🌌 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: 0.51

Radius: 0.76

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.61 AU - 0.65 AU

Year: 185 Days

Day: 47.7 Hours

Environment

Temp: 177 °C

Axial Tilt: 36.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.12

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.76 AU - 0.82 AU

Year: 260 Days

Day: 29 Hours

Environment

Temp: 118 °C

Axial Tilt: 37 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.19

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.13 AU - 1.57 AU

Year: 582 Days

Day: 19 Hours

Environment

Temp: -33 °C

Axial Tilt: 18.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 38,102,639 km

• M1: 38,297 km (0.083 R)
• M2: 85,720 km (0.111 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 2.44 AU - 3.82 AU

Year: 2054 Days

Day: 45.7 Hours

Environment

Temp: -115 °C

Axial Tilt: 17.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502

Radius: 14.5

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 3.95 AU - 6.03 AU

Year: 4134 Days

Day: 5.3 Hours

Environment

Temp: -137 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 38,102,639 km

• M1: 180,265 km (0.117 R)
• M2: 659,278 km (0.095 R)
• M3: 1,149,211 km (0.061 R)
• M4: 1,625,082 km (0.12 R)
• M5: 2,085,843 km (0.072 R)
• M6: 2,715,052 km (0.105 R)
• M7: 3,431,326 km (0.107 R)
• M8: 3,928,141 km (0.105 R)
• M9: 4,872,403 km (0.073 R)
• M10: 5,372,957 km (0.103 R)
• M11: 6,160,141 km (0.117 R)
• M12: 6,777,232 km (0.079 R)
• M13: 7,931,380 km (0.096 R)
• M14: 9,439,326 km (0.049 R)
• M15: 10,382,990 km (0.059 R)
• M16: 11,959,751 km (0.042 R)
• M17: 12,412,285 km (0.079 R)
• M18: 14,337,759 km (0.12 R)
• M19: 15,319,121 km (0.11 R)
• M20: 16,070,551 km (0.098 R)
• M21: 19,263,269 km (0.045 R)
• M22: 20,651,238 km (0.074 R)
• M23: 22,037,562 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.9

Radius: 14.4

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 4.91 AU - 7.07 AU

Year: 5437 Days

Day: 8.2 Hours

Environment

Temp: -147 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 38,102,639 km

• M1: 179,069 km (0.097 R)
• M2: 1,002,306 km (0.094 R)
• M3: 2,064,002 km (0.09 R)
• M4: 3,051,946 km (0.026 R)
• M5: 3,804,423 km (0.097 R)
• M6: 4,447,844 km (0.104 R)
• M7: 5,682,176 km (0.077 R)
• M8: 6,437,944 km (0.108 R)
• M9: 7,040,225 km (0.088 R)
• M10: 9,953,195 km (0.084 R)
• M11: 11,611,188 km (0.069 R)
• M12: 12,414,678 km (0.119 R)
• M13: 13,543,544 km (0.11 R)
• M14: 14,132,960 km (0.095 R)
• M15: 14,842,353 km (0.032 R)
• M16: 17,861,836 km (0.108 R)
• M17: 20,878,328 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.4

Radius: 13

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 5.88 AU - 6.56 AU

Year: 5753 Days

Day: 7.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 38,102,639 km

• M1: 221,854 km (0.1 R)
• M2: 734,974 km (0.068 R)
• M3: 1,262,606 km (0.087 R)
• M4: 2,029,295 km (0.061 R)
• M5: 3,034,742 km (0.088 R)
• M6: 3,680,856 km (0.059 R)
• M7: 4,190,984 km (0.113 R)
• M8: 4,821,240 km (0.049 R)
• M9: 5,513,878 km (0.101 R)
• M10: 6,301,511 km (0.097 R)
• M11: 7,422,897 km (0.097 R)
• M12: 8,636,584 km (0.117 R)
• M13: 9,233,629 km (0.076 R)
• M14: 9,938,235 km (0.107 R)
• M15: 11,632,581 km (0.116 R)
• M16: 12,268,821 km (0.104 R)
• M17: 16,416,721 km (0.117 R)
• M18: 18,286,096 km (0.093 R)
• M19: 18,713,198 km (0.063 R)
• M20: 19,587,597 km (0.026 R)
• M21: 21,082,828 km (0.041 R)
• M22: 22,653,007 km (0.042 R)
• M23: 23,075,172 km (0.103 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394.7

Radius: 12.5

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 7.28 AU - 9.9 AU

Year: 9337 Days

Day: 5.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 38,102,639 km

• M1: 156,779 km (0.109 R)
• M2: 570,566 km (0.1 R)
• M3: 1,569,282 km (0.103 R)
• M4: 2,237,685 km (0.068 R)
• M5: 3,047,907 km (0.093 R)
• M6: 7,294,542 km (0.114 R)
• M7: 8,475,617 km (0.104 R)
• M8: 13,227,145 km (0.098 R)
• M9: 20,697,913 km (0.076 R)
• M10: 21,154,934 km (0.054 R)
• M11: 25,577,047 km (0.067 R)
• M12: 30,286,388 km (0.052 R)
• M13: 37,762,093 km (0.084 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 518 - 13,429 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit