HIP 77900 b
HIP 77900 b is a exoplanet orbiting HIP 77900 in the constellation Scorpius. It lies about 492 light-years from Earth and was discovered in 2024 using the imaging method.
Is HIP 77900 b in the Habitable Zone?
The position of HIP 77900 b relative to the habitable zone of HIP 77900 cannot be precisely determined from the available orbital data.
Temperature on HIP 77900 b
The equilibrium temperature of HIP 77900 b is about 2,507 K (2,234 °C) — hot enough to melt many metals. This estimate ignores any atmosphere, which could change surface temperatures dramatically — Earth's greenhouse effect adds about 33 °C.
Orbit and Year Length
HIP 77900 b orbits at an average distance of 3,319.000 AU.
How Was HIP 77900 b Discovered?
HIP 77900 b was discovered in 2024 using the imaging method, with observations from European Space Agency (ESA) Gaia Satellite.
Direct imaging captures actual pictures of a planet by blocking out the overwhelming glare of its host star. It works best for young, hot, massive planets on wide orbits.
How Far Away Is HIP 77900 b?
HIP 77900 b is 492.0 light-years (150.9 parsecs) from Earth. Light arriving here tonight left the planet around the year 1534. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 8,659,200 years to make the journey.
The Host Star: HIP 77900
HIP 77900
Planetary System
HIP 77900 b is the only planet known to orbit HIP 77900 so far.
HIP 77900 b — Complete Data
| Mass | 6,674.40 Earth masses (21.000 Jupiter masses) |
|---|---|
| Orbital distance | 3,319.000 AU |
| Equilibrium temperature | 2,507 K (2,234 °C) |
| Distance from Earth | 492.0 light-years (150.9 parsecs) |
| Constellation | Scorpius |
| Discovery method | Imaging |
| Discovery facility | European Space Agency (ESA) Gaia Satellite |
| Discovery year | 2024 |
Data: NASA Exoplanet Archive, last updated 2024-05-08. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About HIP 77900 b
Is HIP 77900 b habitable?
HIP 77900 b is not known to orbit within the habitable zone of HIP 77900.
How far away is HIP 77900 b?
HIP 77900 b is about 492 light-years from Earth in the constellation Scorpius. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 8,659,200 years to get there.
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