🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.55 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 2.37 AU - 3.83 AU

Year: 2024 Days

Day: 21.3 Hours

Environment

Temp: -112 °C

Axial Tilt: 7.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 85,129,859 km

• M1: 121,623 km (0.106 R)

Planet 2 - Terrestrial

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.27

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.6 AU - 4 AU

Year: 2223 Days

Day: 39.1 Hours

Environment

Temp: -114 °C

Axial Tilt: 25.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 3.32 AU - 3.9 AU

Year: 2544 Days

Day: 28.2 Hours

Environment

Temp: -117 °C

Axial Tilt: 32.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 3.25 AU - 4.03 AU

Year: 2575 Days

Day: 21.5 Hours

Environment

Temp: -119 °C

Axial Tilt: 37.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 85,129,859 km

• M1: 39,793 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.1

Radius: 11.1

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 5.5 AU - 5.64 AU

Year: 4875 Days

Day: 5.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 85,129,859 km

• M1: 144,212 km (0.028 R)
• M2: 522,246 km (0.12 R)
• M3: 926,908 km (0.113 R)
• M4: 1,525,898 km (0.104 R)
• M5: 1,920,837 km (0.043 R)
• M6: 2,575,178 km (0.108 R)
• M7: 3,141,705 km (0.026 R)
• M8: 3,520,487 km (0.116 R)
• M9: 5,403,625 km (0.117 R)
• M10: 6,004,559 km (0.071 R)
• M11: 6,620,753 km (0.097 R)
• M12: 7,979,251 km (0.065 R)
• M13: 12,089,602 km (0.045 R)
• M14: 12,890,101 km (0.059 R)
• M15: 13,536,812 km (0.032 R)
• M16: 14,995,541 km (0.112 R)
• M17: 16,502,740 km (0.118 R)
• M18: 17,881,134 km (0.067 R)
• M19: 18,511,241 km (0.032 R)
• M20: 19,695,008 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 595.4

Radius: 14.5

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 5.23 AU - 6.71 AU

Year: 5410 Days

Day: 10.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 85,129,859 km

• M1: 180,415 km (0.098 R)
• M2: 1,132,905 km (0.111 R)
• M3: 1,709,604 km (0.112 R)
• M4: 2,949,771 km (0.097 R)
• M5: 4,624,220 km (0.088 R)
• M6: 5,482,164 km (0.109 R)
• M7: 7,910,436 km (0.092 R)
• M8: 9,219,717 km (0.089 R)
• M9: 12,216,761 km (0.104 R)
• M10: 13,432,991 km (0.094 R)
• M11: 14,287,793 km (0.075 R)
• M12: 18,655,453 km (0.101 R)
• M13: 29,740,805 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129.1

Radius: 12.8

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 6.86 AU - 9.52 AU

Year: 8692 Days

Day: 5.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 85,129,859 km

• M1: 160,070 km (0.078 R)
• M2: 571,613 km (0.064 R)
• M3: 2,234,693 km (0.1 R)
• M4: 3,840,925 km (0.089 R)
• M5: 5,944,421 km (0.103 R)
• M6: 6,771,099 km (0.043 R)
• M7: 8,508,528 km (0.109 R)
• M8: 9,442,318 km (0.079 R)
• M9: 16,480,449 km (0.11 R)
• M10: 17,574,608 km (0.12 R)
• M11: 20,164,447 km (0.094 R)
• M12: 23,927,731 km (0.07 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 972.4

Radius: 7.9

Gravity: 15.58 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 12.59 AU - 15.83 AU

Year: 19865 Days

Day: 15.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 85,129,859 km

• M1: 99,333 km (0.111 R)
• M2: 852,409 km (0.104 R)
• M3: 1,187,807 km (0.1 R)
• M4: 1,790,537 km (0.079 R)
• M5: 2,937,205 km (0.1 R)
• M6: 3,440,302 km (0.081 R)
• M7: 5,873,362 km (0.11 R)
• M8: 7,194,461 km (0.11 R)
• M9: 8,321,082 km (0.048 R)
• M10: 9,385,022 km (0.08 R)
• M11: 9,798,960 km (0.035 R)
• M12: 13,119,135 km (0.088 R)
• M13: 13,562,244 km (0.079 R)
• M14: 15,598,121 km (0.107 R)
• M15: 17,384,918 km (0.048 R)
• M16: 18,190,951 km (0.051 R)
• M17: 22,493,386 km (0.102 R)
• M18: 24,544,523 km (0.116 R)
• M19: 26,717,133 km (0.069 R)
• M20: 28,890,640 km (0.111 R)
• M21: 33,313,052 km (0.107 R)
• M22: 41,231,118 km (0.05 R)
• M23: 44,953,562 km (0.094 R)
• M24: 45,287,464 km (0.085 R)
• M25: 48,018,673 km (0.045 R)
• M26: 55,323,088 km (0.051 R)
• M27: 57,650,681 km (0.12 R)
• M28: 74,392,328 km (0.036 R)
• M29: 79,640,371 km (0.107 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 174 - 10,573 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit