Constellation Octans | ||
Similar GU Piscium b, Beta Pictoris, TW Hydrae | ||
News pianeta orfano ritrova la stella madre pianeta 2mass j2126 stella tyc 9486 927 1
TYC 9486-927-1 (also known as 2MASS J21252752-8138278) is a star located at a distance of 24.75 (± 4.25) parsecs from Earth in the southern direction in the constellation of Octans. It is a dwarf (luminosity class V) red (spectral class M1) variable by rotation.
Contents
- News pianeta orfano ritrova la stella madre pianeta 2mass j2126 stella tyc 9486 927 1
- 2MASS J21265040 8140293
- References
The star is the primary object of a planetary system having the secondary object 2MASS J21265040-8140293. This substellar object, being an exoplanet, is the most extensive planetary systems known to date.
TYC 9486-927-1 has rapid rotation and coronal and chromospheric activity suggestive of a young age. Observations and multi-epoch radial velocity data suggest that TYC 9486-927-1 is a single, rapidly rotating star rather than a spectroscopic or tight, visual binary. However, it is still possible that TYC 9486-927-1 is an equal mass binary with a face-on orbit and close separation.
2MASS J21265040-8140293
2MASS J21265040-8140293 orbits TYC 9486-927-1 and remains a little-known subject. With a weight from 11.6 to 15 Jupiter masses, it was considered to be either a star, a brown dwarf, or a giant planet. It has since be confirmed that it is actually an exoplanet.