🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.17

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.6 AU - 0.94 AU

Year: 239 Days

Day: 46.7 Hours

Environment

Temp: 170 °C

Axial Tilt: 9.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 101,975,429 km

• M1: 69,862 km (0.082 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.45

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.48 AU - 1.9 AU

Year: 776 Days

Day: 39 Hours

Environment

Temp: -43 °C

Axial Tilt: 16.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 101,975,429 km

• M1: 80,633 km (0.041 R)
• M2: 1,015,470 km (0.119 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.59 AU - 2.01 AU

Year: 853 Days

Day: 21.4 Hours

Environment

Temp: -38 °C

Axial Tilt: 5.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.39

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 2.47 AU - 3.57 AU

Year: 1853 Days

Day: 39.7 Hours

Environment

Temp: -95 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.61

Radius: 0.82

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 3.04 AU - 4.12 AU

Year: 2392 Days

Day: 18.8 Hours

Environment

Temp: -110 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.47

Radius: 1.17

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 3.22 AU - 4.8 AU

Year: 2835 Days

Day: 46.5 Hours

Environment

Temp: -121 °C

Axial Tilt: 38 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 4.19 AU - 4.55 AU

Year: 3226 Days

Day: 40.2 Hours

Environment

Temp: -127 °C

Axial Tilt: 35 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Ice Giant

Semi-Major Axis: 18.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 433.6

Radius: 4.1

Gravity: 25.79 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 14.65 AU - 21.83 AU

Year: 27507 Days

Day: 15.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 101,975,429 km

• M1: 51,761 km (0.036 R)
• M2: 208,689 km (0.105 R)
• M3: 363,523 km (0.094 R)
• M4: 842,386 km (0.101 R)
• M5: 1,125,874 km (0.097 R)
• M6: 2,822,762 km (0.039 R)
• M7: 3,059,576 km (0.114 R)
• M8: 3,366,700 km (0.097 R)
• M9: 4,042,284 km (0.111 R)
• M10: 4,207,590 km (0.118 R)
• M11: 6,119,151 km (0.102 R)
• M12: 7,023,321 km (0.079 R)
• M13: 12,277,348 km (0.052 R)
• M14: 13,558,354 km (0.084 R)
• M15: 15,481,584 km (0.059 R)
• M16: 20,241,041 km (0.074 R)
• M17: 22,845,390 km (0.115 R)
• M18: 24,011,356 km (0.038 R)
• M19: 24,994,363 km (0.103 R)
• M20: 28,104,204 km (0.057 R)
• M21: 43,761,716 km (0.074 R)
• M22: 52,129,323 km (0.098 R)
• M23: 53,589,398 km (0.054 R)
• M24: 55,076,550 km (0.047 R)
• M25: 64,164,472 km (0.104 R)
• M26: 64,998,779 km (0.041 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 853.4

Radius: 3.8

Gravity: 59.1 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 15.56 AU - 21.18 AU

Year: 27801 Days

Day: 21.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 101,975,429 km

• M1: 53,855 km (0.058 R)
• M2: 182,958 km (0.074 R)
• M3: 530,624 km (0.074 R)
• M4: 826,528 km (0.102 R)
• M5: 1,192,893 km (0.11 R)
• M6: 2,190,262 km (0.093 R)
• M7: 2,308,894 km (0.119 R)
• M8: 2,717,595 km (0.053 R)
• M9: 3,083,811 km (0.059 R)
• M10: 3,294,145 km (0.1 R)
• M11: 4,018,199 km (0.099 R)
• M12: 4,646,061 km (0.096 R)
• M13: 5,508,792 km (0.097 R)
• M14: 6,000,969 km (0.104 R)
• M15: 7,761,886 km (0.093 R)
• M16: 9,090,015 km (0.039 R)
• M17: 10,361,897 km (0.071 R)
• M18: 11,675,665 km (0.113 R)
• M19: 13,568,078 km (0.101 R)
• M20: 13,888,816 km (0.105 R)
• M21: 25,051,659 km (0.037 R)
• M22: 26,269,236 km (0.088 R)
• M23: 29,618,434 km (0.1 R)
• M24: 31,534,483 km (0.101 R)
• M25: 39,862,297 km (0.085 R)
• M26: 42,024,435 km (0.098 R)
• M27: 46,762,350 km (0.11 R)
• M28: 49,165,490 km (0.073 R)
• M29: 60,676,448 km (0.087 R)
• M30: 68,097,250 km (0.114 R)
• M31: 68,800,510 km (0.039 R)
• M32: 70,699,206 km (0.087 R)
• M33: 76,604,432 km (0.08 R)
• M34: 83,899,123 km (0.101 R)
• M35: 85,520,316 km (0.079 R)
• M36: 89,104,232 km (0.112 R)
• M37: 91,643,207 km (0.11 R)
• M38: 93,074,410 km (0.116 R)
• M39: 100,454,073 km (0.093 R)
• M40: 101,975,483 km (0.098 R)

Kuiper Belt

Range: 31.1 - 57.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 431 - 11,872 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit