🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.9

Radius: 0.96

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.55 AU - 0.57 AU

Year: 275 Days

Day: 23 Hours

Environment

Temp: -129 °C

Axial Tilt: 36.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.5 AU - 0.7 AU

Year: 305 Days

Day: 19.3 Hours

Environment

Temp: -125 °C

Axial Tilt: 43.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,037,524 km

• M1: 136,433 km (0.113 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.12

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.56 AU - 0.72 AU

Year: 336 Days

Day: 44.8 Hours

Environment

Temp: -122 °C

Axial Tilt: 39.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,037,524 km

• M1: 635,492 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 451.4

Radius: 13.9

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.88 AU - 0.96 AU

Year: 579 Days

Day: 8.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 68,037,524 km

• M1: 172,935 km (0.118 R)
• M2: 675,883 km (0.051 R)
• M3: 1,149,959 km (0.086 R)
• M4: 1,690,456 km (0.097 R)
• M5: 2,299,469 km (0.09 R)
• M6: 3,176,561 km (0.095 R)
• M7: 3,618,025 km (0.116 R)
• M8: 4,155,530 km (0.086 R)
• M9: 4,731,332 km (0.077 R)
• M10: 5,643,729 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.4

Radius: 14.6

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.44 AU - 2.04 AU

Year: 1506 Days

Day: 8.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,037,524 km

• M1: 181,612 km (0.076 R)
• M2: 643,869 km (0.118 R)
• M3: 1,185,114 km (0.09 R)
• M4: 1,741,918 km (0.096 R)
• M5: 2,226,914 km (0.079 R)
• M6: 2,919,552 km (0.11 R)
• M7: 3,768,969 km (0.077 R)
• M8: 5,376,996 km (0.114 R)
• M9: 6,179,290 km (0.107 R)
• M10: 8,372,544 km (0.106 R)
• M11: 9,043,939 km (0.057 R)
• M12: 10,211,551 km (0.116 R)
• M13: 10,686,524 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.9

Radius: 10.6

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 2.84 AU - 3.92 AU

Year: 4076 Days

Day: 9.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,037,524 km

• M1: 138,378 km (0.109 R)
• M2: 549,323 km (0.075 R)
• M3: 1,129,913 km (0.105 R)
• M4: 1,730,249 km (0.1 R)
• M5: 2,269,101 km (0.101 R)
• M6: 2,641,150 km (0.032 R)
• M7: 2,985,076 km (0.035 R)
• M8: 3,927,542 km (0.118 R)
• M9: 4,267,878 km (0.099 R)
• M10: 4,674,335 km (0.072 R)
• M11: 6,986,669 km (0.087 R)
• M12: 7,947,836 km (0.078 R)
• M13: 8,886,263 km (0.067 R)
• M14: 10,131,516 km (0.052 R)
• M15: 11,107,791 km (0.05 R)
• M16: 13,532,175 km (0.099 R)
• M17: 14,919,096 km (0.045 R)
• M18: 17,286,632 km (0.113 R)
• M19: 18,148,017 km (0.092 R)
• M20: 20,395,127 km (0.119 R)
• M21: 21,097,489 km (0.082 R)
• M22: 21,815,857 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 963.6

Radius: 7.5

Gravity: 17.13 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 5.73 AU - 9.07 AU

Year: 13206 Days

Day: 22 Hours

Environment

Temp: -229 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 68,037,524 km

• M1: 93,349 km (0.101 R)
• M2: 416,032 km (0.032 R)
• M3: 771,327 km (0.116 R)
• M4: 1,510,340 km (0.093 R)
• M5: 1,801,607 km (0.046 R)
• M6: 2,268,652 km (0.098 R)
• M7: 3,206,481 km (0.047 R)
• M8: 9,380,983 km (0.035 R)
• M9: 10,314,474 km (0.064 R)
• M10: 15,627,293 km (0.069 R)
• M11: 17,094,698 km (0.117 R)
• M12: 18,906,029 km (0.054 R)
• M13: 25,934,586 km (0.12 R)
• M14: 28,430,327 km (0.034 R)
• M15: 33,020,439 km (0.091 R)
• M16: 36,340,464 km (0.115 R)
• M17: 38,627,816 km (0.086 R)
• M18: 42,163,113 km (0.096 R)
• M19: 44,838,072 km (0.12 R)
• M20: 45,754,359 km (0.09 R)
• M21: 46,062,531 km (0.115 R)
• M22: 46,995,423 km (0.118 R)
• M23: 57,922,052 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 790.4

Radius: 3.5

Gravity: 64.52 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 7.16 AU - 9.48 AU

Year: 15743 Days

Day: 18.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 114.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 68,037,524 km

• M1: 56,847 km (0.07 R)
• M2: 226,192 km (0.1 R)
• M3: 620,831 km (0.091 R)
• M4: 828,323 km (0.097 R)
• M5: 960,119 km (0.092 R)
• M6: 1,457,532 km (0.062 R)
• M7: 1,701,825 km (0.114 R)
• M8: 1,897,799 km (0.047 R)
• M9: 2,645,788 km (0.081 R)
• M10: 3,034,443 km (0.064 R)
• M11: 3,459,750 km (0.063 R)
• M12: 3,629,095 km (0.109 R)
• M13: 4,265,933 km (0.044 R)
• M14: 4,833,358 km (0.045 R)
• M15: 6,157,299 km (0.029 R)
• M16: 6,364,193 km (0.089 R)
• M17: 6,835,875 km (0.102 R)
• M18: 9,938,834 km (0.113 R)
• M19: 10,631,621 km (0.114 R)
• M20: 13,516,916 km (0.053 R)
• M21: 17,207,645 km (0.101 R)
• M22: 18,288,788 km (0.094 R)
• M23: 20,039,233 km (0.114 R)
• M24: 20,862,021 km (0.12 R)
• M25: 21,993,879 km (0.088 R)
• M26: 24,793,005 km (0.1 R)
• M27: 26,277,464 km (0.095 R)
• M28: 27,041,610 km (0.077 R)
• M29: 27,596,319 km (0.066 R)
• M30: 29,306,073 km (0.11 R)
• M31: 29,656,282 km (0.117 R)
• M32: 32,434,464 km (0.083 R)
• M33: 36,581,317 km (0.103 R)
• M34: 38,084,626 km (0.069 R)
• M35: 38,501,555 km (0.105 R)
• M36: 39,628,476 km (0.087 R)
• M37: 39,770,893 km (0.105 R)
• M38: 41,359,772 km (0.098 R)
• M39: 43,594,016 km (0.073 R)
• M40: 44,050,290 km (0.081 R)
• M41: 45,282,527 km (0.059 R)
• M42: 46,221,703 km (0.045 R)
• M43: 47,977,234 km (0.06 R)
• M44: 52,817,174 km (0.109 R)
• M45: 61,908,087 km (0.057 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 310 - 13,918 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit