🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.6

Radius: 10.6

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.69 AU - 1.11 AU

Year: 600 Days

Day: 7.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,863,026 km

• M1: 131,796 km (0.115 R)
• M2: 629,807 km (0.105 R)
• M3: 1,063,940 km (0.092 R)
• M4: 1,496,727 km (0.038 R)
• M5: 2,064,002 km (0.084 R)
• M6: 2,393,865 km (0.056 R)
• M7: 3,019,483 km (0.111 R)
• M8: 3,737,254 km (0.069 R)
• M9: 4,086,415 km (0.092 R)
• M10: 5,336,455 km (0.1 R)
• M11: 5,965,365 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619

Radius: 14.4

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.32 AU - 2.08 AU

Year: 1558 Days

Day: 7.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 76,863,026 km

• M1: 179,218 km (0.097 R)
• M2: 844,181 km (0.119 R)
• M3: 1,306,887 km (0.026 R)
• M4: 1,824,047 km (0.079 R)
• M5: 2,405,833 km (0.041 R)
• M6: 3,067,355 km (0.101 R)
• M7: 3,882,364 km (0.103 R)
• M8: 4,547,177 km (0.047 R)
• M9: 5,831,475 km (0.039 R)
• M10: 7,188,776 km (0.086 R)
• M11: 7,969,976 km (0.099 R)
• M12: 8,424,754 km (0.095 R)
• M13: 8,927,103 km (0.037 R)
• M14: 10,155,601 km (0.093 R)
• M15: 10,759,378 km (0.116 R)
• M16: 11,782,627 km (0.043 R)
• M17: 12,525,381 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.3

Radius: 11.6

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.55 AU - 2.07 AU

Year: 1712 Days

Day: 6.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 76,863,026 km

• M1: 146,756 km (0.072 R)
• M2: 511,026 km (0.087 R)
• M3: 873,203 km (0.086 R)
• M4: 1,307,037 km (0.109 R)
• M5: 1,681,630 km (0.025 R)
• M6: 2,504,119 km (0.077 R)
• M7: 2,923,442 km (0.058 R)
• M8: 3,467,080 km (0.089 R)
• M9: 4,915,038 km (0.086 R)
• M10: 5,752,637 km (0.082 R)
• M11: 6,756,737 km (0.11 R)
• M12: 7,630,389 km (0.045 R)
• M13: 8,405,156 km (0.11 R)
• M14: 8,841,384 km (0.075 R)
• M15: 9,633,504 km (0.117 R)
• M16: 12,111,144 km (0.06 R)
• M17: 12,555,600 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 57.8

Radius: 11.5

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.75 AU - 2.17 AU

Year: 1929 Days

Day: 5.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,863,026 km

• M1: 145,260 km (0.115 R)
• M2: 526,285 km (0.118 R)
• M3: 927,357 km (0.115 R)
• M4: 1,370,017 km (0.097 R)
• M5: 1,886,878 km (0.092 R)
• M6: 2,645,638 km (0.09 R)
• M7: 3,137,367 km (0.063 R)
• M8: 3,743,088 km (0.098 R)
• M9: 4,592,954 km (0.118 R)
• M10: 5,039,204 km (0.1 R)
• M11: 5,745,007 km (0.106 R)
• M12: 6,360,004 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.8

Radius: 14.9

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.73 AU - 2.21 AU

Year: 1944 Days

Day: 11 Hours

Environment

Temp: -191 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 76,863,026 km

• M1: 185,352 km (0.064 R)
• M2: 770,130 km (0.084 R)
• M3: 3,185,836 km (0.096 R)
• M4: 4,518,304 km (0.051 R)
• M5: 5,667,964 km (0.071 R)
• M6: 6,959,443 km (0.077 R)
• M7: 9,574,563 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.8

Radius: 13.3

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 3.87 AU - 4.07 AU

Year: 5560 Days

Day: 10.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 76,863,026 km

• M1: 165,455 km (0.12 R)
• M2: 1,004,699 km (0.112 R)
• M3: 1,599,800 km (0.038 R)
• M4: 2,943,787 km (0.085 R)
• M5: 3,483,835 km (0.109 R)
• M6: 3,993,665 km (0.081 R)
• M7: 4,408,350 km (0.117 R)
• M8: 4,895,890 km (0.111 R)
• M9: 8,492,372 km (0.103 R)
• M10: 11,443,489 km (0.041 R)
• M11: 12,001,340 km (0.111 R)
• M12: 12,661,066 km (0.069 R)
• M13: 14,508,450 km (0.068 R)
• M14: 14,926,576 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.1

Radius: 11.8

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 3.23 AU - 5.17 AU

Year: 6050 Days

Day: 5.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,863,026 km

• M1: 150,645 km (0.068 R)
• M2: 787,034 km (0.099 R)
• M3: 2,240,378 km (0.115 R)
• M4: 2,665,535 km (0.097 R)
• M5: 3,795,298 km (0.09 R)
• M6: 4,340,732 km (0.094 R)
• M7: 5,125,373 km (0.103 R)
• M8: 6,081,602 km (0.056 R)
• M9: 10,379,250 km (0.115 R)
• M10: 11,205,329 km (0.119 R)
• M11: 18,150,410 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 853.3

Radius: 4.9

Gravity: 35.54 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 7.07 AU - 10.43 AU

Year: 18194 Days

Day: 23.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 76,863,026 km

• M1: 76,744 km (0.101 R)
• M2: 325,375 km (0.095 R)
• M3: 555,158 km (0.115 R)
• M4: 867,668 km (0.101 R)
• M5: 1,275,471 km (0.108 R)
• M6: 1,934,001 km (0.106 R)
• M7: 2,554,084 km (0.067 R)
• M8: 4,976,224 km (0.086 R)
• M9: 5,393,003 km (0.069 R)
• M10: 5,629,966 km (0.104 R)
• M11: 6,692,859 km (0.091 R)
• M12: 7,059,524 km (0.07 R)
• M13: 7,536,591 km (0.11 R)
• M14: 9,835,013 km (0.116 R)
• M15: 11,755,849 km (0.085 R)
• M16: 12,357,233 km (0.101 R)
• M17: 15,201,537 km (0.088 R)
• M18: 16,402,659 km (0.087 R)
• M19: 16,984,145 km (0.058 R)
• M20: 21,446,052 km (0.092 R)
• M21: 26,630,515 km (0.098 R)
• M22: 32,591,542 km (0.114 R)
• M23: 42,252,423 km (0.109 R)
• M24: 43,343,589 km (0.11 R)
• M25: 49,424,444 km (0.112 R)
• M26: 51,865,881 km (0.066 R)
• M27: 52,043,304 km (0.085 R)
• M28: 55,121,729 km (0.102 R)
• M29: 59,476,673 km (0.087 R)
• M30: 62,236,604 km (0.074 R)
• M31: 64,464,266 km (0.11 R)
• M32: 73,906,584 km (0.179 R)
• M33: 76,173,889 km (0.101 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 302 - 18,850 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit