🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.29

Radius: 1.39

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.51 AU - 0.75 AU

Year: 189 Days

Day: 36 Hours

Environment

Temp: 133 °C

Axial Tilt: 116.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.24

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.66 AU - 0.76 AU

Year: 227 Days

Day: 37.8 Hours

Environment

Temp: 176 °C

Axial Tilt: 37.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 39,263,941 km

• M1: 173,534 km (0.109 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.24 AU - 1.66 AU

Year: 661 Days

Day: 44.8 Hours

Environment

Temp: -45 °C

Axial Tilt: 13.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.56 AU - 1.86 AU

Year: 847 Days

Day: 17.1 Hours

Environment

Temp: -67 °C

Axial Tilt: 38.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 39,263,941 km

• M1: 920,027 km (0.064 R)

Asteroid Belt

Center: 3.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 335.2

Radius: 12.2

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 4.22 AU - 5.84 AU

Year: 4273 Days

Day: 6.4 Hours

Environment

Temp: -151 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 39,263,941 km

• M1: 151,692 km (0.114 R)
• M2: 543,190 km (0.111 R)
• M3: 1,032,973 km (0.072 R)
• M4: 1,939,536 km (0.03 R)
• M5: 3,024,121 km (0.056 R)
• M6: 4,154,333 km (0.08 R)
• M7: 4,543,587 km (0.071 R)
• M8: 7,449,376 km (0.115 R)
• M9: 8,326,767 km (0.073 R)
• M10: 11,250,508 km (0.074 R)
• M11: 11,669,232 km (0.062 R)
• M12: 14,065,491 km (0.103 R)
• M13: 17,045,181 km (0.104 R)
• M14: 19,689,922 km (0.106 R)
• M15: 20,670,686 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680.8

Radius: 8.9

Gravity: 8.59 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 4.41 AU - 6.29 AU

Year: 4687 Days

Day: 9.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 39,263,941 km

• M1: 111,002 km (0.076 R)
• M2: 664,065 km (0.08 R)
• M3: 950,694 km (0.099 R)
• M4: 1,375,403 km (0.036 R)
• M5: 1,751,492 km (0.097 R)
• M6: 2,034,830 km (0.04 R)
• M7: 2,510,103 km (0.114 R)
• M8: 2,819,022 km (0.067 R)
• M9: 4,223,746 km (0.067 R)
• M10: 6,929,822 km (0.097 R)
• M11: 7,577,282 km (0.096 R)
• M12: 8,339,184 km (0.116 R)
• M13: 8,642,419 km (0.054 R)
• M14: 9,638,142 km (0.073 R)
• M15: 10,228,156 km (0.03 R)
• M16: 11,856,230 km (0.113 R)
• M17: 13,390,655 km (0.11 R)
• M18: 13,807,285 km (0.113 R)
• M19: 14,340,153 km (0.095 R)
• M20: 15,333,931 km (0.079 R)
• M21: 17,457,922 km (0.11 R)
• M22: 18,462,172 km (0.034 R)
• M23: 20,107,599 km (0.106 R)
• M24: 23,311,836 km (0.117 R)
• M25: 23,991,160 km (0.083 R)
• M26: 25,548,175 km (0.101 R)
• M27: 26,028,085 km (0.077 R)
• M28: 28,177,657 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.5

Radius: 12.8

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 5.85 AU - 7.97 AU

Year: 6880 Days

Day: 5.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 39,263,941 km

• M1: 159,172 km (0.104 R)
• M2: 581,337 km (0.114 R)
• M3: 1,821,504 km (0.043 R)
• M4: 2,718,642 km (0.119 R)
• M5: 3,333,789 km (0.088 R)
• M6: 3,794,400 km (0.101 R)
• M7: 4,788,029 km (0.095 R)
• M8: 5,315,960 km (0.101 R)
• M9: 6,665,184 km (0.102 R)
• M10: 7,439,353 km (0.067 R)
• M11: 8,231,324 km (0.095 R)
• M12: 8,733,075 km (0.057 R)
• M13: 10,898,354 km (0.044 R)
• M14: 12,079,130 km (0.119 R)
• M15: 12,618,431 km (0.105 R)
• M16: 13,919,932 km (0.055 R)
• M17: 14,938,095 km (0.075 R)
• M18: 16,459,356 km (0.12 R)
• M19: 21,018,052 km (0.092 R)
• M20: 25,556,253 km (0.119 R)
• M21: 26,807,938 km (0.088 R)
• M22: 28,666,542 km (0.116 R)
• M23: 29,144,358 km (0.119 R)
• M24: 31,714,898 km (0.1 R)
• M25: 33,264,882 km (0.074 R)
• M26: 33,898,878 km (0.104 R)
• M27: 35,409,367 km (0.064 R)
• M28: 37,872,945 km (0.115 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: 469 - 17,840 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit