Imaginary Picture of Kepler-561 b

Display orbital revolution of Kepler-561 b around the hoststar Kepler-561
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Exoplanet Name : Kepler-561 b
Alternate Name : "2MASS J19345930+4506259 b, K00464.01, KIC 8890783 b, KOI-464 b, KOI-464.01, WISE J193459.30+450625.9 b"
Status : Confirmed
Radius (Rjup / Re): 0.6210 (Rjup) 6.9608 (Rearth)
Mass (Mjup / Me): 0.2347 (Mjup) 74.6356 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.2905 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.1598
Orbital Period(Observed/Estimated) 58.36 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 1.5404
Star Radiation at Atmospheric Boundary: 10420.9 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 450.9 (K)
Blackbody T 0.3(K) 423.5 (K)
Blackbody T 0.7(K) 342.6 (K)
Tidally Locked Blackbody T 0.1(K) 536.3 (K)
Tidally Locked Blackbody T 0.3(K) 503.6 (K)
Size Class: sub-Jupiter-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-561
Alternate Name : "2MASS J19345930+4506259, KIC 8890783, KOI-464, WISE J193459.30+450625.9"
Star Distance(LY) : 2026.2
Stellar Radius(Rsun) : 0.9 (Rsun Measured)
Stellar Mass(Msun) : 1.0 (Msun Measured) 1.0 (Msun Estimated)
Star Age : 4.3 (GY)
Temperature : 5479 (K)
Spectral type : G5
UV portion[%]: 6.8
Visible portion[%]: 43.1
IR portion[%]: 50.1
Metalicity : 0.0
Absolute Magnitude: 4.1
Apparent Magnitude: 13.1
Right Ascension(RA) 293.7471
Declination (DEC) 45.1072
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 483 LIKELY FALSE POSITIVES
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-561+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/Kepler-561%20b/
Kepler-561 b
Kepler-561 b

  • Kepler-561 b is an exoplanet orbiting the star Kepler-561, located about 2026.2 light-years (621.2 pc) away from Solar System. Its discovery was publicly announced on 2016.
  • The host star Kepler-561 has apparent magnitude of 13.1, with absolute magnitude of 4.1.
  • It is 1.0 times more massive and 0.9 times bigger compared with our Sun. The surface temperature is 5479 with its spectral types of G5
  • In this planetary system, the extrasolar planet Kepler-561 b orbits around the star Kepler-561 every 58.4 days with its orbital distance of 0.29 AU ( 43455294.4 km)
  • (Projected orbit of Kepler-561 b around its host star Kepler-561)


  • The Star Kepler-561 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.580 AU ( 86781183.3 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.802 AU ( 119954274.0 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.222 AU ( 182783767.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.798 AU ( 268974321.4 km)
  • Radiation at Planetary Boundary of Kepler-561 b : 10420.90 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star Kepler-561)



  • Kopparapu Recent Venus for Star Kepler-561 distance : 0.612 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star Kepler-561 distance : 0.775 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star Kepler-561 distance : 0.748 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star Kepler-561 distance : 0.821 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-561 distance : 1.380 AU
  • Kopparapu Outer Boundary for Early Mars for Star Kepler-561 distance : 1.456 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star Kepler-561)



  • Original Kopparapu Recent Venus for Star Kepler-561 distance : 0.609 AU
  • Original Kopparapu Runaway Greenhouse for Star Kepler-561 distance : 0.797 AU
  • Original Kopparapu Moist Greenhouse for Star Kepler-561 distance : 0.806 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star Kepler-561 distance : 1.404 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star Kepler-561 distance : 1.460 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star Kepler-561)



    (Position in Stellar Map of star Kepler-561 and its Exoplanet Kepler-561 b)



    (Zoomed position in Stellar Map of star Kepler-561 and its Exoplanet Kepler-561 b (zoom level 3))

    (Synthetic Spectrum of star Kepler-561*)
    *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