🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.16

Radius: 1.58

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.47 AU - 0.75 AU

Year: 313 Days

Day: 20.6 Hours

Environment

Temp: -133 °C

Axial Tilt: 3.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 593.2

Radius: 9.5

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.86 AU - 0.94 AU

Year: 560 Days

Day: 7.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,573,551 km

• M1: 118,781 km (0.059 R)
• M2: 538,702 km (0.096 R)
• M3: 853,905 km (0.102 R)
• M4: 1,235,230 km (0.078 R)
• M5: 1,587,533 km (0.104 R)
• M6: 1,964,519 km (0.06 R)
• M7: 2,304,854 km (0.094 R)
• M8: 2,759,034 km (0.064 R)
• M9: 3,767,323 km (0.043 R)
• M10: 4,504,541 km (0.045 R)
• M11: 5,052,967 km (0.096 R)
• M12: 5,540,507 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.5

Radius: 10.8

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.92 AU - 1.1 AU

Year: 666 Days

Day: 9.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 30,573,551 km

• M1: 134,339 km (0.104 R)
• M2: 1,020,557 km (0.116 R)
• M3: 1,381,836 km (0.041 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 519.5

Radius: 12.6

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.97 AU - 1.09 AU

Year: 686 Days

Day: 9.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,573,551 km

• M1: 156,779 km (0.04 R)
• M2: 654,191 km (0.104 R)
• M3: 1,052,571 km (0.104 R)
• M4: 1,658,741 km (0.11 R)
• M5: 2,053,081 km (0.08 R)
• M6: 2,583,406 km (0.117 R)
• M7: 3,403,052 km (0.095 R)
• M8: 3,881,317 km (0.094 R)
• M9: 4,299,144 km (0.116 R)
• M10: 4,859,687 km (0.11 R)
• M11: 5,311,772 km (0.025 R)
• M12: 5,921,233 km (0.108 R)
• M13: 7,323,265 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.5

Radius: 11.9

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 3.4 AU - 3.84 AU

Year: 4518 Days

Day: 7.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 30,573,551 km

• M1: 148,102 km (0.102 R)
• M2: 551,567 km (0.105 R)
• M3: 1,318,107 km (0.09 R)
• M4: 1,851,274 km (0.112 R)
• M5: 2,422,289 km (0.116 R)
• M6: 4,567,223 km (0.097 R)
• M7: 5,991,694 km (0.052 R)
• M8: 6,821,214 km (0.068 R)
• M9: 7,405,244 km (0.113 R)
• M10: 8,258,102 km (0.116 R)
• M11: 12,336,888 km (0.048 R)
• M12: 13,822,095 km (0.119 R)
• M13: 14,607,933 km (0.054 R)
• M14: 15,063,010 km (0.105 R)
• M15: 15,684,439 km (0.111 R)
• M16: 17,708,498 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.5

Radius: 8.7

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 3.51 AU - 3.73 AU

Year: 4518 Days

Day: 12 Hours

Environment

Temp: -206 °C

Axial Tilt: 152.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 30,573,551 km

• M1: 150,196 km (0.042 R)
• M2: 1,700,629 km (0.069 R)
• M3: 3,252,407 km (0.109 R)
• M4: 4,715,923 km (0.106 R)
• M5: 5,218,123 km (0.089 R)
• M6: 6,249,152 km (0.118 R)
• M7: 6,742,376 km (0.062 R)
• M8: 7,410,181 km (0.067 R)
• M9: 9,430,201 km (0.12 R)
• M10: 10,339,906 km (0.049 R)
• M11: 10,952,060 km (0.114 R)
• M12: 11,874,181 km (0.107 R)
• M13: 12,717,315 km (0.087 R)
• M14: 14,855,218 km (0.061 R)
• M15: 17,756,070 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 180.2

Radius: 4

Gravity: 11.26 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 4.85 AU - 7.39 AU

Year: 9932 Days

Day: 21 Hours

Environment

Temp: -224 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 30,573,551 km

• M1: 52,060 km (0.081 R)
• M2: 194,477 km (0.06 R)
• M3: 328,367 km (0.086 R)
• M4: 498,610 km (0.069 R)
• M5: 1,022,053 km (0.079 R)
• M6: 1,558,511 km (0.071 R)
• M7: 1,902,436 km (0.12 R)
• M8: 2,327,444 km (0.044 R)
• M9: 2,868,539 km (0.119 R)
• M10: 3,553,548 km (0.062 R)
• M11: 3,685,044 km (0.065 R)
• M12: 4,568,420 km (0.108 R)
• M13: 5,045,487 km (0.071 R)
• M14: 5,584,339 km (0.066 R)
• M15: 6,286,851 km (0.11 R)
• M16: 6,978,142 km (0.117 R)
• M17: 8,706,147 km (0.077 R)
• M18: 14,039,162 km (0.062 R)
• M19: 15,099,212 km (0.112 R)
• M20: 15,386,739 km (0.108 R)
• M21: 16,211,323 km (0.074 R)
• M22: 17,127,161 km (0.036 R)
• M23: 19,061,013 km (0.109 R)
• M24: 19,600,313 km (0.079 R)
• M25: 20,568,510 km (0.1 R)
• M26: 24,999,899 km (0.114 R)
• M27: 25,809,073 km (0.117 R)
• M28: 26,971,000 km (0.101 R)
• M29: 27,650,324 km (0.085 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: 382 - 12,869 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit