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Entering orbit…
Habitability
50/ 100
Marginal

Nebula Remnants I

by Stargazer
0

Rocky Terrestrial

✦ Stargazer Nebula
Magnetic FieldHigh Activity
Why is this a Rocky Terrestrial?Your planet is dominated by silicate (21.3%) and iron (21.3%) 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: 21.3% + Iron: 21.3% + Magnesium: 8.5%✓ Mass: 1.4x Earth (terrestrial range)
Habitability ScoreMarginal
50
Contributing Factors
water50
Limited water content — shielded under ice and rock, a subsurface refuge could outlast the blast
geology90
Active geology recycles nutrients and drives carbon cycle
rotation100
Optimal rotation period - balanced day/night cycle, moderate weather, and good heat distribution
Organic Chemistry80
Core organic elements (CHNO) present
atmosphere70
Nitrogen atmosphere provides protection but not breathable
temperature100
Optimal temperature range for liquid water and life
magnetic Field100
Magnetic field provides radiation protection — but the remnant's shock fronts flood this orbit with cosmic rays

Physical Properties

Mass
1.40x Earth (8.36e+24 kg)
Radius
1.12x Earth (7,127 km)
This planet: 1.12× Earth radiusEarth: 1× (baseline)
Surface Gravity
1.12x Earth (11.0 m/s²)
Surface Temperature
277 K (4 °C / 40 °F)
Rotation Period
21.0 hours/day (faster than Earth)
This planet: 21 h/dayEarth: 24 h/day

Orbital Environment

Star Type
SNR-type (Supernova Remnant)
Distance from Star
0.71 AU (106 million km)
Orbital Period
185 days

Atmosphere

Thin CO₂ and nitrogen atmosphere

Elemental Composition

O - Oxygen
23.4%
Fe - Iron
21.3%
Si - Silicon
21.3%

Surface Characteristics

Rocky surface with impact craters, possible volcanic features

Closest Real Exoplanet

TOI-700 d95% similar
Orbiting TOI-700
YoursTOI-700 d
Mass1.40 × Earth1.25 × Earth
Radius1.11 × Earth1.07 × Earth
Density (composition)5.65 g/cm³5.62 g/cm³
Temperature277.4 K269.0 K
Starlight received0.99 × Earth0.85 × Earth
Star temperature— 3,459 K
Discovered 2020 via transit · 101 light-years awaySource: NASA Exoplanet Archive
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.

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