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1 known planet · 3,914 light years

PSR J1719-1438

PSR J1719-1438 is a orange dwarf 3,914 light years away, with 1 confirmed planet. Distances and orbital speeds are to scale; the star and planets are enlarged so you can see them.

Day 0
habitable zone (estimate)planet orbits

Green band: where liquid water could exist on a planet's surface. Drag to turn the system, pinch or scroll to zoom.

The star

The star

PSR J1719-1438

Type
orange dwarf
Surface
≈ 4,500 K
Mass
1.40 × the Sun

The planets

PSR J1719-1438

PSR J1719-1438 b

Year
0.09 days
Distance from star
0.0044 AU
Mass
1.2 Jupiters
Found
2011, pulsar timing (Parkes Observatory)
Outside the habitable zone

Masses found by the wobble method are minimums, because the orbit's tilt is unknown. Temperatures are equilibrium estimates for a bare planet, before any atmosphere.

How we know

Pulsar Timing

Discovered by pulsar timing.

Sources

  1. Planet and star parameters: NASA Exoplanet Archive, Planetary Systems Composite Parameters, retrieved 1 Nov 2026. This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with NASA under the Exoplanet Exploration Program.
  2. Position: HYG Database v4.1 (CC BY-SA 4.0).
  3. Habitable zone: a simple estimate from the star's brightness (√L × 0.95 to 1.67 AU), shown as a guide.
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