Imaginary Picture of Kepler-1784 b

Display orbital revolution of Kepler-1784 b around the hoststar Kepler-1784
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Exoplanet Name : Kepler-1784 b
Alternate Name : "KOI-2023 b, KOI-2023.01"
Status : Confirmed
Radius (Rjup / Re): 0.2497 (Rjup) 2.7993 (Rearth)
Mass (Mjup / Me): 0.0216 (Mjup) 6.8718 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1072 (AU) 0.1072 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0372
Orbital Period(Observed/Estimated) 13.59 (Days Obs.) 13.08 (Days Est.)
Surface Gravity (G Earth) 0.8769
Star Radiation at Atmospheric Boundary: 89475.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 771.9 (K)
Blackbody T 0.3(K) 724.9 (K)
Blackbody T 0.7(K) 586.5 (K)
Tidally Locked Blackbody T 0.1(K) 918.0 (K)
Tidally Locked Blackbody T 0.3(K) 862.1 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-1784
Alternate Name : "8578780, KOI-2023"
Star Distance(LY) : 2880.1
Stellar Radius(Rsun) : 1.0 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 13.8 (GY)
Temperature : 5475 (K)
Spectral type : G6V
UV portion[%]: 6.8
Visible portion[%]: 43.0
IR portion[%]: 50.2
Metalicity : 0.1
Absolute Magnitude: 5.7
Apparent Magnitude: 15.4
Right Ascension(RA) 297.9542
Declination (DEC) 44.6675
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
Kepler-1784 b
Kepler-1784 b

  • Kepler-1784 b is an exoplanet orbiting the star Kepler-1784, located about 2880.1 light-years (883.0 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1784 has apparent magnitude of 15.4, with absolute magnitude of 5.7.
  • It is 1.0 times more massive and 1.0 times bigger compared with our Sun. The surface temperature is 5475 with its spectral types of G6V
  • In this planetary system, the extrasolar planet Kepler-1784 b orbits around the star Kepler-1784 every 13.6 days with its orbital distance of 0.11 AU ( 16036891.7 km)
  • (Projected orbit of Kepler-1784 b around its host star Kepler-1784)


  • The Star Kepler-1784 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.627 AU ( 93843346.4 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.867 AU ( 129716028.9 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.321 AU ( 197658521.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.944 AU ( 290863173.8 km)
  • Radiation at Planetary Boundary of Kepler-1784 b : 89475.88 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1784)



  • Kopparapu Recent Venus for Star Kepler-1784 distance : 0.662 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1784 distance : 0.838 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1784 distance : 0.809 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1784 distance : 0.888 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1784 distance : 1.493 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1784 distance : 1.575 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1784)



  • Original Kopparapu Recent Venus for Star Kepler-1784 distance : 0.659 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1784 distance : 0.862 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1784 distance : 0.872 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1784 distance : 1.519 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1784 distance : 1.580 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1784)



    (Position in Stellar Map of star Kepler-1784 and its Exoplanet Kepler-1784 b)



    (Zoomed position in Stellar Map of star Kepler-1784 and its Exoplanet Kepler-1784 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1784*)
    *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