Imaginary Picture of Wendelstein-2 b

Display orbital revolution of Wendelstein-2 b around the hoststar Wendelstein-2
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Exoplanet Name : Wendelstein-2 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.0000 (Rjup) 11.2090 (Rearth)
Mass (Mjup / Me): 0.7300 (Mjup) 232.0947 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0234 (AU) 0.0234 (AU Est.)
Eccentricity : 0.1930
Orbital Period(Yrs) 0.0048
Orbital Period(Observed/Estimated) 1.75 (Days Obs.) 1.53 (Days Est.)
Surface Gravity (G Earth) 1.8473
Star Radiation at Atmospheric Boundary: 462820.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1164.1 (K)
Blackbody T 0.3(K) 1093.2 (K)
Blackbody T 0.7(K) 884.5 (K)
Tidally Locked Blackbody T 0.1(K) 1384.4 (K)
Tidally Locked Blackbody T 0.3(K) 1300.1 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Wendelstein-2
Alternate Name :
Star Distance(LY) : 1875.4
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.7 (Msun Measured) 0.6 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 4667 (K)
Spectral type : K4
UV portion[%]: 2.1
Visible portion[%]: 33.7
IR portion[%]: 64.2
Metalicity : 0.0
Absolute Magnitude: 8.2
Apparent Magnitude: 17.0
Right Ascension(RA) 297.7917
Declination (DEC) 16.9125
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
Wendelstein-2 b
Wendelstein-2 b

  • Wendelstein-2 b is an exoplanet orbiting the star Wendelstein-2, located about 1875.4 light-years (575.0 pc) away from Solar System. Its discovery was publicly announced on 2020.
  • The host star Wendelstein-2 has apparent magnitude of 17.0, with absolute magnitude of 8.2.
  • It is 0.7 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4667 with its spectral types of K4
  • In this planetary system, the extrasolar planet Wendelstein-2 b orbits around the star Wendelstein-2 every 1.8 days with its orbital distance of 0.02 AU ( 3500590.2 km)
  • (Projected orbit of Wendelstein-2 b around its host star Wendelstein-2)


  • The Star Wendelstein-2 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.311 AU ( 46588384.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.430 AU ( 64397322.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.656 AU ( 98127267.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.965 AU ( 144398573.4 km)
  • Radiation at Planetary Boundary of Wendelstein-2 b : 462820.06 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Wendelstein-2)



  • Kopparapu Recent Venus for Star Wendelstein-2 distance : 0.342 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Wendelstein-2 distance : 0.433 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Wendelstein-2 distance : 0.418 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Wendelstein-2 distance : 0.459 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Wendelstein-2 distance : 0.795 AU
  • Kopparapu Outer Boundary for Early Mars for Star Wendelstein-2 distance : 0.839 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Wendelstein-2)



  • Original Kopparapu Recent Venus for Star Wendelstein-2 distance : 0.337 AU
  • Original Kopparapu Runaway Greenhouse for Star Wendelstein-2 distance : 0.447 AU
  • Original Kopparapu Moist Greenhouse for Star Wendelstein-2 distance : 0.446 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Wendelstein-2 distance : 0.809 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Wendelstein-2 distance : 0.841 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Wendelstein-2)



    (Position in Stellar Map of star Wendelstein-2 and its Exoplanet Wendelstein-2 b)



    (Zoomed position in Stellar Map of star Wendelstein-2 and its Exoplanet Wendelstein-2 b (zoom level 3))

    (Synthetic Spectrum of star Wendelstein-2*)
    *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