🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.7 AU - 1.14 AU

Year: 312 Days

Day: 44.5 Hours

Environment

Temp: 128 °C

Axial Tilt: 41 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 20,321,789 km

• M1: 159,172 km (0.103 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.31

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.02 AU - 1.08 AU

Year: 380 Days

Day: 40 Hours

Environment

Temp: 84 °C

Axial Tilt: 19.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 20,321,789 km

• M1: 99,931 km (0.097 R)
• M2: 157,527 km (0.049 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.18

Radius: 0.5

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.93 AU - 1.45 AU

Year: 458 Days

Day: 35.9 Hours

Environment

Temp: 25 °C

Axial Tilt: 37.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 3.5 AU - 3.82 AU

Year: 2472 Days

Day: 41.6 Hours

Environment

Temp: -117 °C

Axial Tilt: 0.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.23 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.1

Radius: 8

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 6.32 AU - 7.28 AU

Year: 6261 Days

Day: 13.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 20,321,789 km

• M1: 99,483 km (0.087 R)
• M2: 563,685 km (0.082 R)
• M3: 935,585 km (0.046 R)
• M4: 1,277,267 km (0.051 R)
• M5: 1,903,483 km (0.12 R)
• M6: 2,844,454 km (0.117 R)
• M7: 3,132,280 km (0.038 R)
• M8: 4,330,559 km (0.077 R)
• M9: 6,102,546 km (0.085 R)
• M10: 6,606,092 km (0.044 R)
• M11: 8,154,131 km (0.103 R)
• M12: 8,469,334 km (0.034 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.9

Radius: 13.1

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 6.82 AU - 7.84 AU

Year: 7007 Days

Day: 14.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 20,321,789 km

• M1: 163,361 km (0.105 R)
• M2: 1,095,804 km (0.101 R)
• M3: 1,509,891 km (0.099 R)
• M4: 2,523,417 km (0.071 R)
• M5: 2,949,172 km (0.061 R)
• M6: 3,378,369 km (0.109 R)
• M7: 5,345,730 km (0.078 R)
• M8: 6,022,361 km (0.099 R)
• M9: 6,434,204 km (0.105 R)
• M10: 7,945,592 km (0.094 R)
• M11: 8,442,257 km (0.116 R)
• M12: 8,871,902 km (0.117 R)
• M13: 12,247,727 km (0.075 R)
• M14: 14,131,613 km (0.091 R)
• M15: 14,862,399 km (0.103 R)
• M16: 15,554,289 km (0.098 R)
• M17: 17,899,535 km (0.043 R)
• M18: 20,471,571 km (0.063 R)
• M19: 22,864,688 km (0.104 R)
• M20: 23,449,017 km (0.081 R)
• M21: 26,795,971 km (0.09 R)
• M22: 28,295,988 km (0.111 R)
• M23: 29,555,603 km (0.104 R)
• M24: 30,349,070 km (0.082 R)
• M25: 33,988,487 km (0.071 R)
• M26: 36,646,093 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 495.6

Radius: 9.6

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 9.24 AU - 9.98 AU

Year: 10519 Days

Day: 8.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 20,321,789 km

• M1: 139,724 km (0.069 R)
• M2: 973,882 km (0.114 R)
• M3: 1,366,427 km (0.082 R)
• M4: 2,386,086 km (0.107 R)
• M5: 3,068,103 km (0.105 R)
• M6: 3,698,059 km (0.061 R)
• M7: 4,439,915 km (0.077 R)
• M8: 4,816,752 km (0.12 R)
• M9: 7,344,507 km (0.094 R)
• M10: 7,790,160 km (0.077 R)
• M11: 8,869,957 km (0.107 R)
• M12: 10,344,094 km (0.081 R)
• M13: 13,529,631 km (0.107 R)
• M14: 15,739,491 km (0.034 R)
• M15: 18,920,690 km (0.116 R)
• M16: 21,673,889 km (0.099 R)
• M17: 24,504,281 km (0.101 R)
• M18: 27,766,113 km (0.058 R)
• M19: 28,156,414 km (0.115 R)
• M20: 28,748,672 km (0.092 R)
• M21: 29,349,307 km (0.117 R)
• M22: 30,265,893 km (0.071 R)
• M23: 31,201,329 km (0.116 R)
• M24: 36,519,084 km (0.102 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.9

Radius: 13.1

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 8.93 AU - 11.93 AU

Year: 11894 Days

Day: 12.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 20,321,789 km

• M1: 163,062 km (0.095 R)
• M2: 799,002 km (0.097 R)
• M3: 2,202,829 km (0.05 R)
• M4: 2,948,574 km (0.06 R)
• M5: 3,896,127 km (0.104 R)
• M6: 4,649,203 km (0.045 R)
• M7: 5,547,089 km (0.085 R)
• M8: 6,171,810 km (0.098 R)
• M9: 7,256,694 km (0.084 R)
• M10: 7,813,347 km (0.101 R)
• M11: 8,232,820 km (0.092 R)
• M12: 11,116,019 km (0.12 R)
• M13: 15,707,328 km (0.054 R)
• M14: 16,430,185 km (0.102 R)
• M15: 18,053,920 km (0.112 R)

Kuiper Belt

Range: 31.1 - 51.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 398 - 14,401 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit