🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.62

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.49 AU - 0.73 AU

Year: 180 Days

Day: 26.9 Hours

Environment

Temp: 167 °C

Axial Tilt: 34.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.23

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.76 AU - 1.12 AU

Year: 345 Days

Day: 29.7 Hours

Environment

Temp: 9 °C

Axial Tilt: 6.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 57,546,227 km

• M1: 277,953 km (0.047 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.08

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.92 AU - 1.26 AU

Year: 431 Days

Day: 29.5 Hours

Environment

Temp: 8 °C

Axial Tilt: 16.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Gas Giant

Semi-Major Axis: 4.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.3

Radius: 14.5

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 4.11 AU - 5.53 AU

Year: 4008 Days

Day: 13.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 57,546,227 km

• M1: 183,856 km (0.082 R)
• M2: 2,664,488 km (0.073 R)
• M3: 3,918,267 km (0.085 R)
• M4: 5,592,417 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.2

Radius: 8.6

Gravity: 12.23 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 7.28 AU - 10.52 AU

Year: 10056 Days

Day: 7.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 57,546,227 km

• M1: 108,309 km (0.114 R)
• M2: 384,467 km (0.088 R)
• M3: 844,181 km (0.12 R)
• M4: 2,177,098 km (0.104 R)
• M5: 3,554,296 km (0.116 R)
• M6: 4,037,198 km (0.117 R)
• M7: 4,563,034 km (0.081 R)
• M8: 5,575,363 km (0.105 R)
• M9: 6,533,986 km (0.041 R)
• M10: 8,127,204 km (0.115 R)
• M11: 8,727,390 km (0.09 R)
• M12: 9,456,231 km (0.119 R)
• M13: 9,758,867 km (0.044 R)
• M14: 10,869,482 km (0.098 R)
• M15: 12,358,579 km (0.095 R)
• M16: 14,372,167 km (0.045 R)
• M17: 18,720,229 km (0.109 R)
• M18: 20,681,008 km (0.116 R)
• M19: 21,191,735 km (0.083 R)
• M20: 21,536,857 km (0.077 R)
• M21: 21,885,869 km (0.049 R)
• M22: 28,098,070 km (0.114 R)
• M23: 28,619,718 km (0.109 R)
• M24: 31,436,497 km (0.118 R)
• M25: 33,725,194 km (0.101 R)
• M26: 35,513,039 km (0.026 R)
• M27: 36,368,738 km (0.026 R)
• M28: 36,863,758 km (0.095 R)
• M29: 39,147,220 km (0.095 R)
• M30: 39,667,072 km (0.075 R)
• M31: 45,407,890 km (0.109 R)
• M32: 46,560,841 km (0.098 R)
• M33: 48,774,890 km (0.062 R)
• M34: 50,595,945 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.3

Radius: 12.8

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 8.5 AU - 10.64 AU

Year: 11213 Days

Day: 5.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,546,227 km

• M1: 192,981 km (0.095 R)
• M2: 680,670 km (0.119 R)
• M3: 1,200,972 km (0.064 R)
• M4: 1,634,357 km (0.095 R)
• M5: 2,715,800 km (0.1 R)
• M6: 4,253,516 km (0.119 R)
• M7: 5,814,570 km (0.029 R)
• M8: 6,584,849 km (0.071 R)
• M9: 8,452,429 km (0.087 R)
• M10: 9,441,421 km (0.114 R)
• M11: 16,083,566 km (0.069 R)
• M12: 16,535,352 km (0.068 R)
• M13: 17,464,654 km (0.075 R)
• M14: 18,852,174 km (0.092 R)
• M15: 20,992,770 km (0.117 R)
• M16: 23,045,851 km (0.052 R)
• M17: 24,289,309 km (0.05 R)
• M18: 25,315,999 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.7

Radius: 12.9

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 8.88 AU - 12.24 AU

Year: 12997 Days

Day: 11.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 57,546,227 km

• M1: 167,550 km (0.108 R)
• M2: 788,231 km (0.077 R)
• M3: 1,545,645 km (0.115 R)
• M4: 2,204,025 km (0.094 R)
• M5: 3,384,502 km (0.056 R)
• M6: 4,691,240 km (0.119 R)
• M7: 6,586,495 km (0.059 R)
• M8: 7,120,559 km (0.092 R)
• M9: 8,849,761 km (0.115 R)
• M10: 10,956,548 km (0.112 R)
• M11: 12,006,276 km (0.103 R)
• M12: 12,742,597 km (0.094 R)
• M13: 13,969,898 km (0.111 R)
• M14: 14,923,435 km (0.053 R)
• M15: 19,259,080 km (0.068 R)
• M16: 20,960,906 km (0.108 R)
• M17: 22,119,541 km (0.063 R)
• M18: 27,184,027 km (0.082 R)
• M19: 29,322,080 km (0.092 R)
• M20: 30,432,246 km (0.062 R)
• M21: 33,569,463 km (0.083 R)
• M22: 36,916,267 km (0.094 R)
• M23: 38,472,832 km (0.079 R)
• M24: 40,072,632 km (0.098 R)
• M25: 41,026,169 km (0.12 R)
• M26: 45,578,582 km (0.09 R)
• M27: 46,617,539 km (0.085 R)
• M28: 47,369,268 km (0.111 R)
• M29: 49,361,613 km (0.105 R)
• M30: 51,249,687 km (0.119 R)
• M31: 51,729,149 km (0.115 R)
• M32: 56,860,355 km (0.09 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 518 - 20,124 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit