🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.9

Radius: 8.4

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.65 AU - 0.85 AU

Year: 433 Days

Day: 7.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 55,686,319 km

• M1: 104,419 km (0.032 R)
• M2: 407,953 km (0.051 R)
• M3: 686,355 km (0.043 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189.4

Radius: 14.2

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.92 AU - 1.16 AU

Year: 707 Days

Day: 8.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 55,686,319 km

• M1: 178,919 km (0.106 R)
• M2: 719,566 km (0.114 R)
• M3: 1,581,698 km (0.095 R)
• M4: 2,235,441 km (0.106 R)
• M5: 2,820,518 km (0.117 R)
• M6: 3,542,029 km (0.095 R)
• M7: 4,303,482 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.8

Radius: 12.1

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.52 AU - 1.84 AU

Year: 1452 Days

Day: 6 Hours

Environment

Temp: -193 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,686,319 km

• M1: 150,495 km (0.053 R)
• M2: 663,467 km (0.109 R)
• M3: 1,195,437 km (0.111 R)
• M4: 1,695,393 km (0.087 R)
• M5: 2,492,001 km (0.076 R)
• M6: 2,955,605 km (0.101 R)
• M7: 3,620,268 km (0.069 R)
• M8: 4,006,081 km (0.068 R)
• M9: 5,504,005 km (0.109 R)
• M10: 7,138,212 km (0.111 R)
• M11: 8,137,675 km (0.055 R)
• M12: 9,258,762 km (0.096 R)
• M13: 9,792,677 km (0.095 R)
• M14: 10,413,508 km (0.066 R)
• M15: 11,095,225 km (0.085 R)
• M16: 11,770,061 km (0.101 R)
• M17: 12,322,227 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.2

Radius: 9.7

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.37 AU - 2.13 AU

Year: 1544 Days

Day: 6.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,686,319 km

• M1: 120,725 km (0.108 R)
• M2: 481,256 km (0.108 R)
• M3: 878,289 km (0.101 R)
• M4: 1,775,727 km (0.062 R)
• M5: 3,030,254 km (0.118 R)
• M6: 4,431,388 km (0.108 R)
• M7: 5,059,101 km (0.052 R)
• M8: 6,683,135 km (0.04 R)
• M9: 7,076,727 km (0.04 R)
• M10: 7,934,671 km (0.05 R)
• M11: 8,451,681 km (0.03 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.3

Radius: 10

Gravity: 6.77 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 2.21 AU - 2.75 AU

Year: 2604 Days

Day: 11.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,686,319 km

• M1: 124,615 km (0.103 R)
• M2: 472,430 km (0.118 R)
• M3: 838,945 km (0.094 R)
• M4: 1,353,562 km (0.114 R)
• M5: 1,783,955 km (0.053 R)
• M6: 3,432,374 km (0.088 R)
• M7: 4,018,199 km (0.054 R)
• M8: 5,814,869 km (0.086 R)
• M9: 6,181,833 km (0.029 R)
• M10: 6,704,827 km (0.109 R)
• M11: 7,020,778 km (0.083 R)
• M12: 15,290,698 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.5

Radius: 11

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 2.88 AU - 3.2 AU

Year: 3535 Days

Day: 13.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,686,319 km

• M1: 136,882 km (0.067 R)
• M2: 744,698 km (0.113 R)
• M3: 1,520,962 km (0.108 R)
• M4: 1,971,401 km (0.079 R)
• M5: 3,492,811 km (0.102 R)
• M6: 4,530,721 km (0.083 R)
• M7: 6,117,655 km (0.041 R)
• M8: 7,083,459 km (0.099 R)
• M9: 7,458,950 km (0.106 R)
• M10: 9,132,202 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.1

Radius: 12.1

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 2.77 AU - 4.27 AU

Year: 4404 Days

Day: 5.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 55,686,319 km

• M1: 150,495 km (0.092 R)
• M2: 837,748 km (0.089 R)
• M3: 1,641,238 km (0.099 R)
• M4: 2,330,735 km (0.05 R)
• M5: 3,397,218 km (0.063 R)
• M6: 3,902,111 km (0.098 R)
• M7: 4,287,176 km (0.101 R)
• M8: 5,205,856 km (0.106 R)
• M9: 5,776,273 km (0.12 R)
• M10: 7,072,090 km (0.092 R)
• M11: 7,524,025 km (0.106 R)
• M12: 8,254,511 km (0.112 R)
• M13: 10,193,449 km (0.098 R)
• M14: 11,782,777 km (0.051 R)
• M15: 12,592,999 km (0.031 R)
• M16: 13,034,163 km (0.089 R)
• M17: 14,420,038 km (0.092 R)
• M18: 15,198,246 km (0.099 R)
• M19: 15,648,087 km (0.032 R)
• M20: 17,537,358 km (0.042 R)
• M21: 18,480,573 km (0.101 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.4

Radius: 10.6

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 3.87 AU - 3.99 AU

Year: 5195 Days

Day: 9.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,686,319 km

• M1: 132,394 km (0.099 R)
• M2: 553,363 km (0.085 R)
• M3: 1,112,559 km (0.087 R)
• M4: 2,931,969 km (0.119 R)
• M5: 3,486,079 km (0.118 R)
• M6: 4,585,624 km (0.109 R)
• M7: 4,984,302 km (0.083 R)
• M8: 7,160,502 km (0.114 R)
• M9: 8,490,577 km (0.102 R)
• M10: 9,335,954 km (0.069 R)
• M11: 10,125,532 km (0.115 R)
• M12: 11,432,568 km (0.041 R)
• M13: 15,876,373 km (0.103 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.8

Radius: 8.6

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 3.46 AU - 5.04 AU

Year: 5843 Days

Day: 12.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,686,319 km

• M1: 107,112 km (0.11 R)
• M2: 1,204,562 km (0.085 R)
• M3: 1,476,381 km (0.12 R)
• M4: 2,298,721 km (0.049 R)
• M5: 2,694,258 km (0.073 R)
• M6: 4,377,682 km (0.086 R)
• M7: 5,371,461 km (0.11 R)
• M8: 6,248,553 km (0.089 R)
• M9: 15,047,601 km (0.12 R)
• M10: 15,753,703 km (0.104 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 475.3

Radius: 7.5

Gravity: 8.45 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 7.35 AU - 8.61 AU

Year: 15033 Days

Day: 24.5 Hours

Environment

Temp: -237 °C

Axial Tilt: 148.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 55,686,319 km

• M1: 93,349 km (0.095 R)
• M2: 439,519 km (0.038 R)
• M3: 1,093,112 km (0.036 R)
• M4: 3,841,374 km (0.112 R)
• M5: 5,902,085 km (0.042 R)
• M6: 7,910,137 km (0.039 R)
• M7: 16,221,795 km (0.11 R)
• M8: 19,656,263 km (0.066 R)
• M9: 26,985,661 km (0.08 R)
• M10: 28,878,373 km (0.058 R)
• M11: 29,637,732 km (0.084 R)
• M12: 30,745,504 km (0.116 R)
• M13: 42,124,816 km (0.091 R)
• M14: 44,665,885 km (0.119 R)
• M15: 48,971,611 km (0.041 R)
• M16: 51,146,016 km (0.113 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 272 - 15,734 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit