Tassili
HD 28678 b
IAU name «Tassili» — Algeria, 2019 contest
📋 A written introduction is coming — for now this page shows official values only.
Planet
- Host star
- HD 28678
- Distance from Earth
- 189.908 pc (≈ 619.4 light-years)
- NASA planet type
- Gas Giant
- Radius (Earth = 1)
- 13.5
- Mass (Earth = 1)
- 490.0939
- Orbital period
- 380.2 days
- Semi-major axis
- 1.18 AU
- Eccentricity
- 0.149
- Equilibrium temperature
- 561.84 K
- Discovery method
- Radial Velocity
- Discovery year
- 2,011
- Discovery facility
- W. M. Keck Observatory
- Host spectral type
- G8 IV
- Host temperature
- 4,972 K
- Host radius (Sun = 1)
- 6.48
- Host mass (Sun = 1)
- 1.53
- Host brightness
- 8.38 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 ↗
Related
Host star
In everyday life
- Light from this object takes about 619 years to reach Earth — the light you see tonight left around AD 1407 (official distance ÷ speed of light).
- Its radius is about 14 times Earth's (NASA Exoplanet Archive).
- One orbit takes about 380.2 Earth days (about 1 years) — that is this planet's year.
Worked out from this object's official values.