🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.71 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.17 AU - 1.65 AU

Year: 588 Days

Day: 33.7 Hours

Environment

Temp: -9 °C

Axial Tilt: 23.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.2

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.53 AU - 1.61 AU

Year: 691 Days

Day: 45.7 Hours

Environment

Temp: 1 °C

Axial Tilt: 25.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.69 AU - 1.95 AU

Year: 863 Days

Day: 31.8 Hours

Environment

Temp: -40 °C

Axial Tilt: 11.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 9.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891

Radius: 11.6

Gravity: 6.62 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 8.91 AU - 10.25 AU

Year: 10421 Days

Day: 6.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 75,767,460 km

• M1: 144,512 km (0.09 R)
• M2: 523,892 km (0.101 R)
• M3: 1,142,479 km (0.085 R)
• M4: 1,918,443 km (0.096 R)
• M5: 3,814,147 km (0.099 R)
• M6: 5,163,670 km (0.106 R)
• M7: 5,820,554 km (0.114 R)
• M8: 7,134,771 km (0.113 R)
• M9: 7,513,553 km (0.088 R)
• M10: 8,497,009 km (0.098 R)
• M11: 10,077,810 km (0.06 R)
• M12: 10,501,920 km (0.105 R)
• M13: 12,081,374 km (0.089 R)
• M14: 16,567,515 km (0.092 R)
• M15: 17,159,325 km (0.099 R)
• M16: 20,332,146 km (0.084 R)
• M17: 22,234,432 km (0.072 R)
• M18: 22,954,746 km (0.107 R)
• M19: 24,919,565 km (0.056 R)
• M20: 26,190,698 km (0.115 R)
• M21: 27,504,616 km (0.081 R)
• M22: 34,142,722 km (0.096 R)
• M23: 37,577,040 km (0.056 R)
• M24: 42,048,670 km (0.106 R)
• M25: 45,843,071 km (0.102 R)
• M26: 47,304,642 km (0.097 R)
• M27: 52,032,533 km (0.113 R)
• M28: 52,664,734 km (0.082 R)
• M29: 53,462,090 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.9

Radius: 9.9

Gravity: 10.17 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 12.99 AU - 13.01 AU

Year: 16474 Days

Day: 14.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 75,767,460 km

• M1: 123,269 km (0.044 R)
• M2: 755,918 km (0.12 R)
• M3: 1,662,182 km (0.063 R)
• M4: 2,084,946 km (0.091 R)
• M5: 3,096,227 km (0.048 R)
• M6: 4,080,282 km (0.119 R)
• M7: 5,148,112 km (0.037 R)
• M8: 6,655,011 km (0.109 R)
• M9: 7,154,967 km (0.055 R)
• M10: 11,194,708 km (0.107 R)
• M11: 12,708,489 km (0.099 R)
• M12: 14,882,295 km (0.107 R)
• M13: 16,544,178 km (0.046 R)
• M14: 17,804,540 km (0.108 R)
• M15: 22,068,827 km (0.086 R)
• M16: 22,976,139 km (0.116 R)
• M17: 26,855,361 km (0.102 R)
• M18: 29,671,092 km (0.111 R)
• M19: 37,136,175 km (0.107 R)
• M20: 38,274,914 km (0.095 R)
• M21: 39,583,746 km (0.094 R)
• M22: 48,911,622 km (0.08 R)
• M23: 52,378,702 km (0.106 R)
• M24: 68,099,494 km (0.105 R)

Kuiper Belt

Range: 31.2 - 52.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 297 - 18,466 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit