🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.8

Radius: 13.5

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.5 AU - 0.82 AU

Year: 377 Days

Day: 13.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,472,791 km

• M1: 167,998 km (0.108 R)
• M2: 599,439 km (0.073 R)
• M3: 1,043,296 km (0.096 R)
• M4: 1,465,012 km (0.088 R)
• M5: 2,810,645 km (0.075 R)
• M6: 3,412,627 km (0.066 R)
• M7: 3,873,388 km (0.039 R)
• M8: 4,429,593 km (0.092 R)
• M9: 4,921,471 km (0.046 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.3

Radius: 12.8

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.97 AU - 1.13 AU

Year: 756 Days

Day: 12 Hours

Environment

Temp: -178 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,472,791 km

• M1: 159,172 km (0.043 R)
• M2: 862,581 km (0.082 R)
• M3: 1,540,708 km (0.114 R)
• M4: 2,054,278 km (0.103 R)
• M5: 2,566,800 km (0.107 R)
• M6: 3,365,055 km (0.084 R)
• M7: 4,990,585 km (0.07 R)
• M8: 5,550,380 km (0.058 R)
• M9: 6,752,249 km (0.058 R)
• M10: 7,438,455 km (0.037 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.8

Radius: 14.4

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.09 AU - 1.53 AU

Year: 1054 Days

Day: 10.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,472,791 km

• M1: 179,069 km (0.096 R)
• M2: 627,862 km (0.092 R)
• M3: 1,263,055 km (0.096 R)
• M4: 1,843,644 km (0.084 R)
• M5: 2,430,068 km (0.077 R)
• M6: 3,153,673 km (0.064 R)
• M7: 3,663,353 km (0.067 R)
• M8: 4,584,277 km (0.105 R)
• M9: 6,025,503 km (0.09 R)
• M10: 7,072,090 km (0.109 R)
• M11: 8,055,397 km (0.098 R)
• M12: 8,580,335 km (0.098 R)
• M13: 9,410,604 km (0.047 R)
• M14: 9,904,576 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 861.4

Radius: 9.1

Gravity: 10.4 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.07 AU - 1.67 AU

Year: 1127 Days

Day: 6.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 143.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 42,472,791 km

• M1: 113,395 km (0.082 R)
• M2: 455,825 km (0.103 R)
• M3: 1,037,760 km (0.115 R)
• M4: 1,339,051 km (0.07 R)
• M5: 1,727,706 km (0.052 R)
• M6: 2,146,580 km (0.034 R)
• M7: 2,434,556 km (0.11 R)
• M8: 3,146,492 km (0.088 R)
• M9: 3,990,972 km (0.111 R)
• M10: 4,321,583 km (0.107 R)
• M11: 4,746,441 km (0.099 R)
• M12: 6,213,398 km (0.04 R)
• M13: 7,075,680 km (0.101 R)
• M14: 8,070,207 km (0.108 R)
• M15: 8,374,788 km (0.111 R)
• M16: 8,744,594 km (0.111 R)
• M17: 9,395,494 km (0.11 R)
• M18: 10,529,596 km (0.113 R)
• M19: 10,826,847 km (0.112 R)
• M20: 11,163,741 km (0.053 R)
• M21: 11,929,533 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787.6

Radius: 9.3

Gravity: 9.11 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.27 AU - 1.97 AU

Year: 1449 Days

Day: 13.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 42,472,791 km

• M1: 115,789 km (0.066 R)
• M2: 430,393 km (0.083 R)
• M3: 851,810 km (0.102 R)
• M4: 1,286,093 km (0.09 R)
• M5: 1,597,556 km (0.104 R)
• M6: 1,927,569 km (0.037 R)
• M7: 2,364,394 km (0.056 R)
• M8: 3,158,310 km (0.11 R)
• M9: 3,683,848 km (0.06 R)
• M10: 4,211,180 km (0.115 R)
• M11: 4,889,307 km (0.072 R)
• M12: 5,395,098 km (0.119 R)
• M13: 6,864,298 km (0.101 R)
• M14: 7,636,074 km (0.097 R)
• M15: 9,801,952 km (0.053 R)
• M16: 10,132,114 km (0.105 R)
• M17: 10,675,902 km (0.066 R)
• M18: 13,286,535 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.3

Radius: 14.6

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.34 AU - 2.02 AU

Year: 1531 Days

Day: 5.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,472,791 km

• M1: 183,706 km (0.091 R)
• M2: 708,196 km (0.107 R)
• M3: 1,169,855 km (0.12 R)
• M4: 1,644,829 km (0.042 R)
• M5: 2,994,501 km (0.069 R)
• M6: 3,896,127 km (0.109 R)
• M7: 4,445,151 km (0.119 R)
• M8: 5,045,936 km (0.118 R)
• M9: 5,801,405 km (0.095 R)
• M10: 7,418,558 km (0.034 R)
• M11: 8,138,423 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.3

Radius: 13.5

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 2.63 AU - 2.95 AU

Year: 3276 Days

Day: 14.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,472,791 km

• M1: 183,856 km (0.101 R)
• M2: 917,933 km (0.104 R)
• M3: 1,554,771 km (0.12 R)
• M4: 2,210,458 km (0.116 R)
• M5: 3,013,948 km (0.102 R)
• M6: 3,502,236 km (0.102 R)
• M7: 3,984,988 km (0.108 R)
• M8: 5,062,841 km (0.081 R)
• M9: 5,782,855 km (0.119 R)
• M10: 7,279,732 km (0.041 R)
• M11: 7,760,390 km (0.101 R)
• M12: 9,021,649 km (0.116 R)
• M13: 10,008,546 km (0.114 R)
• M14: 10,756,536 km (0.08 R)
• M15: 11,501,383 km (0.103 R)
• M16: 12,491,123 km (0.04 R)
• M17: 13,671,600 km (0.043 R)
• M18: 14,640,246 km (0.112 R)
• M19: 16,973,524 km (0.086 R)
• M20: 18,420,883 km (0.071 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 68.7

Radius: 5.4

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 4.37 AU - 7.03 AU

Year: 9566 Days

Day: 21.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 42,472,791 km

• M1: 67,618 km (0.077 R)
• M2: 309,368 km (0.086 R)
• M3: 813,962 km (0.075 R)
• M4: 983,307 km (0.071 R)
• M5: 2,435,902 km (0.032 R)
• M6: 3,168,184 km (0.104 R)
• M7: 3,479,946 km (0.104 R)
• M8: 4,250,823 km (0.086 R)
• M9: 4,471,331 km (0.105 R)
• M10: 4,983,554 km (0.114 R)
• M11: 5,533,924 km (0.09 R)
• M12: 6,179,589 km (0.113 R)
• M13: 6,874,172 km (0.089 R)
• M14: 7,945,592 km (0.04 R)
• M15: 9,566,036 km (0.086 R)
• M16: 10,453,600 km (0.073 R)
• M17: 13,303,739 km (0.103 R)
• M18: 13,491,484 km (0.045 R)
• M19: 17,912,101 km (0.031 R)
• M20: 20,291,156 km (0.072 R)
• M21: 21,043,932 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 465.9

Radius: 7.7

Gravity: 7.86 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 4.96 AU - 7.04 AU

Year: 10331 Days

Day: 24.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 42,472,791 km

• M1: 95,743 km (0.1 R)
• M2: 376,837 km (0.11 R)
• M3: 632,500 km (0.115 R)
• M4: 895,642 km (0.087 R)
• M5: 1,339,499 km (0.117 R)
• M6: 1,830,330 km (0.12 R)
• M7: 2,567,847 km (0.1 R)
• M8: 3,395,273 km (0.045 R)
• M9: 4,938,974 km (0.042 R)
• M10: 5,730,646 km (0.068 R)
• M11: 7,644,152 km (0.092 R)
• M12: 11,049,448 km (0.11 R)
• M13: 12,341,076 km (0.084 R)
• M14: 13,256,167 km (0.108 R)
• M15: 16,475,363 km (0.102 R)
• M16: 17,023,639 km (0.097 R)
• M17: 18,012,182 km (0.1 R)
• M18: 18,301,654 km (0.117 R)
• M19: 24,143,451 km (0.119 R)
• M20: 25,119,427 km (0.047 R)
• M21: 27,149,919 km (0.075 R)
• M22: 27,818,322 km (0.064 R)
• M23: 32,486,075 km (0.062 R)
• M24: 35,455,593 km (0.094 R)
• M25: 37,298,040 km (0.069 R)
• M26: 38,961,868 km (0.089 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 326.5

Radius: 6.8

Gravity: 7.06 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 5.93 AU - 7.39 AU

Year: 12081 Days

Day: 24.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 42,472,791 km

• M1: 84,523 km (0.092 R)
• M2: 366,216 km (0.062 R)
• M3: 1,229,096 km (0.102 R)
• M4: 1,499,719 km (0.108 R)
• M5: 2,095,417 km (0.113 R)
• M6: 2,696,950 km (0.112 R)
• M7: 5,707,458 km (0.11 R)
• M8: 6,796,381 km (0.085 R)
• M9: 7,060,272 km (0.096 R)
• M10: 8,312,256 km (0.077 R)
• M11: 9,705,910 km (0.029 R)
• M12: 11,406,090 km (0.11 R)
• M13: 12,833,403 km (0.092 R)
• M14: 14,937,497 km (0.11 R)
• M15: 15,191,813 km (0.093 R)
• M16: 16,642,165 km (0.081 R)
• M17: 17,400,925 km (0.036 R)
• M18: 17,682,468 km (0.11 R)
• M19: 19,511,751 km (0.118 R)
• M20: 20,667,694 km (0.096 R)
• M21: 23,285,507 km (0.108 R)
• M22: 25,388,105 km (0.071 R)
• M23: 26,578,306 km (0.088 R)
• M24: 26,858,203 km (0.065 R)
• M25: 29,966,997 km (0.108 R)
• M26: 33,741,800 km (0.083 R)
• M27: 36,427,231 km (0.03 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 290 - 14,931 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit