🌌 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: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.4 AU - 0.64 AU

Year: 246 Days

Day: 24.1 Hours

Environment

Temp: -120 °C

Axial Tilt: 3.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453.7

Radius: 11.2

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.67 AU - 0.83 AU

Year: 426 Days

Day: 6.1 Hours

Environment

Temp: -144 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 75,474,768 km

• M1: 140,173 km (0.118 R)
• M2: 498,759 km (0.098 R)
• M3: 856,747 km (0.073 R)
• M4: 1,698,235 km (0.102 R)
• M5: 2,115,912 km (0.12 R)
• M6: 2,793,591 km (0.076 R)
• M7: 3,814,147 km (0.062 R)
• M8: 4,244,092 km (0.03 R)
• M9: 4,608,512 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 934.7

Radius: 13.1

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.94 AU - 1.28 AU

Year: 767 Days

Day: 8.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 75,474,768 km

• M1: 162,912 km (0.038 R)
• M2: 785,090 km (0.103 R)
• M3: 1,482,066 km (0.102 R)
• M4: 2,042,310 km (0.046 R)
• M5: 2,838,919 km (0.1 R)
• M6: 3,344,260 km (0.065 R)
• M7: 4,744,945 km (0.107 R)
• M8: 5,252,232 km (0.112 R)
• M9: 7,875,879 km (0.082 R)
• M10: 8,459,311 km (0.112 R)
• M11: 9,458,176 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.5

Radius: 11.3

Gravity: 5.99 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.37 AU - 1.93 AU

Year: 1390 Days

Day: 6.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 75,474,768 km

• M1: 140,772 km (0.085 R)
• M2: 589,864 km (0.102 R)
• M3: 1,258,118 km (0.108 R)
• M4: 1,872,217 km (0.103 R)
• M5: 2,460,287 km (0.07 R)
• M6: 2,881,105 km (0.111 R)
• M7: 3,443,444 km (0.119 R)
• M8: 3,835,540 km (0.074 R)
• M9: 4,404,909 km (0.085 R)
• M10: 4,788,777 km (0.101 R)
• M11: 5,780,312 km (0.117 R)
• M12: 7,005,668 km (0.097 R)
• M13: 7,611,839 km (0.091 R)
• M14: 8,454,823 km (0.068 R)
• M15: 9,234,677 km (0.108 R)
• M16: 10,868,734 km (0.078 R)
• M17: 12,047,715 km (0.118 R)
• M18: 12,687,545 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.4

Radius: 13.6

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 4 AU - 4.92 AU

Year: 6179 Days

Day: 14.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 75,474,768 km

• M1: 169,943 km (0.111 R)
• M2: 667,506 km (0.112 R)
• M3: 1,168,808 km (0.081 R)
• M4: 1,899,444 km (0.055 R)
• M5: 2,337,766 km (0.073 R)
• M6: 3,134,973 km (0.076 R)
• M7: 3,576,137 km (0.079 R)
• M8: 4,011,018 km (0.088 R)
• M9: 4,559,145 km (0.057 R)
• M10: 5,684,719 km (0.079 R)
• M11: 10,823,705 km (0.115 R)
• M12: 14,752,295 km (0.096 R)
• M13: 25,703,906 km (0.078 R)
• M14: 28,765,127 km (0.063 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 787.7

Radius: 7.9

Gravity: 12.62 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 8.49 AU - 9.99 AU

Year: 18425 Days

Day: 18 Hours

Environment

Temp: -237 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 75,474,768 km

• M1: 102,026 km (0.086 R)
• M2: 488,587 km (0.104 R)
• M3: 847,322 km (0.072 R)
• M4: 1,179,878 km (0.059 R)
• M5: 1,806,693 km (0.091 R)
• M6: 2,545,109 km (0.114 R)
• M7: 3,060,772 km (0.06 R)
• M8: 3,824,170 km (0.103 R)
• M9: 4,638,581 km (0.119 R)
• M10: 5,031,724 km (0.096 R)
• M11: 5,682,774 km (0.037 R)
• M12: 6,388,727 km (0.113 R)
• M13: 6,921,295 km (0.089 R)
• M14: 8,278,896 km (0.087 R)
• M15: 8,804,283 km (0.1 R)
• M16: 9,690,950 km (0.099 R)
• M17: 10,514,337 km (0.113 R)
• M18: 11,511,706 km (0.075 R)
• M19: 13,549,528 km (0.084 R)
• M20: 16,707,389 km (0.05 R)
• M21: 19,489,611 km (0.078 R)
• M22: 24,114,130 km (0.034 R)
• M23: 24,860,174 km (0.113 R)
• M24: 26,398,190 km (0.114 R)
• M25: 30,642,581 km (0.094 R)
• M26: 31,391,617 km (0.085 R)
• M27: 33,844,125 km (0.099 R)
• M28: 34,913,899 km (0.06 R)
• M29: 38,835,906 km (0.114 R)
• M30: 42,269,626 km (0.082 R)
• M31: 49,052,394 km (0.086 R)
• M32: 54,318,388 km (0.087 R)
• M33: 56,154,104 km (0.096 R)
• M34: 67,623,623 km (0.084 R)
• M35: 75,248,926 km (0.117 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 407 - 17,692 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit