🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.05

Radius: 1.02

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.6 AU - 1 AU

Year: 271 Days

Day: 14.6 Hours

Environment

Temp: 157 °C

Axial Tilt: 20 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 68,193,757 km

• M1: 312,360 km (0.101 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.51

Radius: 1.45

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.84 AU - 0.86 AU

Year: 297 Days

Day: 43.7 Hours

Environment

Temp: 28 °C

Axial Tilt: 27.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 68,193,757 km

• M1: 39,494 km (0.115 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.75

Radius: 1.25

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.86 AU - 1.28 AU

Year: 419 Days

Day: 33.9 Hours

Environment

Temp: -3 °C

Axial Tilt: 138 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.29 AU - 2.13 AU

Year: 847 Days

Day: 30.8 Hours

Environment

Temp: -56 °C

Axial Tilt: 25.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,193,757 km

• M1: 675,584 km (0.118 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 2.47 AU - 3.29 AU

Year: 1851 Days

Day: 18.7 Hours

Environment

Temp: -106 °C

Axial Tilt: 11.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.77

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 3.33 AU - 4.13 AU

Year: 2728 Days

Day: 22.2 Hours

Environment

Temp: -130 °C

Axial Tilt: 21.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.1

Radius: 11.9

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 5.47 AU - 6.09 AU

Year: 5263 Days

Day: 8 Hours

Environment

Temp: -158 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 68,193,757 km

• M1: 147,952 km (0.107 R)
• M2: 566,826 km (0.093 R)
• M3: 952,041 km (0.092 R)
• M4: 1,443,021 km (0.091 R)
• M5: 1,813,874 km (0.058 R)
• M6: 2,219,284 km (0.11 R)
• M7: 3,007,964 km (0.11 R)
• M8: 3,498,945 km (0.093 R)
• M9: 4,568,121 km (0.036 R)
• M10: 5,553,971 km (0.042 R)
• M11: 6,676,553 km (0.116 R)
• M12: 8,201,703 km (0.093 R)
• M13: 9,205,804 km (0.095 R)
• M14: 10,551,736 km (0.119 R)
• M15: 12,267,025 km (0.095 R)
• M16: 14,000,865 km (0.057 R)
• M17: 15,489,663 km (0.12 R)
• M18: 17,203,755 km (0.074 R)
• M19: 18,393,357 km (0.1 R)
• M20: 19,436,952 km (0.087 R)
• M21: 19,838,323 km (0.105 R)
• M22: 21,005,635 km (0.064 R)
• M23: 22,583,743 km (0.029 R)
• M24: 24,471,369 km (0.097 R)
• M25: 25,894,045 km (0.071 R)
• M26: 26,625,728 km (0.045 R)
• M27: 27,038,170 km (0.092 R)
• M28: 28,558,234 km (0.098 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.8

Radius: 10.7

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 6.8 AU - 7.96 AU

Year: 7593 Days

Day: 12.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 68,193,757 km

• M1: 133,142 km (0.105 R)
• M2: 721,511 km (0.119 R)
• M3: 2,039,617 km (0.117 R)
• M4: 4,901,873 km (0.067 R)
• M5: 6,149,968 km (0.111 R)
• M6: 10,248,950 km (0.101 R)
• M7: 12,622,620 km (0.066 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 761

Radius: 3.4

Gravity: 65.83 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 11.95 AU - 12.41 AU

Year: 16100 Days

Day: 19.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 68,193,757 km

• M1: 42,336 km (0.099 R)
• M2: 202,556 km (0.117 R)
• M3: 389,104 km (0.101 R)
• M4: 524,640 km (0.075 R)
• M5: 871,408 km (0.115 R)
• M6: 1,081,742 km (0.097 R)
• M7: 1,721,722 km (0.047 R)
• M8: 2,072,529 km (0.071 R)
• M9: 2,816,629 km (0.084 R)
• M10: 3,065,560 km (0.076 R)
• M11: 3,466,482 km (0.113 R)
• M12: 4,984,003 km (0.105 R)
• M13: 5,498,619 km (0.103 R)
• M14: 7,392,379 km (0.117 R)
• M15: 7,626,499 km (0.102 R)
• M16: 8,976,770 km (0.058 R)
• M17: 10,188,513 km (0.11 R)
• M18: 11,074,581 km (0.11 R)
• M19: 14,689,464 km (0.1 R)
• M20: 17,002,396 km (0.096 R)
• M21: 19,281,520 km (0.061 R)
• M22: 20,539,788 km (0.117 R)
• M23: 22,236,527 km (0.083 R)
• M24: 25,799,050 km (0.063 R)
• M25: 26,120,985 km (0.072 R)
• M26: 27,547,102 km (0.095 R)
• M27: 32,758,343 km (0.103 R)
• M28: 33,389,048 km (0.119 R)
• M29: 34,156,635 km (0.075 R)
• M30: 35,198,135 km (0.114 R)
• M31: 38,589,369 km (0.099 R)
• M32: 41,015,697 km (0.12 R)
• M33: 42,938,329 km (0.112 R)
• M34: 44,150,969 km (0.041 R)
• M35: 44,611,431 km (0.051 R)
• M36: 49,394,225 km (0.054 R)
• M37: 50,223,147 km (0.116 R)
• M38: 51,568,780 km (0.051 R)
• M39: 52,079,507 km (0.115 R)
• M40: 53,631,884 km (0.084 R)
• M41: 60,715,941 km (0.088 R)
• M42: 61,285,460 km (0.073 R)
• M43: 64,776,776 km (0.085 R)
• M44: 65,371,278 km (0.091 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 478 - 12,919 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit