Imaginary Picture of ZTF J0038+2030 b

Display orbital revolution of ZTF J0038+2030 b around the hoststar ZTF J0038+2030
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Exoplanet Name : ZTF J0038+2030 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.7830 (Rjup) 8.7766 (Rearth)
Mass (Mjup / Me): 59.3000 (Mjup) 18853.7234 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0092 (AU) 0.0092 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0012
Orbital Period(Observed/Estimated) 0.43 (Days Obs.) 0.45 (Days Est.)
Surface Gravity (G Earth) 244.7597
Star Radiation at Atmospheric Boundary: 350.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 193.2 (K)
Blackbody T 0.3(K) 181.4 (K)
Blackbody T 0.7(K) 146.8 (K)
Tidally Locked Blackbody T 0.1(K) 229.7 (K)
Tidally Locked Blackbody T 0.3(K) 215.7 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection : Radial Velocity
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : ZTF J0038+2030
Alternate Name :
Star Distance(LY) : 451.1
Stellar Radius(Rsun) : 0.0 (Rsun Measured)
Stellar Mass(Msun) : 0.5 (Msun Measured) 0.6 (Msun Estimated)
Star Age : 8.0 (GY)
Temperature : 3300 (K)
Spectral type : M9
UV portion[%]: 0.2
Visible portion[%]: 11.2
IR portion[%]: 88.6
Metalicity : 0.0
Absolute Magnitude: 11.3
Apparent Magnitude: 17.0
Right Ascension(RA) 9.7292
Declination (DEC) 20.5072
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=ZTF+J0038%2B2030&submit=SIMBAD+search
Open Exoplanet Database Link
ZTF J0038+2030 b
ZTF J0038+2030 b

  • ZTF J0038+2030 b is an exoplanet orbiting the star ZTF J0038+2030, located about 451.1 light-years (138.3 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star ZTF J0038+2030 has apparent magnitude of 17.0, with absolute magnitude of 11.3.
  • It is 0.5 times more massive and 0.0 times bigger compared with our Sun. The surface temperature is 3300 with its spectral types of M9
  • In this planetary system, the extrasolar planet ZTF J0038+2030 b orbits around the star ZTF J0038+2030 every 0.4 days with its orbital distance of 0.01 AU ( 1376300.4 km)
  • (Projected orbit of ZTF J0038+2030 b around its host star ZTF J0038+2030)


  • The Star ZTF J0038+2030 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.003 AU ( 504334.0 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.005 AU ( 697121.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.007 AU ( 1062258.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.010 AU ( 1563160.1 km)
  • Radiation at Planetary Boundary of ZTF J0038+2030 b : 350.87 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star ZTF J0038+2030)



  • Kopparapu Recent Venus for Star ZTF J0038+2030 distance : 0.004 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star ZTF J0038+2030 distance : 0.005 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star ZTF J0038+2030 distance : 0.005 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star ZTF J0038+2030 distance : 0.005 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star ZTF J0038+2030 distance : 0.009 AU
  • Kopparapu Outer Boundary for Early Mars for Star ZTF J0038+2030 distance : 0.010 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star ZTF J0038+2030)



  • Original Kopparapu Recent Venus for Star ZTF J0038+2030 distance : 0.004 AU
  • Original Kopparapu Runaway Greenhouse for Star ZTF J0038+2030 distance : 0.005 AU
  • Original Kopparapu Moist Greenhouse for Star ZTF J0038+2030 distance : 0.005 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star ZTF J0038+2030 distance : 0.010 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star ZTF J0038+2030 distance : 0.010 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star ZTF J0038+2030)



    (Position in Stellar Map of star ZTF J0038+2030 and its Exoplanet ZTF J0038+2030 b)



    (Zoomed position in Stellar Map of star ZTF J0038+2030 and its Exoplanet ZTF J0038+2030 b (zoom level 3))

    (Synthetic Spectrum of star ZTF J0038+2030*)
    *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