🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.12

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.58 AU - 0.7 AU

Year: 183 Days

Day: 31.7 Hours

Environment

Temp: 189 °C

Axial Tilt: 6.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.69 AU - 0.83 AU

Year: 236 Days

Day: 28.1 Hours

Environment

Temp: 158 °C

Axial Tilt: 47.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.4

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.4 AU - 2.21 AU

Year: 861 Days

Day: 15.2 Hours

Environment

Temp: -46 °C

Axial Tilt: 64.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,913,339 km

• M1: 558,898 km (0.075 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.72 AU - 1.94 AU

Year: 882 Days

Day: 15.7 Hours

Environment

Temp: -58 °C

Axial Tilt: 48 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.83

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.93 AU - 2.89 AU

Year: 1334 Days

Day: 21.3 Hours

Environment

Temp: -84 °C

Axial Tilt: 17.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 66,913,339 km

• M1: 39,943 km (0.114 R)
• M2: 172,187 km (0.119 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.61

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 2.95 AU - 4.05 AU

Year: 2334 Days

Day: 15.7 Hours

Environment

Temp: -108 °C

Axial Tilt: 24.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 66,913,339 km

• M1: 406,009 km (0.118 R)
• M2: 2,938,252 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 360.2

Radius: 11.7

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 6.12 AU - 8.26 AU

Year: 6872 Days

Day: 8.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,913,339 km

• M1: 145,559 km (0.08 R)
• M2: 597,344 km (0.119 R)
• M3: 1,165,218 km (0.035 R)
• M4: 1,591,572 km (0.117 R)
• M5: 2,122,495 km (0.076 R)
• M6: 2,895,916 km (0.026 R)
• M7: 3,440,751 km (0.106 R)
• M8: 4,099,430 km (0.111 R)
• M9: 4,685,555 km (0.037 R)
• M10: 8,341,577 km (0.057 R)
• M11: 10,696,397 km (0.08 R)
• M12: 12,643,414 km (0.036 R)
• M13: 13,411,449 km (0.063 R)
• M14: 14,704,872 km (0.034 R)
• M15: 15,612,183 km (0.082 R)
• M16: 16,737,758 km (0.047 R)
• M17: 18,171,653 km (0.08 R)
• M18: 18,754,487 km (0.12 R)
• M19: 19,149,874 km (0.084 R)
• M20: 22,149,162 km (0.083 R)
• M21: 26,589,675 km (0.061 R)
• M22: 27,089,182 km (0.057 R)
• M23: 28,799,385 km (0.083 R)
• M24: 29,503,243 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 655.4

Radius: 7.1

Gravity: 13 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 10.99 AU - 16.27 AU

Year: 17937 Days

Day: 21.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 66,913,339 km

• M1: 88,712 km (0.077 R)
• M2: 522,097 km (0.071 R)
• M3: 839,992 km (0.058 R)
• M4: 1,617,003 km (0.085 R)
• M5: 3,391,833 km (0.118 R)
• M6: 3,879,372 km (0.097 R)
• M7: 5,359,045 km (0.113 R)
• M8: 5,899,841 km (0.106 R)
• M9: 6,561,811 km (0.095 R)
• M10: 8,637,332 km (0.072 R)
• M11: 12,057,738 km (0.112 R)
• M12: 15,662,747 km (0.036 R)
• M13: 16,207,882 km (0.117 R)
• M14: 16,685,099 km (0.087 R)
• M15: 17,667,509 km (0.092 R)
• M16: 18,343,541 km (0.12 R)
• M17: 24,076,730 km (0.083 R)
• M18: 24,593,740 km (0.097 R)
• M19: 29,466,891 km (0.08 R)
• M20: 30,778,715 km (0.095 R)
• M21: 37,234,162 km (0.116 R)
• M22: 41,069,103 km (0.09 R)
• M23: 42,704,208 km (0.066 R)
• M24: 43,614,062 km (0.045 R)
• M25: 45,003,079 km (0.105 R)
• M26: 49,015,892 km (0.118 R)
• M27: 61,507,464 km (0.053 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 572.9

Radius: 5.7

Gravity: 17.63 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 11.83 AU - 15.53 AU

Year: 18035 Days

Day: 18.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 66,913,339 km

• M1: 87,664 km (0.088 R)
• M2: 283,189 km (0.045 R)
• M3: 735,124 km (0.089 R)
• M4: 1,701,077 km (0.039 R)
• M5: 2,791,945 km (0.084 R)
• M6: 3,796,944 km (0.071 R)
• M7: 4,066,519 km (0.064 R)
• M8: 4,779,652 km (0.064 R)
• M9: 5,130,010 km (0.072 R)
• M10: 6,791,594 km (0.106 R)
• M11: 7,055,036 km (0.111 R)
• M12: 7,509,364 km (0.116 R)
• M13: 8,679,369 km (0.117 R)
• M14: 9,147,910 km (0.1 R)
• M15: 10,479,630 km (0.099 R)
• M16: 12,978,214 km (0.039 R)
• M17: 19,727,920 km (0.072 R)
• M18: 22,413,351 km (0.073 R)
• M19: 37,603,968 km (0.08 R)
• M20: 39,547,394 km (0.116 R)
• M21: 44,238,783 km (0.068 R)
• M22: 44,696,702 km (0.047 R)
• M23: 51,108,617 km (0.116 R)
• M24: 63,175,181 km (0.07 R)
• M25: 63,950,247 km (0.071 R)
• M26: 64,145,024 km (0.086 R)

Kuiper Belt

Range: 30.8 - 45.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 152 - 11,367 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit