🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.6

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.5 AU - 0.72 AU

Year: 308 Days

Day: 12.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 33.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,245,908 km

• M1: 39,195 km (0.084 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.61 AU - 0.63 AU

Year: 315 Days

Day: 33.8 Hours

Environment

Temp: -130 °C

Axial Tilt: 7.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.6

Radius: 8.4

Gravity: 13.16 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.68 AU - 0.84 AU

Year: 428 Days

Day: 14.1 Hours

Environment

Temp: -144 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 56,245,908 km

• M1: 104,569 km (0.08 R)
• M2: 382,971 km (0.071 R)
• M3: 771,626 km (0.115 R)
• M4: 1,038,957 km (0.078 R)
• M5: 1,429,108 km (0.119 R)
• M6: 1,898,547 km (0.117 R)
• M7: 2,165,579 km (0.114 R)
• M8: 2,517,283 km (0.118 R)
• M9: 2,819,471 km (0.083 R)
• M10: 3,410,233 km (0.117 R)
• M11: 3,821,328 km (0.099 R)
• M12: 4,108,855 km (0.094 R)
• M13: 4,743,150 km (0.086 R)
• M14: 5,561,002 km (0.096 R)
• M15: 6,205,918 km (0.069 R)
• M16: 6,488,957 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.2

Radius: 10.5

Gravity: 7.28 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.04 AU - 1.2 AU

Year: 765 Days

Day: 14.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,245,908 km

• M1: 130,599 km (0.063 R)
• M2: 663,018 km (0.091 R)
• M3: 1,010,085 km (0.076 R)
• M4: 1,559,857 km (0.088 R)
• M5: 2,461,783 km (0.038 R)
• M6: 2,830,392 km (0.112 R)
• M7: 3,302,971 km (0.08 R)
• M8: 3,694,918 km (0.083 R)
• M9: 4,212,826 km (0.106 R)
• M10: 5,489,195 km (0.113 R)
• M11: 6,021,464 km (0.094 R)
• M12: 6,437,645 km (0.095 R)
• M13: 6,850,685 km (0.092 R)
• M14: 7,515,348 km (0.091 R)
• M15: 8,072,600 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268

Radius: 8.5

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 4.51 AU - 7.27 AU

Year: 9230 Days

Day: 12.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 56,245,908 km

• M1: 105,766 km (0.111 R)
• M2: 598,840 km (0.099 R)
• M3: 896,989 km (0.082 R)
• M4: 1,384,977 km (0.116 R)
• M5: 1,756,728 km (0.072 R)
• M6: 2,210,009 km (0.071 R)
• M7: 3,633,732 km (0.076 R)
• M8: 4,474,323 km (0.118 R)
• M9: 7,154,518 km (0.117 R)
• M10: 8,912,592 km (0.117 R)
• M11: 9,980,272 km (0.079 R)
• M12: 11,664,445 km (0.059 R)
• M13: 12,782,240 km (0.117 R)
• M14: 13,259,607 km (0.111 R)
• M15: 13,529,781 km (0.117 R)
• M16: 18,707,363 km (0.081 R)
• M17: 19,461,337 km (0.099 R)
• M18: 21,030,020 km (0.047 R)
• M19: 23,380,950 km (0.101 R)
• M20: 26,495,129 km (0.079 R)
• M21: 32,640,610 km (0.116 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 343.9

Radius: 7.7

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 5.41 AU - 8.93 AU

Year: 12396 Days

Day: 15.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 56,245,908 km

• M1: 95,892 km (0.068 R)
• M2: 484,847 km (0.079 R)
• M3: 930,648 km (0.071 R)
• M4: 1,657,844 km (0.107 R)
• M5: 2,924,339 km (0.117 R)
• M6: 3,731,420 km (0.087 R)
• M7: 5,131,207 km (0.093 R)
• M8: 5,711,647 km (0.105 R)
• M9: 8,788,127 km (0.107 R)
• M10: 11,976,506 km (0.07 R)
• M11: 13,289,078 km (0.056 R)
• M12: 14,319,059 km (0.042 R)
• M13: 15,663,645 km (0.102 R)
• M14: 18,380,642 km (0.113 R)
• M15: 21,396,684 km (0.039 R)
• M16: 21,641,426 km (0.093 R)
• M17: 24,637,872 km (0.081 R)
• M18: 37,943,555 km (0.103 R)
• M19: 38,542,994 km (0.063 R)
• M20: 43,177,087 km (0.049 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 288.2

Radius: 4

Gravity: 18.01 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 8.42 AU - 11.04 AU

Year: 19597 Days

Day: 18.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 56,245,908 km

• M1: 50,714 km (0.111 R)
• M2: 210,634 km (0.084 R)
• M3: 388,506 km (0.105 R)
• M4: 1,026,092 km (0.081 R)
• M5: 1,323,492 km (0.039 R)
• M6: 1,823,000 km (0.09 R)
• M7: 2,521,622 km (0.072 R)
• M8: 2,715,501 km (0.084 R)
• M9: 2,873,177 km (0.108 R)
• M10: 3,810,557 km (0.112 R)
• M11: 5,102,634 km (0.091 R)
• M12: 5,308,331 km (0.1 R)
• M13: 5,699,978 km (0.106 R)
• M14: 6,540,419 km (0.042 R)
• M15: 7,287,062 km (0.069 R)
• M16: 7,460,446 km (0.107 R)
• M17: 8,655,134 km (0.065 R)
• M18: 8,800,693 km (0.071 R)
• M19: 9,813,321 km (0.067 R)
• M20: 10,957,745 km (0.095 R)
• M21: 16,501,393 km (0.083 R)
• M22: 16,650,542 km (0.113 R)
• M23: 18,033,275 km (0.101 R)
• M24: 19,825,009 km (0.119 R)
• M25: 20,162,951 km (0.077 R)
• M26: 23,474,150 km (0.106 R)
• M27: 24,331,046 km (0.109 R)
• M28: 27,130,172 km (0.071 R)
• M29: 27,442,233 km (0.056 R)
• M30: 28,822,124 km (0.068 R)
• M31: 30,136,491 km (0.096 R)
• M32: 32,414,867 km (0.087 R)
• M33: 36,927,636 km (0.098 R)
• M34: 41,703,398 km (0.051 R)
• M35: 49,458,402 km (0.105 R)
• M36: 49,924,101 km (0.118 R)
• M37: 52,296,124 km (0.047 R)
• M38: 53,103,205 km (0.105 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 166 - 14,811 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit