🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.53 AU - 0.69 AU

Year: 313 Days

Day: 25.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 9.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.3

Radius: 8.7

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.04 AU - 1.1 AU

Year: 726 Days

Day: 9.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 62,833,873 km

• M1: 108,309 km (0.086 R)
• M2: 447,298 km (0.059 R)
• M3: 753,076 km (0.081 R)
• M4: 1,086,081 km (0.108 R)
• M5: 1,855,612 km (0.104 R)
• M6: 2,289,296 km (0.052 R)
• M7: 2,778,930 km (0.085 R)
• M8: 3,093,834 km (0.053 R)
• M9: 3,396,470 km (0.062 R)
• M10: 4,483,448 km (0.089 R)
• M11: 4,918,628 km (0.108 R)
• M12: 5,447,906 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.8

Radius: 10.7

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.05 AU - 1.73 AU

Year: 1075 Days

Day: 9.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,833,873 km

• M1: 133,142 km (0.063 R)
• M2: 516,113 km (0.087 R)
• M3: 960,269 km (0.111 R)
• M4: 1,744,760 km (0.118 R)
• M5: 2,300,516 km (0.11 R)
• M6: 2,647,583 km (0.11 R)
• M7: 3,334,237 km (0.091 R)
• M8: 3,699,705 km (0.096 R)
• M9: 4,268,626 km (0.068 R)
• M10: 4,684,957 km (0.088 R)
• M11: 5,299,654 km (0.08 R)
• M12: 5,763,108 km (0.11 R)
• M13: 6,409,970 km (0.092 R)
• M14: 7,062,366 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.7

Radius: 9.4

Gravity: 7.96 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.35 AU - 1.97 AU

Year: 1403 Days

Day: 14.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,833,873 km

• M1: 117,135 km (0.036 R)
• M2: 533,017 km (0.111 R)
• M3: 957,726 km (0.104 R)
• M4: 1,734,737 km (0.073 R)
• M5: 2,177,547 km (0.064 R)
• M6: 2,912,371 km (0.056 R)
• M7: 3,446,436 km (0.065 R)
• M8: 4,044,378 km (0.102 R)
• M9: 4,651,895 km (0.025 R)
• M10: 5,404,073 km (0.084 R)
• M11: 6,002,465 km (0.111 R)
• M12: 6,768,256 km (0.088 R)
• M13: 7,097,372 km (0.092 R)
• M14: 7,463,737 km (0.108 R)
• M15: 8,009,021 km (0.087 R)
• M16: 8,320,185 km (0.093 R)
• M17: 8,698,219 km (0.089 R)
• M18: 9,426,461 km (0.095 R)
• M19: 10,393,312 km (0.09 R)
• M20: 10,935,305 km (0.086 R)
• M21: 11,354,030 km (0.093 R)
• M22: 11,819,578 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 139.9

Radius: 10.5

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.7 AU - 2.46 AU

Year: 1968 Days

Day: 8.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,833,873 km

• M1: 131,796 km (0.089 R)
• M2: 465,997 km (0.091 R)
• M3: 843,582 km (0.089 R)
• M4: 1,238,820 km (0.12 R)
• M5: 1,689,259 km (0.074 R)
• M6: 2,094,819 km (0.082 R)
• M7: 2,565,304 km (0.107 R)
• M8: 3,559,233 km (0.113 R)
• M9: 4,935,383 km (0.119 R)
• M10: 5,286,340 km (0.099 R)
• M11: 7,561,574 km (0.11 R)
• M12: 8,054,649 km (0.118 R)
• M13: 8,780,946 km (0.096 R)
• M14: 9,160,027 km (0.115 R)
• M15: 9,493,780 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.4

Radius: 10

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 2 AU - 2.72 AU

Year: 2378 Days

Day: 10.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 62,833,873 km

• M1: 124,316 km (0.095 R)
• M2: 474,973 km (0.117 R)
• M3: 847,173 km (0.12 R)
• M4: 1,180,028 km (0.074 R)
• M5: 1,499,120 km (0.074 R)
• M6: 2,159,445 km (0.11 R)
• M7: 2,645,040 km (0.08 R)
• M8: 3,078,724 km (0.065 R)
• M9: 4,108,406 km (0.092 R)
• M10: 4,733,426 km (0.102 R)
• M11: 6,574,078 km (0.113 R)
• M12: 7,457,304 km (0.111 R)
• M13: 8,693,431 km (0.069 R)
• M14: 10,095,463 km (0.093 R)
• M15: 10,760,724 km (0.076 R)
• M16: 11,870,441 km (0.108 R)
• M17: 12,217,658 km (0.04 R)
• M18: 12,932,886 km (0.082 R)
• M19: 13,759,863 km (0.08 R)
• M20: 14,186,366 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 395.3

Radius: 3.7

Gravity: 28.88 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 7.71 AU - 11.65 AU

Year: 19757 Days

Day: 20.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 62,833,873 km

• M1: 49,517 km (0.087 R)
• M2: 211,083 km (0.035 R)
• M3: 400,174 km (0.119 R)
• M4: 586,872 km (0.114 R)
• M5: 742,305 km (0.096 R)
• M6: 1,027,139 km (0.03 R)
• M7: 1,530,386 km (0.048 R)
• M8: 1,657,993 km (0.1 R)
• M9: 2,784,465 km (0.09 R)
• M10: 2,951,117 km (0.089 R)
• M11: 3,799,188 km (0.119 R)
• M12: 3,974,666 km (0.051 R)
• M13: 4,094,643 km (0.084 R)
• M14: 4,373,344 km (0.069 R)
• M15: 5,003,301 km (0.092 R)
• M16: 6,318,416 km (0.065 R)
• M17: 7,754,106 km (0.102 R)
• M18: 12,680,813 km (0.042 R)
• M19: 13,272,024 km (0.054 R)
• M20: 21,033,161 km (0.106 R)
• M21: 21,582,186 km (0.045 R)
• M22: 26,640,688 km (0.114 R)
• M23: 29,272,713 km (0.106 R)
• M24: 35,817,620 km (0.1 R)
• M25: 42,688,500 km (0.044 R)
• M26: 46,585,525 km (0.112 R)
• M27: 51,864,385 km (0.075 R)
• M28: 52,530,245 km (0.058 R)
• M29: 58,062,674 km (0.095 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: 539 - 12,618 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit