Imaginary Picture of Kepler-1676 b

Display orbital revolution of Kepler-1676 b around the hoststar Kepler-1676
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Exoplanet Name : Kepler-1676 b
Alternate Name : "2MASS J19085682+4334019 b, K01943.01, KIC 7810483 b, KOI-1943 b, KOI-1943.01, WISE J190856.82+433401.9 b"
Status : Confirmed
Radius (Rjup / Re): 0.3010 (Rjup) 3.3739 (Rearth)
Mass (Mjup / Me): 0.0257 (Mjup) 8.1748 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.1931 (AU) 0.1931 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0819
Orbital Period(Observed/Estimated) 29.92 (Days Obs.) 29.96 (Days Est.)
Surface Gravity (G Earth) 0.7181
Star Radiation at Atmospheric Boundary: 30715.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 590.9 (K)
Blackbody T 0.3(K) 554.9 (K)
Blackbody T 0.7(K) 449.0 (K)
Tidally Locked Blackbody T 0.1(K) 702.6 (K)
Tidally Locked Blackbody T 0.3(K) 659.9 (K)
Size Class: 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-1676
Alternate Name : "7810483, 2MASS J19085682+4334019, KIC 7810483, KOI-1943, WISE J190856.82+433401.9"
Star Distance(LY) : 0.0
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5893 (K)
Spectral type : G1
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : -0.1
Absolute Magnitude: 25.0
Apparent Magnitude: 13.2
Right Ascension(RA) 287.2368
Declination (DEC) 43.5672
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors
Discovery Paper - Title
Discovery Paper - Journal
Discovery Paper - URL
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-1676+&submit=SIMBAD+search
Open Exoplanet Database Link
Kepler-1676 b
Kepler-1676 b

  • Kepler-1676 b is an exoplanet orbiting the star Kepler-1676. Its discovery was publicly announced on 2020.
  • The host star Kepler-1676 has apparent magnitude of 13.2, with absolute magnitude of 25.0.
  • It is 1.1 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5893 with its spectral types of G1
  • In this planetary system, the extrasolar planet Kepler-1676 b orbits around the star Kepler-1676 every 29.9 days with its orbital distance of 0.19 AU ( 28887348.8 km)
  • (Projected orbit of Kepler-1676 b around its host star Kepler-1676)


  • The Star Kepler-1676 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.662 AU ( 99040692.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.915 AU ( 136900119.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.394 AU ( 208605485.4 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 2.052 AU ( 306972110.2 km)
  • Radiation at Planetary Boundary of Kepler-1676 b : 30715.06 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1676)



  • Kopparapu Recent Venus for Star Kepler-1676 distance : 0.681 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1676 distance : 0.863 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1676 distance : 0.833 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1676 distance : 0.914 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1676 distance : 1.519 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1676 distance : 1.603 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1676)



  • Original Kopparapu Recent Venus for Star Kepler-1676 distance : 0.684 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1676 distance : 0.886 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1676 distance : 0.905 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1676 distance : 1.546 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1676 distance : 1.608 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1676)



    (Position in Stellar Map of star Kepler-1676 and its Exoplanet Kepler-1676 b)



    (Zoomed position in Stellar Map of star Kepler-1676 and its Exoplanet Kepler-1676 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1676*)
    *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