Imaginary Picture of KOI-771 b

Display orbital revolution of KOI-771 b around the hoststar KOI-771
/
Exoplanet Name : KOI-771 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 1.2300 (Rjup) 13.7871 (Rearth)
Mass (Mjup / Me): 1.8241 (Mjup) 579.9447 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 1.4740 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 1.8361
Orbital Period(Observed/Estimated) 670.65 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 3.0510
Star Radiation at Atmospheric Boundary: 463.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 207.0 (K)
Blackbody T 0.3(K) 194.4 (K)
Blackbody T 0.7(K) 157.3 (K)
Tidally Locked Blackbody T 0.1(K) 246.2 (K)
Tidally Locked Blackbody T 0.3(K) 231.2 (K)
Size Class: Super-Jupiter-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 : KOI-771
Alternate Name :
Star Distance(LY) : 0.0
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5520 (K)
Spectral type : G7
UV portion[%]: 7.0
Visible portion[%]: 43.4
IR portion[%]: 49.7
Metalicity : 0.5
Absolute Magnitude: 25.0
Apparent Magnitude: 15.2
Right Ascension(RA) 296.6986
Declination (DEC) 49.3164
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title 0
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=KOI-771+&submit=SIMBAD+search
Open Exoplanet Database Link 0
KOI-771 b
KOI-771 b

  • KOI-771 b is an exoplanet orbiting the star KOI-771. Its discovery was publicly announced on 2015.
  • The host star KOI-771 has apparent magnitude of 15.2, with absolute magnitude of 25.0.
  • It is 0.9 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5520 with its spectral types of G7
  • In this planetary system, the extrasolar planet KOI-771 b orbits around the star KOI-771 every 670.7 days with its orbital distance of 1.47 AU ( 220514509.0 km)
  • (Projected orbit of KOI-771 b around its host star KOI-771)


  • The Star KOI-771 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.620 AU ( 92824821.2 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.858 AU ( 128308161.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.307 AU ( 195513242.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.923 AU ( 287706301.6 km)
  • Radiation at Planetary Boundary of KOI-771 b : 463.01 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star KOI-771)



  • Kopparapu Recent Venus for Star KOI-771 distance : 0.653 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star KOI-771 distance : 0.827 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star KOI-771 distance : 0.799 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star KOI-771 distance : 0.876 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star KOI-771 distance : 1.471 AU
  • Kopparapu Outer Boundary for Early Mars for Star KOI-771 distance : 1.552 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star KOI-771)



  • Original Kopparapu Recent Venus for Star KOI-771 distance : 0.651 AU
  • Original Kopparapu Runaway Greenhouse for Star KOI-771 distance : 0.850 AU
  • Original Kopparapu Moist Greenhouse for Star KOI-771 distance : 0.861 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star KOI-771 distance : 1.497 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star KOI-771 distance : 1.556 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star KOI-771)



    (Position in Stellar Map of star KOI-771 and its Exoplanet KOI-771 b)



    (Zoomed position in Stellar Map of star KOI-771 and its Exoplanet KOI-771 b (zoom level 3))

    (Synthetic Spectrum of star KOI-771*)
    *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