🌌 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 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.57

Radius: 0.8

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.49 AU - 0.61 AU

Year: 263 Days

Day: 41.6 Hours

Environment

Temp: -130 °C

Axial Tilt: 8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 39,598,208 km

• M1: 18,700 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.3

Radius: 10.2

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.56 AU - 0.88 AU

Year: 394 Days

Day: 9.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 39,598,208 km

• M1: 130,749 km (0.093 R)
• M2: 515,963 km (0.081 R)
• M3: 945,907 km (0.079 R)
• M4: 1,375,104 km (0.076 R)
• M5: 1,793,529 km (0.1 R)
• M6: 2,319,365 km (0.117 R)
• M7: 2,792,543 km (0.079 R)
• M8: 3,409,934 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.4

Radius: 12.1

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.81 AU - 1.01 AU

Year: 561 Days

Day: 5.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,598,208 km

• M1: 150,495 km (0.032 R)
• M2: 556,354 km (0.105 R)
• M3: 963,560 km (0.115 R)
• M4: 1,346,530 km (0.109 R)
• M5: 1,774,380 km (0.099 R)
• M6: 2,522,220 km (0.11 R)
• M7: 2,969,817 km (0.091 R)
• M8: 3,512,708 km (0.117 R)
• M9: 4,085,817 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.7

Radius: 11.2

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.39 AU - 2.59 AU

Year: 2537 Days

Day: 10.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 39,598,208 km

• M1: 139,724 km (0.116 R)
• M2: 513,719 km (0.109 R)
• M3: 982,409 km (0.108 R)
• M4: 1,928,915 km (0.104 R)
• M5: 4,096,887 km (0.09 R)

Asteroid Belt

Center: 4.24 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.7

Radius: 12

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 5.18 AU - 6.78 AU

Year: 9442 Days

Day: 7.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 39,598,208 km

• M1: 149,299 km (0.088 R)
• M2: 532,868 km (0.095 R)
• M3: 1,200,224 km (0.118 R)
• M4: 2,132,518 km (0.088 R)
• M5: 3,045,364 km (0.057 R)
• M6: 8,714,525 km (0.073 R)
• M7: 12,051,455 km (0.118 R)
• M8: 14,895,460 km (0.093 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 240.1

Radius: 6.9

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 6.33 AU - 8.23 AU

Year: 12683 Days

Day: 15.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 39,598,208 km

• M1: 86,019 km (0.119 R)
• M2: 495,169 km (0.047 R)
• M3: 1,120,937 km (0.12 R)
• M4: 1,868,477 km (0.086 R)
• M5: 2,614,672 km (0.086 R)
• M6: 3,783,181 km (0.036 R)
• M7: 4,565,727 km (0.056 R)
• M8: 5,389,114 km (0.087 R)
• M9: 6,001,717 km (0.078 R)
• M10: 7,441,746 km (0.115 R)
• M11: 8,159,666 km (0.081 R)
• M12: 10,787,353 km (0.09 R)
• M13: 12,129,994 km (0.119 R)
• M14: 14,168,115 km (0.105 R)
• M15: 15,080,961 km (0.118 R)
• M16: 16,555,847 km (0.109 R)
• M17: 19,641,004 km (0.059 R)
• M18: 20,697,913 km (0.109 R)
• M19: 21,871,657 km (0.096 R)
• M20: 22,111,612 km (0.057 R)
• M21: 22,434,445 km (0.082 R)
• M22: 22,760,269 km (0.113 R)
• M23: 24,955,767 km (0.113 R)
• M24: 29,567,720 km (0.035 R)
• M25: 34,177,130 km (0.103 R)
• M26: 35,925,031 km (0.075 R)
• M27: 38,657,436 km (0.072 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 486 - 19,181 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit