BEBOP-4 AB b
BEBOP-4 AB b is a exoplanet orbiting the G3 V star BEBOP-4 A in the constellation Coma Berenices. It lies about 764 light-years from Earth and was discovered in 2025 using the radial velocity method.
Is BEBOP-4 AB b in the Habitable Zone?
The position of BEBOP-4 AB b relative to the habitable zone of BEBOP-4 A cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on BEBOP-4 AB b — one full orbit around BEBOP-4 A — lasts 1,823.5 Earth days, longer than an Earth year. It orbits at an average distance of 3.634 AU. Its orbit is highly elliptical (eccentricity 0.43), swinging dramatically closer to and farther from its star.
How Was BEBOP-4 AB b Discovered?
BEBOP-4 AB b was discovered in 2025 using the radial velocity method, with observations from Haute-Provence Observatory.
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 BEBOP-4 AB b?
BEBOP-4 AB b is 764.2 light-years (234.3 parsecs) from Earth. Light arriving here tonight left the planet around the year 1262. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 13,449,920 years to make the journey.
The Host Star: BEBOP-4 A
BEBOP-4 AB b is a circumbinary planet — it orbits around two stars at once, like Tatooine in Star Wars.
BEBOP-4 A
- Spectral type
- G3 V
- Mass
- 1.51 M☉
Planetary System
BEBOP-4 AB b is the only planet known to orbit BEBOP-4 A so far.
BEBOP-4 AB b — Complete Data
| Mass | 8,358.89 Earth masses (26.300 Jupiter masses) |
|---|---|
| Orbital period | 1,823.50 days |
| Orbital distance | 3.634 AU |
| Eccentricity | 0.428 |
| Distance from Earth | 764.2 light-years (234.3 parsecs) |
| Constellation | Coma Berenices |
| Discovery method | Radial Velocity |
| Discovery facility | Haute-Provence Observatory |
| Discovery year | 2025 |
Data: NASA Exoplanet Archive, last updated 2025-11-20. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About BEBOP-4 AB b
Is BEBOP-4 AB b habitable?
BEBOP-4 AB b is not known to orbit within the habitable zone of BEBOP-4 A.
How far away is BEBOP-4 AB b?
BEBOP-4 AB b is about 764 light-years from Earth in the constellation Coma Berenices. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 13,449,920 years to get there.
How long is a year on BEBOP-4 AB b?
One orbit around BEBOP-4 A takes 1,823.5 Earth days.
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