🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.2

Radius: 8.9

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.82 AU - 1.14 AU

Year: 626 Days

Day: 7.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 32,955,512 km

• M1: 110,702 km (0.089 R)
• M2: 544,985 km (0.027 R)
• M3: 1,667,717 km (0.049 R)
• M4: 2,180,389 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.5

Radius: 12.6

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.88 AU - 1.28 AU

Year: 725 Days

Day: 12.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,955,512 km

• M1: 157,826 km (0.053 R)
• M2: 571,314 km (0.072 R)
• M3: 1,119,740 km (0.062 R)
• M4: 1,609,523 km (0.064 R)
• M5: 2,302,311 km (0.111 R)
• M6: 2,940,197 km (0.109 R)
• M7: 4,379,029 km (0.107 R)
• M8: 6,677,002 km (0.099 R)
• M9: 7,375,773 km (0.064 R)
• M10: 8,026,674 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 666.3

Radius: 13.6

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.98 AU - 1.22 AU

Year: 745 Days

Day: 9.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,955,512 km

• M1: 169,195 km (0.086 R)
• M2: 779,555 km (0.097 R)
• M3: 1,268,440 km (0.084 R)
• M4: 2,794,189 km (0.025 R)
• M5: 3,308,806 km (0.118 R)
• M6: 3,974,666 km (0.077 R)
• M7: 4,483,149 km (0.109 R)
• M8: 5,035,016 km (0.091 R)
• M9: 5,783,753 km (0.075 R)
• M10: 6,839,016 km (0.114 R)
• M11: 7,688,583 km (0.112 R)
• M12: 8,309,563 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690.8

Radius: 14.1

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.21 AU - 1.57 AU

Year: 1058 Days

Day: 13.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 113.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 32,955,512 km

• M1: 182,509 km (0.073 R)
• M2: 621,130 km (0.083 R)
• M3: 1,205,011 km (0.041 R)
• M4: 1,671,307 km (0.086 R)
• M5: 2,186,373 km (0.111 R)
• M6: 2,672,117 km (0.108 R)
• M7: 3,286,067 km (0.08 R)
• M8: 4,324,276 km (0.06 R)
• M9: 5,292,324 km (0.064 R)
• M10: 6,535,033 km (0.103 R)
• M11: 7,384,001 km (0.115 R)
• M12: 8,385,559 km (0.116 R)
• M13: 9,592,814 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.3

Radius: 10.2

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.49 AU - 1.55 AU

Year: 1210 Days

Day: 6.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 32,955,512 km

• M1: 126,859 km (0.113 R)
• M2: 445,203 km (0.04 R)
• M3: 784,491 km (0.102 R)
• M4: 1,103,135 km (0.066 R)
• M5: 1,447,808 km (0.101 R)
• M6: 2,233,347 km (0.063 R)
• M7: 2,734,350 km (0.054 R)
• M8: 3,064,662 km (0.107 R)
• M9: 3,537,242 km (0.079 R)
• M10: 5,082,588 km (0.103 R)
• M11: 5,994,686 km (0.052 R)
• M12: 6,423,882 km (0.032 R)
• M13: 7,106,198 km (0.096 R)
• M14: 7,587,305 km (0.098 R)
• M15: 9,106,770 km (0.086 R)
• M16: 9,791,330 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933.9

Radius: 13.8

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 3.52 AU - 4.28 AU

Year: 4973 Days

Day: 9.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,955,512 km

• M1: 171,589 km (0.09 R)
• M2: 624,721 km (0.106 R)
• M3: 1,085,781 km (0.091 R)
• M4: 1,570,329 km (0.068 R)
• M5: 2,737,491 km (0.11 R)
• M6: 5,225,603 km (0.1 R)
• M7: 6,221,626 km (0.08 R)
• M8: 6,748,360 km (0.061 R)
• M9: 10,933,211 km (0.075 R)
• M10: 13,730,242 km (0.052 R)
• M11: 14,569,337 km (0.107 R)
• M12: 16,722,648 km (0.115 R)
• M13: 17,228,588 km (0.116 R)
• M14: 18,337,857 km (0.081 R)
• M15: 20,125,701 km (0.102 R)
• M16: 23,099,407 km (0.046 R)
• M17: 26,354,657 km (0.12 R)
• M18: 28,717,705 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.1

Radius: 13.4

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 4.39 AU - 6.61 AU

Year: 8328 Days

Day: 9 Hours

Environment

Temp: -219 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 32,955,512 km

• M1: 173,534 km (0.109 R)
• M2: 763,398 km (0.083 R)
• M3: 2,817,975 km (0.091 R)
• M4: 4,235,116 km (0.083 R)
• M5: 4,669,997 km (0.042 R)
• M6: 8,764,042 km (0.076 R)
• M7: 10,153,955 km (0.098 R)
• M8: 12,507,728 km (0.112 R)
• M9: 13,962,268 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 149.2

Radius: 7.8

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 6.52 AU - 7.68 AU

Year: 12215 Days

Day: 24.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 32,955,512 km

• M1: 129,851 km (0.056 R)
• M2: 432,787 km (0.11 R)
• M3: 906,713 km (0.112 R)
• M4: 1,774,979 km (0.085 R)
• M5: 2,496,788 km (0.1 R)
• M6: 3,051,497 km (0.039 R)
• M7: 3,443,593 km (0.087 R)
• M8: 6,709,165 km (0.119 R)
• M9: 10,112,966 km (0.08 R)
• M10: 16,359,126 km (0.053 R)
• M11: 27,914,663 km (0.108 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: 293 - 13,514 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit