🌌 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: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.5 AU - 0.58 AU

Year: 152 Days

Day: 20.8 Hours

Environment

Temp: 210 °C

Axial Tilt: 38.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.49

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.8 AU - 0.86 AU

Year: 290 Days

Day: 42.6 Hours

Environment

Temp: 47 °C

Axial Tilt: 35.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.92

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.02 AU - 1.28 AU

Year: 472 Days

Day: 20.3 Hours

Environment

Temp: -5 °C

Axial Tilt: 175.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.62

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.92 AU - 1.4 AU

Year: 478 Days

Day: 35.5 Hours

Environment

Temp: 4 °C

Axial Tilt: 39.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Ice Giant

Semi-Major Axis: 12.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 66.5

Radius: 5.9

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 12.09 AU - 12.95 AU

Year: 16962 Days

Day: 17.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 101,822,566 km

• M1: 75,996 km (0.077 R)
• M2: 362,924 km (0.101 R)
• M3: 597,793 km (0.109 R)
• M4: 1,186,610 km (0.065 R)
• M5: 1,471,893 km (0.079 R)
• M6: 5,022,898 km (0.073 R)
• M7: 5,831,923 km (0.059 R)
• M8: 7,451,470 km (0.108 R)
• M9: 7,926,892 km (0.077 R)
• M10: 8,777,356 km (0.075 R)
• M11: 10,297,719 km (0.052 R)
• M12: 11,692,270 km (0.066 R)
• M13: 20,516,002 km (0.047 R)
• M14: 26,285,991 km (0.082 R)
• M15: 27,214,097 km (0.072 R)
• M16: 27,815,929 km (0.07 R)
• M17: 28,076,528 km (0.089 R)
• M18: 28,426,587 km (0.068 R)
• M19: 30,865,930 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 14.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 196.8

Radius: 5.8

Gravity: 5.85 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 13.34 AU - 16.58 AU

Year: 22155 Days

Day: 24.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 101,822,566 km

• M1: 72,106 km (0.041 R)
• M2: 390,450 km (0.047 R)
• M3: 1,565,392 km (0.114 R)
• M4: 1,782,010 km (0.101 R)
• M5: 1,983,668 km (0.104 R)
• M6: 2,295,579 km (0.095 R)
• M7: 3,611,741 km (0.082 R)
• M8: 4,996,270 km (0.069 R)
• M9: 5,504,154 km (0.115 R)
• M10: 5,971,648 km (0.098 R)
• M11: 8,954,330 km (0.081 R)
• M12: 10,013,184 km (0.088 R)
• M13: 15,156,658 km (0.117 R)
• M14: 22,537,368 km (0.085 R)
• M15: 26,840,700 km (0.079 R)
• M16: 28,917,568 km (0.115 R)
• M17: 29,453,128 km (0.094 R)
• M18: 29,669,147 km (0.081 R)
• M19: 29,995,121 km (0.065 R)
• M20: 31,211,053 km (0.083 R)
• M21: 31,435,749 km (0.091 R)
• M22: 32,115,820 km (0.07 R)
• M23: 33,154,329 km (0.07 R)
• M24: 34,096,197 km (0.118 R)
• M25: 37,154,127 km (0.118 R)
• M26: 39,728,407 km (0.064 R)
• M27: 43,249,343 km (0.115 R)
• M28: 44,657,208 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 701.7

Radius: 7.9

Gravity: 11.24 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 18.1 AU - 19 AU

Year: 30590 Days

Day: 20.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 101,822,566 km

• M1: 102,175 km (0.083 R)
• M2: 1,196,185 km (0.1 R)
• M3: 1,668,764 km (0.065 R)
• M4: 2,453,106 km (0.102 R)
• M5: 2,736,444 km (0.107 R)
• M6: 6,805,806 km (0.108 R)
• M7: 8,413,833 km (0.115 R)
• M8: 8,704,651 km (0.114 R)
• M9: 10,392,265 km (0.104 R)
• M10: 11,631,683 km (0.109 R)
• M11: 13,831,670 km (0.081 R)
• M12: 16,838,736 km (0.1 R)
• M13: 21,742,704 km (0.078 R)
• M14: 24,814,248 km (0.092 R)
• M15: 26,021,652 km (0.093 R)
• M16: 26,515,475 km (0.108 R)
• M17: 29,078,535 km (0.107 R)
• M18: 31,522,515 km (0.091 R)
• M19: 32,083,657 km (0.079 R)
• M20: 44,051,487 km (0.116 R)
• M21: 58,684,402 km (0.056 R)
• M22: 64,800,562 km (0.066 R)
• M23: 87,589,852 km (0.037 R)
• M24: 89,536,121 km (0.076 R)
• M25: 93,514,676 km (0.105 R)
• M26: 96,722,354 km (0.077 R)
• M27: 100,304,325 km (0.044 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 311 - 19,539 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit