- Host star
- GJ 1214
- Star type
- M-type red dwarf
- Planet radius
- c. 2.73 × Earth
- Planet mass
- 8.41 × Earth
- Orbital period
- c. 1.6 days
- Orbital distance
- 0.01505 AU
- Discovery
- 2009 · Transit
Values are rounded from published catalogue measurements. Sky coordinates identify the host system, not a resolved planetary surface.
A world behind a veil
GJ 1214 b is smaller than Neptune but larger than Earth. The term sub-Neptune describes its size range; it does not identify an Earth-like surface underneath. Its substantial atmosphere makes it an excellent subject for studying an unfamiliar class of planets.
Where is GJ 1214 b?
It orbits a red dwarf in Ophiuchus, around 48 light-years from Earth. The close orbit takes roughly 1.6 days. Its host is cooler and smaller than the Sun, but the planet still receives substantial heating at this distance.
What hides the deeper atmosphere?
Webb observations revealed a highly reflective atmosphere and helped measure day-to-night temperatures. Aerosols or haze obscure deeper features. Atmospheric composition remains an active question; describing a water-rich interior as established fact would go beyond what the image can show.
What might a hazy world look like?
Our reconstruction uses muted amber, cream and bronze light across dense haze. The exact colour and visible layering are interpretive. The absence of exposed geology in the artwork reflects the atmospheric obscuration rather than a photographed cloud deck.
How was it discovered?
The catalogue records a transit discovery in 2009. The planet’s repeated passages across its small star make its size measurable and offer opportunities to study the atmosphere through spectroscopy.
A quieter kind of spectacular
This planet poster suits someone drawn to subtle atmosphere rather than molten drama. Give the gift a ceremonial title and dedication; the actual designation, host and orbital details keep the astronomy grounded.