🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.57 AU - 0.69 AU

Year: 328 Days

Day: 45.4 Hours

Environment

Temp: -134 °C

Axial Tilt: 16.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.64

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.64 AU - 0.66 AU

Year: 344 Days

Day: 47.2 Hours

Environment

Temp: -124 °C

Axial Tilt: 22.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.3

Radius: 10.3

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.57 AU - 0.79 AU

Year: 368 Days

Day: 8.6 Hours

Environment

Temp: -135 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 51,864,694 km

• M1: 128,056 km (0.1 R)
• M2: 483,949 km (0.112 R)
• M3: 996,322 km (0.098 R)
• M4: 1,348,475 km (0.091 R)
• M5: 1,981,873 km (0.066 R)
• M6: 2,472,853 km (0.102 R)
• M7: 3,073,488 km (0.071 R)
• M8: 3,780,189 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.4

Radius: 11.9

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.99 AU - 1.17 AU

Year: 736 Days

Day: 12.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,864,694 km

• M1: 148,102 km (0.066 R)
• M2: 535,560 km (0.107 R)
• M3: 924,515 km (0.044 R)
• M4: 1,302,549 km (0.098 R)
• M5: 2,187,570 km (0.114 R)
• M6: 2,949,621 km (0.1 R)
• M7: 3,825,517 km (0.111 R)
• M8: 4,287,026 km (0.077 R)
• M9: 6,301,212 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.2

Radius: 13.7

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 5.42 AU - 6.06 AU

Year: 9021 Days

Day: 15 Hours

Environment

Temp: -223 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 51,864,694 km

• M1: 170,392 km (0.115 R)
• M2: 685,906 km (0.103 R)
• M3: 1,630,916 km (0.11 R)
• M4: 2,746,168 km (0.097 R)
• M5: 3,802,479 km (0.119 R)
• M6: 5,056,258 km (0.094 R)
• M7: 7,889,792 km (0.035 R)
• M8: 8,696,124 km (0.09 R)
• M9: 10,426,224 km (0.051 R)
• M10: 12,322,825 km (0.051 R)
• M11: 13,690,150 km (0.087 R)
• M12: 16,338,930 km (0.087 R)
• M13: 17,515,068 km (0.084 R)
• M14: 18,261,262 km (0.094 R)
• M15: 21,923,119 km (0.097 R)
• M16: 25,270,521 km (0.085 R)
• M17: 25,961,364 km (0.066 R)
• M18: 29,226,936 km (0.058 R)
• M19: 31,154,953 km (0.097 R)
• M20: 31,849,237 km (0.11 R)
• M21: 32,757,296 km (0.092 R)
• M22: 36,234,549 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 493.6

Radius: 4.2

Gravity: 27.98 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 7.11 AU - 7.73 AU

Year: 13259 Days

Day: 20.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 51,864,694 km

• M1: 52,359 km (0.12 R)
• M2: 210,185 km (0.087 R)
• M3: 539,001 km (0.065 R)
• M4: 768,484 km (0.087 R)
• M5: 1,060,799 km (0.106 R)
• M6: 1,289,982 km (0.064 R)
• M7: 1,656,348 km (0.116 R)
• M8: 2,530,598 km (0.066 R)
• M9: 3,443,444 km (0.113 R)
• M10: 4,001,593 km (0.08 R)
• M11: 5,161,575 km (0.105 R)
• M12: 5,466,007 km (0.038 R)
• M13: 5,854,213 km (0.063 R)
• M14: 6,336,367 km (0.112 R)
• M15: 7,253,702 km (0.072 R)
• M16: 9,597,152 km (0.037 R)
• M17: 11,132,176 km (0.109 R)
• M18: 13,007,834 km (0.072 R)
• M19: 16,271,910 km (0.081 R)
• M20: 17,823,838 km (0.079 R)
• M21: 19,070,587 km (0.099 R)
• M22: 19,391,175 km (0.031 R)
• M23: 22,796,621 km (0.119 R)
• M24: 25,307,921 km (0.086 R)
• M25: 28,203,986 km (0.069 R)
• M26: 32,209,618 km (0.061 R)
• M27: 34,643,725 km (0.099 R)
• M28: 43,916,101 km (0.065 R)
• M29: 45,892,588 km (0.11 R)
• M30: 48,967,123 km (0.089 R)
• M31: 49,116,870 km (0.102 R)
• M32: 51,245,499 km (0.06 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: 286 - 12,567 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit