🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.53

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.46 AU - 0.68 AU

Year: 274 Days

Day: 30.7 Hours

Environment

Temp: -124 °C

Axial Tilt: 29 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 443.4

Radius: 12.6

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.58 AU - 0.82 AU

Year: 372 Days

Day: 12 Hours

Environment

Temp: -146 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 39,990,187 km

• M1: 156,629 km (0.093 R)
• M2: 891,753 km (0.051 R)
• M3: 1,316,760 km (0.063 R)
• M4: 1,742,067 km (0.077 R)
• M5: 2,674,062 km (0.105 R)
• M6: 3,263,478 km (0.104 R)
• M7: 3,855,137 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432.1

Radius: 11.9

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.63 AU - 0.93 AU

Year: 438 Days

Day: 11 Hours

Environment

Temp: -144 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,990,187 km

• M1: 147,952 km (0.052 R)
• M2: 567,574 km (0.077 R)
• M3: 955,332 km (0.107 R)
• M4: 1,472,791 km (0.111 R)
• M5: 1,991,596 km (0.099 R)
• M6: 2,538,227 km (0.064 R)
• M7: 2,912,820 km (0.11 R)
• M8: 3,910,339 km (0.082 R)
• M9: 4,508,880 km (0.118 R)
• M10: 4,960,665 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.9

Radius: 13.1

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.03 AU - 2.79 AU

Year: 2379 Days

Day: 6.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,990,187 km

• M1: 164,258 km (0.104 R)
• M2: 704,606 km (0.063 R)
• M3: 1,217,427 km (0.099 R)
• M4: 1,645,876 km (0.057 R)
• M5: 2,092,874 km (0.097 R)
• M6: 2,834,431 km (0.101 R)
• M7: 4,117,233 km (0.111 R)
• M8: 4,532,067 km (0.056 R)
• M9: 5,446,410 km (0.102 R)
• M10: 6,143,985 km (0.105 R)
• M11: 6,641,547 km (0.057 R)
• M12: 8,406,652 km (0.054 R)
• M13: 9,136,092 km (0.099 R)
• M14: 11,178,252 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.3

Radius: 11.4

Gravity: 7.39 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 2.48 AU - 3.6 AU

Year: 3370 Days

Day: 10 Hours

Environment

Temp: -204 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 39,990,187 km

• M1: 141,819 km (0.07 R)
• M2: 575,204 km (0.069 R)
• M3: 1,249,591 km (0.118 R)
• M4: 1,975,141 km (0.052 R)
• M5: 2,342,703 km (0.045 R)
• M6: 2,722,980 km (0.095 R)
• M7: 3,469,324 km (0.118 R)
• M8: 4,032,111 km (0.104 R)
• M9: 4,703,656 km (0.059 R)
• M10: 5,341,093 km (0.118 R)
• M11: 5,863,489 km (0.077 R)
• M12: 7,270,307 km (0.107 R)
• M13: 7,912,830 km (0.114 R)
• M14: 8,928,450 km (0.097 R)
• M15: 10,069,732 km (0.119 R)
• M16: 10,485,165 km (0.105 R)
• M17: 10,955,202 km (0.112 R)
• M18: 11,754,802 km (0.112 R)
• M19: 12,640,571 km (0.106 R)
• M20: 13,923,971 km (0.12 R)
• M21: 14,969,062 km (0.086 R)
• M22: 15,401,400 km (0.088 R)
• M23: 15,842,115 km (0.082 R)
• M24: 20,261,536 km (0.046 R)
• M25: 21,261,747 km (0.092 R)
• M26: 22,016,019 km (0.106 R)
• M27: 22,646,275 km (0.12 R)
• M28: 23,288,499 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.7

Radius: 12.9

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.94 AU - 4.68 AU

Year: 4728 Days

Day: 13.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 39,990,187 km

• M1: 160,519 km (0.096 R)
• M2: 638,783 km (0.025 R)
• M3: 1,909,617 km (0.063 R)
• M4: 2,456,846 km (0.07 R)
• M5: 2,991,808 km (0.066 R)
• M6: 5,304,591 km (0.105 R)
• M7: 5,712,843 km (0.112 R)
• M8: 8,862,776 km (0.062 R)
• M9: 10,993,499 km (0.117 R)
• M10: 11,757,794 km (0.078 R)
• M11: 12,918,375 km (0.086 R)
• M12: 13,769,886 km (0.084 R)
• M13: 15,174,759 km (0.108 R)
• M14: 16,062,323 km (0.102 R)
• M15: 17,046,977 km (0.092 R)
• M16: 20,740,249 km (0.1 R)
• M17: 22,735,286 km (0.115 R)
• M18: 23,272,791 km (0.114 R)
• M19: 24,373,233 km (0.075 R)
• M20: 24,855,387 km (0.112 R)
• M21: 25,590,361 km (0.072 R)
• M22: 29,034,104 km (0.11 R)
• M23: 29,485,292 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.8

Radius: 10.4

Gravity: 6.47 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 5.11 AU - 5.29 AU

Year: 7539 Days

Day: 11.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 39,990,187 km

• M1: 137,929 km (0.041 R)
• M2: 1,032,824 km (0.108 R)
• M3: 1,460,075 km (0.087 R)
• M4: 2,998,989 km (0.106 R)
• M5: 3,594,837 km (0.119 R)
• M6: 4,733,277 km (0.076 R)
• M7: 6,131,119 km (0.07 R)
• M8: 7,433,817 km (0.029 R)
• M9: 8,399,472 km (0.079 R)
• M10: 8,869,059 km (0.086 R)
• M11: 11,025,662 km (0.12 R)
• M12: 11,589,197 km (0.066 R)
• M13: 13,743,108 km (0.12 R)
• M14: 16,216,559 km (0.101 R)
• M15: 17,696,381 km (0.035 R)
• M16: 22,593,318 km (0.111 R)
• M17: 28,324,861 km (0.088 R)
• M18: 31,371,421 km (0.057 R)
• M19: 35,285,500 km (0.092 R)
• M20: 35,949,565 km (0.113 R)
• M21: 38,339,391 km (0.083 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 227 - 12,667 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit