| Discovery | |
|---|---|
| Discovered by | Mordasini et al.[1] |
| Discovery site | La Silla Observatory |
| Discovery date | October 19, 2009 |
| radial velocity (HARPS) | |
| Orbital characteristics | |
| 0.235 AU (35,200,000 km) | |
| Eccentricity | 0 (fixed) |
| 47.8 d 0.131 y | |
| Star | HD 103197 |
HD 103197 b (also known as HIP 57931 b) is an extrasolar planet which orbits the K-type main sequence star HD 103197, located approximately 170 light years away. It is outside of the habitable zone, and as such is unlikely to have liquid water on its moons, if there are any.
References
[edit]- ^ Mordasini, C.; et al. (2011). "The HARPS search for southern extrasolar planets XXIV. Companions to HD 85390, HD 90156, and HD 103197: a Neptune analog and two intermediate-mass planets". Astronomy and Astrophysics. 526. A111. arXiv:1010.0856. Bibcode:2011A&A...526A.111M. doi:10.1051/0004-6361/200913521. S2CID 59062607.
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