🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.53

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.45 AU - 0.57 AU

Year: 235 Days

Day: 29.1 Hours

Environment

Temp: -118 °C

Axial Tilt: 22.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 67,915,407 km

• M1: 40,990 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.1

Radius: 12.7

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.79 AU - 1.13 AU

Year: 607 Days

Day: 6.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 67,915,407 km

• M1: 157,975 km (0.09 R)
• M2: 572,361 km (0.117 R)
• M3: 1,095,206 km (0.054 R)
• M4: 1,553,424 km (0.118 R)
• M5: 2,324,751 km (0.114 R)
• M6: 2,803,913 km (0.093 R)
• M7: 3,405,147 km (0.088 R)
• M8: 3,877,278 km (0.111 R)
• M9: 4,460,859 km (0.072 R)
• M10: 4,998,813 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667.5

Radius: 12

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.16 AU - 1.8 AU

Year: 1163 Days

Day: 11.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,915,407 km

• M1: 149,448 km (0.065 R)
• M2: 607,966 km (0.067 R)
• M3: 1,062,294 km (0.075 R)
• M4: 1,479,523 km (0.082 R)
• M5: 2,048,593 km (0.091 R)
• M6: 2,610,632 km (0.083 R)
• M7: 3,419,359 km (0.093 R)
• M8: 4,370,801 km (0.111 R)
• M9: 5,189,401 km (0.117 R)
• M10: 6,652,318 km (0.071 R)
• M11: 9,575,909 km (0.091 R)
• M12: 11,053,487 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.4

Radius: 13.3

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 3.53 AU - 3.81 AU

Year: 4540 Days

Day: 10.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,915,407 km

• M1: 166,502 km (0.045 R)
• M2: 643,720 km (0.071 R)
• M3: 1,427,762 km (0.073 R)
• M4: 2,169,917 km (0.118 R)
• M5: 3,101,164 km (0.077 R)
• M6: 4,076,243 km (0.093 R)
• M7: 4,571,262 km (0.057 R)
• M8: 5,106,224 km (0.053 R)
• M9: 5,812,027 km (0.099 R)
• M10: 7,890,390 km (0.088 R)
• M11: 10,105,037 km (0.106 R)
• M12: 11,424,341 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238

Radius: 9.3

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 5.19 AU - 6.59 AU

Year: 9230 Days

Day: 9.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 67,915,407 km

• M1: 115,639 km (0.06 R)
• M2: 607,068 km (0.03 R)
• M3: 1,198,279 km (0.053 R)
• M4: 1,492,089 km (0.055 R)
• M5: 1,917,845 km (0.095 R)
• M6: 2,277,328 km (0.112 R)
• M7: 2,882,751 km (0.055 R)
• M8: 3,315,837 km (0.069 R)
• M9: 4,312,907 km (0.087 R)
• M10: 4,616,889 km (0.085 R)
• M11: 5,267,939 km (0.091 R)
• M12: 5,675,294 km (0.093 R)
• M13: 6,990,559 km (0.114 R)
• M14: 7,627,995 km (0.075 R)
• M15: 8,816,251 km (0.062 R)
• M16: 9,774,426 km (0.1 R)
• M17: 10,211,999 km (0.115 R)
• M18: 14,816,772 km (0.09 R)
• M19: 17,282,294 km (0.113 R)
• M20: 19,319,219 km (0.084 R)
• M21: 21,879,736 km (0.113 R)
• M22: 22,402,580 km (0.112 R)
• M23: 26,636,200 km (0.113 R)
• M24: 29,254,312 km (0.079 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 153.3

Radius: 4.4

Gravity: 7.92 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 7.59 AU - 8.85 AU

Year: 15217 Days

Day: 24 Hours

Environment

Temp: -235 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 67,915,407 km

• M1: 55,351 km (0.069 R)
• M2: 209,287 km (0.069 R)
• M3: 684,709 km (0.114 R)
• M4: 1,072,168 km (0.103 R)
• M5: 1,222,364 km (0.114 R)
• M6: 1,461,571 km (0.116 R)
• M7: 1,893,610 km (0.091 R)
• M8: 2,352,875 km (0.067 R)
• M9: 2,822,463 km (0.086 R)
• M10: 4,413,736 km (0.112 R)
• M11: 5,713,891 km (0.099 R)
• M12: 6,041,510 km (0.114 R)
• M13: 6,698,544 km (0.109 R)
• M14: 7,325,509 km (0.081 R)
• M15: 8,071,703 km (0.073 R)
• M16: 9,395,943 km (0.06 R)
• M17: 9,759,765 km (0.119 R)
• M18: 10,515,683 km (0.083 R)
• M19: 13,241,656 km (0.056 R)
• M20: 13,641,231 km (0.115 R)
• M21: 18,439,882 km (0.102 R)
• M22: 20,410,834 km (0.088 R)
• M23: 23,748,662 km (0.11 R)
• M24: 25,898,832 km (0.087 R)
• M25: 28,456,956 km (0.086 R)
• M26: 28,930,882 km (0.052 R)
• M27: 30,978,877 km (0.112 R)
• M28: 35,469,655 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 498.1

Radius: 7.9

Gravity: 7.98 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 7.61 AU - 11.97 AU

Year: 19778 Days

Day: 24.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 67,915,407 km

• M1: 109,506 km (0.119 R)
• M2: 717,322 km (0.117 R)
• M3: 1,120,189 km (0.078 R)
• M4: 1,786,647 km (0.1 R)
• M5: 2,079,710 km (0.056 R)
• M6: 2,383,543 km (0.091 R)
• M7: 2,834,880 km (0.072 R)
• M8: 3,819,533 km (0.078 R)
• M9: 5,835,813 km (0.031 R)
• M10: 6,570,937 km (0.07 R)
• M11: 7,139,259 km (0.034 R)
• M12: 7,412,275 km (0.039 R)
• M13: 8,423,707 km (0.099 R)
• M14: 8,832,258 km (0.079 R)
• M15: 9,689,005 km (0.082 R)
• M16: 14,967,566 km (0.093 R)
• M17: 17,792,872 km (0.103 R)
• M18: 18,211,596 km (0.106 R)
• M19: 18,636,753 km (0.101 R)
• M20: 19,506,964 km (0.1 R)
• M21: 20,862,620 km (0.06 R)
• M22: 21,141,171 km (0.106 R)
• M23: 24,679,759 km (0.088 R)
• M24: 25,305,527 km (0.098 R)
• M25: 25,941,916 km (0.11 R)
• M26: 42,783,944 km (0.065 R)
• M27: 43,233,785 km (0.041 R)
• M28: 49,208,125 km (0.111 R)
• M29: 52,220,877 km (0.096 R)
• M30: 53,598,524 km (0.119 R)
• M31: 60,286,296 km (0.113 R)
• M32: 61,611,135 km (0.081 R)
• M33: 62,761,991 km (0.051 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 503 - 16,947 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit