🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.43 AU - 0.65 AU

Year: 139 Days

Day: 37.9 Hours

Environment

Temp: 205 °C

Axial Tilt: 6.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.5

Radius: 1.83

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.51 AU - 0.73 AU

Year: 172 Days

Day: 27 Hours

Environment

Temp: 185 °C

Axial Tilt: 23.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.11

Radius: 1.04

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.9 AU - 1.16 AU

Year: 367 Days

Day: 21.9 Hours

Environment

Temp: 73 °C

Axial Tilt: 16.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.41

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.41 AU - 1.79 AU

Year: 711 Days

Day: 38.2 Hours

Environment

Temp: -34 °C

Axial Tilt: 27.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.96

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.93 AU - 2.63 AU

Year: 1210 Days

Day: 27.4 Hours

Environment

Temp: -69 °C

Axial Tilt: 38 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.06 AU - 2.82 AU

Year: 1340 Days

Day: 34.8 Hours

Environment

Temp: -83 °C

Axial Tilt: 28.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 27,979,914 km

• M1: 64,177 km (0.079 R)

Planet 7 - Terrestrial

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.5 AU - 2.84 AU

Year: 1533 Days

Day: 24.8 Hours

Environment

Temp: -78 °C

Axial Tilt: 32.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 27,979,914 km

• M1: 43,982 km (0.035 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.3

Radius: 12.4

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 4.87 AU - 6.21 AU

Year: 4583 Days

Day: 14 Hours

Environment

Temp: -146 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 27,979,914 km

• M1: 154,834 km (0.115 R)
• M2: 946,506 km (0.092 R)
• M3: 1,514,230 km (0.098 R)
• M4: 2,079,859 km (0.032 R)
• M5: 3,096,078 km (0.115 R)
• M6: 3,793,054 km (0.086 R)
• M7: 4,226,439 km (0.108 R)
• M8: 5,331,818 km (0.038 R)
• M9: 7,356,026 km (0.1 R)
• M10: 10,147,672 km (0.047 R)
• M11: 11,496,447 km (0.066 R)
• M12: 13,165,809 km (0.068 R)
• M13: 17,410,499 km (0.085 R)
• M14: 17,974,483 km (0.082 R)
• M15: 19,807,656 km (0.115 R)
• M16: 21,546,881 km (0.051 R)
• M17: 22,270,336 km (0.062 R)
• M18: 23,689,571 km (0.044 R)
• M19: 26,460,423 km (0.119 R)
• M20: 27,122,842 km (0.045 R)
• M21: 29,528,825 km (0.083 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.1

Radius: 12.5

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 5.19 AU - 6.61 AU

Year: 5037 Days

Day: 10.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,979,914 km

• M1: 156,928 km (0.092 R)
• M2: 588,668 km (0.085 R)
• M3: 1,798,017 km (0.11 R)
• M4: 3,075,433 km (0.081 R)
• M5: 4,745,693 km (0.098 R)
• M6: 5,555,467 km (0.109 R)
• M7: 7,577,132 km (0.042 R)
• M8: 8,613,696 km (0.11 R)
• M9: 9,742,412 km (0.11 R)
• M10: 11,215,951 km (0.089 R)
• M11: 17,296,655 km (0.099 R)
• M12: 19,388,632 km (0.046 R)
• M13: 20,810,410 km (0.033 R)

Planet 10 - Gas Giant

Semi-Major Axis: 6.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.1

Radius: 11.9

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 5.66 AU - 6.36 AU

Year: 5178 Days

Day: 7.9 Hours

Environment

Temp: -137 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,979,914 km

• M1: 148,102 km (0.075 R)
• M2: 671,844 km (0.034 R)
• M3: 1,051,523 km (0.055 R)
• M4: 1,615,657 km (0.051 R)
• M5: 3,585,412 km (0.056 R)
• M6: 3,971,823 km (0.116 R)
• M7: 4,854,750 km (0.106 R)
• M8: 5,578,355 km (0.104 R)
• M9: 6,159,692 km (0.072 R)
• M10: 7,041,273 km (0.082 R)
• M11: 7,756,051 km (0.08 R)
• M12: 10,321,206 km (0.1 R)
• M13: 11,889,590 km (0.079 R)
• M14: 13,304,935 km (0.064 R)
• M15: 14,558,865 km (0.111 R)
• M16: 15,832,990 km (0.069 R)
• M17: 19,374,420 km (0.113 R)
• M18: 21,190,538 km (0.088 R)
• M19: 21,679,275 km (0.062 R)
• M20: 26,023,746 km (0.109 R)

Kuiper Belt

Range: 31.2 - 52.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 164 - 11,130 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit