🌌 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 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.11

Radius: 0.41

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.61 AU - 0.73 AU

Year: 349 Days

Day: 48 Hours

Environment

Temp: -144 °C

Axial Tilt: 22.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.4

Radius: 12.8

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.92 AU - 1.38 AU

Year: 784 Days

Day: 7.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 84,216,762 km

• M1: 159,172 km (0.058 R)
• M2: 676,781 km (0.066 R)
• M3: 1,642,734 km (0.115 R)
• M4: 2,218,536 km (0.1 R)
• M5: 2,725,075 km (0.119 R)
• M6: 3,484,134 km (0.058 R)
• M7: 4,142,515 km (0.106 R)
• M8: 4,609,709 km (0.106 R)
• M9: 5,386,122 km (0.093 R)
• M10: 6,887,037 km (0.109 R)
• M11: 7,382,954 km (0.025 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.5

Radius: 13.4

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.25 AU - 2.51 AU

Year: 2335 Days

Day: 13.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 84,216,762 km

• M1: 167,101 km (0.039 R)
• M2: 718,668 km (0.118 R)
• M3: 1,465,910 km (0.06 R)
• M4: 2,438,894 km (0.03 R)
• M5: 3,223,984 km (0.11 R)
• M6: 3,713,318 km (0.034 R)
• M7: 4,733,576 km (0.052 R)
• M8: 5,158,583 km (0.101 R)
• M9: 6,482,076 km (0.076 R)
• M10: 7,008,062 km (0.076 R)
• M11: 7,835,188 km (0.069 R)
• M12: 9,060,993 km (0.115 R)
• M13: 10,079,456 km (0.115 R)
• M14: 11,290,450 km (0.083 R)
• M15: 12,596,290 km (0.088 R)
• M16: 14,046,043 km (0.117 R)
• M17: 15,120,455 km (0.114 R)
• M18: 15,949,227 km (0.075 R)
• M19: 17,275,113 km (0.087 R)

Planet 4 - Ice Giant

Semi-Major Axis: 9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 740.4

Radius: 4.6

Gravity: 34.99 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 7.33 AU - 10.67 AU

Year: 17167 Days

Day: 19.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 84,216,762 km

• M1: 57,595 km (0.117 R)
• M2: 368,011 km (0.118 R)
• M3: 664,364 km (0.108 R)
• M4: 1,119,142 km (0.114 R)
• M5: 1,866,383 km (0.108 R)
• M6: 2,302,012 km (0.11 R)
• M7: 2,589,689 km (0.102 R)
• M8: 2,851,485 km (0.087 R)
• M9: 4,110,052 km (0.11 R)
• M10: 4,567,223 km (0.067 R)
• M11: 5,505,202 km (0.117 R)
• M12: 8,146,502 km (0.076 R)
• M13: 8,552,660 km (0.119 R)
• M14: 8,760,601 km (0.077 R)
• M15: 9,350,316 km (0.116 R)
• M16: 10,371,471 km (0.094 R)
• M17: 11,092,233 km (0.093 R)
• M18: 11,402,051 km (0.08 R)
• M19: 11,717,852 km (0.088 R)
• M20: 13,039,250 km (0.114 R)
• M21: 13,384,372 km (0.084 R)
• M22: 14,383,536 km (0.074 R)
• M23: 15,585,256 km (0.105 R)
• M24: 16,852,200 km (0.097 R)
• M25: 19,860,015 km (0.106 R)
• M26: 22,411,257 km (0.028 R)
• M27: 23,612,229 km (0.104 R)
• M28: 27,358,758 km (0.119 R)
• M29: 28,382,456 km (0.103 R)
• M30: 36,955,760 km (0.096 R)
• M31: 37,507,926 km (0.076 R)
• M32: 39,915,704 km (0.065 R)
• M33: 49,569,105 km (0.069 R)
• M34: 53,336,578 km (0.082 R)
• M35: 53,864,658 km (0.085 R)
• M36: 63,187,149 km (0.097 R)
• M37: 67,403,415 km (0.118 R)
• M38: 69,684,932 km (0.069 R)

Planet 5 - Ice Giant

Semi-Major Axis: 10.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 897.3

Radius: 8

Gravity: 14.02 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 9.14 AU - 11.02 AU

Year: 20348 Days

Day: 22 Hours

Environment

Temp: -238 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 84,216,762 km

• M1: 101,727 km (0.079 R)
• M2: 649,554 km (0.042 R)
• M3: 995,125 km (0.073 R)
• M4: 1,306,438 km (0.111 R)
• M5: 3,434,917 km (0.033 R)
• M6: 3,705,988 km (0.076 R)
• M7: 6,331,580 km (0.09 R)
• M8: 8,832,857 km (0.115 R)
• M9: 11,455,756 km (0.094 R)
• M10: 12,908,351 km (0.111 R)
• M11: 14,247,701 km (0.111 R)
• M12: 14,871,824 km (0.066 R)
• M13: 18,178,086 km (0.109 R)
• M14: 24,503,383 km (0.066 R)
• M15: 26,782,656 km (0.026 R)
• M16: 29,199,709 km (0.065 R)
• M17: 35,162,381 km (0.107 R)
• M18: 36,157,357 km (0.094 R)
• M19: 44,308,047 km (0.114 R)
• M20: 48,370,676 km (0.084 R)
• M21: 51,758,021 km (0.077 R)
• M22: 59,000,652 km (0.09 R)
• M23: 60,607,034 km (0.068 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 447 - 19,748 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit