🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.53 AU - 0.65 AU

Year: 297 Days

Day: 40.5 Hours

Environment

Temp: -137 °C

Axial Tilt: 2.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 533.9

Radius: 11.8

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.65 AU - 0.97 AU

Year: 478 Days

Day: 5.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 27,232,316 km

• M1: 146,905 km (0.118 R)
• M2: 531,521 km (0.115 R)
• M3: 934,089 km (0.11 R)
• M4: 1,529,788 km (0.097 R)
• M5: 2,794,039 km (0.106 R)
• M6: 3,528,565 km (0.099 R)
• M7: 3,928,889 km (0.058 R)
• M8: 4,645,014 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871

Radius: 12.7

Gravity: 5.4 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.02 AU - 1.4 AU

Year: 873 Days

Day: 13 Hours

Environment

Temp: -171 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,232,316 km

• M1: 158,574 km (0.079 R)
• M2: 692,788 km (0.107 R)
• M3: 1,305,840 km (0.104 R)
• M4: 1,777,821 km (0.104 R)
• M5: 2,331,483 km (0.091 R)
• M6: 2,795,685 km (0.084 R)
• M7: 3,851,547 km (0.064 R)
• M8: 5,025,591 km (0.093 R)
• M9: 5,625,329 km (0.079 R)
• M10: 6,337,564 km (0.052 R)
• M11: 6,807,002 km (0.066 R)
• M12: 8,812,511 km (0.079 R)
• M13: 9,599,695 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.5

Radius: 11.8

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 4.24 AU - 5.64 AU

Year: 7203 Days

Day: 12.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 27,232,316 km

• M1: 146,756 km (0.11 R)
• M2: 1,148,014 km (0.083 R)
• M3: 1,704,369 km (0.095 R)
• M4: 2,238,882 km (0.091 R)
• M5: 2,936,756 km (0.034 R)
• M6: 3,690,579 km (0.12 R)
• M7: 4,284,932 km (0.109 R)
• M8: 5,864,685 km (0.117 R)
• M9: 6,367,185 km (0.102 R)
• M10: 7,324,312 km (0.079 R)
• M11: 9,285,390 km (0.058 R)
• M12: 11,943,296 km (0.077 R)
• M13: 13,905,720 km (0.094 R)
• M14: 14,375,308 km (0.082 R)
• M15: 14,747,807 km (0.104 R)
• M16: 15,236,244 km (0.056 R)
• M17: 17,599,741 km (0.072 R)
• M18: 19,541,820 km (0.096 R)
• M19: 22,042,349 km (0.093 R)
• M20: 23,114,217 km (0.108 R)
• M21: 25,828,372 km (0.11 R)

Planet 5 - Ice Giant

Semi-Major Axis: 10.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 643.7

Radius: 6.6

Gravity: 14.78 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 8.98 AU - 11.12 AU

Year: 20901 Days

Day: 16.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 27,232,316 km

• M1: 82,279 km (0.044 R)
• M2: 301,589 km (0.112 R)
• M3: 607,966 km (0.109 R)
• M4: 833,410 km (0.107 R)
• M5: 1,308,981 km (0.065 R)
• M6: 2,547,502 km (0.118 R)
• M7: 3,203,040 km (0.07 R)
• M8: 3,483,087 km (0.115 R)
• M9: 3,749,222 km (0.096 R)
• M10: 4,092,848 km (0.083 R)
• M11: 5,482,912 km (0.045 R)
• M12: 6,263,064 km (0.091 R)
• M13: 13,047,328 km (0.049 R)
• M14: 13,618,193 km (0.095 R)
• M15: 14,581,155 km (0.054 R)
• M16: 15,118,062 km (0.101 R)
• M17: 15,352,182 km (0.054 R)
• M18: 16,069,205 km (0.1 R)
• M19: 16,559,437 km (0.097 R)
• M20: 17,059,543 km (0.118 R)
• M21: 18,799,516 km (0.118 R)
• M22: 19,712,362 km (0.114 R)
• M23: 20,654,529 km (0.09 R)
• M24: 23,976,350 km (0.057 R)
• M25: 25,267,679 km (0.027 R)
• M26: 28,697,659 km (0.074 R)
• M27: 31,655,657 km (0.102 R)
• M28: 32,425,787 km (0.052 R)
• M29: 32,945,939 km (0.064 R)
• M30: 34,405,416 km (0.078 R)
• M31: 36,324,607 km (0.051 R)
• M32: 37,452,575 km (0.095 R)
• M33: 43,445,316 km (0.111 R)
• M34: 43,760,668 km (0.039 R)
• M35: 52,150,267 km (0.089 R)
• M36: 57,855,630 km (0.074 R)
• M37: 61,550,548 km (0.082 R)
• M38: 61,948,478 km (0.089 R)
• M39: 66,857,383 km (0.03 R)
• M40: 69,191,409 km (0.033 R)
• M41: 74,471,466 km (0.066 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 25

Radius: 3.7

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 8.37 AU - 12.69 AU

Year: 22416 Days

Day: 17 Hours

Environment

Temp: -228 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,232,316 km

• M1: 47,722 km (0.11 R)
• M2: 305,030 km (0.108 R)
• M3: 460,612 km (0.108 R)
• M4: 3,343,363 km (0.105 R)
• M5: 5,027,984 km (0.108 R)
• M6: 8,784,237 km (0.101 R)
• M7: 12,651,941 km (0.118 R)
• M8: 12,798,995 km (0.06 R)
• M9: 14,763,066 km (0.101 R)
• M10: 17,763,700 km (0.1 R)
• M11: 22,916,000 km (0.096 R)
• M12: 23,208,015 km (0.055 R)
• M13: 26,265,347 km (0.074 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: 519 - 11,798 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit