🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.45 AU - 0.57 AU

Year: 134 Days

Day: 41.2 Hours

Environment

Temp: 172 °C

Axial Tilt: 24.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.23

Radius: 0.56

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.41 AU - 0.65 AU

Year: 142 Days

Day: 31.1 Hours

Environment

Temp: 190 °C

Axial Tilt: 168.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.27

Radius: 1.61

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.74 AU - 1.04 AU

Year: 310 Days

Day: 42 Hours

Environment

Temp: 142 °C

Axial Tilt: 11.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.4

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.67 AU - 2.27 AU

Year: 1020 Days

Day: 34.5 Hours

Environment

Temp: -67 °C

Axial Tilt: 46.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 105,514,381 km

• M1: 108,458 km (0.089 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.06

Radius: 1.56

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 2.35 AU - 2.71 AU

Year: 1485 Days

Day: 16.1 Hours

Environment

Temp: -92 °C

Axial Tilt: 18.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.87 AU - 2.97 AU

Year: 1841 Days

Day: 45.3 Hours

Environment

Temp: -103 °C

Axial Tilt: 24.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 10.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.6

Radius: 13.9

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 8.22 AU - 12.06 AU

Year: 11913 Days

Day: 5.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 105,514,381 km

• M1: 173,683 km (0.079 R)
• M2: 1,245,701 km (0.111 R)
• M3: 1,814,772 km (0.05 R)
• M4: 2,744,223 km (0.065 R)
• M5: 3,943,699 km (0.061 R)
• M6: 5,537,365 km (0.112 R)
• M7: 6,154,456 km (0.079 R)
• M8: 7,440,848 km (0.08 R)
• M9: 8,996,816 km (0.086 R)
• M10: 9,955,738 km (0.098 R)
• M11: 12,317,141 km (0.119 R)
• M12: 12,992,874 km (0.114 R)
• M13: 13,757,918 km (0.055 R)
• M14: 14,485,562 km (0.076 R)
• M15: 17,502,352 km (0.055 R)
• M16: 20,572,998 km (0.048 R)
• M17: 22,870,373 km (0.114 R)
• M18: 25,334,100 km (0.105 R)
• M19: 26,327,280 km (0.08 R)
• M20: 37,221,596 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 806.5

Radius: 7.1

Gravity: 16 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 17.27 AU - 20.35 AU

Year: 30100 Days

Day: 24.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 105,514,381 km

• M1: 96,042 km (0.106 R)
• M2: 325,375 km (0.078 R)
• M3: 597,195 km (0.1 R)
• M4: 1,150,707 km (0.044 R)
• M5: 4,455,174 km (0.059 R)
• M6: 5,692,498 km (0.086 R)
• M7: 9,007,886 km (0.106 R)
• M8: 9,316,058 km (0.116 R)
• M9: 11,602,512 km (0.098 R)
• M10: 11,893,928 km (0.113 R)
• M11: 12,265,081 km (0.093 R)
• M12: 12,644,012 km (0.091 R)
• M13: 14,912,065 km (0.04 R)
• M14: 16,874,191 km (0.09 R)
• M15: 18,901,990 km (0.08 R)
• M16: 19,715,354 km (0.096 R)
• M17: 20,658,120 km (0.104 R)
• M18: 21,303,186 km (0.054 R)
• M19: 24,135,821 km (0.038 R)
• M20: 26,074,909 km (0.091 R)
• M21: 26,575,463 km (0.092 R)
• M22: 29,850,161 km (0.115 R)
• M23: 32,656,018 km (0.098 R)
• M24: 42,636,590 km (0.094 R)
• M25: 44,210,060 km (0.11 R)
• M26: 46,003,440 km (0.105 R)
• M27: 47,658,441 km (0.037 R)
• M28: 59,718,273 km (0.102 R)
• M29: 60,806,448 km (0.12 R)
• M30: 94,239,777 km (0.031 R)
• M31: 96,605,667 km (0.094 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: 257 - 11,678 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit