Original project · 2026

Complete star-system information

Ross 128

A relatively quiet red dwarf hosting the temperate candidate Ross 128 b.

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Host starRoss 128

Relatively quiet M-type red dwarf

Distance from EarthApprox. 11 light-years

One-way light time: 11 years

Worlds listed here1

1 catalog candidates flagged for habitability discussion.

Communication round trip22 years

Before any scientific processing or response delay.

System architecture

Ross 128

Star typeRelatively quiet M-type red dwarf
ArchitectureA nearby low-mass star with Ross 128 b as the principal confirmed planet in this catalog.
How it is observedThe planet was found through radial-velocity measurements of the host star.
Research importanceThe star's comparatively quiet behaviour makes the planet useful for temperate-world studies.
Main uncertaintyRadius, atmosphere and surface conditions are not directly measured.
Catalog worldRoss 128 b
DetectionRadial velocity
Direct imageNo
Stellar activityRelatively quiet for a red dwarf

System travel calculation

How long to reach Ross 128?

This is the approximate distance from Earth to the host star system. Every listed planet in the system is effectively at the same interstellar distance for travel estimates.

At light speed11 years299,792 km/s

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

At 10% of light speed110 years29,979 km/s — hypothetical

No operational spacecraft can sustain this interstellar cruise speed.

At 1% of light speed1,100 years2,998 km/s — hypothetical

Still far beyond current spacecraft propulsion.

At Parker Solar Probe peak17,156 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 speed202,812 yearsAbout 58,536 km/h

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

At Voyager 1 speed193,983 yearsAbout 61,200 km/h

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

Catalog worlds in this system

1 listed worlds

Primary catalog source: NASA Science ↗