Imaginary Picture of ZTFJ1637+49 b

Display orbital revolution of ZTFJ1637+49 b around the hoststar ZTFJ1637+49
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Exoplanet Name : ZTFJ1637+49 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.6800 (Rjup) 7.6221 (Rearth)
Mass (Mjup / Me): 23.0000 (Mjup) 7312.5740 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0023 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0001
Orbital Period(Observed/Estimated) 0.04 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 125.8690
Star Radiation at Atmospheric Boundary: 290600.2 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 1036.3 (K)
Blackbody T 0.3(K) 973.2 (K)
Blackbody T 0.7(K) 787.4 (K)
Tidally Locked Blackbody T 0.1(K) 1232.3 (K)
Tidally Locked Blackbody T 0.3(K) 1157.3 (K)
Size Class: sub-Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Theoretical
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : ZTFJ1637+49
Alternate Name :
Star Distance(LY) : 675.1
Stellar Radius(Rsun) : 0.0 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 11200 (K)
Spectral type : WD
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.0
Absolute Magnitude: 15.4
Apparent Magnitude: 22.0
Right Ascension(RA) 249.4333
Declination (DEC) 49.2947
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
ZTFJ1637+49 b
ZTFJ1637+49 b

  • ZTFJ1637+49 b is an exoplanet orbiting the star ZTFJ1637+49, located about 675.1 light-years (207.0 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star ZTFJ1637+49 has apparent magnitude of 22.0, with absolute magnitude of 15.4.
  • It is 0.9 times more massive compared with our Sun. The surface temperature is 11200 with its spectral types of WD
  • In this planetary system, the extrasolar planet ZTFJ1637+49 b orbits around the star ZTFJ1637+49 every 0.0 days with its orbital distance of 0.00 AU ( 346943.2 km)
  • (Projected orbit of ZTFJ1637+49 b around its host star ZTFJ1637+49)


  • The Star ZTFJ1637+49 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.024 AU ( 3658783.1 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.034 AU ( 5057394.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.052 AU ( 7706349.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.076 AU ( 11340231.5 km)
  • Radiation at Planetary Boundary of ZTFJ1637+49 b : 290600.22 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star ZTFJ1637+49)



  • Kopparapu Recent Venus for Star ZTFJ1637+49 distance : nan AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star ZTFJ1637+49 distance : nan AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star ZTFJ1637+49 distance : nan AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star ZTFJ1637+49 distance : nan AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star ZTFJ1637+49 distance : nan AU
  • Kopparapu Outer Boundary for Early Mars for Star ZTFJ1637+49 distance : nan AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star ZTFJ1637+49)



  • Original Kopparapu Recent Venus for Star ZTFJ1637+49 distance : 1.526 AU
  • Original Kopparapu Runaway Greenhouse for Star ZTFJ1637+49 distance : nan AU
  • Original Kopparapu Moist Greenhouse for Star ZTFJ1637+49 distance : 2.019 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star ZTFJ1637+49 distance : nan AU
  • Original Kopparapu Outer Boundary for Early Mars for Star ZTFJ1637+49 distance : nan AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star ZTFJ1637+49)



    (Position in Stellar Map of star ZTFJ1637+49 and its Exoplanet ZTFJ1637+49 b)



    (Zoomed position in Stellar Map of star ZTFJ1637+49 and its Exoplanet ZTFJ1637+49 b (zoom level 3))

    (Synthetic Spectrum of star ZTFJ1637+49*)
    *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