🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.85

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.62 AU - 0.92 AU

Year: 247 Days

Day: 19 Hours

Environment

Temp: 138 °C

Axial Tilt: 8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 77,243,234 km

• M1: 46,675 km (0.074 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.72 AU - 0.84 AU

Year: 252 Days

Day: 47.4 Hours

Environment

Temp: 153 °C

Axial Tilt: 11.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 77,243,234 km

• M1: 41,289 km (0.095 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.24

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.48 AU - 1.56 AU

Year: 684 Days

Day: 41.1 Hours

Environment

Temp: -46 °C

Axial Tilt: 23.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.7

Radius: 0.87

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 3.52 AU - 4.98 AU

Year: 3200 Days

Day: 14 Hours

Environment

Temp: -119 °C

Axial Tilt: 19.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.61 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 6.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.9

Radius: 13.5

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 5.5 AU - 8.42 AU

Year: 6707 Days

Day: 6.5 Hours

Environment

Temp: -162 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 77,243,234 km

• M1: 169,494 km (0.065 R)
• M2: 598,990 km (0.052 R)
• M3: 1,312,123 km (0.116 R)
• M4: 2,518,630 km (0.054 R)
• M5: 3,409,934 km (0.071 R)
• M6: 3,929,637 km (0.045 R)
• M7: 5,250,137 km (0.101 R)
• M8: 7,256,544 km (0.103 R)
• M9: 8,162,957 km (0.095 R)
• M10: 8,750,877 km (0.11 R)
• M11: 9,824,391 km (0.054 R)
• M12: 11,135,168 km (0.096 R)
• M13: 12,178,912 km (0.087 R)
• M14: 13,003,795 km (0.115 R)
• M15: 13,516,467 km (0.073 R)
• M16: 15,767,316 km (0.089 R)
• M17: 16,219,700 km (0.094 R)
• M18: 17,906,865 km (0.099 R)
• M19: 21,000,549 km (0.105 R)
• M20: 23,585,002 km (0.106 R)
• M21: 24,007,167 km (0.081 R)
• M22: 24,953,673 km (0.116 R)
• M23: 30,560,601 km (0.078 R)
• M24: 32,083,208 km (0.095 R)
• M25: 33,443,352 km (0.046 R)
• M26: 34,515,520 km (0.096 R)
• M27: 35,060,206 km (0.072 R)
• M28: 37,068,408 km (0.1 R)
• M29: 38,916,988 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399.5

Radius: 15

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 9.04 AU - 9.74 AU

Year: 10510 Days

Day: 5.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 77,243,234 km

• M1: 186,549 km (0.037 R)
• M2: 749,186 km (0.11 R)
• M3: 1,390,662 km (0.092 R)
• M4: 2,125,337 km (0.093 R)
• M5: 3,089,645 km (0.091 R)
• M6: 5,717,631 km (0.038 R)
• M7: 6,603,848 km (0.036 R)
• M8: 7,980,149 km (0.069 R)
• M9: 9,222,110 km (0.075 R)
• M10: 11,040,323 km (0.114 R)
• M11: 12,692,482 km (0.069 R)
• M12: 13,201,713 km (0.065 R)
• M13: 16,953,777 km (0.075 R)
• M14: 19,893,824 km (0.108 R)
• M15: 20,427,739 km (0.045 R)
• M16: 22,495,481 km (0.103 R)
• M17: 23,580,215 km (0.096 R)
• M18: 30,530,382 km (0.083 R)
• M19: 31,139,246 km (0.075 R)
• M20: 32,802,624 km (0.049 R)
• M21: 33,656,230 km (0.118 R)
• M22: 34,306,083 km (0.117 R)
• M23: 35,630,922 km (0.103 R)
• M24: 39,450,305 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 409.3

Radius: 7.7

Gravity: 6.9 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 14.34 AU - 20.42 AU

Year: 26465 Days

Day: 22.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 77,243,234 km

• M1: 95,892 km (0.034 R)
• M2: 388,655 km (0.084 R)
• M3: 658,979 km (0.047 R)
• M4: 1,097,001 km (0.049 R)
• M5: 2,056,223 km (0.087 R)
• M6: 2,996,146 km (0.116 R)
• M7: 3,635,527 km (0.098 R)
• M8: 3,909,292 km (0.105 R)
• M9: 4,329,063 km (0.118 R)
• M10: 4,886,614 km (0.093 R)
• M11: 5,976,285 km (0.114 R)
• M12: 6,315,573 km (0.051 R)
• M13: 7,556,188 km (0.102 R)
• M14: 9,006,390 km (0.112 R)
• M15: 16,759,599 km (0.083 R)
• M16: 18,216,533 km (0.064 R)
• M17: 19,570,543 km (0.092 R)
• M18: 29,373,542 km (0.107 R)
• M19: 36,145,838 km (0.099 R)
• M20: 37,130,341 km (0.118 R)
• M21: 42,167,301 km (0.116 R)
• M22: 43,415,247 km (0.118 R)
• M23: 46,477,665 km (0.115 R)
• M24: 46,808,276 km (0.072 R)
• M25: 49,681,154 km (0.113 R)
• M26: 51,248,790 km (0.101 R)
• M27: 55,589,671 km (0.054 R)
• M28: 58,231,869 km (0.061 R)
• M29: 62,954,075 km (0.102 R)
• M30: 67,713,083 km (0.106 R)
• M31: 69,854,875 km (0.089 R)
• M32: 75,634,439 km (0.12 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 492 - 15,547 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit