🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157.5

Radius: 9.3

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.48 AU - 0.58 AU

Year: 262 Days

Day: 8.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,146,627 km

• M1: 115,789 km (0.11 R)
• M2: 411,993 km (0.082 R)
• M3: 722,259 km (0.096 R)
• M4: 1,113,607 km (0.098 R)
• M5: 1,429,707 km (0.094 R)
• M6: 1,918,293 km (0.109 R)
• M7: 2,262,668 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452

Radius: 11.1

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.55 AU - 0.65 AU

Year: 315 Days

Day: 5.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,146,627 km

• M1: 138,079 km (0.084 R)
• M2: 647,310 km (0.102 R)
• M3: 1,144,723 km (0.098 R)
• M4: 1,634,506 km (0.108 R)
• M5: 2,191,758 km (0.118 R)
• M6: 2,734,799 km (0.09 R)
• M7: 3,152,027 km (0.104 R)
• M8: 3,557,288 km (0.086 R)
• M9: 3,997,405 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.5

Radius: 12.7

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.73 AU - 1.01 AU

Year: 550 Days

Day: 10.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,146,627 km

• M1: 157,975 km (0.071 R)
• M2: 843,582 km (0.04 R)
• M3: 1,309,580 km (0.114 R)
• M4: 1,990,699 km (0.034 R)
• M5: 3,202,292 km (0.116 R)
• M6: 3,641,212 km (0.094 R)
• M7: 4,404,610 km (0.113 R)
• M8: 4,840,538 km (0.054 R)
• M9: 6,269,198 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799.9

Radius: 13.8

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.45 AU - 2.05 AU

Year: 1570 Days

Day: 12 Hours

Environment

Temp: -195 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,146,627 km

• M1: 171,589 km (0.104 R)
• M2: 1,046,138 km (0.113 R)
• M3: 1,922,033 km (0.113 R)
• M4: 2,357,812 km (0.098 R)
• M5: 2,804,212 km (0.116 R)
• M6: 4,636,936 km (0.117 R)
• M7: 5,390,161 km (0.108 R)
• M8: 5,983,915 km (0.092 R)
• M9: 6,671,915 km (0.12 R)
• M10: 8,354,143 km (0.037 R)
• M11: 8,963,007 km (0.104 R)
• M12: 10,407,225 km (0.08 R)
• M13: 13,962,867 km (0.058 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.8

Radius: 13.7

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.27 AU - 2.35 AU

Year: 2381 Days

Day: 12.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 36,146,627 km

• M1: 170,392 km (0.065 R)
• M2: 2,237,236 km (0.117 R)
• M3: 3,494,457 km (0.097 R)
• M4: 7,261,780 km (0.117 R)
• M5: 7,835,188 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.3

Radius: 11.2

Gravity: 5.85 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 3.01 AU - 4.39 AU

Year: 4827 Days

Day: 11.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 36,146,627 km

• M1: 139,276 km (0.038 R)
• M2: 581,188 km (0.091 R)
• M3: 1,051,823 km (0.046 R)
• M4: 1,460,973 km (0.083 R)
• M5: 1,963,173 km (0.107 R)
• M6: 2,495,143 km (0.116 R)
• M7: 3,761,638 km (0.096 R)
• M8: 4,487,338 km (0.116 R)
• M9: 4,923,565 km (0.114 R)
• M10: 7,162,896 km (0.043 R)
• M11: 8,505,985 km (0.045 R)
• M12: 9,055,758 km (0.098 R)
• M13: 9,545,691 km (0.032 R)
• M14: 11,876,575 km (0.113 R)
• M15: 15,010,501 km (0.039 R)
• M16: 18,920,092 km (0.078 R)
• M17: 25,983,056 km (0.069 R)
• M18: 28,420,155 km (0.095 R)
• M19: 29,030,514 km (0.083 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 174.7

Radius: 4

Gravity: 10.92 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 6.79 AU - 7.51 AU

Year: 12967 Days

Day: 24.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 36,146,627 km

• M1: 49,816 km (0.1 R)
• M2: 186,848 km (0.112 R)
• M3: 398,529 km (0.099 R)
• M4: 620,532 km (0.076 R)
• M5: 1,346,979 km (0.068 R)
• M6: 1,678,339 km (0.083 R)
• M7: 1,907,971 km (0.103 R)
• M8: 2,648,481 km (0.064 R)
• M9: 3,472,466 km (0.114 R)
• M10: 5,008,986 km (0.103 R)
• M11: 5,639,541 km (0.054 R)
• M12: 6,876,416 km (0.116 R)
• M13: 8,122,716 km (0.081 R)
• M14: 9,205,206 km (0.092 R)
• M15: 10,761,173 km (0.115 R)
• M16: 13,691,945 km (0.096 R)
• M17: 14,092,119 km (0.109 R)
• M18: 17,712,089 km (0.111 R)
• M19: 21,140,274 km (0.112 R)
• M20: 21,444,556 km (0.115 R)
• M21: 24,066,408 km (0.117 R)
• M22: 29,366,361 km (0.111 R)
• M23: 31,687,522 km (0.094 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 173 - 18,732 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit