Sign in or create your account

Enter your email and we'll send a 6-digit code — no password needed.
We only keep your email and the username you choose. We never share or sell your email, and we don't send marketing — we use it only to email you a sign-in code. Learn more.
Entering orbit…
Habitability
65/ 100
Habitable

Grotton Prime

by Stargazer
0

Barren

Magnetic FieldModerate Activity
Why is this a Barren?Your planet has an unusual composition that doesn't fit standard classifications, or lacks the elements needed for complex geological processes.
Barren worlds can form from uncommon element combinations or may be remnants of larger bodies that lost their atmospheres and volatile materials.
Classification Criteria:
Composition doesn't match standard planet typesMass: 1.0x EarthTemperature: 374K
Habitability ScoreHabitable
65
Contributing Factors
water50
Limited water content
geology90
Active geology recycles nutrients and drives carbon cycle
rotation30
Very slow rotation - extreme temperature swings between eternal day and night sides
Organic Chemistry100
All CHNOPS elements present - building blocks of life (tidal pools cycle wet and dry - a boost for prebiotic chemistry)
atmosphere42
Nitrogen atmosphere provides protection but not breathable (partially stripped by slow rotation)
temperature40
Extreme temperature - very difficult for life
magnetic Field100
Magnetic field provides radiation protection

Physical Properties

Mass
1.00x Earth (5.97e+24 kg)
Radius
1.00x Earth (6,371 km)
This planet: 1.00× Earth radiusEarth: 1× (baseline)
Surface Gravity
1.00x Earth (9.8 m/s²)
Surface Temperature
374 K (101 °C / 213 °F)
Rotation Period
24.0 hours/day
This planet: 24 h/dayEarth: 24 h/day

Orbital Environment

Star Type
B-type (Blue Giant)
Distance from Star
72.10 AU (10.8 billion km)
Orbital Period
193.6 years

Atmosphere

Thin CO₂ and nitrogen atmosphere

Elemental Composition

O - Oxygen
20.7%
Si - Silicon
17.0%
Ar - Argon
12.6%

Surface Characteristics

Barren rocky surface with unusual elemental composition

Closest Real Exoplanet

Kepler-1512 b70% similar
Orbiting Kepler-1512
YoursKepler-1512 b
Mass1.00 × Earth1.76 × Earth
Radius1.01 × Earth1.18 × Earth
Density (composition)5.30 g/cm³5.90 g/cm³
Temperature374.0 K322.0 K
Starlight received1.92 × Earth1.60 × Earth
Star temperature20,000 K4,372 K
Discovered 2016 via transit · 528 light-years awaySource: NASA Exoplanet Archive
Moons
Moon 1rings0.11% - 2.1 radii

Inside the Roche limit (2.80 planet radii): torn apart into a ring system.

Moon 2receding0.056% - 41.4 radii

Outside the synchronous orbit: slowly receding, like Luna (~cm per year).

Moon 3stable0.010% - 7.5 radii

Small and distant: a quiet, stable companion.

+4 chemistry: tidal pools cycle wet and dry - a boost for prebiotic chemistry
Surface views from three worlds: rocky ground under a ringed sky, a cloud deck, and a lit desert

New: Stand on Your World 🏔️

Every planet you build can now be seen from the ground. The terrain, the color of the sky, the weather and what hangs overhead are all read from the same numbers that shape the globe — so a thin-aired world gives you sunlit rock under a near-black sky crowded with stars, a runaway greenhouse seals you under an unbroken sulfur lid, and a gas giant leaves you in the cloud tops with nothing solid beneath you at all. If one of your moons wandered inside the Roche limit, what is left of it arcs overhead as rings.

Sign in or create your account

Enter your email and we'll send a 6-digit code — no password needed.
We only keep your email and the username you choose. We never share or sell your email, and we don't send marketing — we use it only to email you a sign-in code. Learn more.

Send feedback

We're still building out the best experience we can — and we'd love your input. Tell us about features you enjoy, ideas you'd like to see, or pain points where something feels off, and we'll know where to look next.

Type