🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.75 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.32 AU - 1.66 AU

Year: 661 Days

Day: 32.5 Hours

Environment

Temp: -39 °C

Axial Tilt: 27.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.23

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.99 AU - 2.79 AU

Year: 1343 Days

Day: 13.6 Hours

Environment

Temp: -92 °C

Axial Tilt: 0.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.11

Radius: 1.04

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 2.54 AU - 2.54 AU

Year: 1471 Days

Day: 28.5 Hours

Environment

Temp: -85 °C

Axial Tilt: 16.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 42,278,740 km

• M1: 603,179 km (0.102 R)

Asteroid Belt

Center: 4.03 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.2

Radius: 14.5

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 4.95 AU - 6.09 AU

Year: 4713 Days

Day: 13.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,278,740 km

• M1: 180,265 km (0.096 R)
• M2: 902,075 km (0.074 R)
• M3: 1,934,749 km (0.093 R)
• M4: 2,455,200 km (0.099 R)
• M5: 2,942,441 km (0.098 R)
• M6: 4,394,138 km (0.088 R)
• M7: 5,334,062 km (0.109 R)
• M8: 6,716,944 km (0.119 R)
• M9: 10,267,351 km (0.112 R)
• M10: 19,470,013 km (0.104 R)
• M11: 20,944,599 km (0.097 R)
• M12: 26,452,943 km (0.099 R)
• M13: 27,593,926 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259

Radius: 9.6

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 4.49 AU - 7.47 AU

Year: 5315 Days

Day: 9.9 Hours

Environment

Temp: -142 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,278,740 km

• M1: 120,127 km (0.119 R)
• M2: 962,363 km (0.095 R)
• M3: 1,274,574 km (0.099 R)
• M4: 1,994,439 km (0.091 R)
• M5: 2,468,066 km (0.104 R)
• M6: 3,903,756 km (0.097 R)
• M7: 4,243,044 km (0.112 R)
• M8: 7,746,627 km (0.118 R)
• M9: 8,147,998 km (0.066 R)
• M10: 10,089,329 km (0.12 R)
• M11: 18,082,044 km (0.108 R)
• M12: 18,729,803 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.1

Radius: 8.8

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 5.98 AU - 6.58 AU

Year: 5720 Days

Day: 10.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 42,278,740 km

• M1: 109,506 km (0.106 R)
• M2: 478,564 km (0.054 R)
• M3: 1,482,066 km (0.088 R)
• M4: 1,810,134 km (0.114 R)
• M5: 2,955,156 km (0.08 R)
• M6: 3,401,856 km (0.111 R)
• M7: 4,044,827 km (0.051 R)
• M8: 5,067,777 km (0.086 R)
• M9: 5,516,721 km (0.091 R)
• M10: 5,991,993 km (0.031 R)
• M11: 6,647,232 km (0.089 R)
• M12: 7,250,859 km (0.091 R)
• M13: 7,616,626 km (0.08 R)
• M14: 9,282,099 km (0.085 R)
• M15: 12,782,390 km (0.118 R)
• M16: 13,917,389 km (0.025 R)
• M17: 17,427,703 km (0.088 R)
• M18: 18,085,335 km (0.075 R)
• M19: 18,450,953 km (0.073 R)
• M20: 21,149,848 km (0.113 R)
• M21: 22,523,156 km (0.102 R)
• M22: 23,303,309 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 110

Radius: 3.2

Gravity: 10.74 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 14.32 AU - 15.26 AU

Year: 20672 Days

Day: 22.4 Hours

Environment

Temp: -196 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,278,740 km

• M1: 60,587 km (0.073 R)
• M2: 262,245 km (0.094 R)
• M3: 393,143 km (0.112 R)
• M4: 594,951 km (0.088 R)
• M5: 1,027,887 km (0.109 R)
• M6: 4,071,306 km (0.082 R)
• M7: 6,399,647 km (0.045 R)
• M8: 8,539,495 km (0.116 R)
• M9: 9,533,274 km (0.102 R)
• M10: 11,693,318 km (0.093 R)
• M11: 11,855,182 km (0.119 R)
• M12: 14,840,408 km (0.118 R)
• M13: 17,930,651 km (0.085 R)
• M14: 18,728,457 km (0.066 R)
• M15: 21,263,243 km (0.097 R)
• M16: 22,821,454 km (0.061 R)
• M17: 26,532,978 km (0.107 R)
• M18: 26,812,576 km (0.104 R)
• M19: 28,531,007 km (0.095 R)
• M20: 40,900,058 km (0.078 R)

Kuiper Belt

Range: 30.2 - 47.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 203 - 13,082 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit