YZ Cet b
📋 A written introduction is coming — for now this page shows official values only.
Planet
- Host star
- YZ Cet
- Distance from Earth
- 3.7121 pc (≈ 12.1 light-years)
- NASA planet type
- Terrestrial
- Radius (Earth = 1)
- 0.913
- Mass (Earth = 1)
- 0.7
- Orbital period
- 2.0209 days
- Semi-major axis
- 0.01634 AU
- Eccentricity
- 0.06
- Equilibrium temperature
- 471.2 K
- Discovery method
- Radial Velocity
- Discovery year
- 2,017
- Discovery facility
- La Silla Observatory
- Host spectral type
- M4.5 V
- Host temperature
- 3,151 K
- Host radius (Sun = 1)
- 0.157
- Host mass (Sun = 1)
- 0.142
- Host brightness
- 12.074 mag
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 ↗
In everyday life
- Light from this object takes about 12 years to reach Earth — the light you see tonight left around AD 2014 (official distance ÷ speed of light).
- Its radius is about 0.9 times Earth's (NASA Exoplanet Archive).
- One orbit takes about 2 Earth days — that is this planet's year.
Worked out from this object's official values.