Discovery | |
---|---|
Discovered by | Lauren M. Weiss et al. [1] |
Discovery date | 9 March 2013 |
Transit method | |
Orbital characteristics | |
0.3046 ± 0.0040 AU (45,570,000 ± 600,000 km) [1] | |
Eccentricity | 0.019 ± 0.23 [1] |
54.32031 ± 0.00012 [1] d | |
Inclination | 89.76 ± 0.15 [1] |
Semi-amplitude | 4.5+2.3 −3.5 [1] |
Star | Kepler-89 |
Physical characteristics | |
6.56 ± 0.62 [1] R🜨 | |
Mass | 35+18 −28 [1] ME |
Mean
density | 0.60+0.26 −0.56 g cm−3 |
Temperature | 584 K (311 °C; 592 °F) [1] |
Kepler-89e, also known as KOI-94e, is an exoplanet in the constellation of Cygnus. It orbits Kepler-89.
It is classed as a type III planet, making it cloudless and blue, and giving it the appearance of a larger version of Uranus and Neptune. It has a mass around 35 times that of Earth. [1] It has a similar density to Saturn, 0.60 g/cm3, [1] giving it a radius 6.56 times that of the Earth. [1] It orbits an F-type main-sequence star at a distance of 0.305 astronomical units (au), with a period of 54.32031 days, [1] making its orbit smaller than that of Mercury's. It has a very low eccentricity of 0.019. [1] It has a temperature of 584 K. [1]
Kepler-89e orbits the star Kepler-89. Kepler-89 has a mass of 1.18 solar masses, [2] and a radius of 1.32 solar radii. [2] It is 3.3 billion years old, younger than the Sun, [2] making its planets about 3,000,000,000 years old (3 Gyr). It has a temperature of 6,210 K, [2] making it appear bright yellowish-white.
Discovery | |
---|---|
Discovered by | Lauren M. Weiss et al. [1] |
Discovery date | 9 March 2013 |
Transit method | |
Orbital characteristics | |
0.3046 ± 0.0040 AU (45,570,000 ± 600,000 km) [1] | |
Eccentricity | 0.019 ± 0.23 [1] |
54.32031 ± 0.00012 [1] d | |
Inclination | 89.76 ± 0.15 [1] |
Semi-amplitude | 4.5+2.3 −3.5 [1] |
Star | Kepler-89 |
Physical characteristics | |
6.56 ± 0.62 [1] R🜨 | |
Mass | 35+18 −28 [1] ME |
Mean
density | 0.60+0.26 −0.56 g cm−3 |
Temperature | 584 K (311 °C; 592 °F) [1] |
Kepler-89e, also known as KOI-94e, is an exoplanet in the constellation of Cygnus. It orbits Kepler-89.
It is classed as a type III planet, making it cloudless and blue, and giving it the appearance of a larger version of Uranus and Neptune. It has a mass around 35 times that of Earth. [1] It has a similar density to Saturn, 0.60 g/cm3, [1] giving it a radius 6.56 times that of the Earth. [1] It orbits an F-type main-sequence star at a distance of 0.305 astronomical units (au), with a period of 54.32031 days, [1] making its orbit smaller than that of Mercury's. It has a very low eccentricity of 0.019. [1] It has a temperature of 584 K. [1]
Kepler-89e orbits the star Kepler-89. Kepler-89 has a mass of 1.18 solar masses, [2] and a radius of 1.32 solar radii. [2] It is 3.3 billion years old, younger than the Sun, [2] making its planets about 3,000,000,000 years old (3 Gyr). It has a temperature of 6,210 K, [2] making it appear bright yellowish-white.