🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 575.8

Radius: 12.6

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.78 AU - 0.84 AU

Year: 494 Days

Day: 12.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,381,792 km

• M1: 156,629 km (0.11 R)
• M2: 587,172 km (0.117 R)
• M3: 1,006,046 km (0.099 R)
• M4: 1,676,992 km (0.096 R)
• M5: 2,158,548 km (0.109 R)
• M6: 2,681,542 km (0.055 R)
• M7: 3,219,496 km (0.053 R)
• M8: 3,663,203 km (0.107 R)
• M9: 5,119,688 km (0.12 R)
• M10: 5,830,876 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.2

Radius: 11.9

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.85 AU - 1.31 AU

Year: 761 Days

Day: 9.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,381,792 km

• M1: 148,401 km (0.049 R)
• M2: 526,884 km (0.098 R)
• M3: 962,513 km (0.087 R)
• M4: 2,147,328 km (0.092 R)
• M5: 2,789,851 km (0.065 R)
• M6: 3,370,290 km (0.12 R)
• M7: 3,888,946 km (0.1 R)
• M8: 4,281,940 km (0.088 R)
• M9: 4,951,540 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.9

Radius: 9.2

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 2.36 AU - 2.54 AU

Year: 2601 Days

Day: 5.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,381,792 km

• M1: 114,442 km (0.109 R)
• M2: 450,439 km (0.093 R)
• M3: 3,182,096 km (0.033 R)
• M4: 3,610,545 km (0.08 R)
• M5: 4,399,075 km (0.107 R)
• M6: 5,112,806 km (0.107 R)
• M7: 5,741,716 km (0.046 R)
• M8: 6,293,882 km (0.104 R)
• M9: 6,637,358 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.3

Radius: 8.5

Gravity: 8.81 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 2.25 AU - 3.41 AU

Year: 3229 Days

Day: 7.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,381,792 km

• M1: 105,915 km (0.093 R)
• M2: 427,850 km (0.048 R)
• M3: 790,475 km (0.103 R)
• M4: 1,110,914 km (0.046 R)
• M5: 1,660,237 km (0.102 R)
• M6: 2,088,685 km (0.098 R)
• M7: 2,528,503 km (0.081 R)
• M8: 3,651,983 km (0.113 R)
• M9: 4,120,225 km (0.118 R)
• M10: 4,559,294 km (0.119 R)
• M11: 5,479,770 km (0.109 R)
• M12: 7,684,394 km (0.089 R)
• M13: 9,018,956 km (0.073 R)
• M14: 12,496,509 km (0.098 R)
• M15: 13,043,738 km (0.111 R)
• M16: 15,136,612 km (0.118 R)
• M17: 15,497,442 km (0.065 R)
• M18: 16,236,007 km (0.036 R)
• M19: 16,832,752 km (0.116 R)
• M20: 17,164,261 km (0.105 R)
• M21: 20,161,455 km (0.112 R)
• M22: 21,297,650 km (0.105 R)
• M23: 21,685,558 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.6

Radius: 13.1

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 3.48 AU - 4.22 AU

Year: 5124 Days

Day: 12.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 59.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 70,381,792 km

• M1: 162,912 km (0.107 R)
• M2: 639,381 km (0.113 R)
• M3: 1,415,046 km (0.115 R)
• M4: 2,042,161 km (0.06 R)
• M5: 2,707,721 km (0.115 R)
• M6: 3,663,203 km (0.095 R)
• M7: 5,517,917 km (0.107 R)
• M8: 8,929,497 km (0.079 R)
• M9: 12,025,126 km (0.098 R)
• M10: 13,338,296 km (0.106 R)
• M11: 13,868,171 km (0.113 R)
• M12: 16,853,098 km (0.069 R)
• M13: 18,300,906 km (0.074 R)
• M14: 19,423,189 km (0.087 R)
• M15: 19,898,462 km (0.055 R)
• M16: 21,877,641 km (0.1 R)
• M17: 22,764,757 km (0.103 R)
• M18: 24,062,668 km (0.119 R)
• M19: 24,532,256 km (0.11 R)
• M20: 27,564,904 km (0.104 R)
• M21: 28,950,629 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.3

Radius: 14.5

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.97 AU - 6.05 AU

Year: 7606 Days

Day: 5.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 70,381,792 km

• M1: 182,809 km (0.096 R)
• M2: 656,585 km (0.115 R)
• M3: 1,115,551 km (0.108 R)
• M4: 1,663,229 km (0.102 R)
• M5: 2,921,347 km (0.088 R)
• M6: 3,647,495 km (0.12 R)
• M7: 4,249,178 km (0.102 R)
• M8: 5,124,475 km (0.041 R)
• M9: 6,896,611 km (0.088 R)
• M10: 7,622,460 km (0.104 R)
• M11: 9,684,966 km (0.098 R)
• M12: 10,845,546 km (0.111 R)
• M13: 12,205,541 km (0.034 R)
• M14: 15,136,462 km (0.111 R)
• M15: 15,710,020 km (0.085 R)
• M16: 16,833,052 km (0.049 R)
• M17: 18,871,472 km (0.112 R)
• M18: 22,108,770 km (0.096 R)
• M19: 22,847,784 km (0.06 R)
• M20: 23,434,058 km (0.076 R)
• M21: 24,724,040 km (0.051 R)
• M22: 29,662,864 km (0.042 R)
• M23: 30,260,508 km (0.096 R)
• M24: 32,206,028 km (0.108 R)
• M25: 34,451,941 km (0.075 R)
• M26: 37,259,893 km (0.059 R)
• M27: 37,955,822 km (0.065 R)
• M28: 38,424,512 km (0.045 R)
• M29: 39,974,795 km (0.044 R)
• M30: 41,072,245 km (0.049 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 269.7

Radius: 7.6

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 7.3 AU - 8.84 AU

Year: 15549 Days

Day: 21.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 70,381,792 km

• M1: 94,845 km (0.12 R)
• M2: 1,482,814 km (0.05 R)
• M3: 1,863,690 km (0.115 R)
• M4: 2,595,972 km (0.031 R)
• M5: 3,656,172 km (0.076 R)
• M6: 4,887,213 km (0.04 R)
• M7: 5,563,246 km (0.106 R)
• M8: 7,628,594 km (0.06 R)
• M9: 8,809,220 km (0.049 R)
• M10: 35,907,379 km (0.051 R)
• M11: 36,857,026 km (0.066 R)
• M12: 46,729,588 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 694.1

Radius: 5.1

Gravity: 26.69 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 7.01 AU - 10.57 AU

Year: 17676 Days

Day: 20.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 70,381,792 km

• M1: 63,429 km (0.085 R)
• M2: 368,011 km (0.035 R)
• M3: 561,142 km (0.054 R)
• M4: 1,525,898 km (0.071 R)
• M5: 2,019,571 km (0.118 R)
• M6: 2,261,321 km (0.065 R)
• M7: 2,499,631 km (0.065 R)
• M8: 4,045,126 km (0.081 R)
• M9: 5,199,124 km (0.098 R)
• M10: 6,643,641 km (0.11 R)
• M11: 8,695,975 km (0.115 R)
• M12: 9,227,645 km (0.06 R)
• M13: 16,822,281 km (0.101 R)
• M14: 17,730,190 km (0.052 R)
• M15: 19,285,559 km (0.058 R)
• M16: 23,567,649 km (0.101 R)
• M17: 25,658,877 km (0.111 R)
• M18: 26,419,134 km (0.081 R)
• M19: 28,673,723 km (0.094 R)
• M20: 30,931,454 km (0.077 R)
• M21: 32,166,085 km (0.097 R)
• M22: 32,795,593 km (0.04 R)
• M23: 38,693,040 km (0.105 R)
• M24: 51,325,533 km (0.117 R)
• M25: 57,726,378 km (0.116 R)
• M26: 59,217,569 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: 319 - 18,773 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit