🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.39 AU - 0.65 AU

Year: 138 Days

Day: 47.9 Hours

Environment

Temp: 216 °C

Axial Tilt: 35.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.86

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.63 AU - 0.65 AU

Year: 188 Days

Day: 41.7 Hours

Environment

Temp: 161 °C

Axial Tilt: 36.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.39

Radius: 1.14

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.74 AU - 0.84 AU

Year: 258 Days

Day: 23.7 Hours

Environment

Temp: 151 °C

Axial Tilt: 27.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 59,639,234 km

• M1: 120,277 km (0.069 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.33

Radius: 1.12

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.35 AU - 1.37 AU

Year: 582 Days

Day: 19.1 Hours

Environment

Temp: -33 °C

Axial Tilt: 5.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 59,639,234 km

• M1: 692,040 km (0.076 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.42

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 3.37 AU - 3.73 AU

Year: 2455 Days

Day: 46.7 Hours

Environment

Temp: -114 °C

Axial Tilt: 46.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.24

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 3.52 AU - 3.84 AU

Year: 2591 Days

Day: 35.9 Hours

Environment

Temp: -113 °C

Axial Tilt: 9.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.4 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.8

Radius: 10

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 4.22 AU - 6 AU

Year: 4240 Days

Day: 9.2 Hours

Environment

Temp: -147 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 59,639,234 km

• M1: 124,316 km (0.094 R)
• M2: 484,847 km (0.097 R)
• M3: 812,915 km (0.108 R)
• M4: 1,429,108 km (0.112 R)
• M5: 1,785,301 km (0.057 R)
• M6: 2,101,700 km (0.062 R)
• M7: 2,471,656 km (0.098 R)
• M8: 3,026,814 km (0.106 R)
• M9: 3,642,708 km (0.101 R)
• M10: 4,024,632 km (0.049 R)
• M11: 4,745,544 km (0.114 R)
• M12: 5,098,295 km (0.029 R)
• M13: 6,204,123 km (0.078 R)
• M14: 7,263,725 km (0.082 R)
• M15: 7,597,328 km (0.109 R)
• M16: 8,187,940 km (0.109 R)
• M17: 8,734,122 km (0.111 R)
• M18: 9,265,793 km (0.119 R)
• M19: 9,778,764 km (0.117 R)
• M20: 10,991,105 km (0.109 R)
• M21: 11,656,217 km (0.116 R)
• M22: 12,920,918 km (0.11 R)
• M23: 15,445,980 km (0.045 R)
• M24: 16,280,437 km (0.113 R)
• M25: 17,618,141 km (0.073 R)
• M26: 20,051,500 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.7

Radius: 13

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 5.08 AU - 7.02 AU

Year: 5463 Days

Day: 10.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,639,234 km

• M1: 180,864 km (0.103 R)
• M2: 2,278,974 km (0.103 R)
• M3: 3,801,132 km (0.063 R)
• M4: 4,407,602 km (0.071 R)
• M5: 6,428,520 km (0.036 R)
• M6: 13,037,006 km (0.064 R)
• M7: 15,147,532 km (0.103 R)
• M8: 16,570,657 km (0.113 R)
• M9: 18,304,197 km (0.05 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 809.3

Radius: 7.3

Gravity: 15.19 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 13.73 AU - 19.87 AU

Year: 25278 Days

Day: 24.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 59,639,234 km

• M1: 106,364 km (0.085 R)
• M2: 414,237 km (0.089 R)
• M3: 985,850 km (0.111 R)
• M4: 1,422,077 km (0.089 R)
• M5: 2,943,787 km (0.109 R)
• M6: 3,466,631 km (0.105 R)
• M7: 4,049,764 km (0.089 R)
• M8: 4,364,967 km (0.104 R)
• M9: 5,327,180 km (0.113 R)
• M10: 5,620,392 km (0.077 R)
• M11: 5,880,244 km (0.102 R)
• M12: 9,056,655 km (0.091 R)
• M13: 10,031,734 km (0.116 R)
• M14: 14,395,205 km (0.101 R)
• M15: 15,047,751 km (0.096 R)
• M16: 15,549,951 km (0.075 R)
• M17: 16,587,861 km (0.068 R)
• M18: 18,801,161 km (0.065 R)
• M19: 19,778,933 km (0.037 R)
• M20: 21,518,158 km (0.045 R)
• M21: 22,479,025 km (0.08 R)
• M22: 27,344,097 km (0.036 R)
• M23: 34,716,729 km (0.095 R)
• M24: 40,358,663 km (0.089 R)
• M25: 41,002,981 km (0.064 R)
• M26: 42,311,963 km (0.107 R)
• M27: 43,312,024 km (0.067 R)
• M28: 52,838,866 km (0.062 R)
• M29: 59,841,093 km (0.096 R)
• M30: 60,468,507 km (0.088 R)
• M31: 62,377,375 km (0.103 R)
• M32: 64,107,325 km (0.1 R)
• M33: 64,984,268 km (0.117 R)
• M34: 70,880,219 km (0.101 R)
• M35: 81,909,921 km (0.1 R)
• M36: 86,624,049 km (0.12 R)
• M37: 91,239,442 km (0.041 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 204.3

Radius: 5.1

Gravity: 7.85 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 15.78 AU - 17.94 AU

Year: 25413 Days

Day: 19.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 59,639,234 km

• M1: 96,341 km (0.045 R)
• M2: 377,286 km (0.104 R)
• M3: 807,380 km (0.102 R)
• M4: 2,751,404 km (0.089 R)
• M5: 3,180,002 km (0.04 R)
• M6: 4,477,315 km (0.111 R)
• M7: 4,866,568 km (0.1 R)
• M8: 5,313,268 km (0.119 R)
• M9: 6,986,969 km (0.11 R)
• M10: 7,510,412 km (0.102 R)
• M11: 14,818,716 km (0.118 R)
• M12: 15,317,625 km (0.076 R)
• M13: 16,198,906 km (0.111 R)
• M14: 16,424,500 km (0.042 R)
• M15: 18,061,998 km (0.099 R)
• M16: 20,761,791 km (0.088 R)
• M17: 21,117,086 km (0.062 R)
• M18: 24,598,527 km (0.088 R)
• M19: 25,398,577 km (0.098 R)
• M20: 28,010,257 km (0.099 R)
• M21: 31,959,491 km (0.071 R)
• M22: 32,552,347 km (0.062 R)
• M23: 34,251,330 km (0.109 R)
• M24: 35,627,032 km (0.072 R)
• M25: 38,089,263 km (0.041 R)
• M26: 42,062,583 km (0.08 R)
• M27: 47,829,282 km (0.06 R)
• M28: 48,917,157 km (0.107 R)
• M29: 50,180,511 km (0.12 R)
• M30: 52,279,669 km (0.11 R)
• M31: 52,937,151 km (0.057 R)
• M32: 55,112,155 km (0.102 R)
• M33: 56,479,629 km (0.094 R)
• M34: 58,220,799 km (0.061 R)
• M35: 58,573,251 km (0.049 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: 331 - 18,520 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit