🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.42

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.51 AU - 0.73 AU

Year: 310 Days

Day: 43.3 Hours

Environment

Temp: -130 °C

Axial Tilt: 80.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 40,130,651 km

• M1: 42,935 km (0.061 R)
• M2: 526,136 km (0.093 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.58 AU - 0.7 AU

Year: 326 Days

Day: 35.2 Hours

Environment

Temp: -123 °C

Axial Tilt: 37.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.5

Radius: 14.1

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.93 AU - 1.35 AU

Year: 774 Days

Day: 6.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,130,651 km

• M1: 175,329 km (0.111 R)
• M2: 641,476 km (0.115 R)
• M3: 1,442,572 km (0.098 R)
• M4: 2,591,484 km (0.04 R)
• M5: 4,211,479 km (0.073 R)
• M6: 5,676,641 km (0.097 R)
• M7: 6,296,724 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.6

Radius: 10.8

Gravity: 6.98 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 3.75 AU - 5.21 AU

Year: 6029 Days

Day: 7.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 40,130,651 km

• M1: 134,339 km (0.045 R)
• M2: 579,243 km (0.106 R)
• M3: 952,340 km (0.115 R)
• M4: 1,373,308 km (0.085 R)
• M5: 1,918,443 km (0.059 R)
• M6: 2,866,146 km (0.116 R)
• M7: 3,489,520 km (0.069 R)
• M8: 3,881,616 km (0.112 R)
• M9: 4,226,589 km (0.102 R)
• M10: 5,209,297 km (0.082 R)
• M11: 9,774,426 km (0.061 R)
• M12: 11,383,351 km (0.043 R)
• M13: 14,760,224 km (0.099 R)
• M14: 15,179,247 km (0.107 R)
• M15: 15,791,551 km (0.117 R)
• M16: 17,929,754 km (0.085 R)
• M17: 19,033,038 km (0.077 R)
• M18: 21,374,544 km (0.087 R)
• M19: 22,144,075 km (0.056 R)
• M20: 26,446,360 km (0.074 R)
• M21: 26,976,086 km (0.107 R)
• M22: 27,512,993 km (0.081 R)
• M23: 32,468,273 km (0.116 R)
• M24: 34,522,701 km (0.1 R)

Planet 5 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 88.4

Radius: 8

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 9.02 AU - 11.78 AU

Year: 21325 Days

Day: 21.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 40,130,651 km

• M1: 99,782 km (0.101 R)
• M2: 400,922 km (0.085 R)
• M3: 1,386,772 km (0.092 R)
• M4: 2,078,214 km (0.025 R)
• M5: 2,419,746 km (0.106 R)
• M6: 5,441,024 km (0.107 R)
• M7: 5,991,993 km (0.096 R)
• M8: 6,508,555 km (0.057 R)
• M9: 6,832,584 km (0.047 R)
• M10: 7,319,525 km (0.098 R)
• M11: 10,642,692 km (0.1 R)
• M12: 12,631,147 km (0.075 R)
• M13: 13,364,775 km (0.113 R)
• M14: 15,041,019 km (0.11 R)
• M15: 21,138,179 km (0.094 R)
• M16: 24,338,227 km (0.099 R)
• M17: 24,683,649 km (0.109 R)
• M18: 27,379,552 km (0.086 R)
• M19: 28,894,829 km (0.116 R)
• M20: 29,771,323 km (0.084 R)
• M21: 34,856,603 km (0.058 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 247 - 11,724 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit