Imaginary Picture of Kepler-1577 b

Display orbital revolution of Kepler-1577 b around the hoststar Kepler-1577
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Exoplanet Name : Kepler-1577 b
Alternate Name : "2MASS J19314926+4734231 b, K04255.01, KIC 10407482 b, KOI-4255 b, KOI-4255.01, WISE J193149.26+473423.0 b"
Status : Confirmed
Radius (Rjup / Re): 0.1010 (Rjup) 1.1321 (Rearth)
Mass (Mjup / Me): 0.0048 (Mjup) 1.5282 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0615 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0173
Orbital Period(Observed/Estimated) 6.31 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.1924
Star Radiation at Atmospheric Boundary: 90053.4 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 773.2 (K)
Blackbody T 0.3(K) 726.1 (K)
Blackbody T 0.7(K) 587.5 (K)
Tidally Locked Blackbody T 0.1(K) 919.4 (K)
Tidally Locked Blackbody T 0.3(K) 863.5 (K)
Size Class: Earth-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-1577
Alternate Name : "2MASS J19314926+4734231, KIC 10407482, KOI-4255, WISE J193149.26+473423.0"
Star Distance(LY) : 1663.2
Stellar Radius(Rsun) : 0.7 (Rsun Measured)
Stellar Mass(Msun) : 0.8 (Msun Measured) 0.8 (Msun Estimated)
Star Age : 4.3 (GY)
Temperature : 4932 (K)
Spectral type : K3
UV portion[%]: 2.9
Visible portion[%]: 36.4
IR portion[%]: 60.7
Metalicity : 0.0
Absolute Magnitude: 5.0
Apparent Magnitude: 13.5
Right Ascension(RA) 292.9553
Declination (DEC) 47.5731
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-1577+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-1577%20b/
Kepler-1577 b
Kepler-1577 b

  • Kepler-1577 b is an exoplanet orbiting the star Kepler-1577, located about 1663.2 light-years (509.9 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-1577 has apparent magnitude of 13.5, with absolute magnitude of 5.0.
  • It is 0.8 times more massive and 0.7 times bigger compared with our Sun. The surface temperature is 4932 with its spectral types of K3
  • In this planetary system, the extrasolar planet Kepler-1577 b orbits around the star Kepler-1577 every 6.3 days with its orbital distance of 0.06 AU ( 9198447.2 km)
  • (Projected orbit of Kepler-1577 b around its host star Kepler-1577)


  • The Star Kepler-1577 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.361 AU ( 54000131.8 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.499 AU ( 74642294.1 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.760 AU ( 113738337.9 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.119 AU ( 167370946.7 km)
  • Radiation at Planetary Boundary of Kepler-1577 b : 90053.38 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-1577)



  • Kopparapu Recent Venus for Star Kepler-1577 distance : 0.392 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-1577 distance : 0.496 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-1577 distance : 0.479 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-1577 distance : 0.526 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1577 distance : 0.901 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-1577 distance : 0.951 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-1577)



  • Original Kopparapu Recent Venus for Star Kepler-1577 distance : 0.387 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-1577 distance : 0.511 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-1577 distance : 0.513 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-1577 distance : 0.916 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-1577 distance : 0.953 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-1577)



    (Position in Stellar Map of star Kepler-1577 and its Exoplanet Kepler-1577 b)



    (Zoomed position in Stellar Map of star Kepler-1577 and its Exoplanet Kepler-1577 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-1577*)
    *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