🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.75

Radius: 1.25

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.64 AU - 0.7 AU

Year: 360 Days

Day: 30.3 Hours

Environment

Temp: -132 °C

Axial Tilt: 5.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.2

Radius: 8.1

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.67 AU - 0.75 AU

Year: 392 Days

Day: 7 Hours

Environment

Temp: -137 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,791,014 km

• M1: 101,128 km (0.111 R)
• M2: 373,695 km (0.112 R)
• M3: 715,227 km (0.094 R)
• M4: 1,003,652 km (0.103 R)
• M5: 1,296,864 km (0.119 R)
• M6: 1,589,328 km (0.063 R)
• M7: 1,846,187 km (0.059 R)
• M8: 2,154,957 km (0.114 R)
• M9: 2,696,950 km (0.119 R)
• M10: 3,045,813 km (0.106 R)
• M11: 3,316,136 km (0.044 R)
• M12: 3,775,401 km (0.101 R)
• M13: 4,225,541 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.1

Radius: 10

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.81 AU - 1.23 AU

Year: 676 Days

Day: 11.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,791,014 km

• M1: 124,465 km (0.079 R)
• M2: 517,010 km (0.092 R)
• M3: 878,140 km (0.093 R)
• M4: 1,263,653 km (0.114 R)
• M5: 1,646,923 km (0.116 R)
• M6: 2,180,090 km (0.087 R)
• M7: 2,642,198 km (0.037 R)
• M8: 2,993,603 km (0.118 R)
• M9: 3,339,024 km (0.058 R)
• M10: 3,658,117 km (0.057 R)
• M11: 4,899,779 km (0.079 R)
• M12: 5,661,382 km (0.116 R)
• M13: 6,697,197 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.9

Radius: 12.7

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.62 AU - 1.96 AU

Year: 1571 Days

Day: 7.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 70,791,014 km

• M1: 157,975 km (0.03 R)
• M2: 629,059 km (0.085 R)
• M3: 1,229,844 km (0.085 R)
• M4: 1,758,074 km (0.112 R)
• M5: 2,212,253 km (0.12 R)
• M6: 2,731,358 km (0.105 R)
• M7: 3,235,802 km (0.05 R)
• M8: 4,184,552 km (0.079 R)
• M9: 5,156,788 km (0.074 R)
• M10: 5,861,394 km (0.078 R)
• M11: 6,706,772 km (0.05 R)
• M12: 9,241,708 km (0.118 R)
• M13: 10,885,489 km (0.051 R)
• M14: 11,288,057 km (0.083 R)
• M15: 11,700,797 km (0.113 R)
• M16: 12,796,901 km (0.101 R)
• M17: 13,204,555 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.1

Radius: 12.9

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 4.01 AU - 4.91 AU

Year: 6179 Days

Day: 8.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 70,791,014 km

• M1: 160,668 km (0.077 R)
• M2: 750,981 km (0.119 R)
• M3: 1,164,320 km (0.117 R)
• M4: 1,786,199 km (0.081 R)
• M5: 2,459,090 km (0.11 R)
• M6: 3,028,609 km (0.117 R)
• M7: 3,435,964 km (0.1 R)
• M8: 3,902,260 km (0.072 R)
• M9: 5,618,746 km (0.095 R)
• M10: 8,118,377 km (0.1 R)
• M11: 9,429,303 km (0.048 R)
• M12: 13,733,234 km (0.095 R)
• M13: 16,636,779 km (0.082 R)
• M14: 17,606,921 km (0.114 R)
• M15: 24,236,800 km (0.068 R)
• M16: 25,246,436 km (0.097 R)
• M17: 27,266,306 km (0.109 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 789.5

Radius: 3.7

Gravity: 57.67 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 7.34 AU - 9.98 AU

Year: 16718 Days

Day: 15.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 70,791,014 km

• M1: 46,226 km (0.106 R)
• M2: 190,887 km (0.111 R)
• M3: 595,100 km (0.094 R)
• M4: 1,011,880 km (0.049 R)
• M5: 1,151,455 km (0.118 R)
• M6: 1,454,091 km (0.106 R)
• M7: 1,683,724 km (0.091 R)
• M8: 1,975,290 km (0.096 R)
• M9: 2,729,563 km (0.095 R)
• M10: 3,429,830 km (0.117 R)
• M11: 3,836,737 km (0.095 R)
• M12: 4,642,022 km (0.089 R)
• M13: 5,212,887 km (0.119 R)
• M14: 5,710,001 km (0.062 R)
• M15: 6,842,607 km (0.108 R)
• M16: 7,438,006 km (0.105 R)
• M17: 8,889,105 km (0.106 R)
• M18: 9,320,396 km (0.056 R)
• M19: 11,124,098 km (0.094 R)
• M20: 13,495,374 km (0.088 R)
• M21: 13,777,964 km (0.102 R)
• M22: 14,136,700 km (0.102 R)
• M23: 14,649,521 km (0.081 R)
• M24: 16,182,899 km (0.09 R)
• M25: 19,835,182 km (0.059 R)
• M26: 26,013,723 km (0.101 R)
• M27: 26,341,642 km (0.08 R)
• M28: 28,366,299 km (0.105 R)
• M29: 30,978,877 km (0.109 R)
• M30: 31,470,605 km (0.095 R)
• M31: 32,976,756 km (0.095 R)
• M32: 34,137,337 km (0.09 R)
• M33: 40,937,308 km (0.118 R)
• M34: 41,084,811 km (0.095 R)
• M35: 44,418,899 km (0.089 R)
• M36: 49,919,014 km (0.029 R)
• M37: 52,483,421 km (0.08 R)
• M38: 54,241,046 km (0.1 R)
• M39: 54,775,859 km (0.059 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: 499 - 14,219 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit