Poltergeist
PSR B1257+12 c
IAU name «Poltergeist» — Italy, 2015 contest
📋 A written introduction is coming — for now this page shows official values only.
Planet
- Host star
- PSR B1257+12
- Distance from Earth
- 600 pc (≈ 1,956.9 light-years)
- NASA planet type
- Super Earth
- Radius (Earth = 1)
- 1.91
- Mass (Earth = 1)
- 4.3
- Orbital period
- 66.5419 days
- Semi-major axis
- 0.36 AU
- Eccentricity
- 0.0186
- Discovery method
- Pulsar Timing
- Discovery year
- 1,992
- Discovery facility
- Arecibo Observatory
- Host mass (Sun = 1)
- 1.4
Source:NASA Exoplanet Archive (Caltech/IPAC) · checked 2026-11-02 ↗NASA Science · checked 2026-11-02 ↗NASA Exoplanet Archive (Caltech/IPAC) · checked 2026-11-02 ↗
Related
Host star
In everyday life
- Light from this object takes about 1,957 years to reach Earth — the light you see tonight left around AD 69 (official distance ÷ speed of light).
- Its radius is about 1.9 times Earth's (NASA Exoplanet Archive).
- One orbit takes about 66.5 Earth days — that is this planet's year.
Worked out from this object's official values.