🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.32

Radius: 1.12

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.85 AU - 1.11 AU

Year: 424 Days

Day: 41.1 Hours

Environment

Temp: -61 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.96 AU - 1.5 AU

Year: 596 Days

Day: 40.6 Hours

Environment

Temp: -73 °C

Axial Tilt: 14.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.39

Radius: 1.14

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.57 AU - 1.57 AU

Year: 859 Days

Day: 22.4 Hours

Environment

Temp: -103 °C

Axial Tilt: 0.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 32,368,544 km

• M1: 139,724 km (0.082 R)
• M2: 354,098 km (0.08 R)

Asteroid Belt

Center: 2.65 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.1

Radius: 11.7

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 3.67 AU - 3.77 AU

Year: 3132 Days

Day: 12.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 32,368,544 km

• M1: 146,008 km (0.07 R)
• M2: 512,373 km (0.103 R)
• M3: 1,300,155 km (0.043 R)
• M4: 1,904,381 km (0.067 R)
• M5: 2,487,813 km (0.11 R)
• M6: 3,427,138 km (0.109 R)
• M7: 4,033,458 km (0.107 R)
• M8: 4,771,723 km (0.056 R)
• M9: 6,932,814 km (0.045 R)
• M10: 8,139,471 km (0.089 R)
• M11: 9,221,213 km (0.106 R)
• M12: 11,706,482 km (0.11 R)
• M13: 12,401,514 km (0.106 R)
• M14: 12,880,077 km (0.065 R)
• M15: 14,608,531 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.5

Radius: 10.5

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 5.44 AU - 7.38 AU

Year: 7085 Days

Day: 5.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,368,544 km

• M1: 130,599 km (0.029 R)
• M2: 880,683 km (0.068 R)
• M3: 1,460,225 km (0.065 R)
• M4: 2,466,270 km (0.107 R)
• M5: 2,899,506 km (0.082 R)
• M6: 3,771,961 km (0.096 R)
• M7: 4,451,883 km (0.101 R)
• M8: 5,211,541 km (0.096 R)
• M9: 7,503,530 km (0.093 R)
• M10: 13,049,123 km (0.091 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 428.2

Radius: 6.8

Gravity: 9.26 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 8.32 AU - 11.34 AU

Year: 13455 Days

Day: 24.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 32,368,544 km

• M1: 84,672 km (0.104 R)
• M2: 580,141 km (0.118 R)
• M3: 817,852 km (0.081 R)
• M4: 1,179,280 km (0.056 R)
• M5: 1,485,507 km (0.119 R)
• M6: 2,277,927 km (0.099 R)
• M7: 2,908,033 km (0.051 R)
• M8: 3,275,894 km (0.106 R)
• M9: 3,521,384 km (0.063 R)
• M10: 4,781,746 km (0.108 R)
• M11: 5,001,805 km (0.075 R)
• M12: 5,844,041 km (0.116 R)
• M13: 6,856,070 km (0.091 R)
• M14: 9,965,612 km (0.096 R)
• M15: 10,855,420 km (0.047 R)
• M16: 12,434,874 km (0.027 R)
• M17: 15,625,797 km (0.09 R)
• M18: 23,295,979 km (0.096 R)
• M19: 23,839,318 km (0.113 R)
• M20: 24,391,035 km (0.066 R)
• M21: 31,470,904 km (0.112 R)
• M22: 31,801,665 km (0.095 R)
• M23: 33,034,351 km (0.095 R)
• M24: 47,305,240 km (0.029 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 561.1

Radius: 3.1

Gravity: 58.39 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 11.86 AU - 12.66 AU

Year: 18740 Days

Day: 16.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 32,368,544 km

• M1: 38,596 km (0.111 R)
• M2: 317,596 km (0.077 R)
• M3: 416,331 km (0.101 R)
• M4: 520,750 km (0.072 R)
• M5: 651,648 km (0.114 R)
• M6: 1,116,000 km (0.109 R)
• M7: 1,455,438 km (0.058 R)
• M8: 2,420,793 km (0.111 R)
• M9: 2,669,424 km (0.089 R)
• M10: 3,138,563 km (0.106 R)
• M11: 3,631,488 km (0.078 R)
• M12: 4,237,509 km (0.105 R)
• M13: 4,908,157 km (0.083 R)
• M14: 5,232,036 km (0.087 R)
• M15: 7,386,694 km (0.054 R)
• M16: 9,236,921 km (0.082 R)
• M17: 9,563,343 km (0.094 R)
• M18: 9,673,896 km (0.113 R)
• M19: 11,067,849 km (0.09 R)
• M20: 12,923,760 km (0.1 R)
• M21: 13,263,347 km (0.102 R)
• M22: 21,556,305 km (0.114 R)
• M23: 27,091,726 km (0.088 R)
• M24: 29,947,100 km (0.071 R)
• M25: 39,278,267 km (0.091 R)
• M26: 42,772,874 km (0.088 R)
• M27: 42,922,771 km (0.088 R)
• M28: 50,372,445 km (0.067 R)
• M29: 54,665,007 km (0.055 R)
• M30: 55,195,930 km (0.114 R)
• M31: 55,373,652 km (0.116 R)
• M32: 55,730,293 km (0.119 R)
• M33: 56,088,430 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 451

Radius: 5.8

Gravity: 13.41 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 10.15 AU - 15.71 AU

Year: 20297 Days

Day: 16.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 32,368,544 km

• M1: 72,106 km (0.106 R)
• M2: 293,062 km (0.08 R)
• M3: 567,275 km (0.064 R)
• M4: 2,471,806 km (0.098 R)
• M5: 3,593,490 km (0.117 R)
• M6: 4,607,315 km (0.071 R)
• M7: 5,090,367 km (0.108 R)
• M8: 6,656,956 km (0.069 R)
• M9: 7,690,228 km (0.054 R)
• M10: 7,928,238 km (0.051 R)
• M11: 8,269,770 km (0.077 R)
• M12: 8,774,663 km (0.098 R)
• M13: 10,881,749 km (0.065 R)
• M14: 12,634,887 km (0.044 R)
• M15: 14,786,104 km (0.11 R)
• M16: 17,331,961 km (0.073 R)
• M17: 17,990,490 km (0.101 R)
• M18: 20,517,647 km (0.087 R)
• M19: 26,478,374 km (0.106 R)
• M20: 26,912,507 km (0.092 R)
• M21: 32,870,392 km (0.055 R)
• M22: 33,245,883 km (0.104 R)
• M23: 40,361,356 km (0.114 R)
• M24: 44,348,139 km (0.104 R)
• M25: 47,944,921 km (0.092 R)
• M26: 50,226,737 km (0.111 R)
• M27: 52,580,061 km (0.066 R)
• M28: 53,438,005 km (0.09 R)
• M29: 57,324,109 km (0.031 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 39.4

Radius: 5.9

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 11.34 AU - 16.88 AU

Year: 23138 Days

Day: 18.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 32,368,544 km

• M1: 77,342 km (0.118 R)
• M2: 309,219 km (0.06 R)
• M3: 508,782 km (0.102 R)
• M4: 723,306 km (0.114 R)
• M5: 1,762,861 km (0.034 R)
• M6: 2,415,108 km (0.07 R)
• M7: 4,158,970 km (0.091 R)
• M8: 5,388,067 km (0.111 R)
• M9: 6,472,801 km (0.049 R)
• M10: 7,119,063 km (0.075 R)
• M11: 9,315,908 km (0.103 R)
• M12: 10,228,006 km (0.113 R)
• M13: 15,164,587 km (0.11 R)
• M14: 21,857,296 km (0.071 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 196 - 10,544 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit