Habitability
30/ 100
Extremely Harsh

Dark Bramble

by Starbuilder123
0
Low Activity
Why is this a Ice World?Your planet orbits at 2.76 AU from its star, resulting in frigid temperatures of 179K.
Ice worlds form beyond the frost line where temperatures are low enough for water and other volatiles to freeze solid. They may have subsurface oceans beneath thick ice shells.
Classification Criteria:
✓ Distance: 2.76 AU (>3 AU) or Temperature <200K✓ Temperature: 179K✓ Water content: 44.1% for ice formation
Habitability ScoreExtremely Harsh
30
Contributing Factors
water60
Water present but mostly frozen
geology60
Some geological activity provides slow nutrient cycling
rotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only
Organic Chemistry80
Core organic elements (CHNO) present
atmosphere28
Nitrogen atmosphere provides protection but not breathable (partially stripped by slow rotation)
temperature20
Very cold - water frozen, challenging for life
magnetic Field30
No magnetic field - vulnerable to solar radiation

Physical Properties

Mass
0.80x Earth (4.78e+24 kg)
Radius
0.93x Earth (5,914 km)
This planet: 0.93× Earth radiusEarth: 1× (baseline)
Surface Gravity
0.93x Earth (9.1 m/s²)
Surface Temperature
179 K (-94 °C / -138 °F)
Rotation Period
2,000.0 hours/day (slower than Earth)
This planet: 2000 h/dayEarth: 24 h/day

Orbital Environment

Star Type
G-type (Yellow (Sun-like))
Distance from Star
2.76 AU (413 million km)

Atmosphere

Thin nitrogen and methane atmosphere

Elemental Composition

O - Oxygen
35.3%
H - Hydrogen
17.6%
Si - Silicon
17.6%

Surface Characteristics

Frozen surface covered in water ice, possible subsurface ocean if tidal heating present

Closest Real Exoplanet

Teegarden's Star d86% similar
Orbiting Teegarden's Star
YoursTeegarden's Star d
Mass0.80 × Earth0.82 × Earth
Radius0.93 × Earth0.95 × Earth
Temperature178.7 K159.0 K
Starlight received0.13 × Earth0.12 × Earth
Star temperature5,600 K3,034 K
Discovered 2024 via radial velocity · 12 light-years awaySource: NASA Exoplanet Archive