🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.51 AU - 0.63 AU

Year: 282 Days

Day: 45.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 5.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.61

Radius: 0.82

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.51 AU - 0.81 AU

Year: 352 Days

Day: 38.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 28.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 9,857,228 km

• M1: 291,267 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.9

Radius: 10.7

Gravity: 7.99 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.86 AU - 1.08 AU

Year: 627 Days

Day: 10.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 9,857,228 km

• M1: 133,142 km (0.117 R)
• M2: 490,531 km (0.109 R)
• M3: 978,520 km (0.084 R)
• M4: 1,519,017 km (0.032 R)
• M5: 1,859,352 km (0.045 R)
• M6: 2,554,084 km (0.114 R)
• M7: 3,374,030 km (0.104 R)
• M8: 4,392,493 km (0.079 R)
• M9: 4,768,582 km (0.08 R)
• M10: 5,400,633 km (0.09 R)
• M11: 6,127,529 km (0.116 R)
• M12: 7,659,261 km (0.092 R)
• M13: 8,085,167 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453.6

Radius: 12.5

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.41 AU - 1.85 AU

Year: 1365 Days

Day: 5.2 Hours

Environment

Temp: -185 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 9,857,228 km

• M1: 155,582 km (0.117 R)
• M2: 566,078 km (0.099 R)
• M3: 1,048,232 km (0.096 R)
• M4: 1,763,011 km (0.115 R)
• M5: 2,330,735 km (0.091 R)
• M6: 2,745,719 km (0.071 R)
• M7: 3,295,342 km (0.098 R)
• M8: 8,358,482 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 246.1

Radius: 12.5

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 2.01 AU - 2.65 AU

Year: 2333 Days

Day: 8.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 9,857,228 km

• M1: 156,629 km (0.095 R)
• M2: 558,000 km (0.082 R)
• M3: 965,953 km (0.078 R)
• M4: 1,575,266 km (0.07 R)
• M5: 2,232,150 km (0.078 R)
• M6: 3,422,350 km (0.106 R)
• M7: 4,238,407 km (0.084 R)
• M8: 4,819,146 km (0.11 R)
• M9: 6,493,894 km (0.052 R)
• M10: 7,450,722 km (0.081 R)
• M11: 8,270,817 km (0.112 R)
• M12: 10,025,900 km (0.084 R)
• M13: 11,836,184 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.8

Radius: 13.9

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 2.31 AU - 3.39 AU

Year: 3156 Days

Day: 12.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 9,857,228 km

• M1: 180,864 km (0.103 R)
• M2: 683,513 km (0.107 R)
• M3: 1,792,930 km (0.06 R)
• M4: 2,243,818 km (0.048 R)
• M5: 3,231,464 km (0.067 R)
• M6: 3,940,258 km (0.08 R)
• M7: 6,418,945 km (0.089 R)
• M8: 7,640,412 km (0.034 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 475 - 17,092 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit