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.
| Discovery[1] | |
|---|---|
| Discovery site | Kepler space telescope |
| Discovery date | 2013 |
| Transit | |
| Orbital characteristics[2] | |
| 0.1390±0.0020 AU | |
| Eccentricity | <0.099 |
| 21.301848(18) d | |
| Inclination | 89.07°+0.19° −0.33° |
| Star | Kepler-37 |
| Physical characteristics[2] | |
| 0.755+0.033 −0.055 R🜨 | |
| Mass | <1.3 M🜨 |
| Temperature | 615±9 K (342 °C; 647 °F, equilibrium) |
Host star
editThe 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
editReferences
edit- ^ Barclay, T.; Rowe, J. F.; Lissauer, J. J.; Huber, D.; Fressin, F.; Howell, S. B.; Bryson, S. T.; Chaplin, W. J.; Désert, J. M. (2013-02-20). "A sub-Mercury-sized exoplanet". Nature. 494 (7438): 452–4. arXiv:1305.5587. Bibcode:2013Natur.494..452B. doi:10.1038/nature11914. ISSN 0028-0836. PMID 23426260. S2CID 205232792.
- ^ a b Bonomo, A. S.; Dumusque, X.; 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. arXiv:2304.05773. doi:10.1051/0004-6361/202346211. S2CID 258078829.
- ^ Harwood, William. "Kepler telescope spots smallest exoplanet yet". Spaceflight Now Inc. Retrieved 25 February 2013.
- ^ Black, Charles. "NASA's Kepler discovers small planet system". SEN TV LIMITED. Archived from the original on 23 February 2013. Retrieved 25 February 2013.
- ^ Fraser Cain (16 September 2008). "How Old is the Sun?". Universe Today. Retrieved 19 February 2011.
- ^ Fraser Cain (15 September 2008). "Temperature of the Sun". Universe Today. Retrieved 19 February 2011.
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