🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.83

Radius: 0.93

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.42 AU - 0.62 AU

Year: 246 Days

Day: 45.1 Hours

Environment

Temp: -109 °C

Axial Tilt: 11.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.5 AU - 0.62 AU

Year: 275 Days

Day: 24 Hours

Environment

Temp: -133 °C

Axial Tilt: 29 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447

Radius: 14.7

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.83 AU - 1.25 AU

Year: 696 Days

Day: 14.4 Hours

Environment

Temp: -153 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 31,261,575 km

• M1: 182,809 km (0.116 R)
• M2: 716,125 km (0.115 R)
• M3: 1,640,341 km (0.038 R)
• M4: 2,161,240 km (0.069 R)
• M5: 3,396,320 km (0.1 R)
• M6: 6,224,618 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.2

Radius: 11.7

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.27 AU - 1.55 AU

Year: 1098 Days

Day: 7 Hours

Environment

Temp: -167 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 31,261,575 km

• M1: 145,559 km (0.106 R)
• M2: 731,982 km (0.08 R)
• M3: 1,640,041 km (0.042 R)
• M4: 2,377,858 km (0.083 R)
• M5: 3,022,775 km (0.089 R)
• M6: 3,591,396 km (0.107 R)
• M7: 4,476,267 km (0.11 R)
• M8: 5,180,125 km (0.117 R)
• M9: 6,523,066 km (0.111 R)
• M10: 7,194,760 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.9

Radius: 13.7

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.74 AU - 2.82 AU

Year: 2258 Days

Day: 5.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,261,575 km

• M1: 170,841 km (0.071 R)
• M2: 803,041 km (0.105 R)
• M3: 2,166,626 km (0.071 R)
• M4: 3,076,181 km (0.115 R)
• M5: 3,567,760 km (0.103 R)
• M6: 4,494,967 km (0.101 R)
• M7: 5,282,899 km (0.111 R)
• M8: 5,773,431 km (0.118 R)
• M9: 6,371,224 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.4

Radius: 9.9

Gravity: 7.35 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.91 AU - 3.03 AU

Year: 2547 Days

Day: 12.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 31,261,575 km

• M1: 123,119 km (0.034 R)
• M2: 457,321 km (0.094 R)
• M3: 848,220 km (0.076 R)
• M4: 1,259,913 km (0.1 R)
• M5: 2,005,060 km (0.086 R)
• M6: 3,136,619 km (0.087 R)
• M7: 5,200,770 km (0.105 R)
• M8: 8,835,699 km (0.105 R)
• M9: 12,372,193 km (0.099 R)
• M10: 15,979,297 km (0.118 R)
• M11: 16,338,481 km (0.113 R)
• M12: 16,703,051 km (0.045 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.2

Radius: 9.2

Gravity: 7.34 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 3.35 AU - 3.35 AU

Year: 4022 Days

Day: 5.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 31,261,575 km

• M1: 114,592 km (0.07 R)
• M2: 489,035 km (0.095 R)
• M3: 931,396 km (0.111 R)
• M4: 1,308,233 km (0.101 R)
• M5: 2,171,712 km (0.095 R)
• M6: 3,075,283 km (0.11 R)
• M7: 3,394,226 km (0.043 R)
• M8: 3,694,020 km (0.056 R)
• M9: 4,188,441 km (0.119 R)
• M10: 4,534,162 km (0.119 R)
• M11: 5,075,706 km (0.109 R)
• M12: 5,742,913 km (0.116 R)
• M13: 7,218,995 km (0.069 R)
• M14: 7,923,451 km (0.109 R)
• M15: 8,970,487 km (0.12 R)
• M16: 10,312,679 km (0.069 R)
• M17: 12,475,565 km (0.099 R)
• M18: 12,951,585 km (0.036 R)
• M19: 13,738,320 km (0.077 R)
• M20: 14,348,979 km (0.11 R)
• M21: 14,766,058 km (0.112 R)
• M22: 16,177,813 km (0.045 R)
• M23: 17,499,809 km (0.117 R)
• M24: 21,965,455 km (0.058 R)
• M25: 22,380,440 km (0.059 R)
• M26: 22,800,511 km (0.062 R)
• M27: 23,512,297 km (0.076 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.1

Radius: 9.6

Gravity: 8.94 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 3.72 AU - 3.82 AU

Year: 4802 Days

Day: 14.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 31,261,575 km

• M1: 119,379 km (0.089 R)
• M2: 523,593 km (0.117 R)
• M3: 1,074,412 km (0.082 R)
• M4: 1,572,423 km (0.118 R)
• M5: 2,281,517 km (0.084 R)
• M6: 2,772,198 km (0.075 R)
• M7: 3,783,181 km (0.055 R)
• M8: 4,082,675 km (0.098 R)
• M9: 4,703,507 km (0.066 R)
• M10: 5,443,268 km (0.082 R)
• M11: 6,009,047 km (0.058 R)
• M12: 7,649,687 km (0.047 R)
• M13: 9,113,353 km (0.106 R)
• M14: 9,697,084 km (0.098 R)
• M15: 10,939,045 km (0.088 R)
• M16: 11,455,008 km (0.12 R)
• M17: 14,671,811 km (0.052 R)
• M18: 16,731,026 km (0.099 R)
• M19: 17,164,860 km (0.082 R)
• M20: 19,177,101 km (0.096 R)
• M21: 20,345,011 km (0.05 R)
• M22: 20,839,432 km (0.059 R)
• M23: 23,126,036 km (0.078 R)
• M24: 23,664,738 km (0.098 R)
• M25: 23,976,200 km (0.092 R)
• M26: 24,527,917 km (0.101 R)
• M27: 26,567,834 km (0.082 R)
• M28: 27,414,558 km (0.101 R)
• M29: 28,718,154 km (0.087 R)
• M30: 30,520,060 km (0.112 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: 339 - 12,753 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit