Imaginary Picture of K2-29 Ab

Display orbital revolution of K2-29 Ab around the hoststar K2-29 A
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Exoplanet Name : K2-29 Ab
Alternate Name : "EPIC 211089792 b, WASP-152 b, 1SWASP J041040.95+242407.3 b, 2MASS J04104086+2424061 b, EPIC 211089792 A b, EPIC 2110897
Status : Confirmed
Radius (Rjup / Re): 1.1900 (Rjup) 13.3387 (Rearth)
Mass (Mjup / Me): 0.7300 (Mjup) 232.0947 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0422 (AU) 0.0422 (AU Est.)
Eccentricity : 0.0660
Orbital Period(Yrs) 0.0089
Orbital Period(Observed/Estimated) 3.26 (Days Obs.) 3.27 (Days Est.)
Surface Gravity (G Earth) 1.3045
Star Radiation at Atmospheric Boundary: 387640.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1113.7 (K)
Blackbody T 0.3(K) 1045.8 (K)
Blackbody T 0.7(K) 846.2 (K)
Tidally Locked Blackbody T 0.1(K) 1324.4 (K)
Tidally Locked Blackbody T 0.3(K) 1243.7 (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 : K2-29 A
Alternate Name : "WASP-152, EPIC 211089792, 1SWASP J041040.95+242407.3, 2MASS J04104086+2424061, EPIC 211089792 A, TYC 1818-1428-1, WISE ï
Star Distance(LY) : 582.1
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 2.6 (GY)
Temperature : 5387 (K)
Spectral type : G7V
UV portion[%]: 6.3
Visible portion[%]: 42.3
IR portion[%]: 51.4
Metalicity : 0.3
Absolute Magnitude: 6.3
Apparent Magnitude: 12.6
Right Ascension(RA) 62.6706
Declination (DEC) 24.4020
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
K2-29 Ab
K2-29 Ab

  • K2-29 Ab is an exoplanet orbiting the star K2-29 A, located about 582.1 light-years (178.5 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star K2-29 A has apparent magnitude of 12.6, with absolute magnitude of 6.3.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5387 with its spectral types of G7V
  • In this planetary system, the extrasolar planet K2-29 Ab orbits around the star K2-29 A every 3.3 days with its orbital distance of 0.04 AU ( 6308542.2 km)
  • (Projected orbit of K2-29 Ab around its host star K2-29 A)


  • The Star K2-29 A 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.514 AU ( 76837658.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.710 AU ( 106209723.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.082 AU ( 161840114.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.592 AU ( 238154818.5 km)
  • Radiation at Planetary Boundary of K2-29 Ab : 387640.93 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star K2-29 A)



  • Kopparapu Recent Venus for Star K2-29 A distance : 0.545 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star K2-29 A distance : 0.690 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star K2-29 A distance : 0.666 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star K2-29 A distance : 0.731 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-29 A distance : 1.232 AU
  • Kopparapu Outer Boundary for Early Mars for Star K2-29 A distance : 1.300 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star K2-29 A)



  • Original Kopparapu Recent Venus for Star K2-29 A distance : 0.542 AU
  • Original Kopparapu Runaway Greenhouse for Star K2-29 A distance : 0.710 AU
  • Original Kopparapu Moist Greenhouse for Star K2-29 A distance : 0.717 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star K2-29 A distance : 1.253 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star K2-29 A distance : 1.303 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star K2-29 A)



    (Position in Stellar Map of star K2-29 A and its Exoplanet K2-29 Ab)



    (Zoomed position in Stellar Map of star K2-29 A and its Exoplanet K2-29 Ab (zoom level 3))

    (Synthetic Spectrum of star K2-29 A*)
    *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