🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

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: 3.8

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.52 AU - 0.7 AU

Year: 303 Days

Day: 20.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 14.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.06

Radius: 1.56

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.58 AU - 0.68 AU

Year: 318 Days

Day: 37.2 Hours

Environment

Temp: -133 °C

Axial Tilt: 9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.8

Radius: 14.4

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.18 AU - 1.4 AU

Year: 932 Days

Day: 13.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,427,607 km

• M1: 180,415 km (0.113 R)
• M2: 663,167 km (0.056 R)
• M3: 1,123,181 km (0.109 R)
• M4: 1,625,680 km (0.065 R)
• M5: 2,219,883 km (0.113 R)
• M6: 2,718,193 km (0.091 R)
• M7: 3,212,315 km (0.065 R)
• M8: 5,034,567 km (0.101 R)
• M9: 5,966,412 km (0.116 R)
• M10: 7,731,966 km (0.114 R)
• M11: 8,298,792 km (0.042 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.3

Radius: 13

Gravity: 0.06 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.21 AU - 1.49 AU

Year: 997 Days

Day: 7.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 72,427,607 km

• M1: 163,660 km (0.047 R)
• M2: 1,432,549 km (0.081 R)
• M3: 1,921,884 km (0.062 R)
• M4: 2,445,626 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.7

Radius: 11.8

Gravity: 6.96 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.25 AU - 2.03 AU

Year: 1335 Days

Day: 5.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,427,607 km

• M1: 146,756 km (0.077 R)
• M2: 660,475 km (0.105 R)
• M3: 1,057,507 km (0.032 R)
• M4: 1,563,896 km (0.091 R)
• M5: 2,069,537 km (0.109 R)
• M6: 2,499,780 km (0.116 R)
• M7: 2,903,994 km (0.11 R)
• M8: 3,462,892 km (0.119 R)
• M9: 3,845,862 km (0.089 R)
• M10: 4,445,002 km (0.109 R)
• M11: 6,087,586 km (0.07 R)
• M12: 6,980,985 km (0.07 R)
• M13: 8,541,889 km (0.106 R)
• M14: 8,966,148 km (0.105 R)
• M15: 9,436,334 km (0.034 R)
• M16: 10,494,440 km (0.079 R)
• M17: 11,230,761 km (0.099 R)
• M18: 12,001,190 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 60.8

Radius: 13.8

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.93 AU - 4.88 AU

Year: 4897 Days

Day: 12.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 72,427,607 km

• M1: 172,636 km (0.069 R)
• M2: 677,978 km (0.106 R)
• M3: 1,334,862 km (0.106 R)
• M4: 3,739,498 km (0.088 R)
• M5: 7,777,892 km (0.087 R)
• M6: 9,762,308 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 438

Radius: 4.8

Gravity: 19.01 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 8.46 AU - 13.56 AU

Year: 23228 Days

Day: 23.4 Hours

Environment

Temp: -241 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 72,427,607 km

• M1: 59,839 km (0.025 R)
• M2: 421,567 km (0.101 R)
• M3: 840,890 km (0.074 R)
• M4: 1,331,571 km (0.048 R)
• M5: 1,581,249 km (0.074 R)
• M6: 2,112,920 km (0.087 R)
• M7: 2,543,912 km (0.116 R)
• M8: 2,829,345 km (0.1 R)
• M9: 3,215,905 km (0.06 R)
• M10: 3,636,874 km (0.09 R)
• M11: 5,894,156 km (0.108 R)
• M12: 6,566,748 km (0.088 R)
• M13: 9,324,585 km (0.097 R)
• M14: 10,235,187 km (0.078 R)
• M15: 11,646,045 km (0.102 R)
• M16: 13,391,253 km (0.111 R)
• M17: 15,535,440 km (0.103 R)
• M18: 18,501,965 km (0.078 R)
• M19: 20,025,620 km (0.108 R)
• M20: 20,395,874 km (0.045 R)
• M21: 25,309,865 km (0.065 R)
• M22: 25,634,044 km (0.117 R)
• M23: 26,070,571 km (0.114 R)
• M24: 26,734,635 km (0.116 R)
• M25: 28,096,574 km (0.084 R)
• M26: 37,390,641 km (0.111 R)
• M27: 40,547,755 km (0.105 R)
• M28: 40,843,360 km (0.107 R)
• M29: 43,259,515 km (0.115 R)
• M30: 44,033,684 km (0.093 R)
• M31: 45,133,079 km (0.09 R)
• M32: 46,897,287 km (0.113 R)
• M33: 57,521,428 km (0.111 R)
• M34: 58,081,822 km (0.06 R)
• M35: 59,975,731 km (0.049 R)
• M36: 61,910,331 km (0.094 R)
• M37: 62,893,189 km (0.083 R)
• M38: 69,641,848 km (0.057 R)
• M39: 71,562,685 km (0.117 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 281 - 10,638 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit