Kepler-445c

Kepler-445c
Exoplanet List of exoplanets
Size comparison
Neptune Kepler-445c
Parent star
Star Kepler-445
Constellation Cygnus[1]
Right ascension (α) 19h 54m 56.65s
Declination (δ) +46° 29 54.8
Mass (m) 0.18±0.04 M
Radius (r) 0.21±0.03 R
Temperature (T) 3157±60 K
Metallicity [Fe/H] 0.27±0.13
Physical characteristics
Radius(r)2.51 R
Temperature (T) 362 K (89 °C; 192 °F) [2]
Orbital elements
Semi-major axis(a) 0.033427[3] AU
Eccentricity (e) 0
Orbital period(P) 4.871229±0.000011 d
Inclination (i) 89.91°
Discovery information
Discovery date 2015
Discoverer(s)
Discovery method Transit
Discovery site Kepler Space Observatory
Discovery status Confirmed[4]

Kepler-445c is an exoplanet orbiting the Red dwarf star Kepler-445 every 5 days in the inner edge of the circumstellar habitable zone.[5] PHL has currently not assessed the planet for Habitability.[6]

Physical Features

Size comparison
Earth Kepler-445c

With a radius of 2.5R⊕ it is likely a Water world or even a Mini-Neptune if gaseous. Due to its high radius it would have to have a mass of 15.9M⊕ According to the PHL exoplanet density calculator to have a density similar of that of the Earth.

References

  1. Roman, Nancy G. (1987). "Identification of a Constellation From a Position". Publications of the Astronomical Society of the Pacific. 99 (617): 695–699. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Vizier query form
  2. http://exoplanetarchive.ipac.caltech.edu/cgi-bin/TblView/nph-tblView?app=ExoTbls&config=cumulative&constraint=koi_pdisposition+like+%27CANDIDATE%27
  3. http://phl.upr.edu/projects/habitable-exoplanets-catalog/calculators
  4. Muirhead, Philip S.; et al. (2015). "Kepler-445,kepler-446 and the Occurrence of Compact Multiples Orbiting Mid-M Dwarf Stars". The Astrophysical Journal. 801 (1). 18. arXiv:1501.01305. Bibcode:2015ApJ...801...18M. doi:10.1088/0004-637X/801/1/18.
  5. http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=Kepler-445+c&type=CONFIRMED_PLANET
  6. http://phl.upr.edu/projects/habitable-exoplanets-catalog


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