Kepler-445d

Kepler-445d

Exoplanet		List of exoplanets Size comparison Earth Kepler-445d
Parent star
Star		Kepler-445
Right ascension	(α)	19h54m56.65s
Declination	(δ)	+46d29m54.8s
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)	1.25 R⊕
Temperature	(T)	305 K (32 °C; 89 °F) [1]
Orbital elements
Semi-major axis	(a)	0.047121[2] AU
Eccentricity	(e)	0
Orbital period	(P)	8.15275±0.00040 d
Inclination	(i)	89.61°
Discovery information
Discovery date		2015
Discoverer(s)
Discovery method		Transit
Discovery site		Kepler Space Observatory
Discovery status		Confirmed

Kepler-445d is an exoplanet orbiting the red dwarf Kepler-445 every 8 days in the circumstellar habitable zone.^[3] It has a surface temperature of 305 K (32 °C; 89 °F) making it suitable for life.^[4] PHL has currently not assessed the planet for habitability.^[5]

Physical characteristics

Kepler-445d is only slightly larger than the Earth, with a radius of 1.25 R⊕. According to PHL's calculators, the mass required for the planet to have the same density as the Earth is around 2 M⊕.^[6]

References

1. http://exoplanetarchive.ipac.caltech.edu/cgi-bin/TblView/nph-tblView?app=ExoTbls&config=cumulative&constraint=koi_pdisposition+like+%27CANDIDATE%27
2. http://phl.upr.edu/projects/habitable-exoplanets-catalog/calculators
3. http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=Kepler-445+d&type=CONFIRMED_PLANET
4. http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=Kepler-445+d&type=CONFIRMED_PLANET
5. http://phl.upr.edu/projects/habitable-exoplanets-catalog
6. PHL's calculators

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