🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.19

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.52 AU - 0.68 AU

Year: 300 Days

Day: 29.3 Hours

Environment

Temp: -128 °C

Axial Tilt: 17.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 61,332,109 km

• M1: 64,327 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662

Radius: 10.6

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.83 AU - 1.21 AU

Year: 665 Days

Day: 13.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,332,109 km

• M1: 132,095 km (0.067 R)
• M2: 485,744 km (0.103 R)
• M3: 1,087,876 km (0.069 R)
• M4: 1,624,034 km (0.111 R)
• M5: 1,990,100 km (0.116 R)
• M6: 2,350,631 km (0.049 R)
• M7: 2,834,580 km (0.067 R)
• M8: 3,489,071 km (0.057 R)
• M9: 4,473,276 km (0.052 R)
• M10: 5,047,432 km (0.086 R)
• M11: 6,443,629 km (0.027 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.3

Radius: 11.8

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.97 AU - 1.33 AU

Year: 796 Days

Day: 6.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,332,109 km

• M1: 146,756 km (0.119 R)
• M2: 628,311 km (0.105 R)
• M3: 1,016,817 km (0.056 R)
• M4: 1,411,606 km (0.111 R)
• M5: 1,812,378 km (0.079 R)
• M6: 2,489,009 km (0.088 R)
• M7: 3,192,718 km (0.118 R)
• M8: 3,598,128 km (0.069 R)
• M9: 4,699,767 km (0.05 R)
• M10: 5,103,083 km (0.117 R)
• M11: 5,480,967 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453.2

Radius: 8.3

Gravity: 6.58 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.17 AU - 1.43 AU

Year: 957 Days

Day: 13.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,332,109 km

• M1: 103,223 km (0.033 R)
• M2: 448,644 km (0.105 R)
• M3: 724,951 km (0.071 R)
• M4: 1,524,402 km (0.112 R)
• M5: 1,796,820 km (0.044 R)
• M6: 2,072,978 km (0.116 R)
• M7: 2,442,036 km (0.041 R)
• M8: 2,700,541 km (0.055 R)
• M9: 3,207,079 km (0.109 R)
• M10: 3,969,430 km (0.09 R)
• M11: 4,393,390 km (0.093 R)
• M12: 4,760,803 km (0.07 R)
• M13: 5,789,737 km (0.095 R)
• M14: 6,335,769 km (0.113 R)
• M15: 6,653,814 km (0.077 R)
• M16: 7,026,911 km (0.056 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.6

Radius: 13.3

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.92 AU - 3.08 AU

Year: 2552 Days

Day: 14.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,332,109 km

• M1: 165,455 km (0.06 R)
• M2: 772,075 km (0.065 R)
• M3: 1,533,378 km (0.082 R)
• M4: 2,032,586 km (0.119 R)
• M5: 3,475,009 km (0.112 R)
• M6: 3,963,446 km (0.095 R)
• M7: 4,860,584 km (0.104 R)
• M8: 5,711,647 km (0.092 R)
• M9: 6,981,583 km (0.116 R)
• M10: 8,374,938 km (0.109 R)
• M11: 9,536,266 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 824.9

Radius: 7.8

Gravity: 13.56 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 6.2 AU - 8.1 AU

Year: 12345 Days

Day: 15.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 61,332,109 km

• M1: 97,089 km (0.077 R)
• M2: 410,945 km (0.082 R)
• M3: 917,035 km (0.118 R)
• M4: 1,355,806 km (0.102 R)
• M5: 2,126,833 km (0.104 R)
• M6: 3,626,103 km (0.063 R)
• M7: 6,296,874 km (0.093 R)
• M8: 9,018,208 km (0.041 R)
• M9: 10,663,935 km (0.09 R)
• M10: 11,176,906 km (0.031 R)
• M11: 11,946,886 km (0.102 R)
• M12: 15,027,256 km (0.111 R)
• M13: 15,599,617 km (0.095 R)
• M14: 17,876,048 km (0.109 R)
• M15: 19,427,228 km (0.086 R)
• M16: 19,764,871 km (0.102 R)
• M17: 21,512,024 km (0.078 R)
• M18: 22,423,225 km (0.088 R)
• M19: 23,934,313 km (0.108 R)
• M20: 24,616,180 km (0.109 R)
• M21: 27,368,332 km (0.032 R)
• M22: 32,637,019 km (0.062 R)
• M23: 33,354,790 km (0.091 R)
• M24: 33,839,038 km (0.105 R)
• M25: 35,571,232 km (0.058 R)
• M26: 43,092,265 km (0.094 R)
• M27: 46,465,847 km (0.116 R)
• M28: 50,965,152 km (0.068 R)
• M29: 53,733,311 km (0.032 R)
• M30: 56,600,055 km (0.094 R)
• M31: 58,508,475 km (0.072 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 829.1

Radius: 4.1

Gravity: 49.32 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 7.05 AU - 7.87 AU

Year: 13156 Days

Day: 15.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 61,332,109 km

• M1: 51,013 km (0.12 R)
• M2: 336,446 km (0.118 R)
• M3: 668,553 km (0.094 R)
• M4: 887,564 km (0.109 R)
• M5: 1,270,684 km (0.108 R)
• M6: 1,576,762 km (0.062 R)
• M7: 1,876,556 km (0.095 R)
• M8: 2,910,127 km (0.102 R)
• M9: 3,256,895 km (0.067 R)
• M10: 3,827,761 km (0.064 R)
• M11: 4,002,491 km (0.057 R)
• M12: 5,165,166 km (0.105 R)
• M13: 7,665,245 km (0.118 R)
• M14: 8,180,012 km (0.11 R)
• M15: 10,135,854 km (0.1 R)
• M16: 10,640,897 km (0.049 R)
• M17: 11,640,360 km (0.074 R)
• M18: 12,829,813 km (0.111 R)
• M19: 13,420,575 km (0.071 R)
• M20: 14,797,773 km (0.096 R)
• M21: 18,564,797 km (0.116 R)
• M22: 22,733,940 km (0.08 R)
• M23: 24,284,372 km (0.102 R)
• M24: 25,492,524 km (0.108 R)
• M25: 26,529,387 km (0.059 R)
• M26: 28,027,909 km (0.09 R)
• M27: 30,958,681 km (0.101 R)
• M28: 32,618,320 km (0.111 R)
• M29: 33,225,089 km (0.083 R)
• M30: 34,211,687 km (0.04 R)
• M31: 39,301,754 km (0.091 R)
• M32: 41,812,306 km (0.118 R)
• M33: 46,688,897 km (0.111 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 391 - 11,132 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit