Habitability
5/ 100
Uninhabitable

Neutron Planet I

by Stargazer
0

Rocky Terrestrial

None Activity
Why is this a Rocky Terrestrial?Your planet is dominated by silicate (41.1%) and iron (27.4%) content, forming a rocky terrestrial body.
Rocky terrestrial planets are primarily composed of silicate rocks and metals. They're the most common type of small planet in the universe.
Classification Criteria:
✓ Silicon: 41.1% + Iron: 27.4% + Magnesium: 13.7%✓ Mass: 0.3x Earth (terrestrial range)
Habitability ScoreUninhabitable
5
Contributing Factors
water0
No water - the recipe has no hydrogen and oxygen to form it
geology30
Geologically dead - no nutrient recycling
rotation100
Optimal rotation period - balanced day/night cycle, moderate weather, and good heat distribution
Organic Chemistry20
Limited organic chemistry potential
atmosphere50
CO₂ atmosphere with moderate greenhouse effect
temperature100
Optimal temperature range for liquid water and life
magnetic Field30
No magnetic field - vulnerable to solar radiation — but the pulsar's beams bathe this orbit in hard X-rays

Physical Properties

Mass
0.30x Earth (1.79e+24 kg)
Radius
0.67x Earth (4,265 km)
This planet: 0.67× Earth radiusEarth: 1× (baseline)
Surface Gravity
0.67x Earth (6.6 m/s²)
Surface Temperature
278 K (5 °C / 41 °F)
Rotation Period
30.0 hours/day (slower than Earth)
This planet: 30 h/dayEarth: 24 h/day

Orbital Environment

Star Type
NS-type (Neutron Star)
Distance from Star
0.10 AU (15 million km)

Atmosphere

Thin CO₂ atmosphere

Elemental Composition

Si - Silicon
41.1%
Fe - Iron
27.4%
O - Oxygen
13.7%

Surface Characteristics

Rocky surface with impact craters, possible volcanic features

Closest Real Exoplanet

TRAPPIST-1 d90% similar
Orbiting TRAPPIST-1
YoursTRAPPIST-1 d
Mass0.30 × Earth0.39 × Earth
Radius0.67 × Earth0.79 × Earth
Temperature278.0 K286.0 K
Starlight received1.00 × Earth1.11 × Earth
Star temperature 2,566 K
Matched on physical properties only — but pulsar planets are real: the first exoplanets ever confirmed (PSR B1257+12, 1992) orbit a neutron star.Discovered 2016 via transit · 40 light-years awaySource: NASA Exoplanet Archive
Moons
Moon 1rings0.51% - 2.5 radii

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