🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.56 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.5

Radius: 12.9

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.97 AU - 1.27 AU

Year: 778 Days

Day: 7.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 50,004,419 km

• M1: 160,369 km (0.088 R)
• M2: 630,854 km (0.091 R)
• M3: 1,183,319 km (0.064 R)
• M4: 1,944,174 km (0.117 R)
• M5: 2,404,487 km (0.07 R)
• M6: 2,853,579 km (0.066 R)
• M7: 3,279,485 km (0.101 R)
• M8: 4,668,202 km (0.055 R)
• M9: 5,282,151 km (0.06 R)
• M10: 6,438,992 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.1

Radius: 13.5

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.43 AU - 1.55 AU

Year: 1193 Days

Day: 7.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 50,004,419 km

• M1: 167,849 km (0.09 R)
• M2: 728,841 km (0.078 R)
• M3: 1,362,089 km (0.116 R)
• M4: 1,832,574 km (0.078 R)
• M5: 2,730,460 km (0.041 R)
• M6: 3,385,849 km (0.082 R)
• M7: 4,978,767 km (0.11 R)
• M8: 5,464,361 km (0.092 R)
• M9: 6,060,958 km (0.057 R)
• M10: 7,662,253 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.8

Radius: 10.7

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.58 AU - 2.16 AU

Year: 1678 Days

Day: 8.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,004,419 km

• M1: 133,142 km (0.08 R)
• M2: 828,024 km (0.112 R)
• M3: 1,528,441 km (0.025 R)
• M4: 2,315,925 km (0.073 R)
• M5: 3,557,437 km (0.085 R)
• M6: 4,215,518 km (0.071 R)
• M7: 5,255,672 km (0.074 R)
• M8: 9,809,880 km (0.026 R)
• M9: 10,228,904 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.5

Radius: 11.6

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.26 AU - 4.22 AU

Year: 4745 Days

Day: 5.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 50,004,419 km

• M1: 144,661 km (0.029 R)
• M2: 506,838 km (0.037 R)
• M3: 992,582 km (0.092 R)
• M4: 1,541,307 km (0.077 R)
• M5: 1,907,971 km (0.106 R)
• M6: 2,877,365 km (0.095 R)
• M7: 5,854,513 km (0.071 R)
• M8: 6,764,517 km (0.105 R)
• M9: 8,398,125 km (0.083 R)
• M10: 15,430,422 km (0.103 R)
• M11: 16,792,361 km (0.117 R)
• M12: 17,976,578 km (0.075 R)
• M13: 20,511,065 km (0.089 R)
• M14: 22,082,590 km (0.089 R)
• M15: 24,041,575 km (0.095 R)
• M16: 27,872,477 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421

Radius: 13.4

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 3.28 AU - 4.8 AU

Year: 5327 Days

Day: 7.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 50,004,419 km

• M1: 166,652 km (0.114 R)
• M2: 639,830 km (0.075 R)
• M3: 1,097,151 km (0.118 R)
• M4: 1,638,545 km (0.073 R)
• M5: 2,096,465 km (0.088 R)
• M6: 2,912,222 km (0.116 R)
• M7: 3,573,893 km (0.062 R)
• M8: 4,790,573 km (0.081 R)
• M9: 5,886,527 km (0.075 R)
• M10: 6,948,971 km (0.116 R)
• M11: 8,135,282 km (0.088 R)
• M12: 9,217,174 km (0.107 R)
• M13: 10,605,143 km (0.103 R)
• M14: 11,941,949 km (0.092 R)
• M15: 12,364,114 km (0.089 R)
• M16: 14,258,023 km (0.08 R)
• M17: 14,680,189 km (0.098 R)
• M18: 17,331,811 km (0.085 R)
• M19: 18,739,527 km (0.11 R)
• M20: 21,025,981 km (0.078 R)
• M21: 21,642,773 km (0.077 R)
• M22: 24,306,363 km (0.087 R)
• M23: 24,758,148 km (0.104 R)
• M24: 25,678,325 km (0.081 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 121.8

Radius: 6.2

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 4.73 AU - 7.13 AU

Year: 9473 Days

Day: 19.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 50,004,419 km

• M1: 77,043 km (0.099 R)
• M2: 293,960 km (0.096 R)
• M3: 543,339 km (0.056 R)
• M4: 812,616 km (0.092 R)
• M5: 1,286,542 km (0.119 R)
• M6: 1,662,481 km (0.115 R)
• M7: 3,336,781 km (0.093 R)
• M8: 3,936,219 km (0.118 R)
• M9: 4,250,225 km (0.096 R)
• M10: 4,532,516 km (0.082 R)
• M11: 5,108,618 km (0.113 R)
• M12: 5,537,365 km (0.107 R)
• M13: 6,436,000 km (0.12 R)
• M14: 6,840,363 km (0.046 R)
• M15: 8,666,803 km (0.08 R)
• M16: 12,857,339 km (0.049 R)
• M17: 13,200,067 km (0.046 R)
• M18: 14,632,317 km (0.052 R)
• M19: 16,278,642 km (0.048 R)
• M20: 16,622,119 km (0.084 R)
• M21: 20,927,097 km (0.099 R)
• M22: 22,725,113 km (0.091 R)
• M23: 23,661,746 km (0.067 R)
• M24: 23,954,957 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 174

Radius: 6.2

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 6.71 AU - 6.97 AU

Year: 11735 Days

Day: 20 Hours

Environment

Temp: -230 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 50,004,419 km

• M1: 90,208 km (0.051 R)
• M2: 430,991 km (0.102 R)
• M3: 1,571,974 km (0.119 R)
• M4: 2,015,083 km (0.056 R)
• M5: 2,520,575 km (0.103 R)
• M6: 3,106,998 km (0.08 R)
• M7: 3,465,135 km (0.058 R)
• M8: 3,688,485 km (0.094 R)
• M9: 3,897,623 km (0.088 R)
• M10: 5,266,144 km (0.119 R)
• M11: 5,963,121 km (0.07 R)
• M12: 6,383,491 km (0.119 R)
• M13: 6,583,952 km (0.057 R)
• M14: 8,623,868 km (0.12 R)
• M15: 9,161,374 km (0.074 R)
• M16: 12,394,184 km (0.115 R)
• M17: 12,706,843 km (0.092 R)
• M18: 13,024,739 km (0.1 R)
• M19: 20,698,212 km (0.053 R)
• M20: 21,435,580 km (0.058 R)
• M21: 30,452,442 km (0.11 R)
• M22: 32,971,670 km (0.089 R)
• M23: 33,572,156 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 138.4

Radius: 3.8

Gravity: 9.58 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 8.82 AU - 13.04 AU

Year: 23705 Days

Day: 18.7 Hours

Environment

Temp: -237 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 50,004,419 km

• M1: 51,013 km (0.1 R)
• M2: 417,677 km (0.097 R)
• M3: 543,788 km (0.06 R)
• M4: 671,096 km (0.11 R)
• M5: 2,063,254 km (0.119 R)
• M6: 2,207,616 km (0.119 R)
• M7: 2,378,008 km (0.072 R)
• M8: 2,724,028 km (0.052 R)
• M9: 3,220,543 km (0.101 R)
• M10: 3,341,418 km (0.082 R)
• M11: 3,936,668 km (0.109 R)
• M12: 6,405,033 km (0.081 R)
• M13: 8,541,590 km (0.086 R)
• M14: 9,895,750 km (0.082 R)
• M15: 10,784,211 km (0.115 R)
• M16: 12,598,534 km (0.088 R)
• M17: 18,693,600 km (0.084 R)
• M18: 19,242,774 km (0.025 R)
• M19: 23,845,901 km (0.097 R)
• M20: 50,004,435 km (0.082 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 529 - 10,536 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit