🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.4

Radius: 11

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.51 AU - 0.83 AU

Year: 379 Days

Day: 6.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,818,949 km

• M1: 136,882 km (0.094 R)
• M2: 480,658 km (0.113 R)
• M3: 866,471 km (0.09 R)
• M4: 1,277,416 km (0.118 R)
• M5: 1,886,130 km (0.075 R)
• M6: 2,538,526 km (0.099 R)
• M7: 3,138,115 km (0.074 R)
• M8: 3,576,885 km (0.08 R)
• M9: 4,863,876 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 979

Radius: 14.7

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.69 AU - 0.75 AU

Year: 422 Days

Day: 9 Hours

Environment

Temp: -164 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,818,949 km

• M1: 182,809 km (0.092 R)
• M2: 777,759 km (0.106 R)
• M3: 1,354,160 km (0.118 R)
• M4: 2,103,795 km (0.041 R)
• M5: 2,822,613 km (0.048 R)
• M6: 3,625,056 km (0.097 R)
• M7: 4,471,780 km (0.084 R)
• M8: 4,974,428 km (0.107 R)
• M9: 5,861,394 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.7

Radius: 14.3

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.8 AU - 1.12 AU

Year: 649 Days

Day: 9 Hours

Environment

Temp: -177 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,818,949 km

• M1: 178,021 km (0.115 R)
• M2: 723,007 km (0.085 R)
• M3: 1,224,608 km (0.11 R)
• M4: 1,856,360 km (0.088 R)
• M5: 2,626,939 km (0.067 R)
• M6: 3,357,425 km (0.106 R)
• M7: 4,176,174 km (0.083 R)
• M8: 4,713,081 km (0.053 R)
• M9: 5,560,403 km (0.096 R)
• M10: 6,059,013 km (0.119 R)
• M11: 6,627,634 km (0.086 R)
• M12: 7,361,562 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.7

Radius: 14.9

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.84 AU - 1.36 AU

Year: 796 Days

Day: 7.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,818,949 km

• M1: 185,501 km (0.099 R)
• M2: 718,668 km (0.098 R)
• M3: 1,319,004 km (0.091 R)
• M4: 1,796,820 km (0.088 R)
• M5: 2,812,889 km (0.08 R)
• M6: 3,917,220 km (0.063 R)
• M7: 4,562,735 km (0.109 R)
• M8: 5,202,416 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.9

Radius: 11.1

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.25 AU - 1.59 AU

Year: 1168 Days

Day: 12.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 37,818,949 km

• M1: 138,079 km (0.083 R)
• M2: 491,429 km (0.111 R)
• M3: 1,059,153 km (0.079 R)
• M4: 1,573,620 km (0.072 R)
• M5: 1,989,053 km (0.075 R)
• M6: 2,362,599 km (0.098 R)
• M7: 3,018,735 km (0.05 R)
• M8: 3,383,006 km (0.086 R)
• M9: 3,745,482 km (0.092 R)
• M10: 4,303,781 km (0.111 R)
• M11: 5,649,414 km (0.068 R)
• M12: 6,430,464 km (0.062 R)
• M13: 6,776,484 km (0.077 R)
• M14: 8,047,767 km (0.111 R)
• M15: 8,642,867 km (0.113 R)
• M16: 9,890,514 km (0.054 R)
• M17: 10,573,578 km (0.11 R)
• M18: 10,959,241 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.3

Radius: 12.1

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 3.09 AU - 4.03 AU

Year: 4636 Days

Day: 11.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 37,818,949 km

• M1: 150,495 km (0.092 R)
• M2: 926,759 km (0.113 R)
• M3: 2,288,399 km (0.026 R)
• M4: 2,966,675 km (0.035 R)
• M5: 5,753,983 km (0.102 R)
• M6: 8,253,165 km (0.111 R)
• M7: 10,458,537 km (0.059 R)
• M8: 11,248,114 km (0.107 R)
• M9: 13,945,962 km (0.115 R)
• M10: 15,043,113 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 115.8

Radius: 5

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 6.96 AU - 10 AU

Year: 17045 Days

Day: 16.5 Hours

Environment

Temp: -230 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 37,818,949 km

• M1: 63,130 km (0.106 R)
• M2: 275,110 km (0.098 R)
• M3: 464,202 km (0.072 R)
• M4: 703,110 km (0.076 R)
• M5: 1,809,087 km (0.116 R)
• M6: 2,570,391 km (0.04 R)
• M7: 2,741,381 km (0.052 R)
• M8: 3,642,259 km (0.057 R)
• M9: 5,401,830 km (0.093 R)
• M10: 7,315,186 km (0.089 R)
• M11: 13,921,279 km (0.096 R)
• M12: 14,213,593 km (0.101 R)
• M13: 16,247,077 km (0.103 R)
• M14: 16,899,623 km (0.087 R)
• M15: 17,098,737 km (0.105 R)
• M16: 18,187,212 km (0.062 R)
• M17: 19,393,718 km (0.117 R)
• M18: 21,573,060 km (0.06 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 491 - 13,779 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit