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Extrasolar planet List of extrasolar planets
Parent star
Star Kepler-61 (KOI-1361)
Constellation Cygnus
Right ascension (α) 19h 41m 13s
Declination (δ) +42° 28′ 31″
Apparent magnitude (mV) 15
Mass (m) 0.635 (± 0.037) M
Radius (r) 0.62 R
Temperature (T) 4017 K
Metallicity [Fe/H] 0.03 (± 0.14)
Age Gyr
Physical characteristics
Mass (m) 6.66[1] M
Radius (r) 2.15 R
Temperature (T) 273 K (0°C)
Orbital elements
Semimajor axis (a) 0.26 AU
Eccentricity (e) <0.25
Orbital period (P) 59.87756 d
Inclination (i) >89.80°
Discovery information
Discovery date 2013
Discovery method Transit (Kepler Mission)
Discovery status Submitted
Other designations

Kepler-61b is a planet discovered in 2013 which orbits a star Kepler-61. It was found using the transit method, in which the dimming effect that a planet causes as it crosses in front of its star is measured. [2]


Kepler-61b has a radius of slightly more than 2 Earth's. It is located in the inner part of empirical habitable zone, a zone where liquid water could exist with high albedo, relatively low humidity and higher atmospheric pressure. [3]

External links[edit]


Coordinates: Sky map 19h 41m 13s, +42° 28′ 31″