🌌 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: 641.7

Radius: 14.9

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.56 AU - 0.82 AU

Year: 382 Days

Day: 5.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 91,380,326 km

• M1: 185,352 km (0.04 R)
• M2: 659,577 km (0.091 R)
• M3: 1,351,168 km (0.116 R)
• M4: 1,902,137 km (0.098 R)
• M5: 2,448,917 km (0.079 R)
• M6: 3,048,505 km (0.071 R)
• M7: 3,638,071 km (0.08 R)
• M8: 4,492,424 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.5

Radius: 11.6

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.87 AU - 0.91 AU

Year: 560 Days

Day: 14.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 91,380,326 km

• M1: 145,110 km (0.094 R)
• M2: 516,561 km (0.055 R)
• M3: 913,594 km (0.048 R)
• M4: 1,324,091 km (0.107 R)
• M5: 1,793,379 km (0.119 R)
• M6: 2,494,993 km (0.107 R)
• M7: 2,864,350 km (0.059 R)
• M8: 3,742,640 km (0.111 R)
• M9: 4,141,168 km (0.111 R)
• M10: 4,505,140 km (0.119 R)
• M11: 5,091,713 km (0.099 R)
• M12: 5,528,539 km (0.054 R)
• M13: 6,182,132 km (0.071 R)
• M14: 7,161,699 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.9

Radius: 10.7

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.39 AU - 1.57 AU

Year: 1201 Days

Day: 10.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 91,380,326 km

• M1: 133,890 km (0.077 R)
• M2: 579,991 km (0.114 R)
• M3: 923,318 km (0.098 R)
• M4: 1,656,946 km (0.091 R)
• M5: 2,384,740 km (0.067 R)
• M6: 2,733,003 km (0.113 R)
• M7: 3,339,024 km (0.084 R)
• M8: 4,239,155 km (0.108 R)
• M9: 5,614,558 km (0.059 R)
• M10: 6,636,311 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104.5

Radius: 10.5

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.16 AU - 2.2 AU

Year: 2146 Days

Day: 12.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 91,380,326 km

• M1: 130,749 km (0.111 R)
• M2: 581,637 km (0.076 R)
• M3: 1,076,357 km (0.096 R)
• M4: 1,798,017 km (0.108 R)
• M5: 3,142,902 km (0.077 R)
• M6: 4,542,390 km (0.056 R)
• M7: 6,906,335 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.4

Radius: 12.3

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 4.75 AU - 6.05 AU

Year: 8368 Days

Day: 12.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 91,380,326 km

• M1: 153,039 km (0.092 R)
• M2: 541,993 km (0.073 R)
• M3: 1,360,892 km (0.088 R)
• M4: 3,166,389 km (0.069 R)
• M5: 3,666,644 km (0.084 R)
• M6: 5,141,529 km (0.1 R)
• M7: 8,173,728 km (0.061 R)
• M8: 8,557,148 km (0.072 R)
• M9: 9,257,266 km (0.083 R)
• M10: 9,887,222 km (0.061 R)
• M11: 10,733,797 km (0.075 R)
• M12: 12,403,758 km (0.029 R)
• M13: 15,224,276 km (0.051 R)
• M14: 15,806,361 km (0.104 R)
• M15: 16,252,612 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.6

Radius: 15

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 4.66 AU - 6.48 AU

Year: 8766 Days

Day: 8.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 91,380,326 km

• M1: 191,934 km (0.059 R)
• M2: 1,054,815 km (0.111 R)
• M3: 2,470,310 km (0.115 R)
• M4: 2,975,502 km (0.117 R)
• M5: 4,199,212 km (0.089 R)
• M6: 7,910,287 km (0.118 R)
• M7: 10,276,925 km (0.054 R)
• M8: 10,986,168 km (0.105 R)
• M9: 13,311,667 km (0.106 R)
• M10: 15,588,996 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 991.1

Radius: 6.7

Gravity: 22.08 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 8.74 AU - 11.76 AU

Year: 21883 Days

Day: 24.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 91,380,326 km

• M1: 85,570 km (0.072 R)
• M2: 524,041 km (0.088 R)
• M3: 1,579,454 km (0.068 R)
• M4: 4,859,388 km (0.078 R)
• M5: 5,132,553 km (0.089 R)
• M6: 6,058,714 km (0.1 R)
• M7: 6,329,636 km (0.088 R)
• M8: 9,501,709 km (0.114 R)
• M9: 11,156,560 km (0.118 R)
• M10: 12,265,380 km (0.098 R)
• M11: 13,522,002 km (0.081 R)
• M12: 14,221,073 km (0.096 R)
• M13: 14,459,382 km (0.092 R)
• M14: 15,107,739 km (0.073 R)
• M15: 15,522,724 km (0.073 R)
• M16: 16,990,877 km (0.081 R)
• M17: 22,265,848 km (0.094 R)
• M18: 22,695,194 km (0.111 R)
• M19: 26,211,791 km (0.068 R)
• M20: 29,171,585 km (0.066 R)
• M21: 33,594,895 km (0.12 R)
• M22: 38,753,478 km (0.107 R)
• M23: 40,796,686 km (0.089 R)
• M24: 56,349,180 km (0.112 R)
• M25: 61,455,104 km (0.069 R)
• M26: 61,876,372 km (0.11 R)
• M27: 63,581,040 km (0.08 R)
• M28: 68,655,549 km (0.057 R)
• M29: 70,943,649 km (0.112 R)
• M30: 74,231,660 km (0.177 R)
• M31: 84,442,762 km (0.093 R)
• M32: 87,067,756 km (0.197 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: 533 - 15,551 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit