🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.57 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.14

Radius: 1.05

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.89 AU - 1.39 AU

Year: 430 Days

Day: 40.9 Hours

Environment

Temp: 18 °C

Axial Tilt: 32.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 86,587,455 km

• M1: 30,518 km (0.107 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.96 AU - 1.36 AU

Year: 441 Days

Day: 37.1 Hours

Environment

Temp: 41 °C

Axial Tilt: 33.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 86,587,455 km

• M1: 142,567 km (0.087 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.56

Radius: 0.79

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.72 AU - 1.86 AU

Year: 846 Days

Day: 27 Hours

Environment

Temp: -37 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.76

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 3.4 AU - 5.1 AU

Year: 3094 Days

Day: 24.4 Hours

Environment

Temp: -113 °C

Axial Tilt: 4.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 671.4

Radius: 10.5

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 4.83 AU - 6.75 AU

Year: 4919 Days

Day: 14.8 Hours

Environment

Temp: -133 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 86,587,455 km

• M1: 130,599 km (0.101 R)
• M2: 523,892 km (0.079 R)
• M3: 952,340 km (0.08 R)
• M4: 1,829,582 km (0.112 R)
• M5: 2,226,764 km (0.102 R)
• M6: 2,595,822 km (0.117 R)
• M7: 3,043,718 km (0.112 R)
• M8: 3,479,946 km (0.113 R)
• M9: 4,654,139 km (0.105 R)
• M10: 5,543,947 km (0.102 R)
• M11: 6,290,740 km (0.094 R)
• M12: 7,838,330 km (0.078 R)
• M13: 8,393,937 km (0.103 R)
• M14: 9,919,685 km (0.12 R)
• M15: 10,350,228 km (0.086 R)
• M16: 11,669,831 km (0.109 R)
• M17: 15,255,542 km (0.083 R)
• M18: 19,717,897 km (0.1 R)
• M19: 20,261,984 km (0.049 R)
• M20: 21,380,079 km (0.04 R)
• M21: 24,045,763 km (0.088 R)
• M22: 28,968,281 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 333.4

Radius: 14.4

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 10.17 AU - 13.51 AU

Year: 14386 Days

Day: 10.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 86,587,455 km

• M1: 180,565 km (0.065 R)
• M2: 739,013 km (0.045 R)
• M3: 1,196,484 km (0.098 R)
• M4: 1,675,197 km (0.111 R)
• M5: 2,868,390 km (0.058 R)
• M6: 3,551,154 km (0.105 R)
• M7: 4,038,395 km (0.088 R)
• M8: 5,023,197 km (0.055 R)
• M9: 5,708,056 km (0.11 R)
• M10: 8,451,233 km (0.079 R)
• M11: 9,044,089 km (0.116 R)
• M12: 9,567,233 km (0.025 R)
• M13: 11,368,241 km (0.082 R)
• M14: 12,148,544 km (0.098 R)
• M15: 15,972,864 km (0.118 R)
• M16: 18,724,567 km (0.117 R)
• M17: 23,512,447 km (0.113 R)
• M18: 24,413,325 km (0.109 R)
• M19: 25,336,943 km (0.112 R)
• M20: 26,092,561 km (0.071 R)
• M21: 31,375,909 km (0.058 R)
• M22: 36,729,568 km (0.091 R)
• M23: 39,938,293 km (0.1 R)
• M24: 40,576,178 km (0.112 R)
• M25: 42,662,919 km (0.11 R)
• M26: 44,410,521 km (0.117 R)
• M27: 44,957,750 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 20.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 386

Radius: 7.8

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 16.09 AU - 24.55 AU

Year: 32343 Days

Day: 15.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 86,587,455 km

• M1: 98,884 km (0.089 R)
• M2: 738,265 km (0.088 R)
• M3: 1,307,635 km (0.098 R)
• M4: 1,780,514 km (0.115 R)
• M5: 2,228,260 km (0.116 R)
• M6: 3,121,210 km (0.101 R)
• M7: 3,966,438 km (0.096 R)
• M8: 4,880,481 km (0.112 R)
• M9: 5,715,835 km (0.086 R)
• M10: 8,681,464 km (0.087 R)
• M11: 11,435,560 km (0.113 R)
• M12: 18,407,719 km (0.106 R)
• M13: 19,922,397 km (0.053 R)
• M14: 21,111,700 km (0.109 R)
• M15: 22,242,660 km (0.077 R)
• M16: 25,532,018 km (0.114 R)
• M17: 29,763,244 km (0.085 R)
• M18: 30,922,329 km (0.112 R)
• M19: 38,970,545 km (0.104 R)
• M20: 39,582,699 km (0.118 R)
• M21: 43,554,971 km (0.11 R)
• M22: 54,536,053 km (0.093 R)
• M23: 60,455,641 km (0.08 R)
• M24: 64,631,217 km (0.11 R)
• M25: 71,248,978 km (0.079 R)
• M26: 78,790,655 km (0.118 R)
• M27: 79,769,175 km (0.095 R)

Kuiper Belt

Range: 31.1 - 46.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 160 - 14,299 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit