🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.22

Radius: 0.55

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.53 AU - 0.79 AU

Year: 352 Days

Day: 22.7 Hours

Environment

Temp: -126 °C

Axial Tilt: 25.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.5

Radius: 9

Gravity: 8.45 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.01 AU - 1.29 AU

Year: 809 Days

Day: 10.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 22,087,096 km

• M1: 112,049 km (0.101 R)
• M2: 478,564 km (0.057 R)
• M3: 866,022 km (0.07 R)
• M4: 1,875,060 km (0.111 R)
• M5: 2,487,214 km (0.09 R)
• M6: 6,247,656 km (0.062 R)
• M7: 6,870,881 km (0.083 R)
• M8: 7,464,186 km (0.115 R)
• M9: 8,066,616 km (0.077 R)
• M10: 8,392,441 km (0.049 R)
• M11: 8,884,468 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566

Radius: 14.9

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.18 AU - 1.92 AU

Year: 1266 Days

Day: 14.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 22,087,096 km

• M1: 185,352 km (0.116 R)
• M2: 718,818 km (0.088 R)
• M3: 1,299,557 km (0.08 R)
• M4: 1,846,038 km (0.087 R)
• M5: 2,908,631 km (0.086 R)
• M6: 3,692,674 km (0.099 R)
• M7: 4,489,133 km (0.116 R)
• M8: 5,140,183 km (0.091 R)
• M9: 6,069,634 km (0.052 R)
• M10: 6,820,317 km (0.06 R)
• M11: 7,786,868 km (0.112 R)
• M12: 8,646,757 km (0.068 R)
• M13: 9,391,156 km (0.116 R)
• M14: 10,365,936 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.8

Radius: 8

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.73 AU - 2.61 AU

Year: 2097 Days

Day: 10.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 22,087,096 km

• M1: 99,632 km (0.104 R)
• M2: 407,804 km (0.109 R)
• M3: 711,936 km (0.08 R)
• M4: 1,568,833 km (0.053 R)
• M5: 2,420,793 km (0.03 R)
• M6: 2,772,198 km (0.109 R)
• M7: 3,293,547 km (0.064 R)
• M8: 3,564,468 km (0.04 R)
• M9: 4,391,894 km (0.105 R)
• M10: 5,151,552 km (0.113 R)
• M11: 5,977,033 km (0.084 R)
• M12: 6,501,075 km (0.037 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.9

Radius: 8

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.77 AU - 2.83 AU

Year: 3074 Days

Day: 6 Hours

Environment

Temp: -204 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 22,087,096 km

• M1: 101,278 km (0.087 R)
• M2: 476,619 km (0.112 R)
• M3: 829,520 km (0.12 R)
• M4: 1,216,530 km (0.102 R)
• M5: 1,533,378 km (0.069 R)
• M6: 1,943,426 km (0.112 R)
• M7: 2,249,054 km (0.092 R)
• M8: 3,640,763 km (0.098 R)
• M9: 3,995,610 km (0.094 R)
• M10: 4,339,685 km (0.085 R)
• M11: 7,354,082 km (0.083 R)
• M12: 9,893,057 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.1

Radius: 9.1

Gravity: 6.37 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 3.77 AU - 5.35 AU

Year: 6388 Days

Day: 8.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 22,087,096 km

• M1: 113,246 km (0.119 R)
• M2: 401,072 km (0.058 R)
• M3: 710,590 km (0.103 R)
• M4: 1,481,468 km (0.098 R)
• M5: 2,334,475 km (0.115 R)
• M6: 2,859,862 km (0.094 R)
• M7: 3,840,028 km (0.06 R)
• M8: 5,573,867 km (0.114 R)
• M9: 5,876,055 km (0.057 R)
• M10: 6,917,555 km (0.089 R)
• M11: 8,039,390 km (0.071 R)
• M12: 8,425,950 km (0.079 R)
• M13: 10,411,862 km (0.088 R)
• M14: 13,004,244 km (0.059 R)
• M15: 13,646,019 km (0.065 R)
• M16: 14,196,838 km (0.057 R)
• M17: 14,877,209 km (0.101 R)
• M18: 15,519,881 km (0.064 R)
• M19: 16,059,481 km (0.03 R)
• M20: 16,735,663 km (0.077 R)
• M21: 17,559,349 km (0.092 R)
• M22: 18,277,120 km (0.112 R)
• M23: 18,609,676 km (0.067 R)
• M24: 22,617,104 km (0.077 R)
• M25: 22,923,630 km (0.098 R)
• M26: 24,740,197 km (0.09 R)
• M27: 26,311,722 km (0.084 R)
• M28: 28,124,848 km (0.033 R)
• M29: 28,836,934 km (0.103 R)
• M30: 30,297,159 km (0.09 R)
• M31: 31,710,410 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.4

Radius: 10.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 4.3 AU - 6.08 AU

Year: 7756 Days

Day: 13.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 121 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 22,087,096 km

• M1: 137,331 km (0.067 R)
• M2: 512,522 km (0.103 R)
• M3: 1,142,778 km (0.075 R)
• M4: 1,967,511 km (0.096 R)
• M5: 4,352,400 km (0.111 R)
• M6: 5,624,431 km (0.079 R)
• M7: 6,332,478 km (0.104 R)
• M8: 7,222,136 km (0.077 R)
• M9: 10,432,956 km (0.106 R)
• M10: 11,544,168 km (0.082 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 239 - 14,778 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit