🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.18

Radius: 1.07

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.63 AU - 0.65 AU

Year: 336 Days

Day: 18.9 Hours

Environment

Temp: -126 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,068,213 km

• M1: 25,132 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.3

Radius: 14

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.71 AU - 0.73 AU

Year: 401 Days

Day: 5.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,068,213 km

• M1: 174,132 km (0.082 R)
• M2: 646,712 km (0.094 R)
• M3: 1,144,723 km (0.118 R)
• M4: 1,793,379 km (0.118 R)
• M5: 2,308,146 km (0.113 R)
• M6: 2,862,854 km (0.118 R)
• M7: 3,361,315 km (0.097 R)
• M8: 3,979,154 km (0.11 R)
• M9: 4,603,575 km (0.103 R)

Planet 3 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 572.4

Radius: 6.1

Gravity: 15.38 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 4.49 AU - 7.45 AU

Year: 9569 Days

Day: 18.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,068,213 km

• M1: 76,445 km (0.113 R)
• M2: 314,455 km (0.098 R)
• M3: 541,843 km (0.113 R)
• M4: 890,257 km (0.111 R)
• M5: 1,165,517 km (0.059 R)
• M6: 1,888,673 km (0.08 R)
• M7: 2,239,181 km (0.074 R)
• M8: 2,477,341 km (0.113 R)
• M9: 2,671,968 km (0.082 R)
• M10: 4,117,382 km (0.118 R)
• M11: 6,158,944 km (0.095 R)
• M12: 7,278,236 km (0.08 R)
• M13: 12,318,188 km (0.111 R)
• M14: 12,946,349 km (0.057 R)
• M15: 13,958,977 km (0.069 R)
• M16: 16,140,563 km (0.05 R)
• M17: 18,465,613 km (0.079 R)
• M18: 22,906,576 km (0.071 R)
• M19: 26,201,618 km (0.12 R)
• M20: 33,823,181 km (0.047 R)
• M21: 37,599,330 km (0.045 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 632

Radius: 7.5

Gravity: 11.24 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 6.39 AU - 7.33 AU

Year: 11787 Days

Day: 20.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 52,068,213 km

• M1: 97,687 km (0.075 R)
• M2: 541,095 km (0.11 R)
• M3: 776,413 km (0.093 R)
• M4: 1,400,685 km (0.088 R)
• M5: 2,100,205 km (0.094 R)
• M6: 2,683,487 km (0.105 R)
• M7: 3,013,350 km (0.108 R)
• M8: 4,430,790 km (0.077 R)
• M9: 4,704,255 km (0.084 R)
• M10: 5,593,464 km (0.051 R)
• M11: 6,359,106 km (0.065 R)
• M12: 6,707,819 km (0.076 R)
• M13: 9,220,914 km (0.083 R)
• M14: 9,617,647 km (0.097 R)
• M15: 10,025,900 km (0.059 R)
• M16: 12,600,629 km (0.097 R)
• M17: 15,240,582 km (0.077 R)
• M18: 16,220,448 km (0.025 R)
• M19: 16,508,125 km (0.087 R)
• M20: 17,541,398 km (0.107 R)
• M21: 18,774,383 km (0.069 R)
• M22: 19,251,301 km (0.088 R)
• M23: 20,562,676 km (0.054 R)
• M24: 21,671,196 km (0.118 R)
• M25: 21,932,544 km (0.1 R)
• M26: 25,043,731 km (0.097 R)
• M27: 28,855,634 km (0.118 R)
• M28: 31,563,804 km (0.103 R)
• M29: 35,876,262 km (0.062 R)
• M30: 37,605,314 km (0.12 R)
• M31: 49,161,600 km (0.109 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 267 - 13,227 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit