Complete world information

TOI-715 b

TOI-715 b is an important TESS target, but a habitable-zone orbit alone does not reveal whether its surface has water or a suitable atmosphere.

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Scientific status

No exoplanet is confirmed habitable or inhabited. Habitable-zone position only means that liquid surface water could be possible under the right atmospheric conditions. Rate the Earth percentages are editorial comparison scores, not scientific probabilities.

Rate the Earth habitability percentages are editorial comparison scores, not scientific proof of habitability or life.
NASA/JPL-Caltech-inspired artist conceptCool-star super-Earth concept
Rate the Earth habitability comparison59%
Potential candidate — atmosphere and surface unknown
Probability of other life37%
Candidate for simple life
Distance modelApprox. 137 light-years

The listed value is the approximate present distance from Earth. Interstellar destinations move, but the difference is negligible compared with the enormous journey time at current spacecraft speeds.

One-way light time137 years

Minimum delay for information travelling at light speed.

Round-trip communication274 years

Approximate send-and-reply delay before processing time.

Real mission comparisonBeyond current mission capability

No spacecraft has travelled to this system

Host systemTOI-715Open the complete star-system information page →

Life potential

Could other life exist on TOI-715 b?

TOI-715 b is treated as a potentially habitable candidate, so this site assigns it a moderate editorial probability for simple non-human life.

Editorial probability of other life37%
Candidate for simple life

Why this score?

  • Rate the Earth habitability comparison score: 59%.
  • Atmosphere clue: Unknown.
  • Host-star context: M-type red dwarf.
  • The catalog flags this world as a potentially habitable candidate.

This probability is an editorial astrobiology estimate based on public characteristics, not a formal scientific measurement.

Complete data sheet

Everything listed for TOI-715 b

Measured values, estimates, discovery information and the main uncertainties are shown together below.

WorldTOI-715 b
ClassificationConservative-zone super-Earth
Host systemTOI-715
Host starM-type red dwarf
Distance from EarthApprox. 137 light-years
Radius1.55 × Earth
Mass3.02 × Earth
GravityLikely higher than Earth
AtmosphereUnknown
TemperatureModel-dependent
Orbital period19.3 days
Discovery year2023
Discovery methodTransit
Habitability statusPotential candidate — atmosphere and surface unknown
Candidate classificationPotentially habitable candidate — not confirmed habitable
Image statusNo resolved surface image; displayed visual is a labelled artist concept
DistanceAbout 137 light-years
RadiusAbout 1.55 × Earth
MassAbout 3.02 × Earth
Orbital periodAbout 19.3 days

Travel calculation

How long would the journey take?

Straight-line arithmetic is compared with real mission history. Actual trajectories depend on orbital mechanics, acceleration, braking, launch windows and gravity assists.

At light speed137 years299,792 km/s

A physical reference only. A spacecraft with mass cannot reach light speed.

At 10% of light speed1,370 years29,979 km/s — hypothetical

No operational spacecraft can sustain this interstellar cruise speed.

At 1% of light speed13,700 years2,998 km/s — hypothetical

Still far beyond current spacecraft propulsion.

At Parker Solar Probe peak213,667 yearsAbout 692,000 km/h

Parker reaches this speed only very close to the Sun; it is not an interstellar cruise speed.

At New Horizons launch speed2.53 million yearsAbout 58,536 km/h

A comparison using a real high-energy launch from Earth.

At Voyager 1 speed2.42 million yearsAbout 61,200 km/h

A practical comparison with a spacecraft already moving into interstellar space.

Research guide

What we know, and what we do not know

What is directly known

The planet itself is not resolved as a detailed globe. Its existence and properties are inferred mainly through transit, together with measurements of the host star.

What remains unknown

Surface geography, oceans, continents, clouds and living organisms have not been directly observed. Atmosphere and composition may also remain uncertain.

What is known

TOI-715 b is about one and a half times Earth's width and completes an orbit every 19.3 days.

Habitability limits

Its larger size may support a rocky super-Earth or a volatile-rich planet; atmospheric measurements are needed.

Why it stands out

NASA highlighted it as a conservative-habitable-zone discovery around a nearby small red star.

Primary catalog source: NASA Science