Astronomy:Kepler-37c
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Short description: Terrestrial planet orbiting Kepler-37
| Discovery[1] | |
|---|---|
| Discovery site | Kepler space telescope |
| Discovery date | 2013 |
| Transit | |
| Orbital characteristics[2] | |
| 0.1390±0.0020 astronomical unit|AU | |
| Eccentricity | <0.099 |
| Orbital period | 21.301848(18) d |
| Inclination | 89.07°+0.19° −0.33° |
| Star | Kepler-37 |
| Physical characteristics[2] | |
| Mean radius | 0.755+0.033 −0.055 R⊕ |
| Mass | <1.3 M⊕ |
| Physics | 615±9 K (342 °C; 647 °F, equilibrium) |
Kepler-37c is an exoplanet discovered by the Kepler space telescope in February 2013.[3] With an orbital period of 21 days,[4] it is located 209 light-years away, in the constellation Lyra.
Host star
The planet orbits a (G-type) star similar to the Sun, named Kepler-37, orbited by a total of four planets. The star has a mass of 0.80 M☉ and a radius of 0.79 R☉. It has a temperature of, 5417 K and is 5.66 billion years old. In comparison, the Sun is 4.6 billion years old,[5] and has a temperature of 5778 K.[6]
The star's apparent magnitude, or how bright it appears from Earth's perspective, is 9.71. Therefore, it is too dim to be seen with the naked eye.
See also
- List of planets discovered by the Kepler spacecraft
References
- ↑ Barclay, T.; Rowe, J. F.; Lissauer, J. J.; Huber, D.; Fressin, F.; Howell, S. B.; Bryson, S. T.; Chaplin, W. J. et al. (2013-02-20). "A sub-Mercury-sized exoplanet". Nature 494 (7438): 452–4. doi:10.1038/nature11914. ISSN 0028-0836. PMID 23426260. Bibcode: 2013Natur.494..452B.
- ↑ 2.0 2.1 Bonomo, A. S. et al. (April 2023). "Cold Jupiters and improved masses in 38 Kepler and K2 small-planet systems from 3661 high-precision HARPS-N radial velocities. No excess of cold Jupiters in small-planet systems". Astronomy & Astrophysics. doi:10.1051/0004-6361/202346211.
- ↑ Harwood, William. "Kepler telescope spots smallest exoplanet yet". Spaceflight Now Inc. http://spaceflightnow.com/news/n1302/21kepler/.
- ↑ Black, Charles. "NASA's Kepler discovers small planet system". SEN TV LIMITED. http://www.sen.com/News/nasa-s-kepler-discovers-small-planet-system.html.
- ↑ Fraser Cain (16 September 2008). "How Old is the Sun?". Universe Today. http://www.universetoday.com/18237/how-old-is-the-sun/.
- ↑ Fraser Cain (15 September 2008). "Temperature of the Sun". Universe Today. http://www.universetoday.com/18092/temperature-of-the-sun/.
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