🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.14

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.45 AU - 0.69 AU

Year: 164 Days

Day: 32 Hours

Environment

Temp: 143 °C

Axial Tilt: 168.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.01 AU - 1.35 AU

Year: 488 Days

Day: 38 Hours

Environment

Temp: -24 °C

Axial Tilt: 48.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.03

Radius: 1.01

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.04 AU - 1.5 AU

Year: 545 Days

Day: 47.2 Hours

Environment

Temp: -42 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.24 AU - 1.54 AU

Year: 624 Days

Day: 44.3 Hours

Environment

Temp: -46 °C

Axial Tilt: 1.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.45

Radius: 0.73

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.57 AU - 1.89 AU

Year: 866 Days

Day: 17.6 Hours

Environment

Temp: -65 °C

Axial Tilt: 45.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.67 AU - 2.11 AU

Year: 989 Days

Day: 23.5 Hours

Environment

Temp: -67 °C

Axial Tilt: 18.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 89,215,467 km

• M1: 1,517,072 km (0.119 R)

Planet 7 - Terrestrial

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.87

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 2.55 AU - 2.59 AU

Year: 1569 Days

Day: 41.6 Hours

Environment

Temp: -104 °C

Axial Tilt: 18.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.85 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 9.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.1

Radius: 8.2

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 7.26 AU - 10.98 AU

Year: 10488 Days

Day: 9.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 89,215,467 km

• M1: 102,026 km (0.095 R)
• M2: 397,332 km (0.032 R)
• M3: 965,804 km (0.117 R)
• M4: 1,553,424 km (0.12 R)
• M5: 1,987,707 km (0.059 R)
• M6: 2,258,928 km (0.091 R)
• M7: 2,628,435 km (0.118 R)
• M8: 3,356,079 km (0.072 R)
• M9: 4,607,914 km (0.111 R)
• M10: 5,029,181 km (0.107 R)
• M11: 6,586,944 km (0.04 R)
• M12: 7,457,005 km (0.107 R)
• M13: 8,158,170 km (0.094 R)
• M14: 8,691,487 km (0.06 R)
• M15: 9,827,533 km (0.09 R)
• M16: 10,526,454 km (0.077 R)
• M17: 11,257,988 km (0.075 R)
• M18: 11,867,300 km (0.09 R)
• M19: 12,552,009 km (0.085 R)
• M20: 12,876,786 km (0.071 R)
• M21: 17,558,452 km (0.081 R)
• M22: 19,221,980 km (0.085 R)
• M23: 20,165,793 km (0.032 R)
• M24: 21,369,308 km (0.068 R)
• M25: 23,671,619 km (0.112 R)
• M26: 26,134,299 km (0.041 R)
• M27: 27,111,473 km (0.072 R)
• M28: 34,013,021 km (0.109 R)
• M29: 35,607,285 km (0.118 R)
• M30: 36,368,140 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 611.3

Radius: 3.9

Gravity: 40.19 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 12.91 AU - 21.25 AU

Year: 26880 Days

Day: 24.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 89,215,467 km

• M1: 54,154 km (0.114 R)
• M2: 180,565 km (0.048 R)
• M3: 309,219 km (0.096 R)
• M4: 526,435 km (0.107 R)
• M5: 1,327,980 km (0.084 R)
• M6: 1,526,945 km (0.117 R)
• M7: 1,689,110 km (0.053 R)
• M8: 1,923,230 km (0.073 R)
• M9: 2,090,929 km (0.046 R)
• M10: 2,553,636 km (0.103 R)
• M11: 4,243,493 km (0.095 R)
• M12: 4,528,627 km (0.104 R)
• M13: 4,788,329 km (0.096 R)
• M14: 4,979,964 km (0.099 R)
• M15: 5,216,627 km (0.099 R)
• M16: 6,060,060 km (0.089 R)
• M17: 6,239,129 km (0.062 R)
• M18: 7,853,140 km (0.11 R)
• M19: 9,071,764 km (0.082 R)
• M20: 9,365,275 km (0.05 R)
• M21: 9,786,842 km (0.112 R)
• M22: 11,127,688 km (0.111 R)
• M23: 13,702,716 km (0.12 R)
• M24: 14,324,445 km (0.107 R)
• M25: 14,562,306 km (0.075 R)
• M26: 16,216,409 km (0.109 R)
• M27: 16,648,597 km (0.097 R)
• M28: 18,083,540 km (0.082 R)
• M29: 20,287,715 km (0.117 R)
• M30: 23,313,631 km (0.073 R)
• M31: 28,583,067 km (0.028 R)
• M32: 38,119,033 km (0.027 R)
• M33: 40,124,991 km (0.079 R)
• M34: 49,753,858 km (0.088 R)
• M35: 55,975,933 km (0.081 R)
• M36: 61,228,613 km (0.091 R)
• M37: 63,546,184 km (0.107 R)
• M38: 66,140,659 km (0.096 R)
• M39: 67,686,155 km (0.12 R)
• M40: 76,256,916 km (0.086 R)
• M41: 82,948,279 km (0.101 R)
• M42: 83,203,344 km (0.081 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 433 - 17,132 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit