🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.12

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.58 AU - 0.6 AU

Year: 159 Days

Day: 33.6 Hours

Environment

Temp: 234 °C

Axial Tilt: 6.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.16

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.57 AU - 0.93 AU

Year: 227 Days

Day: 28.4 Hours

Environment

Temp: 220 °C

Axial Tilt: 2.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.87

Radius: 0.95

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.9 AU - 1.02 AU

Year: 329 Days

Day: 25.7 Hours

Environment

Temp: 177 °C

Axial Tilt: 23.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 33,983,683 km

• M1: 22,589 km (0.111 R)
• M2: 177,124 km (0.069 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 2.78 AU - 3.98 AU

Year: 2174 Days

Day: 41.8 Hours

Environment

Temp: -107 °C

Axial Tilt: 156 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.2

Radius: 12.1

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 4.84 AU - 6.7 AU

Year: 4849 Days

Day: 10.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 33,983,683 km

• M1: 150,495 km (0.11 R)
• M2: 537,655 km (0.091 R)
• M3: 1,627,924 km (0.119 R)
• M4: 2,100,653 km (0.065 R)
• M5: 2,527,306 km (0.104 R)
• M6: 2,917,906 km (0.063 R)
• M7: 4,566,176 km (0.106 R)
• M8: 5,346,927 km (0.067 R)
• M9: 5,724,811 km (0.114 R)
• M10: 6,183,179 km (0.081 R)
• M11: 6,832,584 km (0.116 R)
• M12: 7,243,678 km (0.082 R)
• M13: 8,577,344 km (0.093 R)
• M14: 9,261,455 km (0.099 R)
• M15: 9,808,833 km (0.113 R)
• M16: 10,602,300 km (0.057 R)
• M17: 12,569,213 km (0.102 R)
• M18: 13,083,680 km (0.118 R)
• M19: 14,431,856 km (0.117 R)
• M20: 15,575,382 km (0.091 R)
• M21: 16,532,809 km (0.056 R)
• M22: 17,088,565 km (0.081 R)
• M23: 17,720,466 km (0.118 R)
• M24: 18,367,926 km (0.096 R)
• M25: 20,195,114 km (0.119 R)
• M26: 22,589,428 km (0.03 R)
• M27: 24,844,616 km (0.096 R)
• M28: 25,820,443 km (0.12 R)
• M29: 26,317,706 km (0.119 R)
• M30: 28,196,356 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389

Radius: 10.9

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 6.56 AU - 9.22 AU

Year: 7753 Days

Day: 12.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 33,983,683 km

• M1: 136,433 km (0.03 R)
• M2: 563,086 km (0.045 R)
• M3: 1,590,674 km (0.074 R)
• M4: 2,084,497 km (0.071 R)
• M5: 2,958,298 km (0.052 R)
• M6: 4,036,899 km (0.085 R)
• M7: 4,639,928 km (0.069 R)
• M8: 5,963,570 km (0.054 R)
• M9: 7,022,872 km (0.113 R)
• M10: 8,597,988 km (0.067 R)
• M11: 10,719,286 km (0.119 R)
• M12: 11,287,907 km (0.086 R)
• M13: 12,127,750 km (0.075 R)
• M14: 13,655,742 km (0.045 R)
• M15: 18,197,384 km (0.049 R)
• M16: 18,666,673 km (0.111 R)
• M17: 19,007,008 km (0.085 R)
• M18: 22,030,680 km (0.1 R)
• M19: 25,947,152 km (0.119 R)
• M20: 27,320,461 km (0.08 R)
• M21: 32,215,901 km (0.086 R)
• M22: 33,200,854 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.1

Radius: 10.5

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 8.8 AU - 10.08 AU

Year: 10147 Days

Day: 10.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 33,983,683 km

• M1: 131,646 km (0.099 R)
• M2: 481,256 km (0.055 R)
• M3: 1,148,912 km (0.089 R)
• M4: 2,313,531 km (0.09 R)
• M5: 2,656,709 km (0.117 R)
• M6: 3,073,638 km (0.087 R)
• M7: 3,490,567 km (0.086 R)
• M8: 4,700,963 km (0.105 R)
• M9: 5,085,430 km (0.05 R)
• M10: 7,664,348 km (0.115 R)
• M11: 8,159,816 km (0.058 R)
• M12: 9,384,574 km (0.099 R)
• M13: 9,863,137 km (0.108 R)
• M14: 11,300,025 km (0.038 R)
• M15: 12,195,817 km (0.115 R)
• M16: 14,642,041 km (0.096 R)
• M17: 16,758,103 km (0.094 R)
• M18: 17,593,757 km (0.114 R)
• M19: 18,659,791 km (0.089 R)
• M20: 20,052,398 km (0.033 R)
• M21: 20,774,208 km (0.083 R)
• M22: 23,121,996 km (0.111 R)
• M23: 26,405,670 km (0.093 R)
• M24: 33,177,666 km (0.077 R)

Kuiper Belt

Range: 31.4 - 46.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 448 - 15,288 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit