🌌 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: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997

Radius: 14.9

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.52 AU - 0.84 AU

Year: 380 Days

Day: 7.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 73,066,862 km

• M1: 185,352 km (0.083 R)
• M2: 682,465 km (0.105 R)
• M3: 1,353,861 km (0.035 R)
• M4: 1,921,734 km (0.12 R)
• M5: 2,455,799 km (0.102 R)
• M6: 2,969,368 km (0.048 R)
• M7: 3,896,127 km (0.117 R)
• M8: 5,213,336 km (0.07 R)
• M9: 5,724,512 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.5

Radius: 14.6

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.97 AU - 1.05 AU

Year: 688 Days

Day: 11.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 73,066,862 km

• M1: 181,612 km (0.111 R)
• M2: 823,087 km (0.071 R)
• M3: 1,449,304 km (0.069 R)
• M4: 2,095,268 km (0.116 R)
• M5: 2,808,999 km (0.101 R)
• M6: 4,452,930 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.3

Radius: 13.2

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.83 AU - 1.91 AU

Year: 1734 Days

Day: 14.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 73,066,862 km

• M1: 164,109 km (0.118 R)
• M2: 1,236,277 km (0.08 R)
• M3: 1,829,732 km (0.084 R)
• M4: 2,551,242 km (0.037 R)
• M5: 3,503,732 km (0.079 R)
• M6: 5,013,324 km (0.071 R)
• M7: 5,574,765 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 637.7

Radius: 9.6

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.81 AU - 1.95 AU

Year: 1748 Days

Day: 14.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,066,862 km

• M1: 119,529 km (0.111 R)
• M2: 527,183 km (0.111 R)
• M3: 1,156,840 km (0.116 R)
• M4: 1,665,174 km (0.116 R)
• M5: 2,125,187 km (0.096 R)
• M6: 2,481,978 km (0.092 R)
• M7: 2,793,291 km (0.058 R)
• M8: 3,397,667 km (0.105 R)
• M9: 3,765,977 km (0.104 R)
• M10: 5,469,448 km (0.104 R)
• M11: 5,812,326 km (0.092 R)
• M12: 6,771,548 km (0.106 R)
• M13: 7,439,951 km (0.112 R)
• M14: 10,913,464 km (0.091 R)
• M15: 11,348,195 km (0.087 R)
• M16: 14,075,215 km (0.113 R)
• M17: 14,633,963 km (0.042 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535.5

Radius: 8.5

Gravity: 7.41 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.63 AU - 2.55 AU

Year: 2049 Days

Day: 13.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 73,066,862 km

• M1: 108,159 km (0.064 R)
• M2: 382,971 km (0.102 R)
• M3: 704,756 km (0.073 R)
• M4: 996,023 km (0.114 R)
• M5: 1,412,952 km (0.103 R)
• M6: 1,739,225 km (0.056 R)
• M7: 2,139,549 km (0.027 R)
• M8: 2,840,415 km (0.082 R)
• M9: 3,531,557 km (0.11 R)
• M10: 5,069,722 km (0.076 R)
• M11: 5,424,120 km (0.059 R)
• M12: 6,035,376 km (0.117 R)
• M13: 6,332,627 km (0.065 R)
• M14: 7,939,309 km (0.1 R)
• M15: 8,852,903 km (0.058 R)
• M16: 10,247,305 km (0.106 R)
• M17: 10,996,939 km (0.084 R)
• M18: 11,706,183 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 359.9

Radius: 10.5

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 2.92 AU - 4.24 AU

Year: 4594 Days

Day: 12 Hours

Environment

Temp: -219 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,066,862 km

• M1: 130,599 km (0.042 R)
• M2: 860,038 km (0.06 R)
• M3: 1,396,945 km (0.09 R)
• M4: 4,621,527 km (0.101 R)
• M5: 4,978,318 km (0.026 R)
• M6: 5,456,882 km (0.037 R)
• M7: 6,477,289 km (0.054 R)
• M8: 7,204,185 km (0.112 R)
• M9: 12,480,950 km (0.107 R)
• M10: 12,848,662 km (0.119 R)
• M11: 18,608,479 km (0.113 R)
• M12: 19,332,234 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 551.9

Radius: 4.4

Gravity: 28.51 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 9.74 AU - 9.96 AU

Year: 20967 Days

Day: 16.8 Hours

Environment

Temp: -240 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 73,066,862 km

• M1: 54,753 km (0.103 R)
• M2: 359,484 km (0.094 R)
• M3: 579,542 km (0.093 R)
• M4: 2,146,729 km (0.095 R)
• M5: 3,998,153 km (0.05 R)
• M6: 10,863,199 km (0.095 R)
• M7: 12,469,132 km (0.093 R)
• M8: 14,080,301 km (0.103 R)
• M9: 15,356,969 km (0.11 R)
• M10: 23,935,659 km (0.106 R)
• M11: 28,341,167 km (0.054 R)
• M12: 28,809,259 km (0.113 R)
• M13: 30,611,015 km (0.093 R)
• M14: 31,352,123 km (0.104 R)
• M15: 33,647,553 km (0.045 R)
• M16: 36,189,370 km (0.095 R)
• M17: 38,142,221 km (0.094 R)
• M18: 39,579,408 km (0.054 R)
• M19: 46,656,734 km (0.057 R)
• M20: 54,893,443 km (0.045 R)
• M21: 60,891,121 km (0.071 R)
• M22: 62,259,043 km (0.071 R)
• M23: 63,049,668 km (0.057 R)
• M24: 63,248,484 km (0.077 R)
• M25: 64,853,220 km (0.03 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: 490 - 16,553 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit