Imaginary Picture of bet And b

Display orbital revolution of bet And b around the hoststar bet And
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Exoplanet Name : bet And b
Alternate Name : "Mirach b, 43 And b, HD 6860 b"
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 28.2600 (Mjup) 8984.9279 (Mearth)
Semi Major Axis / Orbital Distance Calculated 2.0300 (AU) 2.0300 (AU Est.)
Eccentricity : 0.2800
Orbital Period(Yrs) 1.8175
Orbital Period(Observed/Estimated) 663.87 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 86.7704
Star Radiation at Atmospheric Boundary: 464182.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1165.0 (K)
Blackbody T 0.3(K) 1094.0 (K)
Blackbody T 0.7(K) 885.2 (K)
Tidally Locked Blackbody T 0.1(K) 1385.4 (K)
Tidally Locked Blackbody T 0.3(K) 1301.0 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection : Radial Velocity
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : bet And
Alternate Name : "Mirach, 43 And, HD 6860"
Star Distance(LY) : 197.2
Stellar Radius(Rsun) : 86.4 (Rsun Measured)
Stellar Mass(Msun) : 0.0 (Msun Measured) 2.5 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 3802 (K)
Spectral type : M0III
UV portion[%]: 0.3
Visible portion[%]: 13.8
IR portion[%]: 85.9
Metalicity : -0.0
Absolute Magnitude: -1.9
Apparent Magnitude: 2.0
Right Ascension(RA) 17.4333
Declination (DEC) 35.6206
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
bet And b
bet And b

  • bet And b is an exoplanet orbiting the star bet And, located about 197.2 light-years (60.5 pc) away from Solar System. Its discovery was publicly announced on 2023.
  • The host star bet And has apparent magnitude of 2.0, with absolute magnitude of -1.9.
  • In this planetary system, the extrasolar planet bet And b orbits around the star bet And every 663.9 days with its orbital distance of 2.03 AU ( 303683677.5 km)
  • (Projected orbit of bet And b around its host star bet And)


  • The Star bet And 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 27.056 AU ( 4047585952.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 37.399 AU ( 5594821547.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 56.988 AU ( 8525269906.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 83.860 AU ( 12545308135.8 km)
  • Radiation at Planetary Boundary of bet And b : 464182.40 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star bet And)



  • Kopparapu Recent Venus for Star bet And distance : 30.432 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star bet And distance : 38.513 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star bet And distance : 37.194 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star bet And distance : 40.898 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star bet And distance : 73.817 AU
  • Kopparapu Outer Boundary for Early Mars for Star bet And distance : 77.878 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star bet And)



  • Original Kopparapu Recent Venus for Star bet And distance : 30.101 AU
  • Original Kopparapu Runaway Greenhouse for Star bet And distance : 39.847 AU
  • Original Kopparapu Moist Greenhouse for Star bet And distance : 39.829 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star bet And distance : 74.995 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star bet And distance : 77.993 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star bet And)



    (Position in Stellar Map of star bet And and its Exoplanet bet And b)



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

    (Synthetic Spectrum of star bet And*)
    *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