Star with planets

TOI-700

Also TIC 150428135

Open in Ouranos

TOI-700 — Artist's impression of TOI 700 d — Artist's impression, not a photograph.Artist's impression of TOI 700 d. Credit: NASA's Goddard Space Flight Center. Licence: Public domain (NASA). Source

A quiet red dwarf with two Earth-sized planets in its habitable zone, found by NASA's TESS.

Measured

Distance: 102 light-years
Constellation: Dorado
Position (J2000): RA 6h 28m 23s, Dec −65.58°

How far, from the Sun

102 light-years. To cross it:

Light102 years
Voyager 1's speed1.8 million years
Driving at 100 km/h1.1 billion years

Voyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.

Facts

A second Earth-sized habitable-zone planet, TOI-700 e, was announced in 2023.
The star has about 42% of the Sun's mass.

How it was found

TOI-700 d, found in 2020, was TESS's first Earth-sized planet in a habitable zone.

Where this comes from

Gaia DR3 parallax 32.1328 ± 0.0271 mas, Gaia DR3 5284517766615850752 (Gaia Collaboration 2023, A&A 674, A1)

Every catalogue Ouranos draws is credited on the credits page.