🌌 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: 0.82

Radius: 0.92

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.6 AU - 0.68 AU

Year: 181 Days

Day: 12 Hours

Environment

Temp: 211 °C

Axial Tilt: 22.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 86,195,449 km

• M1: 139,724 km (0.08 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.09

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.79 AU - 0.79 AU

Year: 248 Days

Day: 15.9 Hours

Environment

Temp: 199 °C

Axial Tilt: 69.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 86,195,449 km

• M1: 63,280 km (0.055 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.72

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.75 AU - 0.85 AU

Year: 253 Days

Day: 15.4 Hours

Environment

Temp: 164 °C

Axial Tilt: 45.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 86,195,449 km

• M1: 152,590 km (0.099 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.63

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.89 AU - 1.41 AU

Year: 435 Days

Day: 18 Hours

Environment

Temp: 26 °C

Axial Tilt: 12.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 86,195,449 km

• M1: 210,933 km (0.054 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589

Radius: 13.2

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 5.45 AU - 5.89 AU

Year: 4767 Days

Day: 12.3 Hours

Environment

Temp: -144 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 86,195,449 km

• M1: 166,353 km (0.091 R)
• M2: 585,975 km (0.029 R)
• M3: 1,036,713 km (0.116 R)
• M4: 1,791,883 km (0.114 R)
• M5: 3,184,191 km (0.11 R)
• M6: 3,832,099 km (0.041 R)
• M7: 5,020,205 km (0.063 R)
• M8: 7,111,284 km (0.09 R)
• M9: 8,186,295 km (0.082 R)
• M10: 9,771,135 km (0.115 R)
• M11: 10,442,081 km (0.102 R)
• M12: 11,188,574 km (0.057 R)
• M13: 13,286,236 km (0.111 R)
• M14: 13,745,800 km (0.079 R)
• M15: 17,447,151 km (0.106 R)
• M16: 19,526,561 km (0.109 R)
• M17: 20,932,931 km (0.116 R)
• M18: 21,978,171 km (0.09 R)
• M19: 23,278,027 km (0.054 R)
• M20: 24,324,015 km (0.116 R)
• M21: 25,245,239 km (0.117 R)
• M22: 27,075,868 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 12.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.5

Radius: 12.9

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 11.37 AU - 13.49 AU

Year: 15474 Days

Day: 7.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 86,195,449 km

• M1: 160,818 km (0.072 R)
• M2: 610,958 km (0.103 R)
• M3: 1,307,934 km (0.106 R)
• M4: 1,871,170 km (0.111 R)
• M5: 2,280,919 km (0.106 R)
• M6: 3,890,741 km (0.036 R)
• M7: 4,568,270 km (0.103 R)
• M8: 5,516,421 km (0.106 R)
• M9: 7,082,262 km (0.117 R)
• M10: 9,434,390 km (0.045 R)
• M11: 9,863,736 km (0.06 R)
• M12: 12,549,616 km (0.101 R)
• M13: 13,011,275 km (0.096 R)
• M14: 14,590,580 km (0.12 R)
• M15: 17,549,177 km (0.105 R)
• M16: 19,782,224 km (0.099 R)
• M17: 24,447,134 km (0.069 R)
• M18: 25,996,968 km (0.062 R)
• M19: 29,696,524 km (0.11 R)
• M20: 36,114,422 km (0.091 R)
• M21: 36,814,839 km (0.106 R)
• M22: 40,830,046 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 835.3

Radius: 7.5

Gravity: 14.85 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 13.86 AU - 21.02 AU

Year: 25717 Days

Day: 16.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 100.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 86,195,449 km

• M1: 93,349 km (0.09 R)
• M2: 644,019 km (0.059 R)
• M3: 1,034,469 km (0.112 R)
• M4: 3,210,520 km (0.108 R)
• M5: 4,801,493 km (0.092 R)
• M6: 5,321,196 km (0.1 R)
• M7: 6,472,501 km (0.053 R)
• M8: 10,063,449 km (0.108 R)
• M9: 13,286,684 km (0.104 R)
• M10: 15,810,251 km (0.072 R)
• M11: 16,688,091 km (0.116 R)
• M12: 24,797,941 km (0.071 R)
• M13: 29,235,014 km (0.105 R)
• M14: 30,288,183 km (0.075 R)
• M15: 32,191,816 km (0.087 R)
• M16: 32,890,737 km (0.108 R)
• M17: 47,260,361 km (0.119 R)
• M18: 47,800,409 km (0.093 R)
• M19: 51,506,696 km (0.088 R)
• M20: 52,078,609 km (0.115 R)
• M21: 59,485,050 km (0.079 R)
• M22: 65,982,385 km (0.054 R)
• M23: 72,937,040 km (0.042 R)
• M24: 76,096,697 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 487

Radius: 7.5

Gravity: 8.66 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 17.22 AU - 20.22 AU

Year: 28599 Days

Day: 18.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 86,195,449 km

• M1: 95,593 km (0.119 R)
• M2: 407,804 km (0.085 R)
• M3: 761,603 km (0.104 R)
• M4: 1,113,756 km (0.065 R)
• M5: 1,787,994 km (0.1 R)
• M6: 2,967,872 km (0.082 R)
• M7: 3,215,756 km (0.043 R)
• M8: 4,010,869 km (0.053 R)
• M9: 4,280,145 km (0.09 R)
• M10: 4,670,296 km (0.109 R)
• M11: 5,083,784 km (0.103 R)
• M12: 5,603,787 km (0.108 R)
• M13: 6,158,795 km (0.089 R)
• M14: 9,496,922 km (0.092 R)
• M15: 10,727,364 km (0.096 R)
• M16: 11,380,957 km (0.059 R)
• M17: 11,991,616 km (0.114 R)
• M18: 12,911,942 km (0.098 R)
• M19: 14,575,321 km (0.073 R)
• M20: 15,788,410 km (0.038 R)
• M21: 19,636,815 km (0.108 R)
• M22: 20,514,655 km (0.091 R)
• M23: 25,073,052 km (0.09 R)
• M24: 33,313,950 km (0.051 R)
• M25: 35,695,997 km (0.076 R)
• M26: 38,944,066 km (0.078 R)
• M27: 45,176,911 km (0.106 R)
• M28: 48,617,064 km (0.085 R)
• M29: 50,944,358 km (0.101 R)
• M30: 52,970,811 km (0.105 R)
• M31: 58,569,661 km (0.114 R)
• M32: 69,126,932 km (0.069 R)
• M33: 72,065,782 km (0.092 R)
• M34: 74,616,725 km (0.088 R)
• M35: 76,509,288 km (0.066 R)
• M36: 78,433,565 km (0.115 R)
• M37: 83,638,075 km (0.105 R)

Kuiper Belt

Range: 31.1 - 51.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 525 - 13,548 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit