🌌 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 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 241.3

Radius: 12.8

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.47 AU - 0.75 AU

Year: 323 Days

Day: 11.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 24,447,611 km

• M1: 163,959 km (0.098 R)
• M2: 630,405 km (0.085 R)
• M3: 1,029,832 km (0.111 R)
• M4: 1,591,273 km (0.07 R)
• M5: 2,170,516 km (0.069 R)
• M6: 2,635,466 km (0.096 R)
• M7: 3,298,783 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.5

Radius: 11.1

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.85 AU - 0.87 AU

Year: 541 Days

Day: 7.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 24,447,611 km

• M1: 138,079 km (0.033 R)
• M2: 505,790 km (0.117 R)
• M3: 2,489,309 km (0.112 R)
• M4: 2,910,127 km (0.077 R)
• M5: 3,709,429 km (0.115 R)
• M6: 4,132,641 km (0.119 R)
• M7: 5,258,515 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.1

Radius: 10.6

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.74 AU - 1.2 AU

Year: 648 Days

Day: 7 Hours

Environment

Temp: -170 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 24,447,611 km

• M1: 132,095 km (0.091 R)
• M2: 523,144 km (0.105 R)
• M3: 938,427 km (0.111 R)
• M4: 1,322,595 km (0.1 R)
• M5: 2,001,919 km (0.074 R)
• M6: 2,473,152 km (0.12 R)
• M7: 2,877,066 km (0.046 R)
• M8: 3,211,866 km (0.06 R)
• M9: 3,735,908 km (0.066 R)
• M10: 4,533,115 km (0.084 R)
• M11: 5,457,779 km (0.077 R)
• M12: 5,898,794 km (0.083 R)
• M13: 6,284,457 km (0.096 R)
• M14: 6,894,517 km (0.114 R)
• M15: 7,322,816 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.7

Radius: 9.4

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.91 AU - 1.11 AU

Year: 688 Days

Day: 14.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 24,447,611 km

• M1: 119,828 km (0.064 R)
• M2: 432,487 km (0.116 R)
• M3: 770,728 km (0.115 R)
• M4: 1,134,849 km (0.107 R)
• M5: 1,908,121 km (0.118 R)
• M6: 2,442,484 km (0.064 R)
• M7: 2,745,420 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.1

Radius: 14.5

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.21 AU - 1.29 AU

Year: 948 Days

Day: 8.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 24,447,611 km

• M1: 180,265 km (0.07 R)
• M2: 709,842 km (0.057 R)
• M3: 1,370,316 km (0.059 R)
• M4: 2,017,626 km (0.113 R)
• M5: 2,504,568 km (0.099 R)
• M6: 3,083,362 km (0.062 R)
• M7: 4,227,636 km (0.06 R)
• M8: 4,881,079 km (0.073 R)
• M9: 6,288,795 km (0.116 R)
• M10: 6,792,342 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.4

Radius: 14.8

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.32 AU - 2.04 AU

Year: 1477 Days

Day: 13.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 24,447,611 km

• M1: 184,305 km (0.086 R)
• M2: 767,437 km (0.08 R)
• M3: 1,273,975 km (0.119 R)
• M4: 2,147,029 km (0.106 R)
• M5: 2,837,423 km (0.042 R)
• M6: 4,205,495 km (0.066 R)
• M7: 4,850,711 km (0.081 R)
• M8: 5,584,040 km (0.081 R)
• M9: 6,744,470 km (0.104 R)
• M10: 7,273,299 km (0.12 R)
• M11: 8,031,311 km (0.105 R)
• M12: 9,541,352 km (0.099 R)
• M13: 10,141,240 km (0.106 R)
• M14: 11,602,212 km (0.089 R)
• M15: 12,364,114 km (0.099 R)
• M16: 13,077,995 km (0.027 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 749.9

Radius: 4.8

Gravity: 32.55 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 5.86 AU - 8.44 AU

Year: 12967 Days

Day: 16.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 24,447,611 km

• M1: 59,690 km (0.118 R)
• M2: 213,925 km (0.09 R)
• M3: 603,179 km (0.042 R)
• M4: 860,936 km (0.077 R)
• M5: 2,889,932 km (0.11 R)
• M6: 3,987,082 km (0.079 R)
• M7: 9,611,962 km (0.079 R)
• M8: 11,042,567 km (0.087 R)
• M9: 11,509,911 km (0.041 R)
• M10: 12,421,410 km (0.048 R)
• M11: 13,643,924 km (0.117 R)
• M12: 19,931,074 km (0.053 R)
• M13: 20,448,683 km (0.088 R)
• M14: 21,600,885 km (0.111 R)
• M15: 21,872,705 km (0.075 R)
• M16: 22,516,125 km (0.096 R)
• M17: 25,416,529 km (0.105 R)
• M18: 26,643,231 km (0.112 R)
• M19: 31,945,728 km (0.072 R)
• M20: 37,778,848 km (0.107 R)
• M21: 38,173,637 km (0.071 R)
• M22: 46,808,276 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 20.3

Radius: 5.4

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 9.43 AU - 10.39 AU

Year: 21159 Days

Day: 24.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 178.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 24,447,611 km

• M1: 67,319 km (0.101 R)
• M2: 296,204 km (0.116 R)
• M3: 6,824,655 km (0.087 R)
• M4: 7,699,354 km (0.067 R)
• M5: 8,719,611 km (0.092 R)
• M6: 14,007,597 km (0.117 R)
• M7: 15,252,251 km (0.07 R)
• M8: 15,682,943 km (0.115 R)
• M9: 20,511,663 km (0.057 R)
• M10: 23,723,530 km (0.067 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 226 - 11,983 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit