Imaginary Picture of Kepler-549 b

Display orbital revolution of Kepler-549 b around the hoststar Kepler-549
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Exoplanet Name : Kepler-549 b
Alternate Name : "2MASS J18520546+4715400 b, K00427.02, KIC 10189546 b, KOI-427 b, KOI-427.02"
Status : Confirmed
Radius (Rjup / Re): 0.2290 (Rjup) 2.5669 (Rearth)
Mass (Mjup / Me): 0.0199 (Mjup) 6.3395 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.2300 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.1176
Orbital Period(Observed/Estimated) 42.95 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 0.9622
Star Radiation at Atmospheric Boundary: 12855.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 475.2 (K)
Blackbody T 0.3(K) 446.3 (K)
Blackbody T 0.7(K) 361.1 (K)
Tidally Locked Blackbody T 0.1(K) 565.2 (K)
Tidally Locked Blackbody T 0.3(K) 530.7 (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-549
Alternate Name : "2MASS J18520546+4715400, KIC 10189546, KOI-427"
Star Distance(LY) : 2070.7
Stellar Radius(Rsun) : 0.8 (Rsun Measured)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 4.6 (GY)
Temperature : 5333 (K)
Spectral type : G7
UV portion[%]: 6.2
Visible portion[%]: 42.1
IR portion[%]: 51.8
Metalicity : -0.0
Absolute Magnitude: 4.3
Apparent Magnitude: 13.3
Right Ascension(RA) 283.0228
Declination (DEC) 47.2611
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. Batalha"
Discovery Paper - Title FALSE POSITIVE PROBABILITIES FOR ALL KEPLER OBJECTS OF INTEREST: 1284 NEWLY VALIDATED PLANETS AND 481 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-549%20b/
Kepler-549 b
Kepler-549 b

  • Kepler-549 b is an exoplanet orbiting the star Kepler-549, located about 2070.7 light-years (634.9 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-549 has apparent magnitude of 13.3, with absolute magnitude of 4.3.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5333 with its spectral types of G7
  • In this planetary system, the extrasolar planet Kepler-549 b orbits around the star Kepler-549 every 42.9 days with its orbital distance of 0.23 AU ( 34408467.6 km)
  • (Projected orbit of Kepler-549 b around its host star Kepler-549)


  • The Star Kepler-549 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.510 AU ( 76318814.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.705 AU ( 105492546.4 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.075 AU ( 160747295.2 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.581 AU ( 236546686.8 km)
  • Radiation at Planetary Boundary of Kepler-549 b : 12855.00 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-549)



  • Kopparapu Recent Venus for Star Kepler-549 distance : 0.543 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-549 distance : 0.687 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-549 distance : 0.663 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-549 distance : 0.728 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-549 distance : 1.230 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-549 distance : 1.297 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-549)



  • Original Kopparapu Recent Venus for Star Kepler-549 distance : 0.539 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-549 distance : 0.707 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-549 distance : 0.713 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-549 distance : 1.251 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-549 distance : 1.301 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-549)



    (Position in Stellar Map of star Kepler-549 and its Exoplanet Kepler-549 b)



    (Zoomed position in Stellar Map of star Kepler-549 and its Exoplanet Kepler-549 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-549*)
    *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