Imaginary Picture of Kepler-1641 c

Display orbital revolution of Kepler-1641 c around the hoststar Kepler-1641
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Exoplanet Name : Kepler-1641 c
Alternate Name : "2MASS J19452626+4134283 c, K06145.02, KIC 6221385 c, KOI-6145 c, KOI-6145.02, WISE J194526.26+413428.3 c"
Status : Confirmed
Radius (Rjup / Re): 0.2630 (Rjup) 2.9480 (Rearth)
Mass (Mjup / Me): 0.0227 (Mjup) 7.2106 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.2076 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0894
Orbital Period(Observed/Estimated) 32.66 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.8297
Star Radiation at Atmospheric Boundary: 56911.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 689.4 (K)
Blackbody T 0.3(K) 647.4 (K)
Blackbody T 0.7(K) 523.8 (K)
Tidally Locked Blackbody T 0.1(K) 819.8 (K)
Tidally Locked Blackbody T 0.3(K) 769.9 (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-1641
Alternate Name : "2MASS J19452626+4134283, KIC 6221385, KOI-6145, WISE J194526.26+413428.3"
Star Distance(LY) : 2805.4
Stellar Radius(Rsun) : 1.1 (Rsun Measured)
Stellar Mass(Msun) : 1.1 (Msun Measured) 1.1 (Msun Estimated)
Star Age : 3.0 (GY)
Temperature : 6484 (K)
Spectral type : G0
UV portion[%]: 0.3
Visible portion[%]: 1.5
IR portion[%]: 98.2
Metalicity : -0.0
Absolute Magnitude: 3.5
Apparent Magnitude: 13.2
Right Ascension(RA) 296.3594
Declination (DEC) 41.5745
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors "Timothy D. Morton, Stephen T. Bryson, Jeffrey L. Coughlin, Jason F. Rowe, Ganesh Ravichandran, Erik A. Petigura, Michael R. Haas, and Natalie M. Batalha2"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 428 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-1641&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1641%20c/
Kepler-1641 c
Kepler-1641 c

  • Kepler-1641 c is an exoplanet orbiting the star Kepler-1641, located about 2805.4 light-years (860.2 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1641 has apparent magnitude of 13.2, with absolute magnitude of 3.5.
  • It is 1.1 times more massive and 1.1 times bigger compared with our Sun. The surface temperature is 6484 with its spectral types of G0
  • In this planetary system, the extrasolar planet Kepler-1641 c orbits around the star Kepler-1641 every 32.7 days with its orbital distance of 0.21 AU ( 31063997.3 km)
  • (Projected orbit of Kepler-1641 c around its host star Kepler-1641)


  • The Star Kepler-1641 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.969 AU ( 144972541.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.340 AU ( 200389938.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.041 AU ( 305349919.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.004 AU ( 449335783.5 km)
  • Radiation at Planetary Boundary of Kepler-1641 c : 56911.00 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1641)



  • Kopparapu Recent Venus for Star Kepler-1641 distance : 0.963 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1641 distance : 1.219 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1641 distance : 1.177 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1641 distance : 1.290 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1641 distance : 2.121 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1641 distance : 2.237 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1641)



  • Original Kopparapu Recent Venus for Star Kepler-1641 distance : 0.979 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1641 distance : 1.250 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1641 distance : 1.295 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1641 distance : 2.160 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1641 distance : 2.246 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1641)



    (Position in Stellar Map of star Kepler-1641 and its Exoplanet Kepler-1641 c)



    (Zoomed position in Stellar Map of star Kepler-1641 and its Exoplanet Kepler-1641 c (zoom level 3))

    (Synthetic Spectrum of star Kepler-1641*)
    *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