🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.7 AU - 0.94 AU

Year: 260 Days

Day: 30 Hours

Environment

Temp: 205 °C

Axial Tilt: 36.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 78,984,374 km

• M1: 97,687 km (0.096 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.68

Radius: 0.86

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.24 AU - 1.72 AU

Year: 630 Days

Day: 38 Hours

Environment

Temp: -15 °C

Axial Tilt: 12.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.78

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.71 AU - 2.57 AU

Year: 1095 Days

Day: 43.8 Hours

Environment

Temp: -56 °C

Axial Tilt: 23.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 78,984,374 km

• M1: 163,211 km (0.075 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 2.27 AU - 2.81 AU

Year: 1416 Days

Day: 15.1 Hours

Environment

Temp: -76 °C

Axial Tilt: 22.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 78,984,374 km

• M1: 1,745,358 km (0.107 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.33

Radius: 1.4

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.88 AU - 3.68 AU

Year: 2078 Days

Day: 37.3 Hours

Environment

Temp: -95 °C

Axial Tilt: 18.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 2.69 AU - 3.87 AU

Year: 2078 Days

Day: 27.4 Hours

Environment

Temp: -99 °C

Axial Tilt: 7.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.86 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 8.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804.7

Radius: 14.8

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 7.33 AU - 9.55 AU

Year: 8578 Days

Day: 7 Hours

Environment

Temp: -166 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 78,984,374 km

• M1: 186,399 km (0.114 R)
• M2: 723,007 km (0.027 R)
• M3: 1,411,905 km (0.117 R)
• M4: 2,288,249 km (0.09 R)
• M5: 3,901,662 km (0.105 R)
• M6: 4,524,588 km (0.061 R)
• M7: 5,937,091 km (0.069 R)
• M8: 6,431,960 km (0.112 R)
• M9: 7,265,669 km (0.077 R)
• M10: 8,429,990 km (0.101 R)
• M11: 9,011,327 km (0.09 R)
• M12: 15,319,271 km (0.069 R)
• M13: 18,612,219 km (0.104 R)
• M14: 20,147,243 km (0.08 R)
• M15: 26,093,160 km (0.114 R)
• M16: 28,309,901 km (0.057 R)
• M17: 29,311,908 km (0.098 R)
• M18: 29,821,737 km (0.043 R)
• M19: 31,706,371 km (0.088 R)
• M20: 32,677,860 km (0.11 R)
• M21: 33,336,390 km (0.107 R)
• M22: 34,228,442 km (0.083 R)
• M23: 35,480,725 km (0.044 R)
• M24: 40,042,712 km (0.075 R)
• M25: 42,334,402 km (0.099 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 637.9

Radius: 10.9

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 8.65 AU - 9.95 AU

Year: 9922 Days

Day: 12.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 78,984,374 km

• M1: 135,685 km (0.056 R)
• M2: 571,763 km (0.102 R)
• M3: 999,613 km (0.091 R)
• M4: 1,439,880 km (0.056 R)
• M5: 2,025,555 km (0.118 R)
• M6: 2,764,569 km (0.079 R)
• M7: 3,219,795 km (0.091 R)
• M8: 5,080,044 km (0.041 R)
• M9: 6,294,330 km (0.046 R)
• M10: 7,651,482 km (0.109 R)
• M11: 8,688,644 km (0.106 R)
• M12: 10,114,162 km (0.08 R)
• M13: 12,079,878 km (0.085 R)
• M14: 13,974,984 km (0.116 R)
• M15: 14,928,372 km (0.043 R)
• M16: 15,454,358 km (0.116 R)
• M17: 19,801,223 km (0.108 R)
• M18: 20,516,750 km (0.088 R)
• M19: 21,497,513 km (0.057 R)
• M20: 22,168,460 km (0.11 R)
• M21: 22,680,832 km (0.081 R)
• M22: 24,265,523 km (0.096 R)
• M23: 37,480,999 km (0.109 R)
• M24: 39,566,692 km (0.11 R)
• M25: 40,956,755 km (0.034 R)
• M26: 45,596,384 km (0.074 R)
• M27: 46,147,951 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 525.3

Radius: 6.1

Gravity: 14.12 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 13.56 AU - 20.1 AU

Year: 24155 Days

Day: 17.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 78,984,374 km

• M1: 75,846 km (0.1 R)
• M2: 331,658 km (0.116 R)
• M3: 528,380 km (0.106 R)
• M4: 950,994 km (0.119 R)
• M5: 2,661,496 km (0.067 R)
• M6: 3,401,407 km (0.064 R)
• M7: 4,040,489 km (0.081 R)
• M8: 4,509,029 km (0.113 R)
• M9: 4,720,710 km (0.082 R)
• M10: 5,240,413 km (0.082 R)
• M11: 5,514,327 km (0.098 R)
• M12: 9,189,947 km (0.102 R)
• M13: 10,118,052 km (0.113 R)
• M14: 15,954,613 km (0.062 R)
• M15: 17,376,989 km (0.098 R)
• M16: 18,430,607 km (0.092 R)
• M17: 19,064,603 km (0.074 R)
• M18: 25,998,016 km (0.069 R)
• M19: 28,080,119 km (0.048 R)
• M20: 34,578,201 km (0.111 R)
• M21: 35,264,556 km (0.05 R)
• M22: 35,541,761 km (0.099 R)
• M23: 40,933,269 km (0.062 R)
• M24: 48,535,533 km (0.062 R)
• M25: 64,368,972 km (0.073 R)
• M26: 67,303,633 km (0.118 R)
• M27: 76,640,784 km (0.054 R)

Kuiper Belt

Range: 31.4 - 48.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 343 - 18,209 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit