🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.51 AU - 0.55 AU

Year: 140 Days

Day: 26.9 Hours

Environment

Temp: 178 °C

Axial Tilt: 31.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 71,103,920 km

• M1: 39,494 km (0.072 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.07

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.46 AU - 0.74 AU

Year: 168 Days

Day: 35.3 Hours

Environment

Temp: 220 °C

Axial Tilt: 37.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.79 AU - 1.29 AU

Year: 384 Days

Day: 40.2 Hours

Environment

Temp: 24 °C

Axial Tilt: 22.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.9

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.22 AU - 1.32 AU

Year: 518 Days

Day: 31.8 Hours

Environment

Temp: 15 °C

Axial Tilt: 3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Asteroid Belt

Center: 6.31 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 11.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.8

Radius: 10.8

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 8.99 AU - 13.69 AU

Year: 13811 Days

Day: 13.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,103,920 km

• M1: 143,764 km (0.1 R)
• M2: 646,113 km (0.08 R)
• M3: 1,737,430 km (0.096 R)
• M4: 2,971,911 km (0.116 R)
• M5: 4,209,684 km (0.025 R)
• M6: 4,965,752 km (0.055 R)
• M7: 6,193,053 km (0.106 R)
• M8: 7,225,278 km (0.099 R)
• M9: 9,661,479 km (0.096 R)
• M10: 10,029,939 km (0.09 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 600.1

Radius: 7.8

Gravity: 9.86 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 9.81 AU - 15.73 AU

Year: 16504 Days

Day: 21.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 71,103,920 km

• M1: 100,231 km (0.103 R)
• M2: 344,524 km (0.071 R)
• M3: 778,059 km (0.111 R)
• M4: 1,037,461 km (0.075 R)
• M5: 1,427,014 km (0.091 R)
• M6: 1,772,436 km (0.119 R)
• M7: 2,212,403 km (0.086 R)
• M8: 2,839,068 km (0.059 R)
• M9: 3,662,006 km (0.09 R)
• M10: 4,251,721 km (0.111 R)
• M11: 6,822,112 km (0.113 R)
• M12: 8,680,865 km (0.11 R)
• M13: 9,564,540 km (0.098 R)
• M14: 11,208,471 km (0.083 R)
• M15: 12,255,357 km (0.101 R)
• M16: 12,704,749 km (0.033 R)
• M17: 13,165,211 km (0.109 R)
• M18: 13,568,676 km (0.099 R)
• M19: 14,400,291 km (0.03 R)
• M20: 16,164,948 km (0.119 R)
• M21: 18,400,239 km (0.1 R)
• M22: 19,853,582 km (0.096 R)
• M23: 21,752,578 km (0.098 R)
• M24: 25,594,849 km (0.056 R)
• M25: 27,185,823 km (0.071 R)
• M26: 27,840,313 km (0.101 R)
• M27: 31,152,410 km (0.119 R)
• M28: 32,964,639 km (0.117 R)
• M29: 36,139,106 km (0.115 R)
• M30: 46,875,296 km (0.116 R)
• M31: 51,705,362 km (0.106 R)
• M32: 59,009,778 km (0.101 R)
• M33: 61,964,036 km (0.094 R)
• M34: 62,717,711 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 967.4

Radius: 7.8

Gravity: 15.9 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 12.16 AU - 14.34 AU

Year: 17443 Days

Day: 22.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 71,103,920 km

• M1: 96,939 km (0.058 R)
• M2: 486,193 km (0.088 R)
• M3: 838,496 km (0.091 R)
• M4: 2,156,603 km (0.102 R)
• M5: 4,643,069 km (0.036 R)
• M6: 6,071,579 km (0.067 R)
• M7: 8,333,200 km (0.069 R)
• M8: 9,942,873 km (0.069 R)
• M9: 12,284,229 km (0.105 R)
• M10: 12,557,694 km (0.089 R)
• M11: 13,619,091 km (0.044 R)
• M12: 16,326,513 km (0.118 R)
• M13: 17,246,540 km (0.075 R)
• M14: 17,762,653 km (0.107 R)
• M15: 19,837,126 km (0.042 R)
• M16: 22,370,866 km (0.063 R)
• M17: 29,025,577 km (0.054 R)
• M18: 30,373,753 km (0.03 R)
• M19: 44,277,529 km (0.089 R)
• M20: 49,084,258 km (0.066 R)
• M21: 49,600,520 km (0.069 R)
• M22: 51,347,524 km (0.117 R)
• M23: 59,718,572 km (0.114 R)
• M24: 68,097,848 km (0.025 R)
• M25: 74,702,594 km (0.099 R)
• M26: 76,302,843 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 305.7

Radius: 3.4

Gravity: 26.44 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 14.93 AU - 20.57 AU

Year: 27045 Days

Day: 16.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 71,103,920 km

• M1: 68,815 km (0.116 R)
• M2: 187,895 km (0.091 R)
• M3: 423,063 km (0.112 R)
• M4: 778,507 km (0.079 R)
• M5: 1,061,995 km (0.043 R)
• M6: 1,206,806 km (0.096 R)
• M7: 1,410,110 km (0.093 R)
• M8: 1,552,676 km (0.119 R)
• M9: 2,414,809 km (0.094 R)
• M10: 4,728,041 km (0.084 R)
• M11: 4,904,117 km (0.071 R)
• M12: 7,233,356 km (0.092 R)
• M13: 9,468,648 km (0.118 R)
• M14: 9,636,048 km (0.104 R)
• M15: 11,800,729 km (0.09 R)
• M16: 12,190,581 km (0.114 R)
• M17: 12,859,134 km (0.106 R)
• M18: 15,391,527 km (0.087 R)
• M19: 16,411,036 km (0.057 R)
• M20: 19,557,528 km (0.029 R)
• M21: 21,414,935 km (0.088 R)
• M22: 24,836,687 km (0.116 R)
• M23: 31,113,664 km (0.068 R)
• M24: 31,359,902 km (0.064 R)
• M25: 36,562,468 km (0.08 R)
• M26: 39,080,200 km (0.091 R)
• M27: 40,968,873 km (0.087 R)
• M28: 45,557,488 km (0.084 R)
• M29: 46,034,406 km (0.099 R)
• M30: 53,769,065 km (0.061 R)
• M31: 56,102,044 km (0.065 R)
• M32: 59,631,806 km (0.094 R)
• M33: 61,547,706 km (0.11 R)
• M34: 63,504,296 km (0.082 R)

Kuiper Belt

Range: 30.3 - 55.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 346 - 14,656 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit