- weight
- ≥ 1.21 g
- sun
- 12.8× wider
- sky
- warm white
Illustration computed from this world’s measured and derived values, not a photograph.
rho CrB e
rho CrB e is a confirmed sub-Neptune exoplanet 57.0 ly from Earth in the constellation Corona Borealis, discovered in 2023 by Lowell Observatory.
Radial Velocity: spotted by the gravitational wobble the planet tugs in its star.
Standing on rho CrB e, you would weigh roughly about 21% more than you do on Earth. Its yellow, Sun-like star looks 12.8× wider than ours, bathing the surface in warm white light. It is likely tidally locked, so that sun never moves in the sky: one hemisphere in endless day, the other in permanent night. A year passes in just 13 days, and at an estimated 732°C (1349°F) it is furnace-hot.
How closely this world matches Earth in size and warmth, from 0 to 1 (Earth = 1.0). Computed by gravityfinder. See every world ranked →
What these mean: surface gravity · tidal locking · equilibrium temperature · Earth similarity
If your children grew up herea playful thought experiment
Gravity close to Earth's, at about 1.2 times. A child would grow up much as they would back home.
A playful thought experiment from this world’s gravity, not a prediction about any real person. No human has ever grown up off Earth, so no one truly knows; the direction (taller in low gravity, shorter and stockier in high) follows how growing bodies respond to weight.
Hear how a voice sounds herea computed acoustic demo
Your voice would sound high and thin, almost cartoonish.
Assuming Earth-like air at this world's temperature of about 732°C (1349°F), sound would travel roughly 87% faster than on Earth, so your voice would sound high and thin, almost cartoonish. 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.
- !Furnace-hot at around 732°C (1349°F), with no liquid water and no shade anywhere.
- Surface gravity is close to Earth's, at least 1.21 times, so you would move much as you do here.
- !Its star delivers about 152 times the sunlight Earth gets, a blinding, sterilizing glare.
- !Likely tidally locked: one hemisphere in endless day, the other in permanent night.
A playful read of rho CrB e’s measured and computed values, not a real advisory.
How long to get there · 57.0 ly away
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.
What is the gravity on rho CrB e?
rho CrB e's surface gravity is at least 1.2 times Earth's, and possibly more: its mass is only a lower bound.
How much would you weigh on rho CrB e?
Someone who weighs 150 pounds on Earth would weigh at least 182 pounds on rho CrB e.
How far is rho CrB e from Earth?
rho CrB e lies about 57.0 light-years from Earth.
How long would it take to get to rho CrB e?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 88,851 years.
How hot is rho CrB e?
rho CrB e's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 732°C (1349°F).
How long is a year on rho CrB e?
rho CrB e completes one orbit of its star in 13 days.
Illustration generated from rho CrB e's confirmed parameters, not a photograph.