🌌 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: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.44 AU - 0.66 AU

Year: 263 Days

Day: 18.1 Hours

Environment

Temp: -128 °C

Axial Tilt: 44.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.3

Radius: 8.7

Gravity: 11.33 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.9 AU - 1.14 AU

Year: 665 Days

Day: 5.5 Hours

Environment

Temp: -162 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,497,714 km

• M1: 108,159 km (0.104 R)
• M2: 400,922 km (0.106 R)
• M3: 840,890 km (0.08 R)
• M4: 1,199,177 km (0.037 R)
• M5: 2,017,776 km (0.076 R)
• M6: 2,603,601 km (0.066 R)
• M7: 3,079,323 km (0.104 R)
• M8: 4,005,034 km (0.095 R)
• M9: 5,507,745 km (0.093 R)
• M10: 6,110,026 km (0.114 R)
• M11: 7,195,658 km (0.106 R)
• M12: 7,915,373 km (0.035 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.8

Radius: 10.3

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.12 AU - 1.2 AU

Year: 807 Days

Day: 9.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 55,497,714 km

• M1: 128,205 km (0.113 R)
• M2: 622,028 km (0.084 R)
• M3: 1,098,198 km (0.083 R)
• M4: 1,458,729 km (0.103 R)
• M5: 2,176,649 km (0.107 R)
• M6: 2,544,361 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 792.8

Radius: 10.4

Gravity: 7.33 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 2.44 AU - 3.52 AU

Year: 3322 Days

Day: 9 Hours

Environment

Temp: -206 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,497,714 km

• M1: 139,126 km (0.05 R)
• M2: 536,907 km (0.093 R)
• M3: 1,277,715 km (0.118 R)
• M4: 1,946,418 km (0.106 R)
• M5: 2,481,380 km (0.078 R)
• M6: 4,960,366 km (0.069 R)
• M7: 5,525,248 km (0.115 R)
• M8: 6,189,761 km (0.118 R)
• M9: 6,692,111 km (0.057 R)
• M10: 7,382,356 km (0.059 R)
• M11: 8,153,982 km (0.104 R)
• M12: 8,722,005 km (0.07 R)
• M13: 9,700,973 km (0.11 R)
• M14: 14,409,716 km (0.116 R)
• M15: 16,770,370 km (0.089 R)
• M16: 18,641,540 km (0.1 R)
• M17: 20,647,947 km (0.119 R)
• M18: 20,974,070 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.1

Radius: 11.9

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 4.39 AU - 4.67 AU

Year: 6225 Days

Day: 11.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 55,497,714 km

• M1: 150,196 km (0.105 R)
• M2: 962,812 km (0.032 R)
• M3: 1,368,970 km (0.068 R)
• M4: 1,850,226 km (0.109 R)
• M5: 2,597,767 km (0.115 R)
• M6: 3,625,056 km (0.115 R)
• M7: 4,231,974 km (0.073 R)
• M8: 5,154,843 km (0.068 R)
• M9: 6,368,830 km (0.095 R)
• M10: 7,470,469 km (0.105 R)
• M11: 7,877,076 km (0.114 R)
• M12: 8,614,593 km (0.101 R)
• M13: 10,137,799 km (0.062 R)
• M14: 11,489,864 km (0.095 R)
• M15: 13,385,120 km (0.097 R)
• M16: 14,836,070 km (0.109 R)
• M17: 16,513,062 km (0.102 R)
• M18: 19,816,781 km (0.067 R)
• M19: 20,526,773 km (0.086 R)
• M20: 21,401,023 km (0.079 R)
• M21: 22,073,016 km (0.113 R)
• M22: 24,820,381 km (0.113 R)
• M23: 27,003,612 km (0.11 R)
• M24: 27,700,290 km (0.112 R)
• M25: 30,233,730 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508

Radius: 8.8

Gravity: 6.56 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 4.28 AU - 5.76 AU

Year: 7262 Days

Day: 14.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 55,497,714 km

• M1: 109,655 km (0.086 R)
• M2: 523,593 km (0.098 R)
• M3: 1,024,895 km (0.063 R)
• M4: 1,470,846 km (0.087 R)
• M5: 2,553,336 km (0.111 R)
• M6: 3,315,089 km (0.108 R)
• M7: 3,998,302 km (0.082 R)
• M8: 4,296,600 km (0.101 R)
• M9: 4,938,375 km (0.052 R)
• M10: 5,400,782 km (0.119 R)
• M11: 5,735,134 km (0.095 R)
• M12: 6,378,704 km (0.116 R)
• M13: 8,041,185 km (0.112 R)
• M14: 8,888,956 km (0.113 R)
• M15: 9,312,916 km (0.066 R)
• M16: 10,064,795 km (0.031 R)
• M17: 11,840,372 km (0.117 R)
• M18: 14,212,546 km (0.091 R)
• M19: 15,815,487 km (0.064 R)
• M20: 16,565,271 km (0.043 R)
• M21: 19,236,192 km (0.078 R)
• M22: 19,874,376 km (0.097 R)
• M23: 20,747,429 km (0.104 R)
• M24: 23,761,228 km (0.117 R)
• M25: 26,011,031 km (0.07 R)
• M26: 27,143,337 km (0.042 R)
• M27: 30,545,641 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 614

Radius: 6.8

Gravity: 13.28 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 6.38 AU - 6.88 AU

Year: 11023 Days

Day: 16.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 55,497,714 km

• M1: 84,822 km (0.101 R)
• M2: 534,064 km (0.047 R)
• M3: 891,304 km (0.087 R)
• M4: 1,165,218 km (0.099 R)
• M5: 1,886,130 km (0.085 R)
• M6: 2,324,601 km (0.079 R)
• M7: 2,764,718 km (0.114 R)
• M8: 4,511,124 km (0.097 R)
• M9: 4,907,857 km (0.096 R)
• M10: 5,701,025 km (0.092 R)
• M11: 6,128,277 km (0.116 R)
• M12: 7,087,050 km (0.114 R)
• M13: 10,042,056 km (0.11 R)
• M14: 11,424,789 km (0.103 R)
• M15: 12,809,467 km (0.11 R)
• M16: 13,295,062 km (0.109 R)
• M17: 17,188,795 km (0.107 R)
• M18: 20,277,692 km (0.094 R)
• M19: 22,472,592 km (0.113 R)
• M20: 23,357,464 km (0.079 R)
• M21: 25,958,223 km (0.085 R)
• M22: 27,527,953 km (0.097 R)
• M23: 30,105,524 km (0.104 R)
• M24: 32,839,725 km (0.107 R)
• M25: 37,061,376 km (0.109 R)
• M26: 38,670,601 km (0.07 R)
• M27: 40,196,948 km (0.079 R)
• M28: 41,895,332 km (0.108 R)
• M29: 42,427,303 km (0.091 R)
• M30: 46,420,219 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 313

Radius: 4.9

Gravity: 13.04 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 7.85 AU - 10.83 AU

Year: 18430 Days

Day: 19.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 55,497,714 km

• M1: 61,036 km (0.096 R)
• M2: 219,610 km (0.109 R)
• M3: 991,086 km (0.098 R)
• M4: 1,344,286 km (0.068 R)
• M5: 2,107,984 km (0.061 R)
• M6: 2,337,317 km (0.089 R)
• M7: 3,224,582 km (0.108 R)
• M8: 3,555,941 km (0.075 R)
• M9: 3,853,791 km (0.082 R)
• M10: 4,256,807 km (0.098 R)
• M11: 5,386,870 km (0.071 R)
• M12: 7,414,669 km (0.039 R)
• M13: 7,766,224 km (0.063 R)
• M14: 8,128,700 km (0.082 R)
• M15: 9,848,776 km (0.108 R)
• M16: 12,276,300 km (0.078 R)
• M17: 13,660,380 km (0.032 R)
• M18: 14,389,969 km (0.029 R)
• M19: 18,351,769 km (0.113 R)
• M20: 19,568,897 km (0.083 R)
• M21: 20,239,545 km (0.045 R)
• M22: 20,495,058 km (0.099 R)
• M23: 21,538,353 km (0.076 R)
• M24: 22,616,505 km (0.091 R)
• M25: 24,109,342 km (0.063 R)
• M26: 24,492,612 km (0.108 R)
• M27: 25,766,139 km (0.109 R)
• M28: 26,673,300 km (0.093 R)
• M29: 33,271,913 km (0.114 R)
• M30: 38,487,194 km (0.115 R)
• M31: 44,364,894 km (0.095 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 395 - 15,734 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit