🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248

Radius: 8.7

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.64 AU - 0.8 AU

Year: 422 Days

Day: 9.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,275,401 km

• M1: 108,159 km (0.076 R)
• M2: 404,662 km (0.084 R)
• M3: 886,517 km (0.081 R)
• M4: 1,478,925 km (0.099 R)
• M5: 1,795,174 km (0.116 R)
• M6: 2,103,047 km (0.117 R)
• M7: 2,514,291 km (0.051 R)
• M8: 2,921,198 km (0.097 R)
• M9: 3,641,063 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.9

Radius: 11.5

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.74 AU - 0.88 AU

Year: 503 Days

Day: 10.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 62,275,401 km

• M1: 145,260 km (0.114 R)
• M2: 580,889 km (0.105 R)
• M3: 1,377,647 km (0.106 R)
• M4: 2,058,616 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.3

Radius: 10.3

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.06 AU - 1.32 AU

Year: 896 Days

Day: 8.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,275,401 km

• M1: 128,205 km (0.088 R)
• M2: 719,117 km (0.046 R)
• M3: 1,140,833 km (0.12 R)
• M4: 1,794,277 km (0.106 R)
• M5: 2,132,667 km (0.104 R)
• M6: 2,880,507 km (0.085 R)
• M7: 3,309,105 km (0.1 R)
• M8: 3,751,017 km (0.115 R)
• M9: 4,247,832 km (0.093 R)
• M10: 4,686,602 km (0.118 R)
• M11: 5,119,688 km (0.063 R)
• M12: 6,476,092 km (0.118 R)
• M13: 7,746,776 km (0.087 R)
• M14: 8,328,861 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 958.3

Radius: 12.5

Gravity: 6.13 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 2.12 AU - 2.6 AU

Year: 2503 Days

Day: 8.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 62,275,401 km

• M1: 172,935 km (0.115 R)
• M2: 761,004 km (0.119 R)
• M3: 1,269,936 km (0.082 R)
• M4: 2,239,480 km (0.113 R)
• M5: 3,178,805 km (0.032 R)
• M6: 3,595,435 km (0.115 R)
• M7: 4,952,438 km (0.118 R)
• M8: 5,617,998 km (0.09 R)
• M9: 7,560,676 km (0.109 R)
• M10: 8,410,691 km (0.096 R)
• M11: 10,223,070 km (0.1 R)
• M12: 11,428,380 km (0.089 R)
• M13: 13,225,948 km (0.116 R)
• M14: 14,705,171 km (0.077 R)
• M15: 17,708,648 km (0.102 R)
• M16: 18,447,063 km (0.097 R)
• M17: 20,599,328 km (0.033 R)
• M18: 21,036,453 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.4

Radius: 13.9

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.21 AU - 2.89 AU

Year: 2811 Days

Day: 6.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 62,275,401 km

• M1: 172,935 km (0.04 R)
• M2: 711,936 km (0.088 R)
• M3: 2,506,662 km (0.099 R)
• M4: 6,234,940 km (0.104 R)
• M5: 7,350,940 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.5

Radius: 11.4

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2.32 AU - 3.5 AU

Year: 3426 Days

Day: 7.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 62,275,401 km

• M1: 141,819 km (0.116 R)
• M2: 568,322 km (0.062 R)
• M3: 1,163,572 km (0.1 R)
• M4: 1,542,204 km (0.117 R)
• M5: 2,212,403 km (0.119 R)
• M6: 3,537,092 km (0.107 R)
• M7: 4,620,629 km (0.102 R)
• M8: 5,450,000 km (0.092 R)
• M9: 6,670,719 km (0.116 R)
• M10: 9,165,114 km (0.1 R)
• M11: 10,288,893 km (0.108 R)
• M12: 10,998,435 km (0.119 R)
• M13: 11,700,199 km (0.07 R)
• M14: 12,390,294 km (0.076 R)
• M15: 13,941,325 km (0.083 R)
• M16: 14,810,189 km (0.092 R)
• M17: 16,106,455 km (0.056 R)
• M18: 16,807,770 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749.3

Radius: 8.6

Gravity: 10.13 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 4.73 AU - 5.93 AU

Year: 8494 Days

Day: 10.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,275,401 km

• M1: 107,561 km (0.1 R)
• M2: 857,046 km (0.101 R)
• M3: 1,501,215 km (0.07 R)
• M4: 1,798,166 km (0.038 R)
• M5: 2,608,987 km (0.104 R)
• M6: 2,913,867 km (0.091 R)
• M7: 3,219,795 km (0.115 R)
• M8: 4,214,621 km (0.114 R)
• M9: 8,290,265 km (0.045 R)
• M10: 8,639,726 km (0.12 R)
• M11: 11,745,078 km (0.058 R)
• M12: 12,695,773 km (0.069 R)
• M13: 13,043,289 km (0.086 R)
• M14: 15,328,546 km (0.034 R)
• M15: 16,123,659 km (0.106 R)
• M16: 20,201,846 km (0.094 R)
• M17: 21,400,873 km (0.076 R)
• M18: 29,205,095 km (0.069 R)
• M19: 37,516,304 km (0.056 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 597.7

Radius: 4.3

Gravity: 32.33 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 7.39 AU - 8.77 AU

Year: 15854 Days

Day: 15 Hours

Environment

Temp: -226 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 62,275,401 km

• M1: 71,358 km (0.117 R)
• M2: 213,476 km (0.088 R)
• M3: 370,105 km (0.034 R)
• M4: 671,844 km (0.079 R)
• M5: 1,172,548 km (0.093 R)
• M6: 1,376,001 km (0.116 R)
• M7: 1,853,817 km (0.037 R)
• M8: 2,229,158 km (0.12 R)
• M9: 2,520,724 km (0.084 R)
• M10: 3,179,703 km (0.045 R)
• M11: 4,186,945 km (0.117 R)
• M12: 5,246,098 km (0.109 R)
• M13: 6,554,930 km (0.055 R)
• M14: 8,954,629 km (0.119 R)
• M15: 10,922,141 km (0.106 R)
• M16: 11,157,159 km (0.083 R)
• M17: 11,335,629 km (0.112 R)
• M18: 16,672,383 km (0.118 R)
• M19: 16,983,996 km (0.112 R)
• M20: 21,395,637 km (0.108 R)
• M21: 22,701,926 km (0.08 R)
• M22: 23,764,819 km (0.1 R)
• M23: 23,961,689 km (0.06 R)
• M24: 25,267,230 km (0.065 R)
• M25: 28,238,992 km (0.092 R)
• M26: 34,110,259 km (0.062 R)
• M27: 34,991,989 km (0.106 R)
• M28: 35,759,875 km (0.09 R)
• M29: 39,354,562 km (0.115 R)
• M30: 42,311,514 km (0.038 R)
• M31: 43,770,243 km (0.098 R)
• M32: 45,413,276 km (0.103 R)
• M33: 49,619,370 km (0.095 R)
• M34: 51,734,085 km (0.092 R)
• M35: 52,230,451 km (0.089 R)
• M36: 57,370,335 km (0.112 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: 483 - 15,951 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit