🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.88

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.41 AU - 0.63 AU

Year: 242 Days

Day: 46.5 Hours

Environment

Temp: -123 °C

Axial Tilt: 96.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.66

Radius: 0.85

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.55 AU - 0.69 AU

Year: 315 Days

Day: 33 Hours

Environment

Temp: -120 °C

Axial Tilt: 17.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 73,270,899 km

• M1: 295,755 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.7

Radius: 13.4

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.72 AU - 1.02 AU

Year: 524 Days

Day: 10.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 73,270,899 km

• M1: 183,706 km (0.095 R)
• M2: 703,559 km (0.077 R)
• M3: 1,183,469 km (0.029 R)
• M4: 1,740,721 km (0.072 R)
• M5: 2,439,343 km (0.086 R)
• M6: 3,562,075 km (0.039 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.3

Radius: 11.2

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.62 AU - 1.82 AU

Year: 1456 Days

Day: 12.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,270,899 km

• M1: 139,276 km (0.111 R)
• M2: 579,542 km (0.091 R)
• M3: 1,211,144 km (0.095 R)
• M4: 1,884,036 km (0.064 R)
• M5: 2,381,897 km (0.119 R)
• M6: 3,473,812 km (0.054 R)
• M7: 3,904,056 km (0.096 R)
• M8: 4,442,010 km (0.046 R)
• M9: 4,853,254 km (0.105 R)
• M10: 5,208,699 km (0.082 R)
• M11: 5,688,160 km (0.037 R)
• M12: 6,381,097 km (0.027 R)
• M13: 6,857,267 km (0.095 R)
• M14: 8,543,086 km (0.11 R)
• M15: 9,092,858 km (0.102 R)
• M16: 9,452,042 km (0.109 R)
• M17: 10,327,639 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.5

Radius: 12.1

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.67 AU - 2.27 AU

Year: 1785 Days

Day: 6.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 73,270,899 km

• M1: 150,495 km (0.099 R)
• M2: 557,252 km (0.116 R)
• M3: 1,004,699 km (0.034 R)
• M4: 1,688,362 km (0.047 R)
• M5: 2,136,557 km (0.088 R)
• M6: 2,816,479 km (0.1 R)
• M7: 4,892,598 km (0.045 R)
• M8: 5,839,852 km (0.074 R)
• M9: 6,570,488 km (0.081 R)
• M10: 7,638,467 km (0.079 R)
• M11: 8,184,799 km (0.053 R)
• M12: 8,573,454 km (0.07 R)
• M13: 9,550,627 km (0.043 R)
• M14: 10,883,395 km (0.036 R)
• M15: 12,375,633 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.8

Radius: 10.3

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.76 AU - 3.18 AU

Year: 3305 Days

Day: 11.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,270,899 km

• M1: 128,056 km (0.097 R)
• M2: 452,085 km (0.093 R)
• M3: 919,877 km (0.067 R)
• M4: 1,475,633 km (0.087 R)
• M5: 2,024,658 km (0.078 R)
• M6: 2,508,457 km (0.081 R)
• M7: 2,913,119 km (0.062 R)
• M8: 4,198,015 km (0.106 R)
• M9: 5,561,750 km (0.117 R)
• M10: 6,126,781 km (0.095 R)
• M11: 7,752,461 km (0.116 R)
• M12: 8,301,186 km (0.084 R)
• M13: 12,398,223 km (0.066 R)
• M14: 13,710,346 km (0.096 R)
• M15: 14,242,316 km (0.083 R)
• M16: 15,776,591 km (0.069 R)
• M17: 16,410,138 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 579.9

Radius: 4.5

Gravity: 28.64 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 7.76 AU - 12.32 AU

Year: 20541 Days

Day: 17.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 73,270,899 km

• M1: 55,950 km (0.12 R)
• M2: 283,787 km (0.075 R)
• M3: 428,448 km (0.078 R)
• M4: 946,805 km (0.067 R)
• M5: 1,860,100 km (0.066 R)
• M6: 2,833,234 km (0.105 R)
• M7: 3,195,111 km (0.084 R)
• M8: 4,169,293 km (0.109 R)
• M9: 4,812,414 km (0.037 R)
• M10: 6,507,807 km (0.028 R)
• M11: 7,417,362 km (0.117 R)
• M12: 7,902,508 km (0.113 R)
• M13: 9,940,330 km (0.081 R)
• M14: 11,520,682 km (0.096 R)
• M15: 11,713,214 km (0.078 R)
• M16: 13,686,410 km (0.074 R)
• M17: 13,974,835 km (0.101 R)
• M18: 14,489,302 km (0.113 R)
• M19: 17,336,748 km (0.101 R)
• M20: 17,930,651 km (0.073 R)
• M21: 20,724,541 km (0.106 R)
• M22: 24,003,278 km (0.085 R)
• M23: 24,954,122 km (0.101 R)
• M24: 25,384,515 km (0.091 R)
• M25: 26,482,413 km (0.098 R)
• M26: 28,655,023 km (0.108 R)
• M27: 30,208,148 km (0.064 R)
• M28: 36,704,885 km (0.118 R)
• M29: 43,605,984 km (0.091 R)
• M30: 45,978,008 km (0.03 R)
• M31: 46,787,332 km (0.114 R)
• M32: 47,936,543 km (0.116 R)
• M33: 48,268,202 km (0.046 R)
• M34: 48,434,704 km (0.08 R)
• M35: 51,496,374 km (0.106 R)
• M36: 68,124,926 km (0.094 R)
• M37: 70,881,266 km (0.106 R)
• M38: 71,744,147 km (0.085 R)
• M39: 72,832,471 km (0.106 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: 523 - 18,374 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit