🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.66

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.45 AU - 0.71 AU

Year: 155 Days

Day: 26.7 Hours

Environment

Temp: 228 °C

Axial Tilt: 31 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 38,583,676 km

• M1: 392,994 km (0.087 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.67 AU - 0.77 AU

Year: 214 Days

Day: 23.1 Hours

Environment

Temp: 177 °C

Axial Tilt: 46.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 38,583,676 km

• M1: 318,045 km (0.08 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.86

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.89 AU - 1.47 AU

Year: 448 Days

Day: 25.7 Hours

Environment

Temp: 16 °C

Axial Tilt: 0.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.94

Radius: 1.3

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.22 AU - 1.8 AU

Year: 649 Days

Day: 37.2 Hours

Environment

Temp: -0 °C

Axial Tilt: 27.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.42

Radius: 1.64

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 2.84 AU - 3.44 AU

Year: 1947 Days

Day: 39.2 Hours

Environment

Temp: -91 °C

Axial Tilt: 137.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 38,583,676 km

• M1: 38,596 km (0.072 R)
• M2: 83,775 km (0.105 R)

Asteroid Belt

Center: 5.37 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 7.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.1

Radius: 14.9

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 6.07 AU - 9.13 AU

Year: 7330 Days

Day: 9.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 38,583,676 km

• M1: 186,698 km (0.028 R)
• M2: 1,239,568 km (0.088 R)
• M3: 1,949,859 km (0.064 R)
• M4: 4,180,512 km (0.06 R)
• M5: 7,505,475 km (0.026 R)
• M6: 8,330,956 km (0.097 R)
• M7: 8,914,238 km (0.1 R)
• M8: 9,408,210 km (0.074 R)
• M9: 12,067,312 km (0.11 R)
• M10: 13,495,523 km (0.086 R)
• M11: 16,178,262 km (0.114 R)
• M12: 22,648,818 km (0.042 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.7

Radius: 8.8

Gravity: 7.25 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 8.94 AU - 9.24 AU

Year: 9588 Days

Day: 12 Hours

Environment

Temp: -171 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 38,583,676 km

• M1: 109,506 km (0.117 R)
• M2: 495,468 km (0.097 R)
• M3: 805,734 km (0.07 R)
• M4: 1,116,748 km (0.093 R)
• M5: 1,630,916 km (0.119 R)
• M6: 2,422,588 km (0.109 R)
• M7: 3,197,056 km (0.077 R)
• M8: 3,892,537 km (0.116 R)
• M9: 4,235,415 km (0.063 R)
• M10: 5,073,761 km (0.11 R)
• M11: 5,984,064 km (0.043 R)
• M12: 9,937,787 km (0.067 R)
• M13: 10,733,049 km (0.064 R)
• M14: 11,840,223 km (0.076 R)
• M15: 13,314,360 km (0.106 R)
• M16: 14,843,699 km (0.077 R)
• M17: 16,014,901 km (0.073 R)
• M18: 17,885,772 km (0.116 R)
• M19: 18,688,065 km (0.089 R)
• M20: 22,305,192 km (0.09 R)
• M21: 28,468,176 km (0.114 R)
• M22: 31,937,051 km (0.113 R)
• M23: 32,577,031 km (0.09 R)
• M24: 35,792,039 km (0.106 R)
• M25: 36,482,732 km (0.107 R)
• M26: 36,831,295 km (0.109 R)
• M27: 40,069,640 km (0.111 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.3

Radius: 10

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 9.26 AU - 12.08 AU

Year: 12193 Days

Day: 9 Hours

Environment

Temp: -173 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 38,583,676 km

• M1: 126,111 km (0.103 R)
• M2: 455,675 km (0.109 R)
• M3: 2,088,237 km (0.058 R)
• M4: 2,423,336 km (0.068 R)
• M5: 3,246,573 km (0.117 R)
• M6: 3,723,192 km (0.079 R)
• M7: 4,989,687 km (0.118 R)
• M8: 6,350,130 km (0.045 R)
• M9: 7,209,271 km (0.062 R)
• M10: 8,768,380 km (0.118 R)
• M11: 9,559,005 km (0.089 R)
• M12: 9,971,745 km (0.105 R)
• M13: 11,383,500 km (0.069 R)
• M14: 12,649,098 km (0.093 R)
• M15: 13,035,210 km (0.09 R)
• M16: 14,419,440 km (0.093 R)
• M17: 15,645,843 km (0.107 R)
• M18: 16,155,523 km (0.062 R)
• M19: 17,073,755 km (0.111 R)
• M20: 22,035,467 km (0.082 R)
• M21: 22,595,262 km (0.063 R)
• M22: 24,586,709 km (0.095 R)
• M23: 28,915,473 km (0.095 R)
• M24: 34,900,435 km (0.053 R)
• M25: 36,321,914 km (0.104 R)
• M26: 36,766,968 km (0.097 R)

Kuiper Belt

Range: 31.4 - 47.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 387 - 19,972 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit