Imaginary Picture of ASol e (Noachian Mars)

Display orbital revolution of ASol e (Noachian Mars) around the hoststar Young Sun
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Exoplanet Name : ASol e (Noachian Mars)
Alternate Name : Mars
Status : Confirmed
Radius (Rjup / Re): 0.0475 (Rjup) 0.5325 (Rearth)
Mass (Mjup / Me): 0.0003 (Mjup) 0.1075 (Mearth)
Semi Major Axis / Orbital Distance Calculated 1.5237 (AU) 1.5237 (AU Est.)
Eccentricity : 0.0930
Orbital Period(Yrs) 1.8808
Orbital Period(Observed/Estimated) 686.98 (Days Obs.) 686.95 (Days Est.)
Surface Gravity (G Earth) 0.3791
Star Radiation at Atmospheric Boundary: 442.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 204.7 (K)
Blackbody T 0.3(K) 192.3 (K)
Blackbody T 0.7(K) 155.6 (K)
Tidally Locked Blackbody T 0.1(K) 243.5 (K)
Tidally Locked Blackbody T 0.3(K) 228.7 (K)
Size Class: Mars-size
Mass Class:
Detection Type :
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Young Sun
Alternate Name :
Star Distance(LY) : 0.0
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 0.5 (GY)
Temperature : 5672 (K)
Spectral type : G3
UV portion[%]: 7.5
Visible portion[%]: 44.3
IR portion[%]: 48.2
Metalicity : 0.0
Absolute Magnitude: 25.0
Apparent Magnitude: 22.0
Right Ascension(RA) 0.0000
Declination (DEC) 0.0000
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK
Open Exoplanet Database Link
ASol e (Noachian Mars)
ASol e (Noachian Mars)
  • ASol e (Noachian Mars) is an exoplanet orbiting the star Young Sun.
  • The host star Young Sun has apparent magnitude of 22.0, with absolute magnitude of 25.0.
  • It is 1.0 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5672 with its spectral types of G3
  • In this planetary system, the extrasolar planet ASol e (Noachian Mars) orbits around the star Young Sun every 687.0 days with its orbital distance of 1.52 AU ( 227936635.7 km)
    • (Projected orbit of ASol e (Noachian Mars) around its host star Young Sun)


  • The Star Young Sun 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.627 AU ( 93836773.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.867 AU ( 129706943.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.321 AU ( 197644677.6 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.944 AU ( 290842801.4 km)
  • Radiation at Planetary Boundary of ASol e (Noachian Mars) : 442.85 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Young Sun)



  • Kopparapu Recent Venus for Star Young Sun distance : 0.654 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Young Sun distance : 0.828 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Young Sun distance : 0.800 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Young Sun distance : 0.877 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Young Sun distance : 1.467 AU
  • Kopparapu Outer Boundary for Early Mars for Star Young Sun distance : 1.548 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Young Sun)



  • Original Kopparapu Recent Venus for Star Young Sun distance : 0.654 AU
  • Original Kopparapu Runaway Greenhouse for Star Young Sun distance : 0.852 AU
  • Original Kopparapu Moist Greenhouse for Star Young Sun distance : 0.865 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Young Sun distance : 1.493 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Young Sun distance : 1.553 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Young Sun)



    (Position in Stellar Map of star Young Sun and its Exoplanet ASol e (Noachian Mars))



    (Zoomed position in Stellar Map of star Young Sun and its Exoplanet ASol e (Noachian Mars) (zoom level 3))

    (Synthetic Spectrum of star Young Sun*)
    *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