Imaginary Picture of MARVELS-19 b

Display orbital revolution of MARVELS-19 b around the hoststar BD+42 3438
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Exoplanet Name : MARVELS-19 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 17.3000 (Mjup) 5500.3274 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.5200 (AU) 0.5200 (AU Est.)
Eccentricity : 0.5300
Orbital Period(Yrs) 0.3346
Orbital Period(Observed/Estimated) 122.20 (Days Obs.) 118.76 (Days Est.)
Surface Gravity (G Earth) 53.1185
Star Radiation at Atmospheric Boundary: 18622.7 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 521.4 (K)
Blackbody T 0.3(K) 489.6 (K)
Blackbody T 0.7(K) 396.2 (K)
Tidally Locked Blackbody T 0.1(K) 620.0 (K)
Tidally Locked Blackbody T 0.3(K) 582.3 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : BD+42 3438
Alternate Name : "TYC 3148-2071-1, 2MASS J19443642+4321240"
Star Distance(LY) : 1580.5
Stellar Radius(Rsun) : 1.6 (Rsun Measured)
Stellar Mass(Msun) : 1.3 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 6270 (K)
Spectral type : F8
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.1
Absolute Magnitude: 1.1
Apparent Magnitude: 9.5
Right Ascension(RA) 296.1518
Declination (DEC) 43.3567
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
MARVELS-19 b
MARVELS-19 b

  • MARVELS-19 b is an exoplanet orbiting the star BD+42 3438, located about 1580.5 light-years (484.6 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star BD+42 3438 has apparent magnitude of 9.5, with absolute magnitude of 1.1.
  • It is 1.3 times more massive and 1.6 times bigger compared with our Sun. The surface temperature is 6270 with its spectral types of F8
  • In this planetary system, the extrasolar planet MARVELS-19 b orbits around the star BD+42 3438 every 122.2 days with its orbital distance of 0.52 AU ( 77790892.8 km)
  • (Projected orbit of MARVELS-19 b around its host star BD+42 3438)


  • The Star BD+42 3438 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.388 AU ( 207673364.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.919 AU ( 287058861.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.924 AU ( 437414178.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 4.303 AU ( 643674125.1 km)
  • Radiation at Planetary Boundary of MARVELS-19 b : 18622.74 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star BD+42 3438)



  • Kopparapu Recent Venus for Star BD+42 3438 distance : 1.396 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star BD+42 3438 distance : 1.769 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star BD+42 3438 distance : 1.708 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star BD+42 3438 distance : 1.872 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star BD+42 3438 distance : 3.088 AU
  • Kopparapu Outer Boundary for Early Mars for Star BD+42 3438 distance : 3.257 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star BD+42 3438)



  • Original Kopparapu Recent Venus for Star BD+42 3438 distance : 1.413 AU
  • Original Kopparapu Runaway Greenhouse for Star BD+42 3438 distance : 1.814 AU
  • Original Kopparapu Moist Greenhouse for Star BD+42 3438 distance : 1.870 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star BD+42 3438 distance : 3.144 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star BD+42 3438 distance : 3.270 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star BD+42 3438)



    (Position in Stellar Map of star BD+42 3438 and its Exoplanet MARVELS-19 b)



    (Zoomed position in Stellar Map of star BD+42 3438 and its Exoplanet MARVELS-19 b (zoom level 3))

    (Synthetic Spectrum of star BD+42 3438*)
    *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