🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.51 AU - 0.57 AU

Year: 146 Days

Day: 38 Hours

Environment

Temp: 231 °C

Axial Tilt: 8.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 87,307,309 km

• M1: 171,290 km (0.115 R)
• M2: 195,524 km (0.053 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.68

Radius: 0.86

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.16 AU - 1.44 AU

Year: 544 Days

Day: 24.8 Hours

Environment

Temp: 7 °C

Axial Tilt: 38.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 2.7 AU - 3.14 AU

Year: 1832 Days

Day: 17.9 Hours

Environment

Temp: -100 °C

Axial Tilt: 18.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.24 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 946.2

Radius: 11.1

Gravity: 7.68 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 4.26 AU - 6.86 AU

Year: 4813 Days

Day: 7.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 87,307,309 km

• M1: 138,228 km (0.107 R)
• M2: 556,354 km (0.116 R)
• M3: 1,501,963 km (0.117 R)
• M4: 1,957,787 km (0.048 R)
• M5: 3,336,332 km (0.095 R)
• M6: 3,885,505 km (0.057 R)
• M7: 4,519,651 km (0.104 R)
• M8: 6,979,937 km (0.095 R)
• M9: 10,089,030 km (0.103 R)
• M10: 13,047,477 km (0.056 R)
• M11: 14,983,723 km (0.105 R)
• M12: 16,541,037 km (0.117 R)
• M13: 17,041,142 km (0.089 R)
• M14: 20,613,988 km (0.092 R)
• M15: 22,007,941 km (0.046 R)
• M16: 23,620,606 km (0.075 R)
• M17: 26,822,449 km (0.107 R)
• M18: 27,252,693 km (0.029 R)
• M19: 27,863,052 km (0.067 R)
• M20: 28,750,616 km (0.078 R)
• M21: 29,840,586 km (0.107 R)

Planet 5 - Ice Giant

Semi-Major Axis: 12.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 260

Radius: 5.2

Gravity: 9.62 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 11.69 AU - 13.23 AU

Year: 16145 Days

Day: 24.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 87,307,309 km

• M1: 65,524 km (0.092 R)
• M2: 245,789 km (0.074 R)
• M3: 667,954 km (0.048 R)
• M4: 846,275 km (0.042 R)
• M5: 1,955,992 km (0.116 R)
• M6: 2,144,934 km (0.11 R)
• M7: 2,500,379 km (0.095 R)
• M8: 3,140,359 km (0.085 R)
• M9: 4,100,178 km (0.05 R)
• M10: 9,811,227 km (0.058 R)
• M11: 11,487,620 km (0.066 R)
• M12: 13,653,498 km (0.085 R)
• M13: 18,316,913 km (0.115 R)
• M14: 19,471,808 km (0.096 R)
• M15: 21,755,869 km (0.103 R)
• M16: 24,854,489 km (0.084 R)
• M17: 28,741,641 km (0.105 R)
• M18: 32,019,031 km (0.093 R)
• M19: 33,690,787 km (0.116 R)
• M20: 39,556,071 km (0.114 R)
• M21: 45,095,829 km (0.067 R)

Planet 6 - Ice Giant

Semi-Major Axis: 16.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 740.2

Radius: 4.4

Gravity: 38.23 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 12.87 AU - 19.27 AU

Year: 23648 Days

Day: 21.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 87,307,309 km

• M1: 55,052 km (0.06 R)
• M2: 530,474 km (0.079 R)
• M3: 1,734,288 km (0.114 R)
• M4: 2,138,950 km (0.075 R)
• M5: 3,484,134 km (0.082 R)
• M6: 5,391,358 km (0.111 R)
• M7: 6,246,010 km (0.048 R)
• M8: 7,589,100 km (0.107 R)
• M9: 7,952,772 km (0.116 R)
• M10: 10,637,306 km (0.082 R)
• M11: 12,252,514 km (0.058 R)
• M12: 12,971,183 km (0.104 R)
• M13: 13,192,288 km (0.12 R)
• M14: 14,970,857 km (0.104 R)
• M15: 15,959,550 km (0.107 R)
• M16: 17,078,691 km (0.088 R)
• M17: 19,568,598 km (0.098 R)
• M18: 21,976,077 km (0.112 R)
• M19: 22,607,380 km (0.096 R)
• M20: 23,795,935 km (0.106 R)
• M21: 24,349,746 km (0.105 R)
• M22: 24,573,694 km (0.092 R)
• M23: 24,912,085 km (0.1 R)
• M24: 27,368,930 km (0.108 R)
• M25: 30,368,817 km (0.079 R)
• M26: 30,628,219 km (0.113 R)
• M27: 34,277,211 km (0.054 R)
• M28: 42,585,427 km (0.089 R)
• M29: 44,560,718 km (0.1 R)
• M30: 45,570,952 km (0.084 R)
• M31: 46,768,633 km (0.099 R)
• M32: 47,114,653 km (0.079 R)
• M33: 48,870,483 km (0.117 R)
• M34: 51,769,690 km (0.102 R)
• M35: 52,885,839 km (0.075 R)
• M36: 55,358,842 km (0.075 R)
• M37: 58,107,254 km (0.061 R)
• M38: 67,334,750 km (0.117 R)
• M39: 74,626,898 km (0.115 R)
• M40: 77,250,246 km (0.109 R)
• M41: 85,229,946 km (0.111 R)
• M42: 87,307,262 km (0.109 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: 533 - 19,473 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit