🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.68

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.51 AU - 0.63 AU

Year: 274 Days

Day: 27.2 Hours

Environment

Temp: -128 °C

Axial Tilt: 5.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,565,246 km

• M1: 80,783 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.8

Radius: 14.2

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.61 AU - 1.01 AU

Year: 464 Days

Day: 12.1 Hours

Environment

Temp: -147 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,565,246 km

• M1: 176,525 km (0.077 R)
• M2: 752,926 km (0.088 R)
• M3: 1,230,891 km (0.048 R)
• M4: 1,675,945 km (0.102 R)
• M5: 2,321,609 km (0.062 R)
• M6: 3,029,357 km (0.07 R)
• M7: 3,971,075 km (0.106 R)
• M8: 5,020,505 km (0.074 R)
• M9: 5,905,825 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.4

Radius: 13.3

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.79 AU - 0.85 AU

Year: 472 Days

Day: 11.2 Hours

Environment

Temp: -141 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,565,246 km

• M1: 169,494 km (0.116 R)
• M2: 631,901 km (0.11 R)
• M3: 1,305,690 km (0.057 R)
• M4: 1,724,564 km (0.08 R)
• M5: 2,385,488 km (0.106 R)
• M6: 3,047,608 km (0.075 R)
• M7: 3,504,480 km (0.12 R)
• M8: 3,952,077 km (0.084 R)
• M9: 4,649,502 km (0.03 R)
• M10: 5,705,812 km (0.091 R)
• M11: 6,141,142 km (0.1 R)
• M12: 6,795,932 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.5

Radius: 9.6

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.07 AU - 1.15 AU

Year: 744 Days

Day: 6.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 72 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,565,246 km

• M1: 119,379 km (0.059 R)
• M2: 527,482 km (0.107 R)
• M3: 1,016,518 km (0.109 R)
• M4: 1,485,806 km (0.091 R)
• M5: 1,792,781 km (0.097 R)
• M6: 2,401,046 km (0.107 R)
• M7: 3,667,990 km (0.116 R)
• M8: 4,085,817 km (0.078 R)
• M9: 4,455,473 km (0.066 R)
• M10: 4,898,133 km (0.096 R)
• M11: 5,209,297 km (0.079 R)
• M12: 5,719,725 km (0.104 R)
• M13: 7,274,795 km (0.069 R)
• M14: 7,727,029 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.9

Radius: 9.5

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.06 AU - 1.64 AU

Year: 997 Days

Day: 8.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,565,246 km

• M1: 118,182 km (0.085 R)
• M2: 415,433 km (0.086 R)
• M3: 721,959 km (0.042 R)
• M4: 1,018,612 km (0.051 R)
• M5: 1,337,405 km (0.086 R)
• M6: 1,667,717 km (0.111 R)
• M7: 2,052,782 km (0.064 R)
• M8: 2,518,181 km (0.104 R)
• M9: 2,839,517 km (0.079 R)
• M10: 3,163,247 km (0.117 R)
• M11: 5,084,832 km (0.081 R)
• M12: 5,546,790 km (0.11 R)
• M13: 7,477,350 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.5

Radius: 13.3

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 2.39 AU - 2.55 AU

Year: 2468 Days

Day: 11.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,565,246 km

• M1: 165,455 km (0.071 R)
• M2: 690,544 km (0.105 R)
• M3: 1,353,262 km (0.026 R)
• M4: 2,320,861 km (0.08 R)
• M5: 3,258,541 km (0.119 R)
• M6: 3,723,192 km (0.031 R)
• M7: 4,383,666 km (0.106 R)
• M8: 4,989,687 km (0.068 R)
• M9: 5,590,472 km (0.087 R)
• M10: 6,024,456 km (0.112 R)
• M11: 6,570,787 km (0.116 R)
• M12: 8,679,968 km (0.086 R)
• M13: 9,207,450 km (0.097 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 220.6

Radius: 5.3

Gravity: 7.85 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 7.19 AU - 11.75 AU

Year: 18529 Days

Day: 16.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,565,246 km

• M1: 98,435 km (0.091 R)
• M2: 410,796 km (0.116 R)
• M3: 1,018,761 km (0.06 R)
• M4: 1,657,694 km (0.108 R)
• M5: 2,116,211 km (0.058 R)
• M6: 2,532,692 km (0.095 R)
• M7: 2,979,690 km (0.066 R)
• M8: 5,270,931 km (0.11 R)
• M9: 6,945,979 km (0.114 R)
• M10: 8,527,976 km (0.067 R)
• M11: 10,811,289 km (0.112 R)
• M12: 13,848,724 km (0.074 R)
• M13: 14,820,511 km (0.106 R)
• M14: 18,235,232 km (0.048 R)
• M15: 44,271,545 km (0.113 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 392 - 19,105 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit