🌌 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: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.41 AU - 0.67 AU

Year: 256 Days

Day: 25.6 Hours

Environment

Temp: -118 °C

Axial Tilt: 3.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 1.24 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.6

Radius: 12.4

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.66 AU - 2.2 AU

Year: 1731 Days

Day: 12.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,188,678 km

• M1: 155,432 km (0.042 R)
• M2: 555,756 km (0.094 R)
• M3: 978,669 km (0.059 R)
• M4: 1,382,733 km (0.111 R)
• M5: 1,890,767 km (0.109 R)
• M6: 2,343,750 km (0.103 R)
• M7: 2,763,222 km (0.06 R)
• M8: 3,204,087 km (0.091 R)
• M9: 3,937,715 km (0.047 R)
• M10: 4,685,256 km (0.116 R)
• M11: 5,113,405 km (0.104 R)
• M12: 6,486,863 km (0.038 R)
• M13: 6,896,611 km (0.088 R)
• M14: 9,918,638 km (0.076 R)
• M15: 12,148,693 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 107.1

Radius: 12.6

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.4 AU - 5.38 AU

Year: 5939 Days

Day: 12.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,188,678 km

• M1: 158,873 km (0.105 R)
• M2: 562,338 km (0.085 R)
• M3: 1,007,691 km (0.025 R)
• M4: 1,535,473 km (0.089 R)
• M5: 2,774,143 km (0.061 R)
• M6: 5,670,358 km (0.025 R)
• M7: 6,824,056 km (0.102 R)
• M8: 7,397,615 km (0.097 R)
• M9: 7,941,253 km (0.1 R)
• M10: 9,245,298 km (0.113 R)
• M11: 10,424,728 km (0.111 R)
• M12: 11,304,363 km (0.115 R)
• M13: 13,519,608 km (0.085 R)
• M14: 14,659,245 km (0.037 R)
• M15: 15,324,806 km (0.111 R)
• M16: 16,260,241 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340.4

Radius: 12.6

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 4.13 AU - 5.85 AU

Year: 7197 Days

Day: 10.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,188,678 km

• M1: 156,779 km (0.089 R)
• M2: 1,693,298 km (0.028 R)
• M3: 2,232,150 km (0.091 R)
• M4: 3,490,567 km (0.109 R)
• M5: 5,427,112 km (0.117 R)
• M6: 6,075,319 km (0.094 R)
• M7: 7,527,166 km (0.099 R)
• M8: 12,152,433 km (0.09 R)
• M9: 13,578,251 km (0.091 R)
• M10: 14,113,662 km (0.091 R)
• M11: 14,607,484 km (0.067 R)
• M12: 17,376,541 km (0.078 R)
• M13: 19,789,704 km (0.12 R)
• M14: 25,271,867 km (0.085 R)
• M15: 25,756,415 km (0.072 R)
• M16: 29,948,596 km (0.111 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 53.9

Radius: 3.2

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 6.84 AU - 8.18 AU

Year: 13288 Days

Day: 16.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 81,188,678 km

• M1: 39,793 km (0.078 R)
• M2: 223,649 km (0.119 R)
• M3: 431,739 km (0.099 R)
• M4: 922,420 km (0.103 R)
• M5: 1,057,657 km (0.043 R)
• M6: 1,275,023 km (0.085 R)
• M7: 1,773,184 km (0.098 R)
• M8: 5,638,344 km (0.105 R)
• M9: 5,777,320 km (0.101 R)
• M10: 6,629,280 km (0.068 R)
• M11: 7,799,135 km (0.097 R)
• M12: 8,076,789 km (0.087 R)
• M13: 11,667,138 km (0.045 R)
• M14: 12,400,317 km (0.088 R)
• M15: 15,971,069 km (0.089 R)
• M16: 16,082,070 km (0.075 R)
• M17: 23,440,341 km (0.034 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 833.4

Radius: 3.8

Gravity: 57.71 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 8.6 AU - 9.41 AU

Year: 17433 Days

Day: 22.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 81,188,678 km

• M1: 47,273 km (0.101 R)
• M2: 168,896 km (0.106 R)
• M3: 307,424 km (0.109 R)
• M4: 472,131 km (0.117 R)
• M5: 723,455 km (0.054 R)
• M6: 1,289,982 km (0.078 R)
• M7: 1,690,755 km (0.112 R)
• M8: 1,891,515 km (0.117 R)
• M9: 2,211,505 km (0.086 R)
• M10: 2,882,302 km (0.077 R)
• M11: 3,922,307 km (0.117 R)
• M12: 5,041,299 km (0.118 R)
• M13: 5,535,271 km (0.083 R)
• M14: 7,304,415 km (0.118 R)
• M15: 7,495,003 km (0.11 R)
• M16: 7,787,018 km (0.108 R)
• M17: 8,137,227 km (0.09 R)
• M18: 8,445,697 km (0.08 R)
• M19: 13,982,913 km (0.104 R)
• M20: 15,106,243 km (0.042 R)
• M21: 22,525,999 km (0.051 R)
• M22: 24,806,768 km (0.065 R)
• M23: 25,345,769 km (0.107 R)
• M24: 27,350,979 km (0.071 R)
• M25: 29,820,989 km (0.067 R)
• M26: 30,185,559 km (0.101 R)
• M27: 31,547,797 km (0.105 R)
• M28: 39,267,347 km (0.045 R)
• M29: 40,889,137 km (0.107 R)
• M30: 45,698,410 km (0.097 R)
• M31: 47,491,639 km (0.11 R)
• M32: 47,656,945 km (0.096 R)
• M33: 51,217,823 km (0.083 R)
• M34: 54,951,935 km (0.068 R)
• M35: 59,245,245 km (0.082 R)
• M36: 62,360,321 km (0.069 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 768.1

Radius: 7.1

Gravity: 15.24 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 8.2 AU - 12.06 AU

Year: 20818 Days

Day: 23.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 81,188,678 km

• M1: 88,263 km (0.093 R)
• M2: 439,519 km (0.108 R)
• M3: 1,075,010 km (0.095 R)
• M4: 1,310,477 km (0.106 R)
• M5: 1,793,379 km (0.044 R)
• M6: 2,066,246 km (0.089 R)
• M7: 4,297,049 km (0.117 R)
• M8: 5,239,965 km (0.034 R)
• M9: 6,226,563 km (0.095 R)
• M10: 8,242,543 km (0.065 R)
• M11: 8,834,951 km (0.088 R)
• M12: 12,094,090 km (0.119 R)
• M13: 13,361,783 km (0.073 R)
• M14: 17,000,003 km (0.09 R)
• M15: 22,670,361 km (0.108 R)
• M16: 25,927,854 km (0.077 R)
• M17: 31,508,304 km (0.107 R)
• M18: 35,689,414 km (0.091 R)
• M19: 40,225,970 km (0.102 R)
• M20: 43,830,082 km (0.109 R)
• M21: 46,125,960 km (0.117 R)
• M22: 49,894,031 km (0.069 R)
• M23: 51,134,796 km (0.106 R)
• M24: 53,862,265 km (0.096 R)
• M25: 56,685,326 km (0.043 R)
• M26: 64,275,473 km (0.117 R)
• M27: 64,901,989 km (0.099 R)
• M28: 68,747,103 km (0.119 R)
• M29: 70,503,831 km (0.068 R)
• M30: 76,419,379 km (0.117 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: 341 - 16,369 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit