🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.5 AU - 0.62 AU

Year: 271 Days

Day: 41.8 Hours

Environment

Temp: -116 °C

Axial Tilt: 4.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 45,025,910 km

• M1: 435,031 km (0.045 R)
• M2: 531,222 km (0.116 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.87

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.61 AU - 0.69 AU

Year: 338 Days

Day: 34 Hours

Environment

Temp: -137 °C

Axial Tilt: 29.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,025,910 km

• M1: 273,315 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201.3

Radius: 12.9

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.91 AU - 1.47 AU

Year: 838 Days

Day: 9.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 45,025,910 km

• M1: 163,062 km (0.116 R)
• M2: 656,435 km (0.086 R)
• M3: 1,249,441 km (0.1 R)
• M4: 1,725,611 km (0.115 R)
• M5: 2,332,680 km (0.069 R)
• M6: 3,771,662 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.6

Radius: 14.3

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.72 AU - 1.76 AU

Year: 1482 Days

Day: 13.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,025,910 km

• M1: 177,872 km (0.12 R)
• M2: 758,162 km (0.078 R)
• M3: 1,210,845 km (0.091 R)
• M4: 1,982,172 km (0.117 R)
• M5: 2,619,160 km (0.114 R)
• M6: 3,535,596 km (0.114 R)
• M7: 4,689,145 km (0.083 R)
• M8: 6,158,795 km (0.069 R)
• M9: 6,683,883 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.7

Radius: 10.8

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.64 AU - 1.88 AU

Year: 1508 Days

Day: 5.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,025,910 km

• M1: 134,339 km (0.105 R)
• M2: 496,366 km (0.111 R)
• M3: 835,803 km (0.1 R)
• M4: 1,185,563 km (0.071 R)
• M5: 1,535,323 km (0.063 R)
• M6: 1,871,469 km (0.103 R)
• M7: 2,222,276 km (0.112 R)
• M8: 2,860,162 km (0.09 R)
• M9: 3,632,685 km (0.095 R)
• M10: 4,872,702 km (0.088 R)
• M11: 7,500,089 km (0.113 R)
• M12: 7,856,431 km (0.066 R)
• M13: 8,426,848 km (0.104 R)
• M14: 9,650,559 km (0.056 R)
• M15: 10,171,907 km (0.07 R)
• M16: 11,521,579 km (0.055 R)
• M17: 12,715,370 km (0.119 R)
• M18: 13,104,923 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.6

Radius: 8.1

Gravity: 12.4 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.91 AU - 1.93 AU

Year: 1718 Days

Day: 12.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 45,025,910 km

• M1: 100,679 km (0.085 R)
• M2: 359,184 km (0.106 R)
• M3: 625,917 km (0.1 R)
• M4: 883,824 km (0.067 R)
• M5: 1,474,137 km (0.083 R)
• M6: 1,802,954 km (0.086 R)
• M7: 2,242,023 km (0.085 R)
• M8: 2,693,809 km (0.093 R)
• M9: 3,708,382 km (0.068 R)
• M10: 4,016,404 km (0.111 R)
• M11: 4,460,410 km (0.093 R)
• M12: 5,355,454 km (0.057 R)
• M13: 6,138,898 km (0.11 R)
• M14: 7,639,963 km (0.079 R)
• M15: 8,050,609 km (0.107 R)
• M16: 9,537,612 km (0.057 R)
• M17: 10,399,296 km (0.106 R)
• M18: 11,199,495 km (0.078 R)
• M19: 12,001,040 km (0.102 R)
• M20: 13,211,736 km (0.057 R)
• M21: 13,547,882 km (0.105 R)
• M22: 13,932,947 km (0.093 R)
• M23: 15,131,825 km (0.036 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405.2

Radius: 12.1

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.73 AU - 2.41 AU

Year: 1923 Days

Day: 14.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,025,910 km

• M1: 150,495 km (0.119 R)
• M2: 584,778 km (0.119 R)
• M3: 973,583 km (0.088 R)
• M4: 1,690,905 km (0.03 R)
• M5: 2,237,685 km (0.104 R)
• M6: 4,638,581 km (0.078 R)
• M7: 5,631,163 km (0.116 R)
• M8: 6,392,317 km (0.099 R)
• M9: 8,848,714 km (0.114 R)
• M10: 9,244,999 km (0.1 R)
• M11: 11,840,821 km (0.078 R)
• M12: 13,128,859 km (0.039 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.1

Radius: 12.5

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.82 AU - 2.38 AU

Year: 1965 Days

Day: 12 Hours

Environment

Temp: -195 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 45,025,910 km

• M1: 155,432 km (0.093 R)
• M2: 634,445 km (0.076 R)
• M3: 1,037,461 km (0.096 R)
• M4: 1,880,894 km (0.091 R)
• M5: 2,845,202 km (0.114 R)
• M6: 3,390,636 km (0.117 R)
• M7: 4,151,790 km (0.118 R)
• M8: 5,755,180 km (0.088 R)
• M9: 6,256,781 km (0.047 R)
• M10: 6,684,033 km (0.089 R)
• M11: 7,293,195 km (0.045 R)
• M12: 8,932,339 km (0.081 R)
• M13: 9,972,942 km (0.082 R)
• M14: 10,948,171 km (0.058 R)
• M15: 12,411,238 km (0.098 R)
• M16: 14,734,642 km (0.072 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 498.2

Radius: 14.5

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.96 AU - 2.96 AU

Year: 2491 Days

Day: 10.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,025,910 km

• M1: 182,958 km (0.115 R)
• M2: 1,085,183 km (0.107 R)
• M3: 1,760,468 km (0.085 R)
• M4: 2,355,119 km (0.095 R)
• M5: 2,809,897 km (0.072 R)
• M6: 4,524,438 km (0.08 R)
• M7: 5,800,358 km (0.106 R)
• M8: 6,885,392 km (0.065 R)
• M9: 8,071,104 km (0.101 R)
• M10: 8,793,812 km (0.076 R)
• M11: 9,490,938 km (0.052 R)
• M12: 11,033,741 km (0.104 R)
• M13: 12,449,535 km (0.113 R)
• M14: 13,894,949 km (0.065 R)
• M15: 14,704,124 km (0.086 R)

Planet 10 - Gas Giant

Semi-Major Axis: 5.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.9

Radius: 11.1

Gravity: 7.02 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 5.24 AU - 5.56 AU

Year: 8102 Days

Day: 8.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 45,025,910 km

• M1: 140,173 km (0.077 R)
• M2: 559,646 km (0.087 R)
• M3: 2,338,813 km (0.094 R)
• M4: 2,739,735 km (0.116 R)
• M5: 3,164,294 km (0.067 R)
• M6: 4,709,790 km (0.062 R)
• M7: 5,451,496 km (0.103 R)
• M8: 7,364,554 km (0.116 R)
• M9: 8,494,765 km (0.082 R)
• M10: 10,528,549 km (0.055 R)
• M11: 11,523,225 km (0.101 R)
• M12: 12,867,960 km (0.053 R)
• M13: 14,314,571 km (0.081 R)
• M14: 15,468,719 km (0.072 R)
• M15: 17,600,189 km (0.088 R)
• M16: 18,475,636 km (0.106 R)
• M17: 22,018,263 km (0.036 R)
• M18: 22,692,351 km (0.082 R)
• M19: 36,127,587 km (0.073 R)
• M20: 43,692,751 km (0.081 R)
• M21: 44,222,776 km (0.102 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 183 - 16,760 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit