From Wikipedia, the free encyclopedia
Jump to: navigation, search
Extrasolar planet List of extrasolar planets
Parent star
Star KOI-1686 (KIC 6149553)[1][2][3]
Right ascension (α) 19h 54m 01.743s[1]
Declination (δ) +41° 28′ 44.58″[1]
Distance 1033.8[4] ly
Mass (m) 0.54[2] M
Radius (r) 0.52;[2] 0.494[1] R
Temperature (T) 3665[2] K
Metallicity [Fe/H] 0.461[2]
Orbital elements
Semimajor axis (a) 0.231[2] AU
Eccentricity (e) 0[2]
Orbital period (P) 56.8672±0.0021[2] d
Inclination (i) 89.38[2]°
Physical characteristics
Radius (r) 1.33±0.47[2] R
Temperature (T) 246 K (−27 °C; −17 °F)[4]
Discovery information
Discovery date 2011
Discoverer(s) Kepler Team
Discovery method Transit (Kepler Mission Method)
Discovery site Kepler Space Observatory
Discovery status KOI False Positive[5]
Database references
Extrasolar Planets
Exoplanet Archive data
Open Exoplanet Catalogue data

KOI-1686.01[2] is a Kepler object of interest (KOI) false positive,[5] approximately 1033.8 light years from Earth.

KOI-1686.01 would have been super-Earth with a radius 1.33 times that of Earth. KOI-1686.01 would have orbited the dim KOI-1686,[2] within its habitable zone,[4] a zone where liquid water can exist on the surface of a planet. KOI-1686.01 would have had an Earth Similarity Index (ESI) of 0.89,[4] making it the most habitable KOI.[6]

The host star KOI-1686 (KIC 6149553, 2MASS J19540173+4128445) is a somewhat cooler star than the Sun.[2]

Comparison to Earth[edit]

Name ESI SPH HZD HZC HZA pClass hClass Distance (ly) Status Year of
0N/A !Earth 1.00 0.72 −0.50 −0.31 −0.52 warm terran mesoplanet 0 non-exoplanet prehistoric
1 KOI-1686.01 0.89 0.42 −0.63 −0.16 −0.13 warm superterran mesoplanet 1033.8 KOI False Positive[7] 2011

See also[edit]


External links[edit]