🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

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: 1.85

Radius: 1.28

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.57 AU - 0.63 AU

Year: 305 Days

Day: 14.3 Hours

Environment

Temp: -121 °C

Axial Tilt: 39.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.1

Radius: 11.2

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.88 AU - 1.06 AU

Year: 627 Days

Day: 13.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,042,627 km

• M1: 140,323 km (0.073 R)
• M2: 558,150 km (0.105 R)
• M3: 939,325 km (0.076 R)
• M4: 1,312,123 km (0.116 R)
• M5: 1,716,037 km (0.039 R)
• M6: 2,100,205 km (0.118 R)
• M7: 2,889,034 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 292.3

Radius: 12.8

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.92 AU - 1.3 AU

Year: 767 Days

Day: 9 Hours

Environment

Temp: -163 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,042,627 km

• M1: 159,172 km (0.087 R)
• M2: 661,073 km (0.116 R)
• M3: 1,193,791 km (0.112 R)
• M4: 1,779,018 km (0.09 R)
• M5: 2,551,392 km (0.099 R)
• M6: 3,117,919 km (0.084 R)
• M7: 3,524,675 km (0.08 R)
• M8: 4,104,218 km (0.118 R)
• M9: 4,550,169 km (0.098 R)
• M10: 5,189,849 km (0.064 R)
• M11: 5,591,669 km (0.102 R)
• M12: 6,141,591 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841.7

Radius: 14.4

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.92 AU - 1.5 AU

Year: 873 Days

Day: 6.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,042,627 km

• M1: 179,069 km (0.1 R)
• M2: 661,671 km (0.107 R)
• M3: 1,339,649 km (0.102 R)
• M4: 1,848,431 km (0.1 R)
• M5: 2,930,024 km (0.104 R)
• M6: 3,656,920 km (0.066 R)
• M7: 4,399,973 km (0.119 R)
• M8: 5,793,028 km (0.063 R)
• M9: 6,989,213 km (0.061 R)
• M10: 8,188,389 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 94

Radius: 10.5

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2.84 AU - 4.34 AU

Year: 4462 Days

Day: 12.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,042,627 km

• M1: 134,937 km (0.082 R)
• M2: 548,575 km (0.101 R)
• M3: 1,109,418 km (0.104 R)
• M4: 1,443,021 km (0.093 R)
• M5: 2,536,881 km (0.071 R)
• M6: 4,243,643 km (0.109 R)
• M7: 6,166,125 km (0.057 R)
• M8: 6,972,158 km (0.109 R)
• M9: 7,932,427 km (0.026 R)
• M10: 9,913,402 km (0.094 R)
• M11: 10,629,677 km (0.084 R)
• M12: 12,513,263 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 743.8

Radius: 5.9

Gravity: 21.37 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 6.21 AU - 9.29 AU

Year: 14153 Days

Day: 22.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 49,042,627 km

• M1: 88,113 km (0.03 R)
• M2: 304,432 km (0.058 R)
• M3: 512,373 km (0.111 R)
• M4: 1,321,697 km (0.12 R)
• M5: 2,511,449 km (0.1 R)
• M6: 2,755,892 km (0.111 R)
• M7: 3,450,325 km (0.104 R)
• M8: 4,348,661 km (0.056 R)
• M9: 4,735,221 km (0.1 R)
• M10: 5,466,306 km (0.071 R)
• M11: 6,890,777 km (0.039 R)
• M12: 7,780,884 km (0.103 R)
• M13: 9,049,624 km (0.088 R)
• M14: 9,308,578 km (0.041 R)
• M15: 9,841,146 km (0.092 R)
• M16: 10,281,712 km (0.104 R)
• M17: 14,857,313 km (0.079 R)
• M18: 15,584,358 km (0.113 R)
• M19: 15,956,558 km (0.044 R)
• M20: 16,564,523 km (0.073 R)
• M21: 16,796,400 km (0.112 R)
• M22: 17,266,736 km (0.091 R)
• M23: 18,233,587 km (0.111 R)
• M24: 28,614,333 km (0.115 R)
• M25: 32,433,118 km (0.098 R)
• M26: 36,317,277 km (0.111 R)
• M27: 37,103,264 km (0.093 R)
• M28: 37,900,621 km (0.099 R)
• M29: 38,981,316 km (0.077 R)
• M30: 42,780,353 km (0.118 R)
• M31: 46,205,247 km (0.111 R)
• M32: 51,596,306 km (0.09 R)
• M33: 60,445,618 km (0.069 R)
• M34: 61,734,105 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 630.8

Radius: 7.8

Gravity: 10.37 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 8.66 AU - 8.94 AU

Year: 17125 Days

Day: 17.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 49,042,627 km

• M1: 98,735 km (0.118 R)
• M2: 418,724 km (0.114 R)
• M3: 750,233 km (0.074 R)
• M4: 1,254,977 km (0.079 R)
• M5: 1,560,156 km (0.109 R)
• M6: 1,878,650 km (0.095 R)
• M7: 2,739,885 km (0.084 R)
• M8: 3,129,737 km (0.093 R)
• M9: 5,396,444 km (0.096 R)
• M10: 7,986,881 km (0.111 R)
• M11: 8,990,832 km (0.037 R)
• M12: 11,991,616 km (0.109 R)
• M13: 12,505,933 km (0.098 R)
• M14: 14,566,345 km (0.083 R)
• M15: 15,829,250 km (0.052 R)
• M16: 17,569,821 km (0.11 R)
• M17: 18,317,362 km (0.082 R)
• M18: 20,414,425 km (0.113 R)
• M19: 25,183,306 km (0.109 R)
• M20: 26,671,056 km (0.078 R)
• M21: 27,657,954 km (0.047 R)
• M22: 28,216,552 km (0.09 R)
• M23: 29,240,998 km (0.052 R)
• M24: 29,937,675 km (0.03 R)
• M25: 30,645,273 km (0.105 R)
• M26: 37,796,949 km (0.07 R)
• M27: 40,886,444 km (0.091 R)
• M28: 50,491,077 km (0.118 R)
• M29: 52,338,760 km (0.046 R)
• M30: 53,537,637 km (0.075 R)
• M31: 61,307,152 km (0.056 R)
• M32: 64,575,267 km (0.104 R)
• M33: 64,967,214 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 171

Radius: 8

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 9.93 AU - 10.05 AU

Year: 20714 Days

Day: 17.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 49,042,627 km

• M1: 99,483 km (0.087 R)
• M2: 419,472 km (0.091 R)
• M3: 718,519 km (0.104 R)
• M4: 1,073,514 km (0.055 R)
• M5: 3,115,824 km (0.055 R)
• M6: 4,801,493 km (0.094 R)
• M7: 5,052,219 km (0.063 R)
• M8: 6,180,786 km (0.105 R)
• M9: 7,141,354 km (0.091 R)
• M10: 7,427,385 km (0.118 R)
• M11: 8,466,491 km (0.118 R)
• M12: 8,787,080 km (0.083 R)
• M13: 9,115,746 km (0.112 R)
• M14: 9,452,641 km (0.092 R)
• M15: 11,428,679 km (0.12 R)
• M16: 11,820,476 km (0.05 R)
• M17: 12,163,504 km (0.107 R)
• M18: 12,929,594 km (0.04 R)
• M19: 14,298,714 km (0.105 R)
• M20: 15,018,429 km (0.083 R)
• M21: 16,887,056 km (0.065 R)
• M22: 17,322,386 km (0.075 R)
• M23: 21,754,373 km (0.112 R)
• M24: 22,011,232 km (0.109 R)
• M25: 24,047,559 km (0.092 R)
• M26: 30,050,771 km (0.106 R)
• M27: 30,905,424 km (0.108 R)
• M28: 31,556,923 km (0.088 R)
• M29: 32,328,698 km (0.113 R)
• M30: 38,585,031 km (0.042 R)
• M31: 38,961,419 km (0.108 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 167 - 13,333 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit