Imaginary Picture of TWA 5 A (AB) b

Display orbital revolution of TWA 5 A (AB) b around the hoststar TWA 5 A (AB)
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Exoplanet Name : TWA 5 A (AB) b
Alternate Name :
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 25.0000 (Mjup) 7948.4500 (Mearth)
Semi Major Axis / Orbital Distance Calculated 86.0000 (AU) 86.0000 (AU Est.)
Eccentricity : 0.4500
Orbital Period(Yrs) 0.0000
Orbital Period(Observed/Estimated) 0.00 (Days Obs.) 460583.00 (Days Est.)
Star Radiation at Atmospheric Boundary: 0.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 11.8 (K)
Blackbody T 0.3(K) 11.1 (K)
Blackbody T 0.7(K) 9.0 (K)
Tidally Locked Blackbody T 0.1(K) 14.1 (K)
Tidally Locked Blackbody T 0.3(K) 13.2 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Imaging
Mass Detection : Spectrum
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : TWA 5 A (AB)
Alternate Name :
Star Distance(LY) : 157.6
Stellar Radius(Rsun) : 0.4 (Rsun Estimated)
Stellar Mass(Msun) : 0.4 (Msun Measured) 0.0 (Msun Estimated)
Star Age : 0.1 (GY)
Temperature : 3700 (K)
Spectral type : M1.5
Metalicity : 0.0
Absolute Magnitude: 8.7
Apparent Magnitude: 12.1
Right Ascension(RA) 172.9802
Declination (DEC) -34.6075
Hubble Space Telescope Guide Star Catalog (GSC) ID 07223-00275
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title 0
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=TWA+5+A+&submit=SIMBAD+search
Open Exoplanet Database Link 0
TWA 5 A (AB) b
TWA 5 A (AB) b

  • TWA 5 A (AB) b is an exoplanet orbiting the star TWA 5 A (AB), located about 157.6 light-years (48.3 pc) away from Solar System. Its discovery was publicly announced on 2009.
  • The host star TWA 5 A (AB) has apparent magnitude of 12.1, with absolute magnitude of 8.7.
  • It is 0.4 times more massive and 0.4 times bigger compared with our Sun. The surface temperature is 3700 with its spectral types of M1.5
  • (Projected orbit of TWA 5 A (AB) b around its host star TWA 5 A (AB))


  • The Star TWA 5 A (AB) 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.118 AU ( 17719607.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.164 AU ( 24493128.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.249 AU ( 37322107.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.367 AU ( 54921116.3 km)
  • Radiation at Planetary Boundary of TWA 5 A (AB) b : 0.00 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TWA 5 A (AB))



  • Kopparapu Recent Venus for Star TWA 5 A (AB) distance : 0.133 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star TWA 5 A (AB) distance : 0.169 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TWA 5 A (AB) distance : 0.163 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star TWA 5 A (AB) distance : 0.179 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star TWA 5 A (AB) distance : 0.325 AU
  • Kopparapu Outer Boundary for Early Mars for Star TWA 5 A (AB) distance : 0.343 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star TWA 5 A (AB))



  • Original Kopparapu Recent Venus for Star TWA 5 A (AB) distance : 0.132 AU
  • Original Kopparapu Runaway Greenhouse for Star TWA 5 A (AB) distance : 0.175 AU
  • Original Kopparapu Moist Greenhouse for Star TWA 5 A (AB) distance : 0.175 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TWA 5 A (AB) distance : 0.331 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star TWA 5 A (AB) distance : 0.344 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star TWA 5 A (AB))



    (Position in Stellar Map of star TWA 5 A (AB) and its Exoplanet TWA 5 A (AB) b)



    (Zoomed position in Stellar Map of star TWA 5 A (AB) and its Exoplanet TWA 5 A (AB) b (zoom level 3))