjup / Re): 0.9300 (Rjup) 10.4244 (Rearth)
Mass (Mjup / Me): 0.9600 (Mjup) 305.2205 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.4080 (AU) 0.4080 (AU Est.)
Eccentricity : 0.2900
Orbital Period(Yrs) 0.2691
Orbital Period(Observed/Estimated) 98.30 (Days Obs.) 98.18 (Days Est.)
Surface Gravity (G Earth) 2.8088
Star Radiation at Atmospheric Boundary: 5437.6 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 383.3 (K)
Blackbody T 0.3(K) 359.9 (K)
Blackbody T 0.7(K) 291.2 (K)
Tidally Locked Blackbody T 0.1(K) 455.8 (K)
Tidally Locked Blackbody T 0.3(K) 428.0 (K)
Size Class: 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-30
Alternate Name : TOI-4862
Star Distance(LY) : 762.9
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 1.1 (GY)
Temperature : 5455 (K)
Spectral type : G7
UV portion[%]: 6.7
Visible portion[%]: 42.9
IR portion[%]: 50.4
Metalicity : -0.0
Absolute Magnitude: 5.7
Apparent Magnitude: 12.5
Right Ascension(RA) 173.7149
Declination (DEC) -24.6055
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-30 b
NGTS-30 b

  • NGTS-30 b is an exoplanet orbiting the star NGTS-30, located about 762.9 light-years (233.9 pc) away from Solar System. Its discovery was publicly announced on 2024.
  • The host star NGTS-30 has apparent magnitude of 12.5, with absolute magnitude of 5.7.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5455 with its spectral types of G7
  • In this planetary system, the extrasolar planet NGTS-30 b orbits around the star NGTS-30 every 98.3 days with its orbital distance of 0.41 AU ( 61035931.2 km)
  • (Projected orbit of NGTS-30 b around its host star NGTS-30)


  • The Star NGTS-30 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.589 AU ( 88047777.9 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.814 AU ( 121705038.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.240 AU ( 185451545.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.824 AU ( 272900073.5 km)
  • Radiation at Planetary Boundary of NGTS-30 b : 5437.57 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star NGTS-30)



  • Kopparapu Recent Venus for Star NGTS-30 distance : 0.622 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star NGTS-30 distance : 0.787 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star NGTS-30 distance : 0.760 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star NGTS-30 distance : 0.834 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star NGTS-30 distance : 1.403 AU
  • Kopparapu Outer Boundary for Early Mars for Star NGTS-30 distance : 1.480 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star NGTS-30)



  • Original Kopparapu Recent Venus for Star NGTS-30 distance : 0.619 AU
  • Original Kopparapu Runaway Greenhouse for Star NGTS-30 distance : 0.810 AU
  • Original Kopparapu Moist Greenhouse for Star NGTS-30 distance : 0.819 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star NGTS-30 distance : 1.428 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star NGTS-30 distance : 1.485 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star NGTS-30)



    (Position in Stellar Map of star NGTS-30 and its Exoplanet NGTS-30 b)



    (Zoomed position in Stellar Map of star NGTS-30 and its Exoplanet NGTS-30 b (zoom level 3))

    (Synthetic Spectrum of star NGTS-30*)
    *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