🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.2

Radius: 14.3

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.49 AU - 0.65 AU

Year: 292 Days

Day: 6.7 Hours

Environment

Temp: -139 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 60,999,106 km

• M1: 177,872 km (0.103 R)
• M2: 772,673 km (0.106 R)
• M3: 1,370,616 km (0.111 R)
• M4: 2,393,566 km (0.12 R)
• M5: 3,114,628 km (0.115 R)
• M6: 3,572,846 km (0.1 R)
• M7: 4,038,993 km (0.041 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.4

Radius: 8.2

Gravity: 5.97 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.58 AU - 0.62 AU

Year: 315 Days

Day: 13.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 60,999,106 km

• M1: 102,026 km (0.107 R)
• M2: 376,687 km (0.066 R)
• M3: 650,452 km (0.106 R)
• M4: 948,750 km (0.038 R)
• M5: 1,405,771 km (0.044 R)
• M6: 1,780,663 km (0.059 R)
• M7: 2,091,677 km (0.108 R)
• M8: 2,741,979 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.6

Radius: 11.5

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.87 AU - 1.03 AU

Year: 628 Days

Day: 14.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 60,999,106 km

• M1: 144,362 km (0.096 R)
• M2: 630,405 km (0.09 R)
• M3: 1,302,249 km (0.084 R)
• M4: 3,099,069 km (0.056 R)
• M5: 3,688,036 km (0.111 R)
• M6: 4,732,080 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 900.7

Radius: 14.2

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.15 AU - 1.27 AU

Year: 903 Days

Day: 10.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 60,999,106 km

• M1: 176,525 km (0.069 R)
• M2: 686,056 km (0.063 R)
• M3: 1,129,763 km (0.092 R)
• M4: 1,654,552 km (0.096 R)
• M5: 2,121,298 km (0.103 R)
• M6: 2,653,118 km (0.102 R)
• M7: 3,864,263 km (0.073 R)
• M8: 4,319,339 km (0.116 R)
• M9: 5,437,135 km (0.036 R)
• M10: 5,990,048 km (0.071 R)
• M11: 6,535,482 km (0.116 R)
• M12: 7,042,769 km (0.118 R)
• M13: 8,162,808 km (0.111 R)
• M14: 9,198,623 km (0.107 R)
• M15: 9,867,027 km (0.111 R)
• M16: 10,536,477 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.5

Radius: 12.9

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 2.49 AU - 3.89 AU

Year: 3864 Days

Day: 14.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,999,106 km

• M1: 160,519 km (0.099 R)
• M2: 1,278,463 km (0.094 R)
• M3: 2,278,376 km (0.115 R)
• M4: 2,685,731 km (0.042 R)
• M5: 3,213,811 km (0.059 R)
• M6: 7,321,469 km (0.05 R)
• M7: 8,584,075 km (0.113 R)
• M8: 10,336,315 km (0.098 R)
• M9: 11,228,816 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.2

Radius: 12.1

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 3.84 AU - 4.72 AU

Year: 6006 Days

Day: 9.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,999,106 km

• M1: 150,944 km (0.078 R)
• M2: 584,778 km (0.057 R)
• M3: 984,055 km (0.094 R)
• M4: 1,414,897 km (0.09 R)
• M5: 2,282,415 km (0.097 R)
• M6: 2,982,533 km (0.029 R)
• M7: 4,165,104 km (0.09 R)
• M8: 5,873,960 km (0.108 R)
• M9: 7,539,134 km (0.076 R)
• M10: 8,271,416 km (0.092 R)
• M11: 9,334,608 km (0.118 R)
• M12: 10,049,387 km (0.029 R)
• M13: 10,620,252 km (0.069 R)
• M14: 14,347,333 km (0.109 R)
• M15: 15,128,533 km (0.092 R)
• M16: 16,898,276 km (0.089 R)
• M17: 18,281,009 km (0.054 R)
• M18: 25,127,206 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 508.4

Radius: 3.8

Gravity: 35.21 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 5.6 AU - 7.02 AU

Year: 10751 Days

Day: 15.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 60,999,106 km

• M1: 47,572 km (0.107 R)
• M2: 210,185 km (0.067 R)
• M3: 462,557 km (0.088 R)
• M4: 586,424 km (0.106 R)
• M5: 913,295 km (0.057 R)
• M6: 2,766,813 km (0.088 R)
• M7: 3,182,994 km (0.111 R)
• M8: 4,770,826 km (0.058 R)
• M9: 4,892,449 km (0.082 R)
• M10: 5,432,647 km (0.087 R)
• M11: 5,768,494 km (0.112 R)
• M12: 6,189,612 km (0.1 R)
• M13: 6,481,477 km (0.08 R)
• M14: 6,975,150 km (0.082 R)
• M15: 7,331,343 km (0.106 R)
• M16: 7,741,241 km (0.061 R)
• M17: 10,374,164 km (0.113 R)
• M18: 12,832,356 km (0.113 R)
• M19: 14,993,297 km (0.051 R)
• M20: 15,320,468 km (0.105 R)
• M21: 16,607,757 km (0.075 R)
• M22: 17,746,197 km (0.087 R)
• M23: 20,656,474 km (0.078 R)
• M24: 21,143,265 km (0.057 R)
• M25: 25,408,899 km (0.082 R)
• M26: 25,967,647 km (0.114 R)
• M27: 27,889,232 km (0.072 R)
• M28: 28,086,551 km (0.081 R)
• M29: 29,698,020 km (0.101 R)
• M30: 34,219,167 km (0.088 R)
• M31: 39,549,638 km (0.059 R)
• M32: 41,314,294 km (0.064 R)
• M33: 41,957,116 km (0.111 R)
• M34: 42,999,365 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 763.5

Radius: 6.2

Gravity: 19.86 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 5.9 AU - 8.86 AU

Year: 13598 Days

Day: 15.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 60,999,106 km

• M1: 77,492 km (0.085 R)
• M2: 392,545 km (0.115 R)
• M3: 641,326 km (0.115 R)
• M4: 888,163 km (0.073 R)
• M5: 1,673,103 km (0.119 R)
• M6: 2,388,031 km (0.069 R)
• M7: 3,367,448 km (0.11 R)
• M8: 3,774,953 km (0.066 R)
• M9: 4,184,402 km (0.111 R)
• M10: 5,231,438 km (0.048 R)
• M11: 7,288,558 km (0.112 R)
• M12: 7,738,099 km (0.04 R)
• M13: 7,969,827 km (0.038 R)
• M14: 14,179,036 km (0.092 R)
• M15: 18,482,368 km (0.056 R)
• M16: 19,232,901 km (0.071 R)
• M17: 22,066,584 km (0.111 R)
• M18: 25,881,479 km (0.119 R)
• M19: 29,547,375 km (0.104 R)
• M20: 30,114,051 km (0.102 R)
• M21: 32,935,617 km (0.1 R)
• M22: 34,037,555 km (0.061 R)
• M23: 34,285,738 km (0.119 R)
• M24: 35,672,360 km (0.058 R)
• M25: 35,928,472 km (0.117 R)
• M26: 38,021,496 km (0.093 R)
• M27: 39,918,397 km (0.053 R)
• M28: 40,750,310 km (0.104 R)
• M29: 46,441,761 km (0.115 R)
• M30: 47,826,439 km (0.068 R)
• M31: 48,764,717 km (0.03 R)
• M32: 52,145,330 km (0.102 R)
• M33: 53,808,709 km (0.105 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 321 - 10,615 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit