🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.66

Radius: 1.22

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.7 AU - 1.08 AU

Year: 369 Days

Day: 28.2 Hours

Environment

Temp: -52 °C

Axial Tilt: 37.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.32

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.79 AU - 1.09 AU

Year: 401 Days

Day: 31.7 Hours

Environment

Temp: -56 °C

Axial Tilt: 38.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.9 AU - 1.36 AU

Year: 528 Days

Day: 40.5 Hours

Environment

Temp: -66 °C

Axial Tilt: 37.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.31

Radius: 0.63

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.81 AU - 2.29 AU

Year: 1291 Days

Day: 30.9 Hours

Environment

Temp: -123 °C

Axial Tilt: 38.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19.4

Radius: 8.7

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.34 AU - 3.32 AU

Year: 2093 Days

Day: 7.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,247,452 km

• M1: 108,159 km (0.095 R)
• M2: 393,742 km (0.089 R)
• M3: 679,922 km (0.047 R)
• M4: 1,310,029 km (0.117 R)
• M5: 2,623,049 km (0.086 R)
• M6: 3,249,116 km (0.071 R)
• M7: 4,151,491 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.1

Radius: 13.8

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 3.94 AU - 4.06 AU

Year: 3518 Days

Day: 9.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,247,452 km

• M1: 171,888 km (0.113 R)
• M2: 726,447 km (0.037 R)
• M3: 2,162,587 km (0.04 R)
• M4: 3,141,256 km (0.068 R)
• M5: 4,567,373 km (0.043 R)
• M6: 5,413,797 km (0.063 R)
• M7: 6,254,837 km (0.079 R)
• M8: 7,974,165 km (0.1 R)
• M9: 11,136,664 km (0.082 R)
• M10: 12,284,229 km (0.101 R)
• M11: 14,718,187 km (0.112 R)
• M12: 15,153,217 km (0.051 R)
• M13: 16,926,849 km (0.045 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 717.3

Radius: 8.4

Gravity: 10.17 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 4.98 AU - 8.1 AU

Year: 7354 Days

Day: 7.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 66,247,452 km

• M1: 104,419 km (0.083 R)
• M2: 430,543 km (0.112 R)
• M3: 744,997 km (0.115 R)
• M4: 1,525,898 km (0.07 R)
• M5: 2,107,984 km (0.073 R)
• M6: 3,183,891 km (0.096 R)
• M7: 4,158,821 km (0.071 R)
• M8: 4,843,829 km (0.104 R)
• M9: 5,108,169 km (0.051 R)
• M10: 5,444,315 km (0.066 R)
• M11: 5,730,346 km (0.114 R)
• M12: 7,861,667 km (0.053 R)
• M13: 8,227,883 km (0.042 R)
• M14: 8,520,347 km (0.071 R)
• M15: 9,170,798 km (0.092 R)
• M16: 10,570,586 km (0.105 R)
• M17: 11,947,335 km (0.107 R)
• M18: 13,729,345 km (0.097 R)
• M19: 14,867,485 km (0.072 R)
• M20: 16,657,723 km (0.066 R)
• M21: 17,059,244 km (0.107 R)
• M22: 18,515,728 km (0.085 R)
• M23: 20,355,633 km (0.106 R)
• M24: 25,438,370 km (0.087 R)
• M25: 26,875,407 km (0.08 R)
• M26: 29,616,638 km (0.103 R)
• M27: 30,404,421 km (0.09 R)
• M28: 30,703,467 km (0.107 R)
• M29: 33,802,536 km (0.117 R)
• M30: 34,989,147 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 776.5

Radius: 7.1

Gravity: 15.4 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 9.35 AU - 11.93 AU

Year: 15261 Days

Day: 18.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 135.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,247,452 km

• M1: 89,759 km (0.082 R)
• M2: 359,334 km (0.04 R)
• M3: 755,020 km (0.116 R)
• M4: 1,134,550 km (0.057 R)
• M5: 3,226,676 km (0.025 R)
• M6: 3,893,285 km (0.107 R)
• M7: 4,885,567 km (0.086 R)
• M8: 6,654,712 km (0.096 R)
• M9: 8,558,195 km (0.089 R)
• M10: 10,162,632 km (0.104 R)
• M11: 10,680,540 km (0.038 R)
• M12: 11,155,663 km (0.1 R)
• M13: 13,401,576 km (0.115 R)
• M14: 14,450,257 km (0.092 R)
• M15: 15,327,798 km (0.09 R)
• M16: 16,240,494 km (0.069 R)
• M17: 20,435,368 km (0.107 R)
• M18: 21,167,351 km (0.089 R)
• M19: 29,591,506 km (0.113 R)
• M20: 32,091,885 km (0.12 R)
• M21: 40,147,431 km (0.093 R)
• M22: 52,620,153 km (0.092 R)
• M23: 62,166,293 km (0.066 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 200 - 16,679 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit