Exoplanets: LHS 1140 b

• Planet: LHS 1140 b
• Sequence: 01
• Saved image path: My-Library/Images/Collections/Exoplanets/Images/Exoplanets_01-LHS-1140-b.png
• Model: built-in gpt-image
• Generation date: 2026-07-07

Planet Profile

• Planet type: Super-Earth / possible water world
• Host star: M-type red dwarf
• Mass: ~6.38 Earth masses
• Orbital period: 24.7 Earth days
• Orbital distance: 0.0957 AU
• Possible interpretation: temperate mini-Neptune or water world; recent work highlights it as a possible habitable water world

Environment

• Gravity: high, likely around 2x Earth depending on radius model
• Light: dim red-orange star light
• Climate: cold-to-temperate depending on atmosphere
• Surface: possible global ocean, ice shell, or thick atmosphere
• Atmosphere: unknown; nitrogen-rich atmosphere possible but not confirmed

Creature Design Direction

Heavy-gravity aquatic or amphibious life. Creatures should be squat, muscular, broad-bodied, pressure-resistant, and adapted to low red light.

Planet / Habitat Depicted

Surface-level high-gravity water-world scene with shallow dark ocean, wet mineral shallows, pressure-ridged ice shelves, mist, low red-orange M-dwarf light, heavy waves, and a broad ocean horizon.

Sources

• Data provided in the collection plan (Prompts/generate-exoplanets-collection.md); measurements are from published exoplanet catalogs. No web research performed for this collection.

Final Prompt Used

Use case: scientific-educational
Asset type: Exoplanets image collection entry, final 3:2 landscape PNG, 1536x1024
Primary request: Create a scientifically plausible alien creature from LHS 1140 b, while also clearly depicting the planet itself through a surface-level environmental view: the general environment, ocean/ice surface, ground texture, sky, atmosphere, weather, horizon, and host-star lighting. Do not show LHS 1140 b as a separate sphere in the sky; do not add moons, extra planets, orbital views, or space cutaways.

Core description: A scientifically plausible alien amphibian from LHS 1140 b, a high-gravity red-dwarf water world, broad low body, thick limbs, pressure-resistant skin, dark blue-black coloration, large low-light eyes, finned sensory frills, standing in shallow alien ocean under dim red-orange starlight, documentary scientific illustration style.

Planet context: super-Earth / possible water world around an M-type red dwarf; mass about 6.38 Earth masses; possible temperate mini-Neptune or water world; high gravity, likely around 2x Earth depending on radius model; dim red-orange star light; cold-to-temperate depending on atmosphere; possible global ocean, ice shell, or thick atmosphere; atmosphere unknown, nitrogen-rich possible but not confirmed.

Planet / habitat depiction requirements: Make the world read as LHS 1140 b from the surface, not as a generic shoreline. Show a cold-to-temperate high-gravity water world with a shallow alien ocean, heavy low waves, ice shelves or dark pressure-ridged ice in the distance, wet mineral shallows underfoot, a low red-orange M-dwarf sun behind atmospheric haze, mist close to the water, and a broad horizon suggesting a global ocean or ice shell. The environment should be detailed and readable, with water displacement around the creature's thick limbs and a sense of heavy gravity.

Creature requirements: Body plan clearly reflects high gravity: short, broad, muscular, pressure-resistant, low center of mass. Sensory organs reflect dim red-dwarf light: large low-light eyes and finned sensory frills. Skin/insulation reflect a cold-to-temperate ocean world: dark blue-black, wet, tough, slightly pebbled, with subtle pressure-adapted folds. Locomotion fits shallow alien ocean terrain: thick limbs braced against waves and gravity.

Style/medium: natural-history field-guide illustration, realistic scientific/anatomical detail, documentary lighting, NASA meets National Geographic meets speculative astrobiology, one unified scene.
Composition/framing: wide 3:2 landscape, balanced creature portrait plus readable planetary seascape; do not crop tightly. Creature in the foreground or midground with visible ocean surface, ice, sky, weather, and horizon. Not a collage, not a diagram.
Color palette: dark blue-black organism, muted cyan-gray water and ice, red-orange stellar light, restrained scientific realism.
Constraints: no humanoid anatomy unless scientifically justified; no fantasy monster design; no embedded text, labels, logos, watermarks, real-person likenesses, official insignia, separate planet globe in the sky, moons, extra planets, orbital scene, or space cutaway.