🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 336.2

Radius: 12.5

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.89 AU - 0.91 AU

Year: 551 Days

Day: 5.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 85,082,647 km

• M1: 155,432 km (0.11 R)
• M2: 593,455 km (0.059 R)
• M3: 1,209,948 km (0.111 R)
• M4: 1,685,370 km (0.041 R)
• M5: 2,463,877 km (0.109 R)
• M6: 2,921,048 km (0.118 R)
• M7: 3,423,398 km (0.086 R)
• M8: 3,996,058 km (0.09 R)
• M9: 4,491,078 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.4

Radius: 10.8

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.45 AU - 1.57 AU

Year: 1198 Days

Day: 13.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 85,082,647 km

• M1: 134,339 km (0.095 R)
• M2: 484,398 km (0.069 R)
• M3: 894,296 km (0.06 R)
• M4: 1,248,993 km (0.1 R)
• M5: 1,724,564 km (0.106 R)
• M6: 2,423,635 km (0.097 R)
• M7: 3,185,387 km (0.065 R)
• M8: 3,772,110 km (0.073 R)
• M9: 4,192,181 km (0.107 R)
• M10: 4,576,797 km (0.086 R)
• M11: 5,002,553 km (0.101 R)
• M12: 6,379,003 km (0.118 R)
• M13: 7,683,197 km (0.063 R)
• M14: 8,187,940 km (0.105 R)
• M15: 8,561,935 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 791.2

Radius: 15

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.57 AU - 2.53 AU

Year: 1895 Days

Day: 7.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 85,082,647 km

• M1: 186,549 km (0.088 R)
• M2: 729,140 km (0.07 R)
• M3: 1,651,860 km (0.085 R)
• M4: 2,188,617 km (0.115 R)
• M5: 2,684,833 km (0.069 R)
• M6: 3,471,119 km (0.065 R)
• M7: 4,308,568 km (0.052 R)
• M8: 4,924,912 km (0.114 R)
• M9: 5,506,249 km (0.109 R)
• M10: 6,058,714 km (0.118 R)
• M11: 6,674,459 km (0.082 R)
• M12: 8,002,289 km (0.068 R)
• M13: 8,618,333 km (0.054 R)
• M14: 9,100,936 km (0.058 R)
• M15: 10,155,900 km (0.107 R)
• M16: 10,805,155 km (0.051 R)
• M17: 12,962,207 km (0.112 R)
• M18: 14,838,613 km (0.06 R)
• M19: 15,533,944 km (0.059 R)
• M20: 16,445,892 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.4

Radius: 9.7

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 2.01 AU - 3.19 AU

Year: 2707 Days

Day: 5.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 85,082,647 km

• M1: 121,324 km (0.087 R)
• M2: 427,850 km (0.109 R)
• M3: 1,061,247 km (0.07 R)
• M4: 1,365,829 km (0.042 R)
• M5: 1,925,474 km (0.099 R)
• M6: 2,552,738 km (0.115 R)
• M7: 2,936,008 km (0.059 R)
• M8: 3,248,518 km (0.116 R)
• M9: 3,683,399 km (0.099 R)
• M10: 4,341,929 km (0.107 R)
• M11: 5,463,913 km (0.085 R)
• M12: 7,507,719 km (0.11 R)
• M13: 8,595,445 km (0.044 R)
• M14: 9,177,231 km (0.113 R)
• M15: 10,048,938 km (0.118 R)
• M16: 10,385,533 km (0.114 R)
• M17: 11,770,510 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.5

Radius: 11

Gravity: 7.51 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 3.13 AU - 4.99 AU

Year: 5282 Days

Day: 6.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 85,082,647 km

• M1: 137,032 km (0.048 R)
• M2: 598,840 km (0.035 R)
• M3: 1,034,768 km (0.104 R)
• M4: 1,425,369 km (0.101 R)
• M5: 1,887,028 km (0.079 R)
• M6: 2,919,402 km (0.084 R)
• M7: 3,605,309 km (0.112 R)
• M8: 4,095,691 km (0.112 R)
• M9: 5,210,793 km (0.074 R)
• M10: 6,286,103 km (0.111 R)
• M11: 7,393,276 km (0.073 R)
• M12: 9,164,066 km (0.112 R)
• M13: 9,812,872 km (0.12 R)
• M14: 11,201,889 km (0.077 R)
• M15: 14,026,147 km (0.104 R)
• M16: 14,596,863 km (0.09 R)
• M17: 15,064,506 km (0.108 R)
• M18: 17,554,562 km (0.08 R)
• M19: 20,452,123 km (0.092 R)
• M20: 21,484,797 km (0.1 R)
• M21: 22,014,075 km (0.056 R)
• M22: 22,552,029 km (0.085 R)
• M23: 26,222,113 km (0.077 R)
• M24: 33,495,262 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.7

Radius: 12.4

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 5.5 AU - 6.16 AU

Year: 9089 Days

Day: 6.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 85,082,647 km

• M1: 154,235 km (0.027 R)
• M2: 545,434 km (0.095 R)
• M3: 1,975,589 km (0.097 R)
• M4: 2,774,891 km (0.087 R)
• M5: 3,328,702 km (0.076 R)
• M6: 4,574,404 km (0.034 R)
• M7: 5,351,116 km (0.098 R)
• M8: 6,605,644 km (0.079 R)
• M9: 7,400,307 km (0.105 R)
• M10: 7,800,482 km (0.103 R)
• M11: 8,865,020 km (0.099 R)
• M12: 9,689,753 km (0.07 R)
• M13: 13,041,194 km (0.1 R)
• M14: 13,746,100 km (0.114 R)
• M15: 16,959,911 km (0.03 R)
• M16: 17,728,993 km (0.045 R)
• M17: 18,741,322 km (0.077 R)
• M18: 19,715,503 km (0.025 R)
• M19: 26,654,002 km (0.082 R)
• M20: 30,055,858 km (0.068 R)
• M21: 33,627,956 km (0.06 R)
• M22: 36,198,795 km (0.097 R)
• M23: 43,001,609 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 460.4

Radius: 6.7

Gravity: 10.26 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 5.43 AU - 8.33 AU

Year: 11652 Days

Day: 18.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 85,082,647 km

• M1: 83,326 km (0.081 R)
• M2: 353,949 km (0.092 R)
• M3: 647,908 km (0.084 R)
• M4: 927,507 km (0.068 R)
• M5: 1,180,477 km (0.042 R)
• M6: 1,676,394 km (0.087 R)
• M7: 2,073,127 km (0.068 R)
• M8: 2,358,710 km (0.11 R)
• M9: 3,009,161 km (0.117 R)
• M10: 3,721,845 km (0.102 R)
• M11: 3,956,265 km (0.07 R)
• M12: 4,454,875 km (0.108 R)
• M13: 5,644,178 km (0.107 R)
• M14: 8,277,250 km (0.119 R)
• M15: 8,768,679 km (0.108 R)
• M16: 10,107,580 km (0.077 R)
• M17: 10,411,413 km (0.077 R)
• M18: 11,687,782 km (0.104 R)
• M19: 12,769,674 km (0.096 R)
• M20: 13,792,924 km (0.05 R)
• M21: 14,419,739 km (0.076 R)
• M22: 15,595,728 km (0.062 R)
• M23: 16,623,465 km (0.089 R)
• M24: 18,586,039 km (0.116 R)
• M25: 19,195,950 km (0.06 R)
• M26: 19,740,486 km (0.106 R)
• M27: 20,697,913 km (0.053 R)
• M28: 23,844,704 km (0.073 R)
• M29: 25,578,244 km (0.103 R)
• M30: 26,811,678 km (0.101 R)
• M31: 28,383,503 km (0.119 R)
• M32: 35,868,932 km (0.098 R)
• M33: 36,221,384 km (0.031 R)
• M34: 37,412,632 km (0.073 R)
• M35: 43,763,062 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 425.3

Radius: 4.2

Gravity: 24.11 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 5.46 AU - 8.34 AU

Year: 11703 Days

Day: 16.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 85,082,647 km

• M1: 52,210 km (0.082 R)
• M2: 217,964 km (0.085 R)
• M3: 1,216,679 km (0.073 R)
• M4: 1,538,614 km (0.114 R)
• M5: 3,460,947 km (0.029 R)
• M6: 4,324,874 km (0.037 R)
• M7: 4,731,481 km (0.105 R)
• M8: 7,154,967 km (0.102 R)
• M9: 8,994,123 km (0.117 R)
• M10: 9,510,834 km (0.05 R)
• M11: 12,451,480 km (0.109 R)
• M12: 12,740,203 km (0.095 R)
• M13: 16,493,315 km (0.042 R)
• M14: 16,701,705 km (0.053 R)
• M15: 24,879,023 km (0.063 R)
• M16: 40,813,141 km (0.028 R)
• M17: 41,835,194 km (0.071 R)
• M18: 43,532,532 km (0.079 R)
• M19: 43,930,612 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 899.9

Radius: 3.3

Gravity: 82.64 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 8.93 AU - 11.21 AU

Year: 20633 Days

Day: 17.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 85,082,647 km

• M1: 40,990 km (0.118 R)
• M2: 223,649 km (0.03 R)
• M3: 652,396 km (0.096 R)
• M4: 886,218 km (0.051 R)
• M5: 1,307,037 km (0.109 R)
• M6: 2,030,492 km (0.118 R)
• M7: 2,648,780 km (0.08 R)
• M8: 3,533,203 km (0.067 R)
• M9: 6,075,469 km (0.102 R)
• M10: 6,432,110 km (0.049 R)
• M11: 8,264,834 km (0.098 R)
• M12: 8,427,147 km (0.104 R)
• M13: 9,040,499 km (0.1 R)
• M14: 13,283,842 km (0.062 R)
• M15: 19,060,414 km (0.086 R)
• M16: 21,204,301 km (0.117 R)
• M17: 33,396,378 km (0.09 R)
• M18: 36,494,999 km (0.116 R)
• M19: 39,626,531 km (0.108 R)
• M20: 47,274,124 km (0.071 R)
• M21: 56,817,122 km (0.05 R)
• M22: 61,829,997 km (0.092 R)
• M23: 70,449,976 km (0.096 R)
• M24: 73,415,005 km (0.116 R)
• M25: 78,137,361 km (0.059 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: 356 - 11,275 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit