Imaginary Picture of NGC 2423 3 b
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Exoplanet Name : NGC 2423 3 b
Alternate Name :
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 10.6000 (Mjup) 3370.1428 (Mearth)
Semi Major Axis / Orbital Distance Calculated 2.1000 (AU) 2.1000 (AU Est.)
Eccentricity : 0.2100
Orbital Period(Yrs) 1.9556
Orbital Period(Observed/Estimated) 714.30 (Days Obs.) 717.49 (Days Est.)
Star Radiation at Atmospheric Boundary: 95.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 139.3 (K)
Blackbody T 0.3(K) 130.8 (K)
Blackbody T 0.7(K) 105.9 (K)
Tidally Locked Blackbody T 0.1(K) 165.7 (K)
Tidally Locked Blackbody T 0.3(K) 155.6 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : NGC 2423 3
Alternate Name :
Star Distance(LY) : 2498.4
Stellar Radius(Rsun) : 1.7 (Rsun Estimated)
Stellar Mass(Msun) : 2.4 (Msun Measured) 2.4 (Msun Estimated)
Star Age : 0.8 (GY)
Temperature : 3300 (K)
Spectral type : M9
Metalicity : 0.1
Absolute Magnitude: 0.0
Apparent Magnitude: 9.4
Right Ascension(RA) 114.2885
Declination (DEC) -13.9067
Hubble Space Telescope Guide Star Catalog (GSC) ID 05409-02156
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.harvard.edu/simbad/sim-basic?Ident=NGC+2423+3+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/NGC%202423%203%20b/
NGC 2423 3 b
NGC 2423 3 b

  • NGC 2423 3 b is an exoplanet orbiting the star NGC 2423 3, located about 2498.4 light-years (766.0 pc) away from Solar System. Its discovery was publicly announced on 2007.
  • The host star NGC 2423 3 has apparent magnitude of 9.4, with absolute magnitude of 0.0.
  • It is 2.4 times more massive and 1.7 times bigger compared with our Sun. The surface temperature is 3300 with its spectral types of M9
  • In this planetary system, the extrasolar planet NGC 2423 3 b orbits around the star NGC 2423 3 every 714.3 days with its orbital distance of 2.10 AU ( 314155528.5 km)
  • (Projected orbit of NGC 2423 3 b around its host star NGC 2423 3)


  • The Star NGC 2423 3 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.400 AU ( 59887211.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.553 AU ( 82779776.8 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.843 AU ( 126138060.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.241 AU ( 185617682.1 km)
  • Radiation at Planetary Boundary of NGC 2423 3 b : 94.96 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star NGC 2423 3)



  • Kopparapu Recent Venus for Star NGC 2423 3 distance : 0.453 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star NGC 2423 3 distance : 0.574 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star NGC 2423 3 distance : 0.554 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star NGC 2423 3 distance : 0.610 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star NGC 2423 3 distance : 1.127 AU
  • Kopparapu Outer Boundary for Early Mars for Star NGC 2423 3 distance : 1.189 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star NGC 2423 3)



  • Original Kopparapu Recent Venus for Star NGC 2423 3 distance : 0.450 AU
  • Original Kopparapu Runaway Greenhouse for Star NGC 2423 3 distance : 0.594 AU
  • Original Kopparapu Moist Greenhouse for Star NGC 2423 3 distance : 0.596 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star NGC 2423 3 distance : 1.145 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star NGC 2423 3 distance : 1.191 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star NGC 2423 3)



    (Position in Stellar Map of star NGC 2423 3 and its Exoplanet NGC 2423 3 b)



    (Zoomed position in Stellar Map of star NGC 2423 3 and its Exoplanet NGC 2423 3 b (zoom level 3))