Imaginary Picture of Ross 19 b

Display orbital revolution of Ross 19 b around the hoststar Ross 19
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Exoplanet Name : Ross 19 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 27.0000 (Mjup) 8584.3260 (Mearth)
Semi Major Axis / Orbital Distance Calculated 9900.0000 (AU) 9900.0000 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0000
Orbital Period(Observed/Estimated) 0.00 (Days Obs.) 597982853.48 (Days Est.)
Surface Gravity (G Earth) 82.9017
Star Radiation at Atmospheric Boundary: 0.0 (W/m2)
Measured Temperature (K) 500.0 (K)
Blackbody T 0.1(K) 1.0 (K)
Blackbody T 0.3(K) 0.9 (K)
Blackbody T 0.7(K) 0.7 (K)
Tidally Locked Blackbody T 0.1(K) 1.1 (K)
Tidally Locked Blackbody T 0.3(K) 1.1 (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 : Ross 19
Alternate Name :
Star Distance(LY) : 56.9
Stellar Radius(Rsun) : 0.3 (Rsun Measured)
Stellar Mass(Msun) : 0.4 (Msun Measured) 0.0 (Msun Estimated)
Star Age : 7.2 (GY)
Temperature : 3481 (K)
Spectral type : M3.5V
UV portion[%]: 0.2
Visible portion[%]: 10.4
IR portion[%]: 89.4
Metalicity : -0.4
Absolute Magnitude: 10.8
Apparent Magnitude: 12.0
Right Ascension(RA) 34.7625
Declination (DEC) 35.3553
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK https://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Ross+19&submit=SIMBAD+search
Open Exoplanet Database Link
Ross 19 b
Ross 19 b

  • Ross 19 b is an exoplanet orbiting the star Ross 19, located about 56.9 light-years (17.4 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star Ross 19 has apparent magnitude of 12.0, with absolute magnitude of 10.8.
  • It is 0.4 times more massive and 0.3 times bigger compared with our Sun. The surface temperature is 3481 with its spectral types of M3.5V
  • (Projected orbit of Ross 19 b around its host star Ross 19)


  • The Star Ross 19 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.089 AU ( 13273420.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.123 AU ( 18347336.2 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.187 AU ( 27957280.0 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.275 AU ( 41140362.3 km)
  • Radiation at Planetary Boundary of Ross 19 b : 0.00 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Ross 19)



  • Kopparapu Recent Venus for Star Ross 19 distance : 0.100 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Ross 19 distance : 0.127 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Ross 19 distance : 0.123 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Ross 19 distance : 0.135 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Ross 19 distance : 0.247 AU
  • Kopparapu Outer Boundary for Early Mars for Star Ross 19 distance : 0.261 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Ross 19)



  • Original Kopparapu Recent Venus for Star Ross 19 distance : 0.099 AU
  • Original Kopparapu Runaway Greenhouse for Star Ross 19 distance : 0.131 AU
  • Original Kopparapu Moist Greenhouse for Star Ross 19 distance : 0.132 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Ross 19 distance : 0.251 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Ross 19 distance : 0.261 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Ross 19)



    (Position in Stellar Map of star Ross 19 and its Exoplanet Ross 19 b)



    (Zoomed position in Stellar Map of star Ross 19 and its Exoplanet Ross 19 b (zoom level 3))

    (Synthetic Spectrum of star Ross 19*)
    *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