🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.3

Radius: 12.7

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.61 AU - 0.77 AU

Year: 370 Days

Day: 10.2 Hours

Environment

Temp: -134 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 37,529,404 km

• M1: 157,975 km (0.065 R)
• M2: 666,907 km (0.095 R)
• M3: 1,326,036 km (0.109 R)
• M4: 1,828,385 km (0.099 R)
• M5: 2,224,371 km (0.091 R)
• M6: 2,678,400 km (0.108 R)
• M7: 3,237,896 km (0.073 R)
• M8: 3,681,005 km (0.069 R)
• M9: 4,216,715 km (0.08 R)
• M10: 4,977,570 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.9

Radius: 12.9

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.7 AU - 0.88 AU

Year: 453 Days

Day: 9.8 Hours

Environment

Temp: -143 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 37,529,404 km

• M1: 160,967 km (0.094 R)
• M2: 607,517 km (0.082 R)
• M3: 1,014,722 km (0.118 R)
• M4: 1,510,639 km (0.047 R)
• M5: 3,545,619 km (0.112 R)
• M6: 4,674,634 km (0.109 R)
• M7: 5,145,868 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.2

Radius: 14

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.14 AU - 1.26 AU

Year: 849 Days

Day: 10.3 Hours

Environment

Temp: -168 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,529,404 km

• M1: 174,132 km (0.075 R)
• M2: 653,294 km (0.055 R)
• M3: 1,520,513 km (0.052 R)
• M4: 2,001,320 km (0.074 R)
• M5: 3,320,923 km (0.103 R)
• M6: 3,901,662 km (0.117 R)
• M7: 6,144,284 km (0.067 R)
• M8: 6,693,158 km (0.098 R)
• M9: 7,137,464 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.2

Radius: 13.2

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 3.85 AU - 4.61 AU

Year: 5617 Days

Day: 14.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 37,529,404 km

• M1: 165,904 km (0.099 R)
• M2: 581,786 km (0.114 R)
• M3: 1,124,527 km (0.038 R)
• M4: 1,567,187 km (0.111 R)
• M5: 2,036,177 km (0.119 R)
• M6: 3,351,142 km (0.108 R)
• M7: 4,450,686 km (0.088 R)
• M8: 7,060,870 km (0.102 R)
• M9: 7,540,929 km (0.11 R)
• M10: 9,200,119 km (0.109 R)
• M11: 10,896,111 km (0.113 R)
• M12: 12,523,735 km (0.094 R)
• M13: 14,307,989 km (0.12 R)
• M14: 16,003,531 km (0.082 R)
• M15: 17,560,546 km (0.081 R)
• M16: 20,376,427 km (0.067 R)
• M17: 21,814,212 km (0.101 R)
• M18: 24,806,768 km (0.086 R)
• M19: 26,094,506 km (0.077 R)
• M20: 27,156,352 km (0.085 R)
• M21: 27,880,106 km (0.086 R)
• M22: 29,555,603 km (0.12 R)
• M23: 30,612,063 km (0.106 R)
• M24: 31,693,655 km (0.12 R)
• M25: 34,246,094 km (0.1 R)
• M26: 35,197,686 km (0.072 R)
• M27: 35,626,135 km (0.101 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 83.7

Radius: 7.1

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 9.44 AU - 9.96 AU

Year: 19506 Days

Day: 22.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,529,404 km

• M1: 97,089 km (0.083 R)
• M2: 504,594 km (0.092 R)
• M3: 910,303 km (0.099 R)
• M4: 2,459,090 km (0.058 R)
• M5: 5,237,272 km (0.115 R)
• M6: 6,948,671 km (0.117 R)
• M7: 8,089,954 km (0.12 R)
• M8: 11,430,773 km (0.11 R)
• M9: 14,618,106 km (0.094 R)
• M10: 23,568,696 km (0.094 R)
• M11: 31,053,825 km (0.117 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 80.3

Radius: 5.5

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 7.75 AU - 12.13 AU

Year: 20235 Days

Day: 16.6 Hours

Environment

Temp: -240 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 37,529,404 km

• M1: 68,366 km (0.059 R)
• M2: 265,686 km (0.112 R)
• M3: 719,267 km (0.073 R)
• M4: 1,001,109 km (0.093 R)
• M5: 1,354,310 km (0.117 R)
• M6: 1,674,599 km (0.095 R)
• M7: 5,551,278 km (0.096 R)
• M8: 6,199,485 km (0.041 R)
• M9: 6,611,927 km (0.053 R)
• M10: 7,762,035 km (0.102 R)
• M11: 8,405,156 km (0.084 R)
• M12: 10,547,248 km (0.079 R)
• M13: 13,704,063 km (0.091 R)
• M14: 16,577,838 km (0.086 R)
• M15: 20,950,733 km (0.115 R)
• M16: 21,565,580 km (0.071 R)
• M17: 24,482,290 km (0.085 R)
• M18: 26,477,178 km (0.025 R)
• M19: 28,112,133 km (0.075 R)
• M20: 28,484,482 km (0.085 R)
• M21: 31,883,196 km (0.045 R)
• M22: 32,901,808 km (0.07 R)
• M23: 33,211,475 km (0.052 R)
• M24: 35,110,919 km (0.116 R)
• M25: 37,305,071 km (0.077 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 393 - 20,248 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit