🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.57 AU - 0.81 AU

Year: 208 Days

Day: 28.4 Hours

Environment

Temp: 169 °C

Axial Tilt: 6.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.16

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.72 AU - 0.94 AU

Year: 275 Days

Day: 21.4 Hours

Environment

Temp: 127 °C

Axial Tilt: 41.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.33 AU - 2.21 AU

Year: 856 Days

Day: 42.1 Hours

Environment

Temp: -52 °C

Axial Tilt: 138.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,527,383 km

• M1: 27,676 km (0.119 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 3.54 AU - 3.72 AU

Year: 2514 Days

Day: 26.6 Hours

Environment

Temp: -114 °C

Axial Tilt: 3.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 41,527,383 km

• M1: 45,777 km (0.099 R)
• M2: 1,291,179 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.1

Radius: 14.9

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 7.05 AU - 7.89 AU

Year: 7420 Days

Day: 6.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 41,527,383 km

• M1: 187,446 km (0.108 R)
• M2: 1,204,113 km (0.085 R)
• M3: 1,753,586 km (0.089 R)
• M4: 2,279,423 km (0.105 R)
• M5: 3,683,100 km (0.099 R)
• M6: 4,814,957 km (0.118 R)
• M7: 5,415,443 km (0.047 R)
• M8: 9,160,177 km (0.115 R)
• M9: 10,821,162 km (0.1 R)
• M10: 11,330,842 km (0.073 R)
• M11: 12,234,114 km (0.114 R)
• M12: 16,136,674 km (0.109 R)
• M13: 18,840,057 km (0.059 R)
• M14: 20,880,272 km (0.038 R)
• M15: 22,814,124 km (0.115 R)
• M16: 26,573,668 km (0.117 R)
• M17: 27,222,474 km (0.109 R)
• M18: 29,527,777 km (0.076 R)
• M19: 36,194,457 km (0.117 R)
• M20: 40,911,278 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.6

Radius: 11.3

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 8.64 AU - 11 AU

Year: 11184 Days

Day: 11.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 41,527,383 km

• M1: 140,472 km (0.11 R)
• M2: 636,240 km (0.114 R)
• M3: 1,067,680 km (0.115 R)
• M4: 1,967,212 km (0.098 R)
• M5: 2,338,364 km (0.072 R)
• M6: 3,795,597 km (0.026 R)
• M7: 4,956,925 km (0.05 R)
• M8: 5,360,690 km (0.099 R)
• M9: 7,007,912 km (0.076 R)
• M10: 8,052,405 km (0.103 R)
• M11: 10,249,249 km (0.12 R)
• M12: 12,934,830 km (0.118 R)
• M13: 13,463,808 km (0.113 R)
• M14: 14,068,483 km (0.1 R)
• M15: 15,137,809 km (0.059 R)
• M16: 15,857,973 km (0.055 R)
• M17: 16,328,159 km (0.108 R)
• M18: 18,449,307 km (0.057 R)
• M19: 19,044,707 km (0.036 R)
• M20: 20,117,473 km (0.106 R)
• M21: 25,723,055 km (0.087 R)
• M22: 28,980,997 km (0.102 R)
• M23: 30,916,794 km (0.114 R)
• M24: 34,257,613 km (0.09 R)
• M25: 37,594,095 km (0.07 R)
• M26: 40,514,544 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 873.2

Radius: 5.5

Gravity: 28.87 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 13.06 AU - 16.2 AU

Year: 20337 Days

Day: 18 Hours

Environment

Temp: -198 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 41,527,383 km

• M1: 68,516 km (0.066 R)
• M2: 391,049 km (0.097 R)
• M3: 696,079 km (0.095 R)
• M4: 1,192,145 km (0.092 R)
• M5: 1,483,412 km (0.115 R)
• M6: 1,957,787 km (0.055 R)
• M7: 2,433,509 km (0.109 R)
• M8: 2,851,485 km (0.092 R)
• M9: 4,155,230 km (0.101 R)
• M10: 4,975,176 km (0.102 R)
• M11: 5,323,739 km (0.108 R)
• M12: 8,341,876 km (0.067 R)
• M13: 9,172,444 km (0.088 R)
• M14: 9,344,930 km (0.1 R)
• M15: 9,875,404 km (0.112 R)
• M16: 10,996,341 km (0.078 R)
• M17: 11,993,261 km (0.109 R)
• M18: 13,340,689 km (0.03 R)
• M19: 14,707,415 km (0.109 R)
• M20: 17,539,004 km (0.099 R)
• M21: 18,711,402 km (0.054 R)
• M22: 19,269,702 km (0.078 R)
• M23: 20,615,484 km (0.058 R)
• M24: 24,915,675 km (0.06 R)
• M25: 26,163,471 km (0.099 R)
• M26: 26,510,837 km (0.068 R)
• M27: 31,834,427 km (0.113 R)
• M28: 39,171,604 km (0.1 R)
• M29: 43,878,103 km (0.058 R)
• M30: 47,216,678 km (0.088 R)
• M31: 51,986,906 km (0.091 R)
• M32: 54,582,429 km (0.103 R)
• M33: 58,044,722 km (0.113 R)
• M34: 59,429,699 km (0.107 R)
• M35: 61,855,129 km (0.099 R)
• M36: 64,345,635 km (0.041 R)
• M37: 72,444,265 km (0.067 R)
• M38: 74,049,151 km (0.069 R)
• M39: 76,855,308 km (0.066 R)
• M40: 77,092,420 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 68.4

Radius: 7.9

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 14.52 AU - 19.52 AU

Year: 25519 Days

Day: 23.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 41,527,383 km

• M1: 109,057 km (0.079 R)
• M2: 386,860 km (0.079 R)
• M3: 1,405,472 km (0.11 R)
• M4: 2,112,771 km (0.071 R)
• M5: 2,407,628 km (0.04 R)
• M6: 2,690,518 km (0.075 R)
• M7: 6,371,373 km (0.06 R)
• M8: 8,693,731 km (0.102 R)
• M9: 10,806,651 km (0.109 R)
• M10: 11,847,254 km (0.119 R)
• M11: 13,182,415 km (0.09 R)
• M12: 15,369,087 km (0.058 R)
• M13: 17,436,679 km (0.08 R)
• M14: 18,356,556 km (0.111 R)
• M15: 24,653,430 km (0.111 R)
• M16: 25,630,753 km (0.113 R)
• M17: 26,449,502 km (0.072 R)
• M18: 30,908,117 km (0.097 R)
• M19: 32,253,600 km (0.109 R)
• M20: 35,060,655 km (0.069 R)

Kuiper Belt

Range: 30.2 - 59.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 406 - 17,489 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit