Discovery | |
---|---|
Discovered by | Fontanive et al. |
Discovery date | 2020 |
Direct imaging | |
Orbital characteristics | |
200±6 AU (mean separation) | |
Star | CFHTWIR-Oph 98 A |
Physical characteristics [a] | |
Mean radius | 1.86±0.05 RJ |
Mass | 7.8+0.7 −0.8 MJ |
Temperature | 1800±40 K |
Spectral type | L2-L6 |
CFHTWIR-Oph 98 B is a substellar object, either an exoplanet or a sub-brown dwarf that orbits CFHTWIR-Oph 98 A, a M-type brown dwarf. [1] The pair form a binary system. [2]
It orbits a star but its formation as an exoplanet is challenging or impossible. [2] If its formation scenario is known, it may explain the formation of Planet Nine. Planetary migration may explain its formation, or it may be a brown dwarf.