🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.18

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.45 AU - 0.59 AU

Year: 139 Days

Day: 27.3 Hours

Environment

Temp: 231 °C

Axial Tilt: 70.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.88

Radius: 0.95

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.87 AU - 2.37 AU

Year: 1145 Days

Day: 14.8 Hours

Environment

Temp: -84 °C

Axial Tilt: 28 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.32 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263.7

Radius: 11.6

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 4.92 AU - 8.12 AU

Year: 6174 Days

Day: 5 Hours

Environment

Temp: -149 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,336,077 km

• M1: 147,803 km (0.095 R)
• M2: 556,205 km (0.111 R)
• M3: 1,670,111 km (0.037 R)
• M4: 2,156,902 km (0.075 R)
• M5: 3,286,516 km (0.113 R)
• M6: 3,908,095 km (0.087 R)
• M7: 5,439,528 km (0.114 R)
• M8: 9,684,368 km (0.101 R)
• M9: 11,179,449 km (0.087 R)
• M10: 12,211,973 km (0.077 R)
• M11: 17,628,164 km (0.102 R)
• M12: 20,169,533 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 9.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.9

Radius: 13.7

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 9.19 AU - 10.13 AU

Year: 11134 Days

Day: 12.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,336,077 km

• M1: 170,392 km (0.104 R)
• M2: 619,335 km (0.063 R)
• M3: 2,620,805 km (0.095 R)
• M4: 3,467,529 km (0.098 R)
• M5: 4,320,536 km (0.093 R)
• M6: 5,309,228 km (0.081 R)
• M7: 6,262,017 km (0.097 R)
• M8: 7,285,715 km (0.104 R)
• M9: 9,520,857 km (0.1 R)
• M10: 10,873,671 km (0.059 R)
• M11: 14,652,363 km (0.111 R)
• M12: 19,152,716 km (0.118 R)
• M13: 19,930,625 km (0.078 R)
• M14: 20,810,410 km (0.08 R)
• M15: 24,773,108 km (0.029 R)
• M16: 27,028,296 km (0.063 R)
• M17: 42,578,845 km (0.051 R)
• M18: 43,904,133 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 10.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.6

Radius: 13.8

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 8.24 AU - 11.94 AU

Year: 11886 Days

Day: 8.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,336,077 km

• M1: 171,738 km (0.104 R)
• M2: 769,980 km (0.119 R)
• M3: 1,679,087 km (0.113 R)
• M4: 2,309,342 km (0.108 R)
• M5: 3,446,735 km (0.047 R)
• M6: 5,137,640 km (0.109 R)
• M7: 5,635,950 km (0.082 R)
• M8: 6,409,072 km (0.105 R)
• M9: 7,483,633 km (0.119 R)
• M10: 8,848,714 km (0.114 R)
• M11: 16,729,081 km (0.12 R)
• M12: 17,480,511 km (0.089 R)
• M13: 20,250,914 km (0.086 R)
• M14: 22,225,905 km (0.05 R)
• M15: 22,801,109 km (0.083 R)
• M16: 23,386,336 km (0.095 R)
• M17: 32,668,435 km (0.114 R)
• M18: 33,519,796 km (0.028 R)
• M19: 34,168,004 km (0.114 R)
• M20: 36,844,908 km (0.049 R)
• M21: 40,020,273 km (0.111 R)
• M22: 40,749,862 km (0.117 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 437.5

Radius: 7.7

Gravity: 7.38 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 9.57 AU - 15.41 AU

Year: 16370 Days

Day: 20.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 57,336,077 km

• M1: 100,380 km (0.093 R)
• M2: 721,959 km (0.11 R)
• M3: 2,833,683 km (0.06 R)
• M4: 3,090,243 km (0.11 R)
• M5: 4,040,788 km (0.105 R)
• M6: 4,489,881 km (0.114 R)
• M7: 4,971,736 km (0.106 R)
• M8: 5,888,172 km (0.09 R)
• M9: 6,871,329 km (0.072 R)
• M10: 9,881,239 km (0.1 R)
• M11: 10,256,131 km (0.092 R)
• M12: 10,864,545 km (0.06 R)
• M13: 11,148,931 km (0.066 R)
• M14: 12,153,181 km (0.049 R)
• M15: 12,646,106 km (0.078 R)
• M16: 13,088,168 km (0.066 R)
• M17: 14,137,597 km (0.108 R)
• M18: 15,815,337 km (0.109 R)
• M19: 18,818,066 km (0.106 R)
• M20: 19,898,013 km (0.063 R)
• M21: 23,103,297 km (0.071 R)
• M22: 23,669,076 km (0.097 R)
• M23: 25,222,949 km (0.105 R)
• M24: 28,317,531 km (0.068 R)
• M25: 29,183,553 km (0.113 R)
• M26: 32,120,308 km (0.082 R)
• M27: 33,300,486 km (0.057 R)
• M28: 35,872,522 km (0.063 R)
• M29: 37,271,113 km (0.086 R)
• M30: 38,573,961 km (0.067 R)
• M31: 40,994,903 km (0.1 R)
• M32: 41,684,998 km (0.046 R)
• M33: 43,088,376 km (0.111 R)
• M34: 43,372,761 km (0.108 R)
• M35: 47,034,319 km (0.102 R)
• M36: 48,554,831 km (0.094 R)
• M37: 54,134,981 km (0.108 R)
• M38: 56,822,507 km (0.112 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 552 - 13,145 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit