🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.8

Radius: 12.4

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.61 AU - 0.99 AU

Year: 494 Days

Day: 13.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 84,881,413 km

• M1: 154,385 km (0.117 R)
• M2: 583,282 km (0.099 R)
• M3: 973,733 km (0.099 R)
• M4: 1,466,059 km (0.111 R)
• M5: 2,019,122 km (0.066 R)
• M6: 2,435,603 km (0.081 R)
• M7: 2,920,300 km (0.11 R)
• M8: 3,399,761 km (0.068 R)
• M9: 3,881,018 km (0.102 R)
• M10: 4,574,852 km (0.106 R)
• M11: 5,349,769 km (0.051 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.2

Radius: 12.6

Gravity: 6.11 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.77 AU - 1.01 AU

Year: 580 Days

Day: 12.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 84,881,413 km

• M1: 156,779 km (0.119 R)
• M2: 550,670 km (0.083 R)
• M3: 1,025,493 km (0.097 R)
• M4: 1,559,857 km (0.066 R)
• M5: 2,133,266 km (0.115 R)
• M6: 2,798,976 km (0.084 R)
• M7: 3,451,672 km (0.082 R)
• M8: 3,965,989 km (0.1 R)
• M9: 4,531,170 km (0.075 R)
• M10: 5,237,421 km (0.111 R)
• M11: 5,766,998 km (0.084 R)
• M12: 6,998,637 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268.3

Radius: 12.3

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.82 AU - 1.14 AU

Year: 670 Days

Day: 14.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 84,881,413 km

• M1: 153,487 km (0.109 R)
• M2: 756,367 km (0.117 R)
• M3: 1,567,486 km (0.028 R)
• M4: 2,406,880 km (0.099 R)
• M5: 3,337,528 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.7

Radius: 13.9

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.46 AU - 1.64 AU

Year: 1332 Days

Day: 10.6 Hours

Environment

Temp: -185 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 84,881,413 km

• M1: 172,935 km (0.045 R)
• M2: 653,743 km (0.066 R)
• M3: 1,207,255 km (0.119 R)
• M4: 1,919,490 km (0.12 R)
• M5: 3,952,226 km (0.07 R)
• M6: 4,689,444 km (0.118 R)
• M7: 5,244,303 km (0.114 R)
• M8: 6,067,540 km (0.109 R)
• M9: 7,754,555 km (0.086 R)
• M10: 8,221,450 km (0.043 R)
• M11: 10,086,038 km (0.117 R)
• M12: 10,576,719 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 326.1

Radius: 11.5

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.45 AU - 2.33 AU

Year: 1794 Days

Day: 13.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 84,881,413 km

• M1: 143,016 km (0.078 R)
• M2: 829,969 km (0.108 R)
• M3: 1,193,342 km (0.117 R)
• M4: 1,666,520 km (0.038 R)
• M5: 2,153,461 km (0.026 R)
• M6: 3,328,104 km (0.109 R)
• M7: 4,193,976 km (0.078 R)
• M8: 4,661,619 km (0.085 R)
• M9: 5,919,139 km (0.088 R)
• M10: 6,698,544 km (0.07 R)
• M11: 7,441,896 km (0.072 R)
• M12: 7,967,433 km (0.09 R)
• M13: 9,510,984 km (0.099 R)
• M14: 10,321,505 km (0.037 R)
• M15: 10,975,996 km (0.105 R)
• M16: 11,553,743 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.1

Radius: 12.2

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.12 AU - 3.14 AU

Year: 2944 Days

Day: 14.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 84,881,413 km

• M1: 151,991 km (0.106 R)
• M2: 544,087 km (0.066 R)
• M3: 1,018,612 km (0.074 R)
• M4: 1,400,086 km (0.073 R)
• M5: 1,912,758 km (0.059 R)
• M6: 2,416,604 km (0.084 R)
• M7: 2,888,585 km (0.119 R)
• M8: 4,286,877 km (0.097 R)
• M9: 4,919,526 km (0.115 R)
• M10: 6,371,673 km (0.107 R)
• M11: 7,224,829 km (0.097 R)
• M12: 8,899,278 km (0.103 R)
• M13: 9,322,491 km (0.11 R)
• M14: 12,032,905 km (0.073 R)
• M15: 15,602,160 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 728.5

Radius: 7.6

Gravity: 12.61 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 8.68 AU - 11.94 AU

Year: 22851 Days

Day: 23.1 Hours

Environment

Temp: -246 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 84,881,413 km

• M1: 98,136 km (0.119 R)
• M2: 358,436 km (0.085 R)
• M3: 723,156 km (0.052 R)
• M4: 972,985 km (0.114 R)
• M5: 2,098,858 km (0.103 R)
• M6: 4,050,362 km (0.116 R)
• M7: 4,710,239 km (0.074 R)
• M8: 8,729,784 km (0.062 R)
• M9: 14,984,471 km (0.117 R)
• M10: 16,809,116 km (0.102 R)
• M11: 17,508,037 km (0.056 R)
• M12: 18,135,151 km (0.071 R)
• M13: 18,870,126 km (0.118 R)
• M14: 19,529,404 km (0.119 R)
• M15: 21,701,565 km (0.094 R)
• M16: 22,951,904 km (0.054 R)
• M17: 38,651,901 km (0.051 R)
• M18: 43,995,687 km (0.101 R)
• M19: 49,811,603 km (0.091 R)
• M20: 50,168,843 km (0.04 R)
• M21: 61,083,653 km (0.11 R)
• M22: 68,073,763 km (0.102 R)
• M23: 80,630,410 km (0.096 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: 392 - 20,085 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit