🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.53 AU - 0.75 AU

Year: 326 Days

Day: 20.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 44.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177.2

Radius: 14

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.86 AU - 0.92 AU

Year: 534 Days

Day: 12.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,402,216 km

• M1: 174,132 km (0.102 R)
• M2: 1,023,399 km (0.103 R)
• M3: 1,605,784 km (0.112 R)
• M4: 2,078,812 km (0.081 R)
• M5: 2,655,063 km (0.067 R)
• M6: 3,234,306 km (0.091 R)
• M7: 3,771,213 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.8

Radius: 10.7

Gravity: 6.41 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.73 AU - 1.05 AU

Year: 534 Days

Day: 15 Hours

Environment

Temp: -142 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 61,402,216 km

• M1: 133,142 km (0.056 R)
• M2: 576,101 km (0.067 R)
• M3: 1,292,825 km (0.11 R)
• M4: 1,636,002 km (0.073 R)
• M5: 2,093,921 km (0.087 R)
• M6: 2,678,849 km (0.042 R)
• M7: 3,307,908 km (0.075 R)
• M8: 3,921,259 km (0.086 R)
• M9: 4,718,018 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 743

Radius: 8.3

Gravity: 10.79 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.96 AU - 1.34 AU

Year: 784 Days

Day: 10.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 61,402,216 km

• M1: 103,223 km (0.085 R)
• M2: 379,380 km (0.11 R)
• M3: 1,005,746 km (0.081 R)
• M4: 1,379,143 km (0.11 R)
• M5: 1,652,907 km (0.067 R)
• M6: 2,020,170 km (0.079 R)
• M7: 2,430,367 km (0.091 R)
• M8: 2,773,844 km (0.094 R)
• M9: 3,071,543 km (0.029 R)
• M10: 3,673,675 km (0.109 R)
• M11: 4,003,089 km (0.054 R)
• M12: 5,184,613 km (0.103 R)
• M13: 5,815,916 km (0.059 R)
• M14: 6,222,823 km (0.101 R)
• M15: 7,139,409 km (0.107 R)
• M16: 7,606,304 km (0.034 R)
• M17: 8,168,193 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.8

Radius: 9.2

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 3.53 AU - 4.21 AU

Year: 4841 Days

Day: 5.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,402,216 km

• M1: 114,442 km (0.099 R)
• M2: 689,347 km (0.113 R)
• M3: 1,050,476 km (0.115 R)
• M4: 1,538,016 km (0.106 R)
• M5: 1,841,400 km (0.062 R)
• M6: 5,080,792 km (0.059 R)
• M7: 8,424,305 km (0.056 R)
• M8: 10,445,971 km (0.054 R)
• M9: 11,991,167 km (0.091 R)
• M10: 13,294,164 km (0.096 R)
• M11: 14,382,339 km (0.077 R)
• M12: 15,797,535 km (0.06 R)
• M13: 16,179,159 km (0.07 R)
• M14: 17,476,622 km (0.068 R)
• M15: 20,085,908 km (0.078 R)
• M16: 21,985,651 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.6

Radius: 12.2

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 3.49 AU - 4.71 AU

Year: 5278 Days

Day: 9.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 61,402,216 km

• M1: 152,440 km (0.112 R)
• M2: 1,027,737 km (0.066 R)
• M3: 1,592,021 km (0.1 R)
• M4: 2,615,569 km (0.118 R)
• M5: 4,644,266 km (0.07 R)
• M6: 6,739,384 km (0.109 R)
• M7: 9,794,472 km (0.105 R)
• M8: 11,525,319 km (0.094 R)
• M9: 14,578,612 km (0.068 R)
• M10: 22,462,419 km (0.104 R)
• M11: 29,150,641 km (0.102 R)
• M12: 31,129,372 km (0.094 R)
• M13: 34,109,212 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 811.4

Radius: 7.6

Gravity: 14.05 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 6.18 AU - 9.02 AU

Year: 13322 Days

Day: 17 Hours

Environment

Temp: -223 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 61,402,216 km

• M1: 103,073 km (0.103 R)
• M2: 521,648 km (0.096 R)
• M3: 840,441 km (0.114 R)
• M4: 1,235,379 km (0.077 R)
• M5: 1,868,477 km (0.095 R)
• M6: 2,837,423 km (0.069 R)
• M7: 3,538,887 km (0.114 R)
• M8: 3,872,939 km (0.081 R)
• M9: 6,623,595 km (0.083 R)
• M10: 7,307,258 km (0.112 R)
• M11: 7,850,298 km (0.032 R)
• M12: 8,275,006 km (0.087 R)
• M13: 9,430,051 km (0.109 R)
• M14: 9,694,690 km (0.098 R)
• M15: 10,803,509 km (0.102 R)
• M16: 11,152,072 km (0.106 R)
• M17: 11,568,254 km (0.091 R)
• M18: 12,494,713 km (0.076 R)
• M19: 13,008,732 km (0.108 R)
• M20: 14,635,309 km (0.112 R)
• M21: 16,545,524 km (0.055 R)
• M22: 19,033,487 km (0.071 R)
• M23: 21,485,545 km (0.082 R)
• M24: 24,140,758 km (0.107 R)
• M25: 26,689,607 km (0.116 R)
• M26: 29,300,239 km (0.069 R)
• M27: 33,774,113 km (0.091 R)
• M28: 38,279,103 km (0.064 R)
• M29: 39,773,735 km (0.085 R)
• M30: 43,023,899 km (0.081 R)
• M31: 44,936,956 km (0.065 R)
• M32: 49,248,816 km (0.102 R)
• M33: 51,832,670 km (0.103 R)
• M34: 53,828,755 km (0.117 R)
• M35: 54,166,247 km (0.116 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: 277 - 16,814 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit