🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.84 AU - 0.86 AU

Year: 283 Days

Day: 16 Hours

Environment

Temp: 166 °C

Axial Tilt: 26 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 104,055,157 km

• M1: 43,383 km (0.107 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.55 AU - 2.45 AU

Year: 1023 Days

Day: 13.6 Hours

Environment

Temp: -56 °C

Axial Tilt: 13.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 2.02 AU - 3.04 AU

Year: 1455 Days

Day: 24.4 Hours

Environment

Temp: -93 °C

Axial Tilt: 22.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 104,055,157 km

• M1: 1,817,016 km (0.043 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 3.4 AU - 4.24 AU

Year: 2700 Days

Day: 24.8 Hours

Environment

Temp: -118 °C

Axial Tilt: 22.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 104,055,157 km

• M1: 82,129 km (0.112 R)
• M2: 1,799,513 km (0.112 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 3.4 AU - 4.44 AU

Year: 2807 Days

Day: 22.8 Hours

Environment

Temp: -126 °C

Axial Tilt: 3.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 4.25 AU - 4.39 AU

Year: 3247 Days

Day: 18.9 Hours

Environment

Temp: -118 °C

Axial Tilt: 41.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.99 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.5

Radius: 8

Gravity: 13.43 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 5.04 AU - 6.28 AU

Year: 4870 Days

Day: 12.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 104,055,157 km

• M1: 114,592 km (0.073 R)
• M2: 412,142 km (0.094 R)
• M3: 861,534 km (0.062 R)
• M4: 1,194,539 km (0.058 R)
• M5: 1,479,074 km (0.104 R)
• M6: 1,781,860 km (0.093 R)
• M7: 2,346,742 km (0.088 R)
• M8: 2,671,369 km (0.088 R)
• M9: 3,006,468 km (0.109 R)
• M10: 4,063,228 km (0.054 R)
• M11: 4,957,225 km (0.115 R)
• M12: 6,519,026 km (0.116 R)
• M13: 7,198,949 km (0.103 R)
• M14: 7,739,296 km (0.063 R)
• M15: 8,540,842 km (0.106 R)
• M16: 9,187,852 km (0.041 R)
• M17: 9,651,307 km (0.073 R)
• M18: 10,398,249 km (0.067 R)
• M19: 10,670,816 km (0.104 R)
• M20: 13,079,192 km (0.099 R)
• M21: 14,493,939 km (0.06 R)
• M22: 14,891,720 km (0.047 R)
• M23: 15,296,681 km (0.101 R)
• M24: 16,555,847 km (0.067 R)
• M25: 19,007,606 km (0.09 R)
• M26: 20,178,958 km (0.064 R)
• M27: 20,962,102 km (0.072 R)
• M28: 21,839,344 km (0.11 R)
• M29: 22,287,091 km (0.116 R)
• M30: 25,594,401 km (0.079 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.3

Radius: 10.5

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 8.52 AU - 13.42 AU

Year: 13140 Days

Day: 14.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 104,055,157 km

• M1: 131,347 km (0.026 R)
• M2: 524,640 km (0.049 R)
• M3: 1,371,364 km (0.101 R)
• M4: 1,860,100 km (0.113 R)
• M5: 2,443,831 km (0.082 R)
• M6: 3,376,723 km (0.101 R)
• M7: 3,795,298 km (0.099 R)
• M8: 4,166,002 km (0.087 R)
• M9: 4,858,041 km (0.09 R)
• M10: 5,932,603 km (0.084 R)
• M11: 6,582,157 km (0.112 R)
• M12: 9,858,799 km (0.092 R)
• M13: 11,139,506 km (0.038 R)
• M14: 12,071,651 km (0.038 R)
• M15: 12,818,892 km (0.092 R)
• M16: 14,216,286 km (0.087 R)
• M17: 15,915,269 km (0.049 R)
• M18: 18,485,809 km (0.088 R)
• M19: 22,583,893 km (0.113 R)
• M20: 28,335,333 km (0.103 R)
• M21: 29,654,038 km (0.082 R)
• M22: 31,439,638 km (0.044 R)
• M23: 33,407,299 km (0.042 R)
• M24: 34,878,594 km (0.061 R)
• M25: 38,683,317 km (0.104 R)
• M26: 40,685,684 km (0.055 R)
• M27: 45,854,291 km (0.086 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 839.4

Radius: 8

Gravity: 13.12 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 16.94 AU - 20.16 AU

Year: 28894 Days

Day: 24.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 104,055,157 km

• M1: 206,595 km (0.103 R)
• M2: 601,234 km (0.092 R)
• M3: 1,034,918 km (0.109 R)
• M4: 1,500,915 km (0.075 R)
• M5: 4,257,855 km (0.115 R)
• M6: 5,985,710 km (0.118 R)
• M7: 10,284,255 km (0.113 R)
• M8: 10,755,339 km (0.116 R)
• M9: 11,524,422 km (0.042 R)
• M10: 12,861,378 km (0.096 R)
• M11: 14,134,156 km (0.105 R)
• M12: 18,749,849 km (0.056 R)
• M13: 25,115,538 km (0.113 R)
• M14: 27,223,372 km (0.065 R)
• M15: 30,122,429 km (0.107 R)
• M16: 40,539,976 km (0.09 R)
• M17: 53,324,759 km (0.083 R)
• M18: 58,684,702 km (0.108 R)
• M19: 59,325,429 km (0.081 R)
• M20: 69,503,171 km (0.03 R)
• M21: 74,128,587 km (0.103 R)
• M22: 79,214,765 km (0.045 R)
• M23: 81,048,536 km (0.056 R)
• M24: 100,053,300 km (0.105 R)

Kuiper Belt

Range: 30.3 - 54.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 439 - 15,323 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit