Imaginary Picture of NGTS-26 b

Display orbital revolution of NGTS-26 b around the hoststar NGTS-26
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Exoplanet Name : NGTS-26 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.3300 (Rjup) 14.9080 (Rearth)
Mass (Mjup / Me): 0.2900 (Mjup) 92.2020 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0490 (AU) 0.0490 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0124
Orbital Period(Observed/Estimated) 4.52 (Days Obs.) 4.04 (Days Est.)
Surface Gravity (G Earth) 0.4149
Star Radiation at Atmospheric Boundary: 652079.5 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1268.3 (K)
Blackbody T 0.3(K) 1191.1 (K)
Blackbody T 0.7(K) 963.7 (K)
Tidally Locked Blackbody T 0.1(K) 1508.3 (K)
Tidally Locked Blackbody T 0.3(K) 1416.4 (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-26
Alternate Name :
Star Distance(LY) : 3610.5
Stellar Radius(Rsun) : 1.2 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 11.5 (GY)
Temperature : 5550 (K)
Spectral type : G6
UV portion[%]: 7.1
Visible portion[%]: 43.6
IR portion[%]: 49.3
Metalicity : 0.2
Absolute Magnitude: 4.8
Apparent Magnitude: 15.0
Right Ascension(RA) 217.6829
Declination (DEC) -31.7324
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-26 b
NGTS-26 b

  • NGTS-26 b is an exoplanet orbiting the star NGTS-26, located about 3610.5 light-years (1107.0 pc) away from Solar System. Its discovery was publicly announced on 2024.
  • The host star NGTS-26 has apparent magnitude of 15.0, with absolute magnitude of 4.8.
  • 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 G6
  • In this planetary system, the extrasolar planet NGTS-26 b orbits around the star NGTS-26 every 4.5 days with its orbital distance of 0.05 AU ( 7330295.7 km)
  • (Projected orbit of NGTS-26 b around its host star NGTS-26)


  • The Star NGTS-26 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.774 AU ( 115798269.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.070 AU ( 160063469.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.630 AU ( 243901305.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.399 AU ( 358911456.1 km)
  • Radiation at Planetary Boundary of NGTS-26 b : 652079.52 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star NGTS-26)



  • Kopparapu Recent Venus for Star NGTS-26 distance : 0.813 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star NGTS-26 distance : 1.030 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star NGTS-26 distance : 0.995 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star NGTS-26 distance : 1.091 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star NGTS-26 distance : 1.830 AU
  • Kopparapu Outer Boundary for Early Mars for Star NGTS-26 distance : 1.931 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star NGTS-26)



  • Original Kopparapu Recent Venus for Star NGTS-26 distance : 0.811 AU
  • Original Kopparapu Runaway Greenhouse for Star NGTS-26 distance : 1.059 AU
  • Original Kopparapu Moist Greenhouse for Star NGTS-26 distance : 1.073 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star NGTS-26 distance : 1.862 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star NGTS-26 distance : 1.936 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star NGTS-26)



    (Position in Stellar Map of star NGTS-26 and its Exoplanet NGTS-26 b)



    (Zoomed position in Stellar Map of star NGTS-26 and its Exoplanet NGTS-26 b (zoom level 3))

    (Synthetic Spectrum of star NGTS-26*)
    *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