🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.3

Radius: 8.1

Gravity: 10.98 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.65 AU - 1.05 AU

Year: 532 Days

Day: 11.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 36,821,264 km

• M1: 100,829 km (0.086 R)
• M2: 381,923 km (0.054 R)
• M3: 770,279 km (0.078 R)
• M4: 1,094,458 km (0.114 R)
• M5: 1,495,231 km (0.106 R)
• M6: 1,798,466 km (0.092 R)
• M7: 2,198,191 km (0.098 R)
• M8: 2,613,924 km (0.112 R)
• M9: 3,273,501 km (0.072 R)
• M10: 3,603,214 km (0.083 R)
• M11: 3,997,106 km (0.094 R)
• M12: 4,968,444 km (0.106 R)
• M13: 5,353,509 km (0.115 R)
• M14: 6,809,396 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.9

Radius: 13.8

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1 AU - 1.16 AU

Year: 761 Days

Day: 14.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,821,264 km

• M1: 171,589 km (0.066 R)
• M2: 694,583 km (0.055 R)
• M3: 1,333,216 km (0.06 R)
• M4: 1,862,045 km (0.055 R)
• M5: 2,311,437 km (0.069 R)
• M6: 3,489,969 km (0.04 R)
• M7: 4,967,547 km (0.034 R)
• M8: 5,712,993 km (0.068 R)
• M9: 6,163,133 km (0.078 R)
• M10: 6,937,302 km (0.035 R)
• M11: 8,085,615 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.1

Radius: 12.9

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.32 AU - 1.68 AU

Year: 1246 Days

Day: 5.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,821,264 km

• M1: 160,519 km (0.053 R)
• M2: 650,601 km (0.069 R)
• M3: 1,159,832 km (0.068 R)
• M4: 1,778,719 km (0.119 R)
• M5: 2,304,555 km (0.12 R)
• M6: 2,985,525 km (0.045 R)
• M7: 4,050,063 km (0.106 R)
• M8: 4,860,136 km (0.077 R)
• M9: 5,412,152 km (0.101 R)
• M10: 8,155,478 km (0.116 R)
• M11: 10,340,654 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235.3

Radius: 11.5

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.35 AU - 1.67 AU

Year: 1259 Days

Day: 6.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,821,264 km

• M1: 143,464 km (0.038 R)
• M2: 501,452 km (0.067 R)
• M3: 965,505 km (0.04 R)
• M4: 1,369,868 km (0.052 R)
• M5: 2,176,051 km (0.07 R)
• M6: 2,714,453 km (0.065 R)
• M7: 3,569,854 km (0.108 R)
• M8: 4,121,421 km (0.096 R)
• M9: 4,612,850 km (0.056 R)
• M10: 5,286,639 km (0.102 R)
• M11: 5,771,336 km (0.1 R)
• M12: 7,919,113 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.4

Radius: 8.6

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.5 AU - 2.1 AU

Year: 1638 Days

Day: 5.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 36,821,264 km

• M1: 106,962 km (0.109 R)
• M2: 580,440 km (0.088 R)
• M3: 1,116,150 km (0.099 R)
• M4: 1,772,884 km (0.118 R)
• M5: 2,134,911 km (0.114 R)
• M6: 2,665,984 km (0.082 R)
• M7: 3,396,470 km (0.096 R)
• M8: 3,785,425 km (0.108 R)
• M9: 4,055,598 km (0.089 R)
• M10: 4,338,787 km (0.036 R)
• M11: 5,095,603 km (0.095 R)
• M12: 5,566,088 km (0.058 R)
• M13: 6,347,886 km (0.103 R)
• M14: 7,273,299 km (0.087 R)
• M15: 7,768,468 km (0.118 R)
• M16: 10,158,144 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721

Radius: 8.2

Gravity: 10.72 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 2.77 AU - 4.11 AU

Year: 4327 Days

Day: 13.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 36,821,264 km

• M1: 102,923 km (0.099 R)
• M2: 462,706 km (0.027 R)
• M3: 1,012,778 km (0.039 R)
• M4: 1,324,540 km (0.095 R)
• M5: 2,737,342 km (0.091 R)
• M6: 3,555,343 km (0.093 R)
• M7: 4,239,753 km (0.094 R)
• M8: 4,905,015 km (0.098 R)
• M9: 6,567,047 km (0.1 R)
• M10: 8,879,830 km (0.109 R)
• M11: 9,232,433 km (0.105 R)
• M12: 9,594,310 km (0.088 R)
• M13: 12,939,468 km (0.078 R)
• M14: 14,817,968 km (0.064 R)
• M15: 16,575,294 km (0.12 R)
• M16: 16,930,889 km (0.061 R)
• M17: 19,236,790 km (0.059 R)
• M18: 20,027,714 km (0.069 R)
• M19: 23,408,626 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 67.5

Radius: 7.3

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 9.81 AU - 10.19 AU

Year: 21448 Days

Day: 23.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,821,264 km

• M1: 91,105 km (0.043 R)
• M2: 350,807 km (0.054 R)
• M3: 829,969 km (0.076 R)
• M4: 2,320,263 km (0.118 R)
• M5: 7,788,963 km (0.108 R)
• M6: 8,593,051 km (0.062 R)
• M7: 9,992,839 km (0.072 R)
• M8: 16,794,156 km (0.083 R)
• M9: 17,122,224 km (0.087 R)
• M10: 20,047,910 km (0.109 R)
• M11: 20,715,565 km (0.073 R)
• M12: 22,568,335 km (0.089 R)
• M13: 30,307,332 km (0.07 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 153 - 17,300 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit