🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.47 AU - 0.65 AU

Year: 275 Days

Day: 21.8 Hours

Environment

Temp: -130 °C

Axial Tilt: 9.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 32,019,598 km

• M1: 18,849 km (0.065 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.59 AU - 0.65 AU

Year: 320 Days

Day: 18.5 Hours

Environment

Temp: -123 °C

Axial Tilt: 21.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 209.8

Radius: 8.6

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.67 AU - 0.71 AU

Year: 376 Days

Day: 7.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 32,019,598 km

• M1: 107,112 km (0.027 R)
• M2: 498,610 km (0.074 R)
• M3: 822,489 km (0.071 R)
• M4: 1,109,567 km (0.072 R)
• M5: 1,393,355 km (0.097 R)
• M6: 1,861,895 km (0.11 R)
• M7: 2,776,536 km (0.107 R)
• M8: 3,191,521 km (0.12 R)

Asteroid Belt

Center: 1.49 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.6

Radius: 14.8

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.94 AU - 2.62 AU

Year: 2258 Days

Day: 13.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 32,019,598 km

• M1: 185,801 km (0.053 R)
• M2: 894,745 km (0.046 R)
• M3: 2,397,455 km (0.093 R)
• M4: 2,922,694 km (0.105 R)
• M5: 3,840,477 km (0.074 R)
• M6: 4,439,317 km (0.089 R)
• M7: 5,139,884 km (0.113 R)
• M8: 5,696,837 km (0.12 R)
• M9: 6,339,958 km (0.087 R)
• M10: 8,793,512 km (0.089 R)
• M11: 10,441,931 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 537.2

Radius: 12.8

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.57 AU - 4.25 AU

Year: 4131 Days

Day: 13.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,019,598 km

• M1: 159,172 km (0.109 R)
• M2: 711,338 km (0.099 R)
• M3: 1,276,818 km (0.094 R)
• M4: 1,789,340 km (0.039 R)
• M5: 2,291,241 km (0.048 R)
• M6: 2,852,981 km (0.112 R)
• M7: 3,564,468 km (0.062 R)
• M8: 4,622,873 km (0.085 R)
• M9: 5,187,306 km (0.034 R)
• M10: 5,964,467 km (0.078 R)
• M11: 8,988,289 km (0.106 R)
• M12: 10,978,988 km (0.04 R)
• M13: 11,629,738 km (0.111 R)
• M14: 14,596,414 km (0.075 R)
• M15: 16,365,708 km (0.115 R)
• M16: 16,986,090 km (0.112 R)
• M17: 18,394,105 km (0.084 R)
• M18: 19,688,875 km (0.092 R)
• M19: 20,520,190 km (0.102 R)
• M20: 21,642,623 km (0.114 R)
• M21: 22,666,471 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.7

Radius: 9.2

Gravity: 10.65 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 3.23 AU - 3.97 AU

Year: 4481 Days

Day: 14.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 32,019,598 km

• M1: 114,442 km (0.086 R)
• M2: 678,277 km (0.111 R)
• M3: 1,118,693 km (0.097 R)
• M4: 1,405,921 km (0.07 R)
• M5: 1,730,548 km (0.08 R)
• M6: 2,120,251 km (0.062 R)
• M7: 2,567,997 km (0.096 R)
• M8: 3,357,575 km (0.067 R)
• M9: 4,108,406 km (0.107 R)
• M10: 5,583,441 km (0.116 R)
• M11: 8,223,694 km (0.082 R)
• M12: 10,626,236 km (0.092 R)
• M13: 11,553,144 km (0.099 R)
• M14: 11,890,039 km (0.111 R)
• M15: 12,332,848 km (0.084 R)
• M16: 12,735,566 km (0.059 R)
• M17: 13,303,739 km (0.093 R)
• M18: 15,688,030 km (0.091 R)
• M19: 16,704,697 km (0.111 R)
• M20: 20,087,254 km (0.083 R)
• M21: 21,285,234 km (0.093 R)
• M22: 22,905,528 km (0.038 R)
• M23: 27,313,280 km (0.057 R)
• M24: 27,740,083 km (0.097 R)
• M25: 28,257,991 km (0.047 R)
• M26: 30,121,830 km (0.028 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787.7

Radius: 8

Gravity: 12.31 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 3.78 AU - 4.06 AU

Year: 5091 Days

Day: 12.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 32,019,598 km

• M1: 100,231 km (0.113 R)
• M2: 403,615 km (0.035 R)
• M3: 1,343,090 km (0.108 R)
• M4: 1,703,321 km (0.093 R)
• M5: 2,204,325 km (0.101 R)
• M6: 2,481,380 km (0.073 R)
• M7: 2,818,573 km (0.095 R)
• M8: 3,126,147 km (0.069 R)
• M9: 4,434,081 km (0.114 R)
• M10: 6,295,378 km (0.097 R)
• M11: 6,621,950 km (0.076 R)
• M12: 7,855,085 km (0.093 R)
• M13: 9,656,991 km (0.113 R)
• M14: 10,404,233 km (0.075 R)
• M15: 11,914,573 km (0.028 R)
• M16: 12,722,252 km (0.108 R)
• M17: 16,198,607 km (0.091 R)
• M18: 18,549,687 km (0.089 R)
• M19: 19,771,752 km (0.04 R)
• M20: 22,526,447 km (0.118 R)
• M21: 27,901,349 km (0.109 R)
• M22: 28,694,816 km (0.077 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 552 - 18,380 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit