🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.7

Radius: 11.5

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.67 AU - 0.89 AU

Year: 467 Days

Day: 7.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 66,576,429 km

• M1: 143,016 km (0.076 R)
• M2: 823,237 km (0.118 R)
• M3: 1,957,339 km (0.113 R)
• M4: 2,339,262 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.8

Radius: 10.3

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.8 AU - 1.16 AU

Year: 658 Days

Day: 11.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,576,429 km

• M1: 128,056 km (0.099 R)
• M2: 472,430 km (0.065 R)
• M3: 926,759 km (0.069 R)
• M4: 1,367,624 km (0.063 R)
• M5: 1,727,107 km (0.111 R)
• M6: 2,239,181 km (0.118 R)
• M7: 2,904,143 km (0.104 R)
• M8: 3,747,427 km (0.074 R)
• M9: 4,332,953 km (0.03 R)
• M10: 5,137,340 km (0.112 R)
• M11: 5,966,861 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.1

Radius: 12.5

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.31 AU - 1.93 AU

Year: 1399 Days

Day: 13.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,576,429 km

• M1: 155,432 km (0.08 R)
• M2: 618,438 km (0.091 R)
• M3: 1,233,734 km (0.036 R)
• M4: 2,131,171 km (0.087 R)
• M5: 2,673,613 km (0.116 R)
• M6: 3,164,444 km (0.116 R)
• M7: 5,286,490 km (0.045 R)
• M8: 5,847,631 km (0.095 R)
• M9: 6,847,394 km (0.045 R)
• M10: 8,473,074 km (0.039 R)
• M11: 10,501,920 km (0.093 R)
• M12: 11,189,322 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.2

Radius: 9.9

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.7 AU - 2.02 AU

Year: 1721 Days

Day: 8.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,576,429 km

• M1: 124,166 km (0.054 R)
• M2: 491,878 km (0.104 R)
• M3: 890,556 km (0.12 R)
• M4: 1,239,269 km (0.105 R)
• M5: 1,626,428 km (0.057 R)
• M6: 2,348,986 km (0.086 R)
• M7: 2,726,122 km (0.062 R)
• M8: 3,243,431 km (0.048 R)
• M9: 3,906,748 km (0.095 R)
• M10: 4,788,927 km (0.095 R)
• M11: 6,656,507 km (0.047 R)
• M12: 7,911,483 km (0.106 R)
• M13: 8,317,043 km (0.059 R)
• M14: 9,111,258 km (0.061 R)
• M15: 9,496,772 km (0.119 R)
• M16: 10,654,211 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.4

Radius: 11.3

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 3.26 AU - 4.58 AU

Year: 5264 Days

Day: 9.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 66,576,429 km

• M1: 140,921 km (0.113 R)
• M2: 690,544 km (0.07 R)
• M3: 1,193,941 km (0.083 R)
• M4: 1,605,933 km (0.099 R)
• M5: 2,420,942 km (0.079 R)
• M6: 4,238,257 km (0.102 R)
• M7: 4,832,909 km (0.048 R)
• M8: 5,189,849 km (0.118 R)
• M9: 6,458,589 km (0.05 R)
• M10: 7,993,762 km (0.12 R)
• M11: 8,641,970 km (0.109 R)
• M12: 9,017,012 km (0.076 R)
• M13: 11,863,261 km (0.051 R)
• M14: 12,899,824 km (0.09 R)
• M15: 14,566,494 km (0.12 R)
• M16: 16,600,876 km (0.037 R)
• M17: 17,181,764 km (0.12 R)
• M18: 17,656,289 km (0.101 R)
• M19: 18,631,368 km (0.08 R)
• M20: 20,226,380 km (0.084 R)
• M21: 22,118,793 km (0.065 R)
• M22: 24,947,539 km (0.091 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 504.2

Radius: 6.7

Gravity: 11.23 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 5.15 AU - 8.43 AU

Year: 12000 Days

Day: 16 Hours

Environment

Temp: -236 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 66,576,429 km

• M1: 83,326 km (0.046 R)
• M2: 624,422 km (0.112 R)
• M3: 845,677 km (0.037 R)
• M4: 1,177,485 km (0.101 R)
• M5: 1,805,048 km (0.076 R)
• M6: 2,017,926 km (0.114 R)
• M7: 2,321,909 km (0.083 R)
• M8: 2,697,549 km (0.082 R)
• M9: 3,570,452 km (0.039 R)
• M10: 3,855,137 km (0.118 R)
• M11: 4,588,765 km (0.117 R)
• M12: 5,894,007 km (0.104 R)
• M13: 6,943,585 km (0.056 R)
• M14: 8,112,393 km (0.1 R)
• M15: 9,214,182 km (0.078 R)
• M16: 11,487,620 km (0.114 R)
• M17: 12,167,244 km (0.082 R)
• M18: 13,114,497 km (0.104 R)
• M19: 16,180,954 km (0.08 R)
• M20: 20,666,497 km (0.09 R)
• M21: 26,204,610 km (0.07 R)
• M22: 26,495,279 km (0.083 R)
• M23: 29,104,565 km (0.081 R)
• M24: 30,685,216 km (0.112 R)
• M25: 31,770,249 km (0.082 R)
• M26: 32,768,516 km (0.078 R)
• M27: 36,487,369 km (0.05 R)
• M28: 46,568,321 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 616.3

Radius: 4.3

Gravity: 33.33 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 6.89 AU - 8.19 AU

Year: 14043 Days

Day: 24.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 66,576,429 km

• M1: 53,406 km (0.052 R)
• M2: 560,244 km (0.118 R)
• M3: 1,049,130 km (0.085 R)
• M4: 1,935,348 km (0.086 R)
• M5: 2,099,307 km (0.083 R)
• M6: 2,560,517 km (0.03 R)
• M7: 2,803,614 km (0.118 R)
• M8: 3,184,639 km (0.063 R)
• M9: 3,708,382 km (0.117 R)
• M10: 4,348,661 km (0.111 R)
• M11: 4,891,551 km (0.105 R)
• M12: 5,336,306 km (0.111 R)
• M13: 6,345,493 km (0.102 R)
• M14: 7,000,133 km (0.093 R)
• M15: 7,519,836 km (0.081 R)
• M16: 8,635,687 km (0.116 R)
• M17: 10,789,896 km (0.098 R)
• M18: 12,575,795 km (0.077 R)
• M19: 13,604,580 km (0.109 R)
• M20: 17,804,091 km (0.038 R)
• M21: 19,098,412 km (0.045 R)
• M22: 23,261,272 km (0.101 R)
• M23: 27,565,053 km (0.105 R)
• M24: 30,863,238 km (0.088 R)
• M25: 31,668,822 km (0.071 R)
• M26: 34,537,660 km (0.041 R)
• M27: 39,695,945 km (0.108 R)
• M28: 44,903,297 km (0.093 R)
• M29: 49,758,795 km (0.086 R)
• M30: 53,952,622 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 391.9

Radius: 4

Gravity: 24.49 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 7.59 AU - 12.53 AU

Year: 21642 Days

Day: 17.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,576,429 km

• M1: 120,277 km (0.074 R)
• M2: 477,816 km (0.103 R)
• M3: 639,830 km (0.096 R)
• M4: 1,689,110 km (0.046 R)
• M5: 2,250,251 km (0.115 R)
• M6: 2,550,793 km (0.112 R)
• M7: 2,710,863 km (0.059 R)
• M8: 2,976,100 km (0.107 R)
• M9: 7,781,034 km (0.093 R)
• M10: 11,178,551 km (0.069 R)
• M11: 14,854,919 km (0.059 R)
• M12: 25,612,053 km (0.107 R)
• M13: 26,250,088 km (0.114 R)
• M14: 30,303,143 km (0.072 R)
• M15: 35,013,382 km (0.104 R)
• M16: 38,780,406 km (0.051 R)
• M17: 39,059,406 km (0.071 R)
• M18: 41,194,466 km (0.06 R)
• M19: 41,339,576 km (0.118 R)
• M20: 44,312,535 km (0.081 R)
• M21: 49,524,076 km (0.09 R)
• M22: 58,541,237 km (0.066 R)
• M23: 59,832,716 km (0.099 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 435 - 15,466 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit