🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.9

Radius: 12.2

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.46 AU - 0.64 AU

Year: 287 Days

Day: 14.1 Hours

Environment

Temp: -137 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 27,294,285 km

• M1: 151,692 km (0.084 R)
• M2: 815,009 km (0.09 R)
• M3: 1,198,578 km (0.098 R)
• M4: 1,585,139 km (0.093 R)
• M5: 2,021,067 km (0.103 R)
• M6: 2,496,040 km (0.097 R)
• M7: 3,045,364 km (0.096 R)
• M8: 3,674,273 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373.3

Radius: 13.5

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.55 AU - 0.77 AU

Year: 377 Days

Day: 7.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 27,294,285 km

• M1: 167,849 km (0.117 R)
• M2: 604,675 km (0.077 R)
• M3: 1,068,578 km (0.114 R)
• M4: 2,011,643 km (0.08 R)
• M5: 2,536,282 km (0.087 R)
• M6: 2,965,179 km (0.078 R)
• M7: 3,808,911 km (0.072 R)
• M8: 4,312,907 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.3

Radius: 11.3

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.74 AU - 0.86 AU

Year: 503 Days

Day: 14.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 27,294,285 km

• M1: 140,622 km (0.114 R)
• M2: 576,700 km (0.118 R)
• M3: 973,433 km (0.072 R)
• M4: 1,384,827 km (0.1 R)
• M5: 1,882,240 km (0.067 R)
• M6: 2,376,811 km (0.03 R)
• M7: 2,914,915 km (0.069 R)
• M8: 3,321,671 km (0.066 R)
• M9: 4,529,524 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 180.5

Radius: 10

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.88 AU - 0.94 AU

Year: 610 Days

Day: 11.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 27,294,285 km

• M1: 124,465 km (0.114 R)
• M2: 663,467 km (0.115 R)
• M3: 1,077,105 km (0.052 R)
• M4: 1,445,863 km (0.088 R)
• M5: 1,805,646 km (0.118 R)
• M6: 3,085,007 km (0.058 R)
• M7: 3,483,386 km (0.111 R)
• M8: 4,530,422 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.7

Radius: 11.6

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.05 AU - 1.27 AU

Year: 878 Days

Day: 6.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 27,294,285 km

• M1: 144,362 km (0.114 R)
• M2: 515,215 km (0.07 R)
• M3: 899,532 km (0.095 R)
• M4: 1,418,188 km (0.115 R)
• M5: 1,796,521 km (0.119 R)
• M6: 2,337,168 km (0.049 R)
• M7: 2,800,023 km (0.107 R)
• M8: 3,310,152 km (0.064 R)
• M9: 3,703,744 km (0.11 R)
• M10: 4,569,168 km (0.098 R)
• M11: 5,940,382 km (0.114 R)
• M12: 6,503,618 km (0.088 R)
• M13: 6,943,436 km (0.094 R)
• M14: 7,712,967 km (0.104 R)
• M15: 8,668,449 km (0.066 R)
• M16: 9,202,214 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.3

Radius: 12.6

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.65 AU - 2.29 AU

Year: 1944 Days

Day: 5.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,294,285 km

• M1: 156,629 km (0.114 R)
• M2: 549,473 km (0.064 R)
• M3: 944,561 km (0.038 R)
• M4: 1,439,580 km (0.108 R)
• M5: 2,544,061 km (0.086 R)
• M6: 3,327,206 km (0.084 R)
• M7: 3,987,531 km (0.093 R)
• M8: 5,236,225 km (0.116 R)
• M9: 5,672,003 km (0.052 R)
• M10: 6,393,364 km (0.084 R)
• M11: 7,613,933 km (0.114 R)
• M12: 8,306,272 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 450.9

Radius: 15

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 3.23 AU - 5.35 AU

Year: 6246 Days

Day: 11.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 27,294,285 km

• M1: 191,036 km (0.056 R)
• M2: 718,818 km (0.095 R)
• M3: 1,387,221 km (0.079 R)
• M4: 1,969,007 km (0.119 R)
• M5: 2,890,979 km (0.097 R)
• M6: 4,823,335 km (0.08 R)
• M7: 5,973,144 km (0.111 R)
• M8: 6,694,355 km (0.086 R)
• M9: 7,229,915 km (0.026 R)
• M10: 9,499,166 km (0.034 R)
• M11: 10,177,143 km (0.115 R)
• M12: 12,111,892 km (0.055 R)
• M13: 15,865,153 km (0.103 R)
• M14: 17,437,876 km (0.079 R)
• M15: 20,611,295 km (0.094 R)
• M16: 27,737,091 km (0.059 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.4

Radius: 8.1

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 4.1 AU - 5.24 AU

Year: 7094 Days

Day: 13.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,294,285 km

• M1: 101,876 km (0.095 R)
• M2: 627,264 km (0.057 R)
• M3: 1,079,498 km (0.085 R)
• M4: 1,441,974 km (0.103 R)
• M5: 1,856,958 km (0.113 R)
• M6: 2,130,722 km (0.079 R)
• M7: 2,464,924 km (0.031 R)
• M8: 2,984,029 km (0.087 R)
• M9: 4,588,915 km (0.115 R)
• M10: 4,930,596 km (0.086 R)
• M11: 5,935,894 km (0.105 R)
• M12: 6,470,856 km (0.086 R)
• M13: 14,150,612 km (0.05 R)
• M14: 20,244,481 km (0.119 R)
• M15: 22,336,757 km (0.052 R)
• M16: 22,786,897 km (0.074 R)
• M17: 29,742,001 km (0.106 R)
• M18: 30,838,554 km (0.109 R)
• M19: 31,116,806 km (0.096 R)

Asteroid Belt

Center: 5.32 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 120.3

Radius: 3.6

Gravity: 9.28 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 5.01 AU - 6.93 AU

Year: 10253 Days

Day: 18 Hours

Environment

Temp: -233 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 27,294,285 km

• M1: 45,179 km (0.077 R)
• M2: 206,295 km (0.103 R)
• M3: 393,891 km (0.102 R)
• M4: 702,512 km (0.108 R)
• M5: 833,260 km (0.087 R)
• M6: 1,493,286 km (0.102 R)
• M7: 1,922,781 km (0.045 R)
• M8: 2,256,983 km (0.091 R)
• M9: 2,611,530 km (0.057 R)
• M10: 2,837,872 km (0.097 R)
• M11: 2,983,580 km (0.12 R)
• M12: 3,680,706 km (0.118 R)
• M13: 4,480,157 km (0.09 R)
• M14: 5,500,115 km (0.111 R)
• M15: 8,462,602 km (0.063 R)
• M16: 8,803,236 km (0.089 R)
• M17: 9,674,494 km (0.107 R)
• M18: 10,908,826 km (0.109 R)
• M19: 11,772,156 km (0.047 R)
• M20: 13,479,815 km (0.027 R)
• M21: 17,076,447 km (0.061 R)
• M22: 18,996,985 km (0.103 R)
• M23: 20,444,045 km (0.11 R)
• M24: 20,919,617 km (0.098 R)
• M25: 21,892,452 km (0.073 R)
• M26: 26,968,607 km (0.05 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 294 - 18,498 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit