🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.66 AU - 1.04 AU

Year: 294 Days

Day: 31.1 Hours

Environment

Temp: 69 °C

Axial Tilt: 17.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 46,210,213 km

• M1: 33,510 km (0.037 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.47

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.67 AU - 1.81 AU

Year: 860 Days

Day: 21.7 Hours

Environment

Temp: -53 °C

Axial Tilt: 42 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,210,213 km

• M1: 369,507 km (0.115 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.84 AU - 1.96 AU

Year: 981 Days

Day: 16.9 Hours

Environment

Temp: -66 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,210,213 km

• M1: 90,208 km (0.12 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.44 AU - 2.6 AU

Year: 1499 Days

Day: 46.4 Hours

Environment

Temp: -98 °C

Axial Tilt: 24.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.62

Radius: 1.21

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 2.63 AU - 2.83 AU

Year: 1690 Days

Day: 26.5 Hours

Environment

Temp: -106 °C

Axial Tilt: 38.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 46,210,213 km

• M1: 38,147 km (0.063 R)
• M2: 1,652,009 km (0.091 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.11 AU - 5.11 AU

Year: 3122 Days

Day: 46.8 Hours

Environment

Temp: -133 °C

Axial Tilt: 27.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.95 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.4

Radius: 13.8

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 4.53 AU - 7.03 AU

Year: 5207 Days

Day: 10 Hours

Environment

Temp: -152 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 46,210,213 km

• M1: 171,589 km (0.053 R)
• M2: 750,084 km (0.07 R)
• M3: 1,429,108 km (0.061 R)
• M4: 2,601,956 km (0.113 R)
• M5: 3,394,076 km (0.101 R)
• M6: 5,067,029 km (0.115 R)
• M7: 5,663,027 km (0.112 R)
• M8: 8,490,278 km (0.03 R)
• M9: 13,701,220 km (0.04 R)
• M10: 15,848,698 km (0.114 R)
• M11: 17,632,203 km (0.097 R)
• M12: 21,962,463 km (0.045 R)
• M13: 22,709,555 km (0.101 R)
• M14: 29,399,273 km (0.079 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.6

Radius: 10.1

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 7.28 AU - 11.4 AU

Year: 10697 Days

Day: 11.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 46,210,213 km

• M1: 130,300 km (0.117 R)
• M2: 957,127 km (0.073 R)
• M3: 2,011,942 km (0.1 R)
• M4: 2,471,207 km (0.028 R)
• M5: 2,827,849 km (0.068 R)
• M6: 3,557,587 km (0.088 R)
• M7: 4,510,525 km (0.1 R)
• M8: 5,102,783 km (0.08 R)
• M9: 6,056,021 km (0.109 R)
• M10: 6,709,614 km (0.109 R)
• M11: 7,852,243 km (0.116 R)
• M12: 9,585,932 km (0.114 R)
• M13: 13,144,118 km (0.111 R)
• M14: 13,739,068 km (0.072 R)
• M15: 15,099,362 km (0.101 R)
• M16: 20,859,030 km (0.075 R)
• M17: 21,445,752 km (0.11 R)
• M18: 23,586,348 km (0.068 R)
• M19: 26,886,178 km (0.091 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 821

Radius: 5

Gravity: 32.84 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 12.81 AU - 13.15 AU

Year: 17524 Days

Day: 23.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 46,210,213 km

• M1: 62,233 km (0.079 R)
• M2: 316,699 km (0.097 R)
• M3: 522,845 km (0.115 R)
• M4: 915,689 km (0.111 R)
• M5: 1,332,019 km (0.108 R)
• M6: 2,222,725 km (0.09 R)
• M7: 3,125,100 km (0.099 R)
• M8: 3,426,689 km (0.113 R)
• M9: 4,516,360 km (0.034 R)
• M10: 5,309,228 km (0.043 R)
• M11: 5,698,632 km (0.086 R)
• M12: 6,148,921 km (0.047 R)
• M13: 7,119,811 km (0.09 R)
• M14: 8,087,560 km (0.114 R)
• M15: 9,987,004 km (0.112 R)
• M16: 10,640,597 km (0.071 R)
• M17: 12,297,843 km (0.115 R)
• M18: 17,430,994 km (0.114 R)
• M19: 18,028,787 km (0.078 R)
• M20: 23,518,880 km (0.091 R)
• M21: 26,416,441 km (0.087 R)
• M22: 26,752,438 km (0.106 R)
• M23: 29,184,450 km (0.109 R)
• M24: 29,423,508 km (0.093 R)
• M25: 36,937,210 km (0.038 R)
• M26: 40,239,733 km (0.112 R)
• M27: 52,720,534 km (0.046 R)
• M28: 53,968,629 km (0.106 R)
• M29: 55,418,980 km (0.099 R)
• M30: 58,019,141 km (0.1 R)
• M31: 69,234,044 km (0.094 R)
• M32: 71,161,314 km (0.111 R)

Planet 10 - Ice Giant

Semi-Major Axis: 14.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 158.6

Radius: 3.9

Gravity: 10.43 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 13.3 AU - 14.74 AU

Year: 19672 Days

Day: 15.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 46,210,213 km

• M1: 55,052 km (0.113 R)
• M2: 540,048 km (0.087 R)
• M3: 1,463,965 km (0.119 R)
• M4: 1,662,631 km (0.115 R)
• M5: 2,980,738 km (0.111 R)
• M6: 3,822,076 km (0.084 R)
• M7: 4,143,861 km (0.07 R)
• M8: 11,481,487 km (0.119 R)
• M9: 12,961,160 km (0.106 R)
• M10: 13,746,548 km (0.12 R)
• M11: 15,213,056 km (0.092 R)
• M12: 16,992,673 km (0.077 R)
• M13: 20,152,778 km (0.119 R)
• M14: 20,714,967 km (0.081 R)
• M15: 21,702,911 km (0.074 R)
• M16: 39,751,445 km (0.063 R)
• M17: 43,762,015 km (0.059 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 502 - 17,343 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit