🌌 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: 3.58

Radius: 1.67

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.45 AU - 0.57 AU

Year: 235 Days

Day: 28.7 Hours

Environment

Temp: -112 °C

Axial Tilt: 3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.49 AU - 0.57 AU

Year: 249 Days

Day: 28.8 Hours

Environment

Temp: -114 °C

Axial Tilt: 9.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,248,612 km

• M1: 37,848 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.9

Radius: 9

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.81 AU - 1.01 AU

Year: 561 Days

Day: 14.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,248,612 km

• M1: 111,899 km (0.082 R)
• M2: 405,709 km (0.117 R)
• M3: 984,653 km (0.119 R)
• M4: 1,313,021 km (0.085 R)
• M5: 1,672,504 km (0.119 R)
• M6: 1,953,449 km (0.106 R)
• M7: 2,859,264 km (0.093 R)
• M8: 3,187,482 km (0.055 R)
• M9: 3,624,008 km (0.074 R)
• M10: 4,022,088 km (0.032 R)
• M11: 4,326,221 km (0.089 R)
• M12: 4,688,397 km (0.113 R)
• M13: 5,238,768 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 757.7

Radius: 14.8

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.66 AU - 1.7 AU

Year: 1406 Days

Day: 12.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,248,612 km

• M1: 205,248 km (0.1 R)
• M2: 790,625 km (0.08 R)
• M3: 1,437,486 km (0.071 R)
• M4: 2,085,993 km (0.111 R)
• M5: 3,258,990 km (0.088 R)
• M6: 3,747,875 km (0.057 R)
• M7: 4,322,331 km (0.098 R)
• M8: 5,180,125 km (0.118 R)
• M9: 5,828,183 km (0.036 R)
• M10: 6,977,843 km (0.096 R)
• M11: 7,825,016 km (0.057 R)
• M12: 8,949,393 km (0.115 R)
• M13: 10,311,033 km (0.063 R)
• M14: 10,851,680 km (0.065 R)
• M15: 12,324,022 km (0.04 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.3

Radius: 11

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.88 AU - 4.44 AU

Year: 4521 Days

Day: 8.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,248,612 km

• M1: 137,181 km (0.112 R)
• M2: 488,437 km (0.117 R)
• M3: 1,452,147 km (0.12 R)
• M4: 1,832,275 km (0.103 R)
• M5: 2,898,608 km (0.11 R)
• M6: 3,847,508 km (0.07 R)
• M7: 4,822,587 km (0.069 R)
• M8: 6,292,984 km (0.08 R)
• M9: 6,763,320 km (0.078 R)
• M10: 7,225,428 km (0.071 R)
• M11: 8,704,053 km (0.065 R)
• M12: 9,552,722 km (0.08 R)
• M13: 10,095,911 km (0.066 R)
• M14: 10,659,447 km (0.09 R)
• M15: 11,329,047 km (0.063 R)
• M16: 12,205,391 km (0.109 R)
• M17: 13,032,219 km (0.119 R)
• M18: 14,192,051 km (0.11 R)
• M19: 18,084,737 km (0.114 R)
• M20: 18,977,088 km (0.081 R)
• M21: 21,238,111 km (0.066 R)
• M22: 22,433,547 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607.3

Radius: 12.7

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 4.5 AU - 7.36 AU

Year: 9324 Days

Day: 9.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 56,248,612 km

• M1: 158,125 km (0.064 R)
• M2: 630,555 km (0.091 R)
• M3: 1,619,846 km (0.102 R)
• M4: 2,358,111 km (0.11 R)
• M5: 3,045,364 km (0.102 R)
• M6: 3,862,767 km (0.097 R)
• M7: 4,337,441 km (0.096 R)
• M8: 5,730,795 km (0.071 R)
• M9: 6,938,948 km (0.08 R)
• M10: 7,807,064 km (0.051 R)
• M11: 9,475,380 km (0.074 R)
• M12: 10,644,786 km (0.113 R)
• M13: 12,128,348 km (0.033 R)
• M14: 14,605,839 km (0.072 R)
• M15: 20,227,427 km (0.114 R)
• M16: 21,340,585 km (0.084 R)
• M17: 21,830,069 km (0.096 R)
• M18: 22,327,033 km (0.106 R)
• M19: 23,171,962 km (0.114 R)
• M20: 24,390,586 km (0.047 R)
• M21: 26,019,707 km (0.105 R)
• M22: 26,672,403 km (0.1 R)
• M23: 27,145,282 km (0.12 R)
• M24: 36,297,380 km (0.099 R)
• M25: 38,178,424 km (0.088 R)
• M26: 39,142,881 km (0.062 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 307.8

Radius: 3.6

Gravity: 23.75 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 6.98 AU - 8.66 AU

Year: 14120 Days

Day: 22.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 56,248,612 km

• M1: 60,587 km (0.108 R)
• M2: 516,412 km (0.115 R)
• M3: 659,278 km (0.096 R)
• M4: 1,058,106 km (0.104 R)
• M5: 2,783,119 km (0.1 R)
• M6: 3,180,002 km (0.098 R)
• M7: 3,464,836 km (0.118 R)
• M8: 4,538,051 km (0.111 R)
• M9: 4,807,028 km (0.111 R)
• M10: 5,086,477 km (0.104 R)
• M11: 6,168,219 km (0.111 R)
• M12: 7,394,772 km (0.104 R)
• M13: 11,587,552 km (0.118 R)
• M14: 14,368,427 km (0.107 R)
• M15: 20,469,327 km (0.096 R)
• M16: 22,546,344 km (0.069 R)
• M17: 28,796,393 km (0.039 R)
• M18: 29,406,603 km (0.068 R)
• M19: 30,129,460 km (0.088 R)
• M20: 37,415,923 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 388.3

Radius: 6.1

Gravity: 10.44 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 7.47 AU - 10.15 AU

Year: 16884 Days

Day: 24.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 56,248,612 km

• M1: 75,846 km (0.106 R)
• M2: 455,077 km (0.085 R)
• M3: 964,158 km (0.059 R)
• M4: 1,669,662 km (0.06 R)
• M5: 1,882,240 km (0.102 R)
• M6: 2,076,269 km (0.089 R)
• M7: 2,696,651 km (0.073 R)
• M8: 3,231,763 km (0.11 R)
• M9: 6,725,023 km (0.09 R)
• M10: 7,267,315 km (0.073 R)
• M11: 9,782,953 km (0.101 R)
• M12: 13,015,015 km (0.115 R)
• M13: 17,428,451 km (0.117 R)
• M14: 18,933,256 km (0.032 R)
• M15: 21,748,838 km (0.074 R)
• M16: 26,938,388 km (0.109 R)
• M17: 35,308,688 km (0.101 R)
• M18: 43,107,674 km (0.119 R)
• M19: 51,820,403 km (0.112 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 491 - 15,838 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit