🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.69

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.47 AU - 0.67 AU

Year: 274 Days

Day: 42.7 Hours

Environment

Temp: -130 °C

Axial Tilt: 15.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 73,030,573 km

• M1: 43,533 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.1

Radius: 13.6

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.83 AU - 0.99 AU

Year: 552 Days

Day: 11 Hours

Environment

Temp: -149 °C

Axial Tilt: 71.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 73,030,573 km

• M1: 169,494 km (0.074 R)
• M2: 680,222 km (0.101 R)
• M3: 1,251,087 km (0.081 R)
• M4: 1,738,477 km (0.089 R)
• M5: 2,603,751 km (0.036 R)
• M6: 3,316,585 km (0.12 R)
• M7: 3,875,333 km (0.088 R)
• M8: 5,319,251 km (0.061 R)
• M9: 6,107,483 km (0.084 R)
• M10: 6,829,442 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339

Radius: 11.8

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.67 AU - 1.99 AU

Year: 1574 Days

Day: 9.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 73,030,573 km

• M1: 146,756 km (0.068 R)
• M2: 564,134 km (0.106 R)
• M3: 949,049 km (0.108 R)
• M4: 1,375,702 km (0.108 R)
• M5: 1,902,586 km (0.108 R)
• M6: 3,486,079 km (0.083 R)
• M7: 4,803,288 km (0.079 R)
• M8: 5,857,355 km (0.038 R)
• M9: 6,541,915 km (0.117 R)
• M10: 8,919,175 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.3

Radius: 13.5

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 2.19 AU - 2.21 AU

Year: 2075 Days

Day: 6.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 72.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 73,030,573 km

• M1: 168,746 km (0.036 R)
• M2: 590,463 km (0.035 R)
• M3: 1,207,704 km (0.11 R)
• M4: 1,685,370 km (0.062 R)
• M5: 2,165,130 km (0.056 R)
• M6: 2,658,504 km (0.072 R)
• M7: 3,241,786 km (0.1 R)
• M8: 3,842,421 km (0.09 R)
• M9: 5,083,036 km (0.098 R)
• M10: 5,652,855 km (0.079 R)
• M11: 6,407,127 km (0.08 R)
• M12: 7,022,423 km (0.049 R)
• M13: 7,516,096 km (0.087 R)
• M14: 8,515,560 km (0.116 R)
• M15: 9,352,709 km (0.045 R)
• M16: 10,676,800 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.7

Radius: 13.6

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 3.42 AU - 5.42 AU

Year: 5908 Days

Day: 7.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 73,030,573 km

• M1: 170,093 km (0.1 R)
• M2: 920,326 km (0.113 R)
• M3: 1,369,419 km (0.104 R)
• M4: 2,440,540 km (0.113 R)
• M5: 2,891,278 km (0.066 R)
• M6: 3,334,088 km (0.039 R)
• M7: 5,523,153 km (0.086 R)
• M8: 6,475,344 km (0.116 R)
• M9: 7,133,126 km (0.041 R)
• M10: 10,084,692 km (0.062 R)
• M11: 10,591,080 km (0.095 R)
• M12: 12,683,207 km (0.079 R)
• M13: 15,336,475 km (0.027 R)
• M14: 16,131,438 km (0.117 R)
• M15: 18,750,448 km (0.086 R)
• M16: 19,873,479 km (0.097 R)
• M17: 20,892,539 km (0.115 R)
• M18: 24,159,009 km (0.098 R)
• M19: 27,041,610 km (0.088 R)
• M20: 30,622,235 km (0.049 R)
• M21: 32,376,869 km (0.102 R)
• M22: 34,819,503 km (0.05 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 489.2

Radius: 7.5

Gravity: 8.7 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 9.37 AU - 12.03 AU

Year: 22254 Days

Day: 22.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,030,573 km

• M1: 93,199 km (0.071 R)
• M2: 339,438 km (0.05 R)
• M3: 1,246,599 km (0.117 R)
• M4: 1,513,033 km (0.062 R)
• M5: 2,667,031 km (0.092 R)
• M6: 3,847,956 km (0.063 R)
• M7: 5,613,660 km (0.04 R)
• M8: 7,239,041 km (0.11 R)
• M9: 8,465,893 km (0.058 R)
• M10: 8,939,670 km (0.12 R)
• M11: 9,542,549 km (0.035 R)
• M12: 15,847,800 km (0.078 R)
• M13: 20,309,108 km (0.105 R)
• M14: 20,683,551 km (0.057 R)
• M15: 42,556,106 km (0.057 R)
• M16: 51,859,299 km (0.067 R)
• M17: 71,941,915 km (0.071 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 242 - 14,998 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit