🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.67 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129.1

Radius: 9.7

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.06 AU - 1.6 AU

Year: 1059 Days

Day: 8.4 Hours

Environment

Temp: -196 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 44,358,023 km

• M1: 120,725 km (0.095 R)
• M2: 459,415 km (0.099 R)
• M3: 770,878 km (0.079 R)
• M4: 1,107,473 km (0.113 R)
• M5: 1,738,626 km (0.086 R)
• M6: 2,251,448 km (0.096 R)
• M7: 3,150,382 km (0.052 R)
• M8: 3,656,322 km (0.089 R)
• M9: 4,229,730 km (0.101 R)
• M10: 4,846,672 km (0.03 R)
• M11: 5,692,199 km (0.072 R)
• M12: 6,150,417 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.3

Radius: 12.8

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.14 AU - 1.72 AU

Year: 1180 Days

Day: 9.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,358,023 km

• M1: 159,621 km (0.104 R)
• M2: 623,075 km (0.108 R)
• M3: 1,299,108 km (0.107 R)
• M4: 1,972,598 km (0.104 R)
• M5: 3,068,252 km (0.049 R)
• M6: 4,435,577 km (0.117 R)
• M7: 5,693,246 km (0.032 R)
• M8: 6,490,453 km (0.089 R)
• M9: 7,199,098 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 265.7

Radius: 14.3

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 3.46 AU - 3.54 AU

Year: 4520 Days

Day: 10.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,358,023 km

• M1: 178,620 km (0.089 R)
• M2: 1,178,532 km (0.118 R)
• M3: 1,755,681 km (0.069 R)
• M4: 2,744,373 km (0.077 R)
• M5: 3,445,538 km (0.12 R)
• M6: 4,879,135 km (0.103 R)
• M7: 5,428,458 km (0.078 R)
• M8: 7,575,786 km (0.087 R)
• M9: 8,183,153 km (0.084 R)
• M10: 9,279,556 km (0.117 R)
• M11: 11,848,002 km (0.105 R)
• M12: 12,667,948 km (0.025 R)
• M13: 18,461,873 km (0.059 R)
• M14: 19,094,971 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 131

Radius: 11.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 4.39 AU - 5.71 AU

Year: 7833 Days

Day: 8.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 44,358,023 km

• M1: 152,889 km (0.086 R)
• M2: 846,574 km (0.084 R)
• M3: 1,226,553 km (0.095 R)
• M4: 1,664,875 km (0.111 R)
• M5: 2,734,200 km (0.119 R)
• M6: 3,998,302 km (0.105 R)
• M7: 5,381,335 km (0.086 R)
• M8: 6,693,757 km (0.082 R)
• M9: 8,071,553 km (0.059 R)
• M10: 9,401,179 km (0.036 R)
• M11: 10,338,559 km (0.111 R)
• M12: 13,333,209 km (0.084 R)
• M13: 18,126,924 km (0.11 R)
• M14: 20,266,323 km (0.091 R)
• M15: 22,297,413 km (0.068 R)
• M16: 22,980,627 km (0.077 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 778.2

Radius: 5.1

Gravity: 29.92 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 5.99 AU - 7.01 AU

Year: 11439 Days

Day: 19.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 44,358,023 km

• M1: 63,429 km (0.111 R)
• M2: 366,365 km (0.03 R)
• M3: 1,423,873 km (0.117 R)
• M4: 1,644,380 km (0.076 R)
• M5: 1,820,606 km (0.116 R)
• M6: 2,211,057 km (0.113 R)
• M7: 2,549,597 km (0.104 R)
• M8: 6,144,134 km (0.076 R)
• M9: 6,730,857 km (0.097 R)
• M10: 7,354,381 km (0.09 R)
• M11: 7,970,126 km (0.112 R)
• M12: 8,908,553 km (0.097 R)
• M13: 17,780,305 km (0.108 R)
• M14: 23,672,666 km (0.064 R)
• M15: 26,394,300 km (0.103 R)
• M16: 27,518,229 km (0.088 R)
• M17: 28,039,578 km (0.079 R)
• M18: 34,215,427 km (0.115 R)
• M19: 50,863,725 km (0.045 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 161.9

Radius: 4.7

Gravity: 7.33 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 4.97 AU - 8.19 AU

Year: 11651 Days

Day: 18 Hours

Environment

Temp: -227 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 44,358,023 km

• M1: 58,493 km (0.077 R)
• M2: 246,238 km (0.096 R)
• M3: 710,291 km (0.088 R)
• M4: 2,433,509 km (0.09 R)
• M5: 2,680,943 km (0.099 R)
• M6: 7,347,948 km (0.108 R)
• M7: 10,176,994 km (0.112 R)
• M8: 12,696,222 km (0.115 R)
• M9: 16,085,661 km (0.069 R)
• M10: 21,405,361 km (0.068 R)
• M11: 22,609,175 km (0.096 R)
• M12: 25,898,533 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 999.3

Radius: 6.8

Gravity: 21.61 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 6.38 AU - 9.98 AU

Year: 16149 Days

Day: 23.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 44,358,023 km

• M1: 90,956 km (0.097 R)
• M2: 869,612 km (0.113 R)
• M3: 1,888,673 km (0.068 R)
• M4: 2,289,745 km (0.102 R)
• M5: 2,650,425 km (0.114 R)
• M6: 3,289,208 km (0.104 R)
• M7: 4,586,820 km (0.09 R)
• M8: 4,904,117 km (0.113 R)
• M9: 5,123,727 km (0.104 R)
• M10: 5,822,200 km (0.1 R)
• M11: 6,760,178 km (0.106 R)
• M12: 7,218,396 km (0.075 R)
• M13: 7,551,252 km (0.114 R)
• M14: 7,894,280 km (0.106 R)
• M15: 8,664,409 km (0.036 R)
• M16: 9,653,551 km (0.048 R)
• M17: 10,175,348 km (0.083 R)
• M18: 11,024,166 km (0.068 R)
• M19: 11,594,284 km (0.106 R)
• M20: 13,140,527 km (0.042 R)
• M21: 14,146,124 km (0.072 R)
• M22: 16,148,492 km (0.065 R)
• M23: 16,966,493 km (0.12 R)
• M24: 17,385,816 km (0.063 R)
• M25: 27,062,704 km (0.118 R)
• M26: 33,415,826 km (0.112 R)
• M27: 34,473,932 km (0.082 R)
• M28: 35,011,138 km (0.04 R)
• M29: 38,209,690 km (0.113 R)
• M30: 41,295,595 km (0.082 R)
• M31: 45,501,988 km (0.098 R)
• M32: 47,957,936 km (0.069 R)
• M33: 49,303,120 km (0.061 R)
• M34: 49,814,146 km (0.08 R)
• M35: 54,754,167 km (0.106 R)
• M36: 58,476,162 km (0.119 R)
• M37: 58,857,337 km (0.062 R)
• M38: 69,788,155 km (0.069 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 167.2

Radius: 5

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 7.21 AU - 10.39 AU

Year: 18019 Days

Day: 17.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 44,358,023 km

• M1: 62,382 km (0.062 R)
• M2: 333,603 km (0.093 R)
• M3: 553,363 km (0.12 R)
• M4: 729,738 km (0.098 R)
• M5: 905,366 km (0.116 R)
• M6: 1,153,699 km (0.099 R)
• M7: 1,834,070 km (0.042 R)
• M8: 1,994,140 km (0.094 R)
• M9: 2,360,954 km (0.063 R)
• M10: 3,048,505 km (0.114 R)
• M11: 4,317,694 km (0.085 R)
• M12: 4,960,965 km (0.113 R)
• M13: 6,183,329 km (0.109 R)
• M14: 6,508,555 km (0.112 R)
• M15: 7,037,233 km (0.057 R)
• M16: 7,553,196 km (0.061 R)
• M17: 7,966,984 km (0.09 R)
• M18: 10,265,555 km (0.056 R)
• M19: 16,733,719 km (0.11 R)
• M20: 18,304,646 km (0.026 R)
• M21: 26,883,186 km (0.11 R)
• M22: 29,231,125 km (0.071 R)
• M23: 35,120,195 km (0.061 R)
• M24: 37,206,935 km (0.036 R)
• M25: 37,800,988 km (0.119 R)
• M26: 38,280,749 km (0.108 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 441 - 17,181 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit