🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.23

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.6 AU - 0.7 AU

Year: 185 Days

Day: 38 Hours

Environment

Temp: 166 °C

Axial Tilt: 28.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.22

Radius: 1.08

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.67 AU - 0.69 AU

Year: 198 Days

Day: 29.5 Hours

Environment

Temp: 137 °C

Axial Tilt: 41.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.61

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.32 AU - 1.4 AU

Year: 560 Days

Day: 16.9 Hours

Environment

Temp: 10 °C

Axial Tilt: 18.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.54

Radius: 0.78

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 2.08 AU - 2.62 AU

Year: 1272 Days

Day: 40 Hours

Environment

Temp: -78 °C

Axial Tilt: 34.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.23

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 2.76 AU - 4.18 AU

Year: 2282 Days

Day: 23.7 Hours

Environment

Temp: -104 °C

Axial Tilt: 43.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,431,501 km

• M1: 421,567 km (0.1 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 3.95 AU - 5.05 AU

Year: 3371 Days

Day: 40.7 Hours

Environment

Temp: -129 °C

Axial Tilt: 41.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 6.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.3

Radius: 10

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 5.82 AU - 7.68 AU

Year: 6192 Days

Day: 9.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 65,431,501 km

• M1: 124,316 km (0.077 R)
• M2: 449,691 km (0.105 R)
• M3: 776,413 km (0.12 R)
• M4: 1,522,906 km (0.114 R)
• M5: 2,035,129 km (0.099 R)
• M6: 2,626,041 km (0.041 R)
• M7: 3,506,424 km (0.093 R)
• M8: 4,428,396 km (0.102 R)
• M9: 4,844,577 km (0.047 R)
• M10: 5,671,106 km (0.074 R)
• M11: 6,192,604 km (0.075 R)
• M12: 9,452,341 km (0.047 R)
• M13: 9,978,776 km (0.075 R)
• M14: 13,608,170 km (0.082 R)
• M15: 14,703,676 km (0.095 R)
• M16: 15,800,826 km (0.059 R)
• M17: 16,369,448 km (0.114 R)
• M18: 16,951,683 km (0.116 R)
• M19: 17,367,415 km (0.056 R)
• M20: 18,655,453 km (0.087 R)
• M21: 19,548,851 km (0.106 R)
• M22: 20,204,389 km (0.03 R)
• M23: 20,604,564 km (0.079 R)
• M24: 21,907,112 km (0.106 R)
• M25: 23,482,827 km (0.05 R)
• M26: 26,380,537 km (0.12 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902.9

Radius: 14.6

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 6.72 AU - 7.88 AU

Year: 6964 Days

Day: 12.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 65,431,501 km

• M1: 181,612 km (0.118 R)
• M2: 715,078 km (0.083 R)
• M3: 1,418,188 km (0.073 R)
• M4: 2,264,014 km (0.114 R)
• M5: 3,404,848 km (0.1 R)
• M6: 5,047,881 km (0.117 R)
• M7: 7,440,101 km (0.065 R)
• M8: 8,202,750 km (0.096 R)
• M9: 8,797,851 km (0.039 R)
• M10: 10,218,432 km (0.099 R)
• M11: 13,453,337 km (0.107 R)
• M12: 15,335,128 km (0.117 R)
• M13: 15,913,025 km (0.091 R)
• M14: 16,372,440 km (0.074 R)
• M15: 17,386,863 km (0.066 R)
• M16: 19,318,022 km (0.084 R)
• M17: 21,072,954 km (0.072 R)
• M18: 22,931,858 km (0.12 R)
• M19: 23,434,357 km (0.051 R)
• M20: 25,697,174 km (0.096 R)
• M21: 26,605,084 km (0.098 R)
• M22: 28,102,110 km (0.037 R)
• M23: 30,351,762 km (0.064 R)
• M24: 31,675,105 km (0.119 R)
• M25: 33,785,632 km (0.091 R)
• M26: 34,436,831 km (0.03 R)
• M27: 35,652,165 km (0.095 R)
• M28: 38,285,685 km (0.092 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 254.6

Radius: 7.5

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 14.71 AU - 20.57 AU

Year: 26161 Days

Day: 15 Hours

Environment

Temp: -191 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 65,431,501 km

• M1: 94,247 km (0.1 R)
• M2: 341,382 km (0.099 R)
• M3: 1,077,853 km (0.084 R)
• M4: 1,323,044 km (0.116 R)
• M5: 1,589,926 km (0.089 R)
• M6: 2,058,616 km (0.091 R)
• M7: 3,244,479 km (0.094 R)
• M8: 3,706,886 km (0.099 R)
• M9: 4,150,743 km (0.099 R)
• M10: 5,812,176 km (0.113 R)
• M11: 6,920,248 km (0.106 R)
• M12: 8,114,488 km (0.052 R)
• M13: 9,174,688 km (0.118 R)
• M14: 9,765,749 km (0.099 R)
• M15: 10,381,643 km (0.098 R)
• M16: 10,787,054 km (0.04 R)
• M17: 13,107,167 km (0.086 R)
• M18: 15,070,190 km (0.1 R)
• M19: 15,740,688 km (0.076 R)
• M20: 16,665,352 km (0.079 R)
• M21: 18,622,691 km (0.063 R)
• M22: 19,307,849 km (0.101 R)
• M23: 19,921,051 km (0.075 R)
• M24: 22,793,629 km (0.088 R)
• M25: 24,076,431 km (0.088 R)
• M26: 26,142,826 km (0.102 R)
• M27: 27,768,207 km (0.116 R)
• M28: 32,675,915 km (0.104 R)
• M29: 33,296,148 km (0.038 R)
• M30: 34,945,464 km (0.097 R)
• M31: 37,723,497 km (0.117 R)
• M32: 38,681,372 km (0.089 R)
• M33: 42,527,982 km (0.063 R)
• M34: 44,619,510 km (0.11 R)
• M35: 45,229,420 km (0.117 R)
• M36: 53,844,163 km (0.055 R)

Kuiper Belt

Range: 31.1 - 53.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 527 - 12,873 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit