🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.69

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.49 AU - 0.65 AU

Year: 185 Days

Day: 20.4 Hours

Environment

Temp: 34 °C

Axial Tilt: 105.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.62 AU - 0.94 AU

Year: 297 Days

Day: 33.6 Hours

Environment

Temp: -25 °C

Axial Tilt: 3.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.59

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.61 AU - 1.01 AU

Year: 314 Days

Day: 45.9 Hours

Environment

Temp: -27 °C

Axial Tilt: 3.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,781,183 km

• M1: 316,848 km (0.11 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.69 AU - 1.03 AU

Year: 343 Days

Day: 17.9 Hours

Environment

Temp: -36 °C

Axial Tilt: 1.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 71,781,183 km

• M1: 153,188 km (0.108 R)
• M2: 241,750 km (0.042 R)

Asteroid Belt

Center: 1.85 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 618

Radius: 14.3

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 2.26 AU - 3.4 AU

Year: 2049 Days

Day: 14 Hours

Environment

Temp: -146 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,781,183 km

• M1: 177,872 km (0.057 R)
• M2: 638,484 km (0.039 R)
• M3: 1,093,560 km (0.081 R)
• M4: 2,429,469 km (0.12 R)
• M5: 3,220,393 km (0.112 R)
• M6: 4,410,444 km (0.053 R)
• M7: 5,476,628 km (0.087 R)
• M8: 6,095,664 km (0.117 R)
• M9: 6,761,225 km (0.1 R)
• M10: 8,796,654 km (0.076 R)
• M11: 9,248,589 km (0.07 R)
• M12: 13,486,398 km (0.115 R)
• M13: 15,393,322 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.3

Radius: 12.5

Gravity: 6.33 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.63 AU - 3.19 AU

Year: 2137 Days

Day: 9.1 Hours

Environment

Temp: -144 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,781,183 km

• M1: 155,432 km (0.071 R)
• M2: 550,670 km (0.049 R)
• M3: 1,112,859 km (0.072 R)
• M4: 1,640,490 km (0.104 R)
• M5: 2,415,407 km (0.077 R)
• M6: 4,100,777 km (0.099 R)
• M7: 5,027,685 km (0.052 R)
• M8: 5,830,128 km (0.11 R)
• M9: 7,597,627 km (0.086 R)
• M10: 8,130,644 km (0.048 R)
• M11: 8,959,566 km (0.114 R)
• M12: 9,698,729 km (0.083 R)
• M13: 10,440,136 km (0.06 R)
• M14: 11,139,357 km (0.097 R)
• M15: 12,204,194 km (0.101 R)
• M16: 14,206,113 km (0.119 R)
• M17: 14,823,055 km (0.096 R)
• M18: 16,677,470 km (0.078 R)
• M19: 18,015,024 km (0.108 R)
• M20: 18,851,127 km (0.053 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 260.2

Radius: 7.8

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 9.14 AU - 10.9 AU

Year: 13653 Days

Day: 22 Hours

Environment

Temp: -191 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 71,781,183 km

• M1: 97,089 km (0.117 R)
• M2: 380,278 km (0.079 R)
• M3: 863,629 km (0.068 R)
• M4: 1,158,187 km (0.066 R)
• M5: 3,099,817 km (0.078 R)
• M6: 4,138,625 km (0.088 R)
• M7: 4,494,369 km (0.11 R)
• M8: 5,081,241 km (0.105 R)
• M9: 5,619,345 km (0.094 R)
• M10: 8,200,506 km (0.12 R)
• M11: 9,030,625 km (0.056 R)
• M12: 16,678,966 km (0.067 R)
• M13: 17,580,742 km (0.068 R)
• M14: 29,343,622 km (0.092 R)
• M15: 34,715,981 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 872

Radius: 3.1

Gravity: 90.74 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 8.72 AU - 13.78 AU

Year: 16242 Days

Day: 23.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 71,781,183 km

• M1: 48,619 km (0.115 R)
• M2: 410,048 km (0.074 R)
• M3: 741,706 km (0.025 R)
• M4: 1,450,651 km (0.033 R)
• M5: 1,647,372 km (0.108 R)
• M6: 5,129,262 km (0.116 R)
• M7: 6,108,231 km (0.061 R)
• M8: 8,479,058 km (0.115 R)
• M9: 9,555,265 km (0.089 R)
• M10: 10,419,940 km (0.088 R)
• M11: 10,840,759 km (0.06 R)
• M12: 12,105,460 km (0.073 R)
• M13: 13,748,792 km (0.118 R)
• M14: 15,534,991 km (0.071 R)
• M15: 20,664,253 km (0.103 R)
• M16: 25,391,845 km (0.08 R)
• M17: 27,152,462 km (0.112 R)
• M18: 28,525,023 km (0.11 R)
• M19: 30,547,736 km (0.071 R)
• M20: 41,357,379 km (0.103 R)
• M21: 45,037,037 km (0.089 R)
• M22: 49,096,076 km (0.037 R)
• M23: 59,058,098 km (0.066 R)
• M24: 60,008,044 km (0.053 R)
• M25: 60,582,799 km (0.119 R)
• M26: 68,600,946 km (0.069 R)
• M27: 70,073,139 km (0.087 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 354 - 11,539 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit