🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.5

Radius: 12.2

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.52 AU - 0.6 AU

Year: 284 Days

Day: 12.7 Hours

Environment

Temp: -141 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 38,269,046 km

• M1: 151,692 km (0.043 R)
• M2: 575,802 km (0.06 R)
• M3: 967,001 km (0.068 R)
• M4: 1,401,283 km (0.115 R)
• M5: 2,115,314 km (0.112 R)
• M6: 2,540,321 km (0.102 R)
• M7: 3,097,723 km (0.093 R)
• M8: 3,524,077 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.1

Radius: 12.5

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.49 AU - 0.71 AU

Year: 315 Days

Day: 14.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 38,269,046 km

• M1: 155,582 km (0.111 R)
• M2: 556,654 km (0.082 R)
• M3: 1,275,621 km (0.113 R)
• M4: 1,805,198 km (0.043 R)
• M5: 2,326,396 km (0.114 R)
• M6: 2,739,885 km (0.106 R)
• M7: 3,278,587 km (0.067 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.1

Radius: 10

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.55 AU - 2.43 AU

Year: 1904 Days

Day: 11.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 38,269,046 km

• M1: 124,316 km (0.106 R)
• M2: 465,848 km (0.115 R)
• M3: 920,476 km (0.046 R)
• M4: 1,264,102 km (0.085 R)
• M5: 2,110,826 km (0.091 R)
• M6: 2,430,068 km (0.11 R)
• M7: 2,752,302 km (0.058 R)
• M8: 3,365,055 km (0.107 R)
• M9: 3,840,626 km (0.091 R)
• M10: 5,262,703 km (0.094 R)
• M11: 8,588,563 km (0.043 R)
• M12: 9,276,265 km (0.102 R)
• M13: 11,251,854 km (0.066 R)
• M14: 13,754,178 km (0.1 R)
• M15: 14,152,407 km (0.029 R)
• M16: 15,440,894 km (0.101 R)
• M17: 15,822,967 km (0.118 R)
• M18: 16,358,677 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.8

Radius: 14.3

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.92 AU - 2.46 AU

Year: 2198 Days

Day: 5.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 38,269,046 km

• M1: 177,872 km (0.108 R)
• M2: 1,014,124 km (0.104 R)
• M3: 6,213,847 km (0.112 R)
• M4: 6,845,898 km (0.118 R)
• M5: 7,970,275 km (0.039 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 512

Radius: 8.5

Gravity: 7.09 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.98 AU - 2.86 AU

Year: 2553 Days

Day: 9 Hours

Environment

Temp: -198 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 38,269,046 km

• M1: 105,915 km (0.039 R)
• M2: 387,458 km (0.058 R)
• M3: 686,654 km (0.043 R)
• M4: 1,305,092 km (0.097 R)
• M5: 1,994,439 km (0.036 R)
• M6: 3,752,962 km (0.101 R)
• M7: 4,582,632 km (0.117 R)
• M8: 4,884,819 km (0.109 R)
• M9: 8,300,587 km (0.119 R)
• M10: 9,319,798 km (0.117 R)
• M11: 9,948,558 km (0.086 R)
• M12: 10,346,638 km (0.049 R)
• M13: 10,717,640 km (0.038 R)
• M14: 12,415,127 km (0.066 R)
• M15: 13,047,328 km (0.071 R)
• M16: 13,700,921 km (0.054 R)
• M17: 13,968,252 km (0.12 R)
• M18: 14,284,801 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.9

Radius: 11

Gravity: 7.25 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 2.88 AU - 3.02 AU

Year: 3437 Days

Day: 9.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 38,269,046 km

• M1: 136,882 km (0.092 R)
• M2: 543,190 km (0.116 R)
• M3: 915,689 km (0.058 R)
• M4: 1,597,556 km (0.119 R)
• M5: 2,059,065 km (0.104 R)
• M6: 2,690,518 km (0.076 R)
• M7: 3,088,448 km (0.074 R)
• M8: 4,047,819 km (0.082 R)
• M9: 4,645,163 km (0.08 R)
• M10: 5,195,534 km (0.107 R)
• M11: 5,987,206 km (0.092 R)
• M12: 7,673,473 km (0.101 R)
• M13: 8,017,548 km (0.057 R)
• M14: 11,822,570 km (0.118 R)
• M15: 12,236,059 km (0.058 R)
• M16: 12,898,328 km (0.119 R)
• M17: 14,554,377 km (0.054 R)
• M18: 19,150,173 km (0.075 R)
• M19: 20,173,123 km (0.074 R)
• M20: 24,114,578 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 97

Radius: 3.4

Gravity: 8.39 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 7.5 AU - 10.92 AU

Year: 18957 Days

Day: 23.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,269,046 km

• M1: 43,683 km (0.117 R)
• M2: 195,973 km (0.037 R)
• M3: 483,500 km (0.118 R)
• M4: 646,712 km (0.076 R)
• M5: 881,431 km (0.104 R)
• M6: 2,189,963 km (0.102 R)
• M7: 2,814,235 km (0.091 R)
• M8: 3,619,371 km (0.056 R)
• M9: 6,196,344 km (0.116 R)
• M10: 7,617,075 km (0.043 R)
• M11: 9,784,000 km (0.076 R)
• M12: 11,488,069 km (0.098 R)
• M13: 11,694,664 km (0.106 R)
• M14: 12,436,969 km (0.064 R)
• M15: 17,089,313 km (0.098 R)
• M16: 22,780,465 km (0.079 R)
• M17: 23,767,811 km (0.076 R)
• M18: 23,935,061 km (0.088 R)
• M19: 24,697,561 km (0.087 R)
• M20: 30,003,499 km (0.104 R)
• M21: 34,501,009 km (0.063 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 412 - 12,593 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit