HIP 948 b
HIP 948 b is a exoplanet orbiting HIP 948 in the constellation Sculptor. It lies about 114 light-years from Earth and was discovered in 2022 using the radial velocity method.
Is HIP 948 b in the Habitable Zone?
The position of HIP 948 b relative to the habitable zone of HIP 948 cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on HIP 948 b — one full orbit around HIP 948 — lasts 24,955.5 Earth days, longer than Jupiter's 12-year orbit. It orbits at an average distance of 15.037 AU. Its orbit is mildly elliptical (eccentricity 0.23).
How Was HIP 948 b Discovered?
HIP 948 b was discovered in 2022 using the radial velocity method, with observations from Multiple Observatories.
The radial velocity method measures the subtle wobble of a star caused by the gravitational pull of an orbiting planet, visible as periodic shifts in the star's light spectrum. The size of the wobble reveals the planet's minimum mass.
How Far Away Is HIP 948 b?
HIP 948 b is 113.7 light-years (34.9 parsecs) from Earth. Light arriving here tonight left the planet around the year 1913. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 2,001,120 years to make the journey.
Earth Similarity Index
The Earth Similarity Index (ESI) scores how physically similar a planet is to Earth, from 0 to 1, based on radius, density, escape velocity and surface temperature. HIP 948 b scores 0.07, ranking #4,816 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: HIP 948
HIP 948
- Mass
- 0.71 M☉
Planetary System
HIP 948 b is the only planet known to orbit HIP 948 so far.
HIP 948 b — Complete Data
| Mass | 6,547.27 Earth masses (20.600 Jupiter masses) |
|---|---|
| Orbital period | 24,955.46 days |
| Orbital distance | 15.037 AU |
| Eccentricity | 0.230 |
| Earth Similarity Index | 0.07 |
| Distance from Earth | 113.7 light-years (34.9 parsecs) |
| Constellation | Sculptor |
| Discovery method | Radial Velocity |
| Discovery facility | Multiple Observatories |
| Discovery year | 2022 |
Data: NASA Exoplanet Archive, last updated 2023-06-12. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About HIP 948 b
Is HIP 948 b habitable?
HIP 948 b is not known to orbit within the habitable zone of HIP 948.
How far away is HIP 948 b?
HIP 948 b is about 114 light-years from Earth in the constellation Sculptor. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 2,001,120 years to get there.
How long is a year on HIP 948 b?
One orbit around HIP 948 takes 24,955.5 Earth days.
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