| Discovery | |
|---|---|
| Discovered by | CoRoT space telescope |
| Transit | |
| Orbital characteristics | |
| 0.0417 AU (6,240,000 km)[1] | |
| Eccentricity | 0 |
| 2.72474[1] d | |
| Inclination | 86.8[1] |
| Star | CoRoT-21 |
| Physical characteristics | |
| 1.3 RJ | |
| Mass | 2.26MJ |
| Temperature | 1857 K[2] |
CoRoT-21b is a transiting exoplanet reportedly found by the CoRoT space telescope in 2011. Planetary parameters were published in 2012.[3]
It is an extremely hot Jupiter-like planet with an orbital period of 2.72 earth days. It has a mass equivalent to 2.26 MJ, a radius of 1.3 RJ, and a density of 1.37 g/cm3.
The planet is experiencing extreme tidal forces, forcing its orbit to decay within 800 million years from now.[4]
Host star
[edit]CoRoT-21b orbits CoRoT-21 in the constellation of Monoceros. It is an F-type subgiant star (spectral type F8IV) with an effective temperature of 6,200 K (5,930 °C; 10,700 °F), a mass of 1.29 M☉, a radius of 1.945 R☉, and a near-solar metallicity. It has an estimated age between 3.6 and 4.6 Gyr.
References
[edit]- ^ a b c "Notes on CoRoT-21 b". Extrasolar Planets Encyclopaedia. Retrieved February 25, 2019.
- ^ "COROT-21 Planets in the system". Retrieved February 25, 2019.
- ^ Parviainen, H.; Deeg, H. J.; Belmonte, J. A. (2012), "Secondary eclipses in the CoRoT light curves", Astronomy & Astrophysics, 550: A67, arXiv:1211.5361, doi:10.1051/0004-6361/201220081, S2CID 54985515
- ^ Transiting exoplanets from the CoRoT space mission XXIII. CoRoT-21b: a doomed large Jupiter around a faint subgiant star
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Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction