- sun
- 0.76× as wide
- sky
- warm white
Illustration computed from this world’s measured and derived values, not a photograph.
BEBOP-4 AB b
BEBOP-4 AB b is a confirmed sub-Neptune exoplanet 764 ly from Earth in the constellation Coma Berenices, discovered in 2025 by Haute-Provence Observatory.
Radial Velocity: spotted by the gravitational wobble the planet tugs in its star.
Its yellow, Sun-like star looks 0.76× as wide as ours, bathing the surface in warm white light. A year here lasts 5.0 Earth years, and at an estimated -34°C (-29°F) it is cold.
What these mean: surface gravity · tidal locking · equilibrium temperature · habitable zone
Hear how a voice sounds herea computed acoustic demo
Your voice would sound deeper and fuller.
Assuming Earth-like air at this world's temperature of about -34°C (-29°F), sound would travel roughly 9% slower than on Earth, so your voice would sound deeper and fuller. The real atmosphere is unknown, so this is a best guess.
A real voice sample, pitch-shifted (tempo held constant) to suggest the acoustics: a playful approximation, not a precise simulation. Voice: Lingua Libre / Vealhurl, CC BY-SA 4.0.
- Surface temperatures near -34°C (-29°F) fall in the range where liquid water is at least possible.
- It orbits within the habitable zone, where a world could in principle hold liquid water.
A playful read of BEBOP-4 AB b’s measured and computed values, not a real advisory.
How long to get there · 764 ly away
No other confirmed planets here yet. New ones auto-appear as telescopes report.
Zoom out: star → system → (soon) galaxy arm, host black hole, and a real image of the host galaxy.
Matched telescope & eyepiece recommendations are coming. Any product links will carry a clear affiliate disclosure.
How far is BEBOP-4 AB b from Earth?
BEBOP-4 AB b lies about 764 light-years from Earth.
How long would it take to get to BEBOP-4 AB b?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 1.2 million years.
How hot is BEBOP-4 AB b?
BEBOP-4 AB b's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about -34°C (-29°F).
Is BEBOP-4 AB b habitable?
BEBOP-4 AB b orbits inside its star's habitable zone, the range of distances where liquid water could be stable. That makes it worth studying, but it is not evidence of life: we have no measurement of its atmosphere, water, or surface.
How long is a year on BEBOP-4 AB b?
BEBOP-4 AB b completes one orbit of its star in 5.0 years.
Illustration generated from BEBOP-4 AB b's confirmed parameters, not a photograph.