- weight
- 1.22 g
- sun
- 2.8× wider
- sky
- deep orange
Illustration computed from this world’s measured and derived values, not a photograph.
TOI-1266 d
TOI-1266 d is a confirmed sub-Neptune exoplanet 117 ly from Earth in the constellation Draco, discovered in 2025 by Transiting Exoplanet Survey Satellite (TESS).
Transit Timing Variations: inferred from the gravitational tug it puts on a sibling planet’s transit timing.
Standing on TOI-1266 d, you would weigh about 22% more than you do on Earth. Its red dwarf looks 2.8× wider than ours, bathing the surface in deep orange 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 33 days, and at an estimated 15°C (59°F) it is cold.
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 · habitable zone
If your children grew up herea playful thought experiment
Gravity close to Earth's, at 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 much as it does on Earth.
Assuming Earth-like air at this world's temperature of about 15°C (59°F), sound would travel close to its Earth speed, so your voice would sound much as it does on Earth. The real atmosphere is unknown.
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 15°C (59°F) fall in the range where liquid water is at least possible.
- Surface gravity is close to Earth's, 1.22 times, so you would move much as you do here.
- A high Earth-similarity index of 0.80, among the more Earth-like worlds known.
- !Likely tidally locked: one hemisphere in endless day, the other in permanent night.
A playful read of TOI-1266 d’s measured and computed values, not a real advisory.
How long to get there · 117 ly away
Zoom out: star → system → (soon) galaxy arm, host black hole, and a real image of the host galaxy.
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What is the gravity on TOI-1266 d?
TOI-1266 d's surface gravity is about 1.2 times Earth's.
How much would you weigh on TOI-1266 d?
Someone who weighs 150 pounds on Earth would weigh about 182 pounds on TOI-1266 d.
How far is TOI-1266 d from Earth?
TOI-1266 d lies about 117 light-years from Earth.
How long would it take to get to TOI-1266 d?
At the speed of NASA's Parker Solar Probe, the fastest craft ever built, the journey would take about 183,183 years.
How hot is TOI-1266 d?
TOI-1266 d's equilibrium temperature, the balance it reaches from its star's light alone before any greenhouse warming, is about 15°C (59°F).
Is TOI-1266 d habitable?
TOI-1266 d orbits near its star's habitable zone, the range of distances where liquid water could be stable, and its Earth-similarity index is 0.80. 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 TOI-1266 d?
TOI-1266 d completes one orbit of its star in 33 days.
Illustration generated from TOI-1266 d's confirmed parameters, not a photograph.