HIP 67522 b
| Discovery | |
|---|---|
| Discovered by | THYME (Rizzuto et al.) |
| Discovery date | 2020 |
| Primary Transit | |
| Designations | |
| HD 120411 b, Gaia DR2 6113920619134019456 b, TYC 7794-2268-1 b | |
| Orbital characteristics | |
| Eccentricity | 0.059+0.193 −0.046 |
| 6.959503±0.000016 d | |
| Inclination | 89.34°+0.45° −0.54° (to plane of sky) 5.8+2.8 −5.7 ° (to host star's equator, projected) |
| 343.0+92.0 −140.0 ° | |
| Star | HIP 67522 |
| Physical characteristics | |
| 0.897±0.051 RJ | |
| Mass | 13.8 ± 1.0, <20 M🜨, 29.8 ± 3 M🜨 |
Mean density | (uncertain) |
| Temperature | 1174±21 K |
HIP 67522 b is a hot Neptune or sub-Saturn exoplanet orbiting the G-type star HIP 67522, approximately 415 light-years from Earth in the constellation Centaurus. It was discovered using the Transiting Exoplanet Survey Satellite (TESS). It is one of the youngest transiting planets of any type, and one of only four others less than 100 million years old (along with AU Mic b, V1298 Tau c, DS Tuc Ab and TOI-942 b) to have the angle between its orbit and its host star's rotation measured, at 5.8+2.8
−5.7 degrees. This planet, in turn, may help in understanding how other hot Neptunes form.
There is also evidence that another planet might also be present in the planetary system.