🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.4

Radius: 8.8

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.8 AU - 0.8 AU

Year: 455 Days

Day: 8.3 Hours

Environment

Temp: -136 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,367,393 km

• M1: 109,506 km (0.088 R)
• M2: 418,874 km (0.101 R)
• M3: 698,472 km (0.093 R)
• M4: 1,097,151 km (0.053 R)
• M5: 1,500,317 km (0.107 R)
• M6: 2,437,996 km (0.113 R)
• M7: 2,811,393 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.5

Radius: 13

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.91 AU - 1.03 AU

Year: 607 Days

Day: 11 Hours

Environment

Temp: -163 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 42,367,393 km

• M1: 161,715 km (0.088 R)
• M2: 625,768 km (0.092 R)
• M3: 1,217,577 km (0.103 R)
• M4: 1,893,909 km (0.076 R)
• M5: 2,411,218 km (0.079 R)
• M6: 2,897,711 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 924.3

Radius: 8.7

Gravity: 12.21 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.99 AU - 1.53 AU

Year: 899 Days

Day: 14.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 42,367,393 km

• M1: 108,159 km (0.115 R)
• M2: 462,856 km (0.088 R)
• M3: 893,398 km (0.099 R)
• M4: 1,338,751 km (0.072 R)
• M5: 1,630,916 km (0.045 R)
• M6: 2,098,409 km (0.117 R)
• M7: 2,404,038 km (0.101 R)
• M8: 3,373,432 km (0.039 R)
• M9: 3,733,215 km (0.103 R)
• M10: 4,218,810 km (0.073 R)
• M11: 4,637,085 km (0.031 R)
• M12: 4,987,743 km (0.074 R)
• M13: 5,336,156 km (0.097 R)
• M14: 6,570,937 km (0.092 R)
• M15: 7,627,397 km (0.025 R)
• M16: 7,986,133 km (0.036 R)
• M17: 8,276,053 km (0.045 R)
• M18: 8,737,712 km (0.105 R)
• M19: 10,600,056 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.6

Radius: 8.7

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 3.5 AU - 3.74 AU

Year: 4379 Days

Day: 8.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 42,367,393 km

• M1: 108,159 km (0.055 R)
• M2: 494,421 km (0.09 R)
• M3: 1,294,321 km (0.098 R)
• M4: 1,620,743 km (0.082 R)
• M5: 2,471,506 km (0.108 R)
• M6: 2,898,309 km (0.036 R)
• M7: 3,537,391 km (0.057 R)
• M8: 4,837,546 km (0.108 R)
• M9: 6,183,927 km (0.085 R)
• M10: 7,483,933 km (0.091 R)
• M11: 8,992,178 km (0.108 R)
• M12: 10,078,857 km (0.106 R)
• M13: 10,850,483 km (0.093 R)
• M14: 13,723,510 km (0.08 R)
• M15: 14,477,932 km (0.048 R)
• M16: 15,160,547 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.3

Radius: 9.7

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.35 AU - 5.29 AU

Year: 5709 Days

Day: 5.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,367,393 km

• M1: 121,623 km (0.049 R)
• M2: 534,812 km (0.081 R)
• M3: 1,054,216 km (0.098 R)
• M4: 1,535,772 km (0.09 R)
• M5: 1,985,912 km (0.039 R)
• M6: 2,539,125 km (0.104 R)
• M7: 6,104,790 km (0.12 R)
• M8: 6,639,901 km (0.079 R)
• M9: 7,171,722 km (0.05 R)
• M10: 8,704,053 km (0.08 R)
• M11: 10,799,470 km (0.09 R)
• M12: 12,305,023 km (0.105 R)
• M13: 15,554,439 km (0.082 R)
• M14: 15,960,597 km (0.091 R)
• M15: 16,673,281 km (0.112 R)
• M16: 18,938,941 km (0.048 R)
• M17: 21,905,167 km (0.063 R)
• M18: 22,711,051 km (0.091 R)
• M19: 24,381,910 km (0.073 R)
• M20: 27,206,467 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 342.6

Radius: 6.6

Gravity: 7.87 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 5.59 AU - 8.39 AU

Year: 11750 Days

Day: 18.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 42,367,393 km

• M1: 82,129 km (0.09 R)
• M2: 308,770 km (0.097 R)
• M3: 520,152 km (0.085 R)
• M4: 851,361 km (0.093 R)
• M5: 1,060,948 km (0.089 R)
• M6: 2,294,233 km (0.053 R)
• M7: 3,170,428 km (0.106 R)
• M8: 4,038,993 km (0.075 R)
• M9: 6,557,174 km (0.092 R)
• M10: 6,927,129 km (0.108 R)
• M11: 10,257,627 km (0.079 R)
• M12: 10,555,027 km (0.071 R)
• M13: 12,349,753 km (0.114 R)
• M14: 14,400,291 km (0.093 R)
• M15: 14,648,175 km (0.104 R)
• M16: 16,940,762 km (0.073 R)
• M17: 17,286,632 km (0.029 R)
• M18: 20,071,546 km (0.067 R)
• M19: 21,976,675 km (0.106 R)
• M20: 23,057,370 km (0.051 R)
• M21: 27,831,188 km (0.094 R)
• M22: 28,312,893 km (0.114 R)
• M23: 30,703,018 km (0.04 R)
• M24: 33,548,968 km (0.116 R)
• M25: 38,913,997 km (0.076 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 146 - 12,587 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit