Imaginary Picture of Kepler-1874 Ab

Display orbital revolution of Kepler-1874 Ab around the hoststar Kepler-1874 A
/
Exoplanet Name : Kepler-1874 Ab
Alternate Name : "KOI-2760 b, KOI-2760.01"
Status : Confirmed
Radius (Rjup / Re): 0.1973 (Rjup) 2.2110 (Rearth)
Mass (Mjup / Me): 0.0174 (Mjup) 5.5179 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.2633 (AU) 0.2633 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.1549
Orbital Period(Observed/Estimated) 56.57 (Days Obs.) 56.68 (Days Est.)
Surface Gravity (G Earth) 1.1288
Star Radiation at Atmospheric Boundary: 5188.8 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 378.8 (K)
Blackbody T 0.3(K) 355.7 (K)
Blackbody T 0.7(K) 287.8 (K)
Tidally Locked Blackbody T 0.1(K) 450.5 (K)
Tidally Locked Blackbody T 0.3(K) 423.0 (K)
Size Class: sub-Neptune-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection : Primary Transit
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : Kepler-1874 A
Alternate Name : "KIC 7877978, KOI-2760"
Star Distance(LY) : 1330.7
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 13.8 (GY)
Temperature : 4701 (K)
Spectral type : K4V
UV portion[%]: 2.2
Visible portion[%]: 34.2
IR portion[%]: 63.6
Metalicity : 0.2
Absolute Magnitude: 7.3
Apparent Magnitude: 15.3
Right Ascension(RA) 286.3718
Declination (DEC) 43.6919
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-1874 Ab
Kepler-1874 Ab

  • Kepler-1874 Ab is an exoplanet orbiting the star Kepler-1874 A, located about 1330.7 light-years (408.0 pc) away from Solar System. Its discovery was publicly announced on 2017.
  • The host star Kepler-1874 A has apparent magnitude of 15.3, with absolute magnitude of 7.3.
  • It is 0.8 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 4701 with its spectral types of K4V
  • In this planetary system, the extrasolar planet Kepler-1874 Ab orbits around the star Kepler-1874 A every 56.6 days with its orbital distance of 0.26 AU ( 39389119.4 km)
  • (Projected orbit of Kepler-1874 Ab around its host star Kepler-1874 A)


  • The Star Kepler-1874 A 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.371 AU ( 55506049.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.513 AU ( 76723865.6 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.781 AU ( 116910192.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.150 AU ( 172038469.5 km)
  • Radiation at Planetary Boundary of Kepler-1874 Ab : 5188.81 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1874 A)



  • Kopparapu Recent Venus for Star Kepler-1874 A distance : 0.407 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1874 A distance : 0.515 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1874 A distance : 0.497 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1874 A distance : 0.546 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1874 A distance : 0.945 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1874 A distance : 0.997 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1874 A)



  • Original Kopparapu Recent Venus for Star Kepler-1874 A distance : 0.402 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1874 A distance : 0.531 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1874 A distance : 0.531 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1874 A distance : 0.961 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1874 A distance : 0.999 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1874 A)



    (Position in Stellar Map of star Kepler-1874 A and its Exoplanet Kepler-1874 Ab)



    (Zoomed position in Stellar Map of star Kepler-1874 A and its Exoplanet Kepler-1874 Ab (zoom level 3))

    (Synthetic Spectrum of star Kepler-1874 A*)
    *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