🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.99

Radius: 1.32

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.65 AU - 0.67 AU

Year: 346 Days

Day: 36.5 Hours

Environment

Temp: -129 °C

Axial Tilt: 34.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.6

Radius: 11.4

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.83 AU - 0.95 AU

Year: 542 Days

Day: 14.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,574,483 km

• M1: 141,819 km (0.105 R)
• M2: 576,550 km (0.111 R)
• M3: 956,230 km (0.105 R)
• M4: 2,111,424 km (0.108 R)
• M5: 2,520,575 km (0.086 R)
• M6: 2,878,861 km (0.12 R)
• M7: 3,448,979 km (0.069 R)
• M8: 4,181,111 km (0.057 R)
• M9: 5,114,751 km (0.104 R)
• M10: 5,622,187 km (0.104 R)
• M11: 6,124,537 km (0.12 R)
• M12: 6,636,610 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.1

Radius: 14.8

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.24 AU - 1.34 AU

Year: 946 Days

Day: 5 Hours

Environment

Temp: -163 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 74,574,483 km

• M1: 184,005 km (0.089 R)
• M2: 965,654 km (0.094 R)
• M3: 1,467,854 km (0.062 R)
• M4: 2,177,846 km (0.077 R)
• M5: 2,702,037 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.9

Radius: 13.4

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.59 AU - 2.11 AU

Year: 1625 Days

Day: 9.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,574,483 km

• M1: 166,652 km (0.096 R)
• M2: 611,556 km (0.095 R)
• M3: 1,437,336 km (0.12 R)
• M4: 2,222,725 km (0.086 R)
• M5: 2,815,881 km (0.051 R)
• M6: 3,578,082 km (0.097 R)
• M7: 4,214,022 km (0.108 R)
• M8: 5,234,729 km (0.05 R)
• M9: 6,150,716 km (0.109 R)
• M10: 6,610,281 km (0.049 R)
• M11: 8,417,423 km (0.115 R)
• M12: 9,451,444 km (0.106 R)
• M13: 10,398,847 km (0.094 R)
• M14: 11,336,975 km (0.062 R)
• M15: 12,985,694 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.9

Radius: 14.3

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 3.01 AU - 3.59 AU

Year: 3871 Days

Day: 10.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 74,574,483 km

• M1: 177,872 km (0.099 R)
• M2: 2,605,546 km (0.075 R)
• M3: 3,457,207 km (0.077 R)
• M4: 4,997,167 km (0.105 R)
• M5: 5,523,901 km (0.115 R)
• M6: 7,511,309 km (0.087 R)
• M7: 8,177,618 km (0.047 R)
• M8: 10,416,051 km (0.038 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 545.8

Radius: 6.6

Gravity: 12.53 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 6.44 AU - 7.2 AU

Year: 11500 Days

Day: 24.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 74,574,483 km

• M1: 82,129 km (0.09 R)
• M2: 421,417 km (0.084 R)
• M3: 870,660 km (0.038 R)
• M4: 1,083,687 km (0.095 R)
• M5: 1,633,160 km (0.047 R)
• M6: 3,152,027 km (0.114 R)
• M7: 4,090,305 km (0.075 R)
• M8: 5,041,448 km (0.119 R)
• M9: 6,850,236 km (0.118 R)
• M10: 9,147,461 km (0.084 R)
• M11: 11,026,410 km (0.064 R)
• M12: 13,209,342 km (0.101 R)
• M13: 15,057,774 km (0.049 R)
• M14: 16,784,133 km (0.029 R)
• M15: 17,072,109 km (0.091 R)
• M16: 21,542,243 km (0.117 R)
• M17: 23,101,202 km (0.109 R)
• M18: 25,200,958 km (0.111 R)
• M19: 26,539,560 km (0.051 R)
• M20: 29,880,978 km (0.046 R)
• M21: 34,064,034 km (0.064 R)
• M22: 35,462,026 km (0.099 R)
• M23: 37,140,813 km (0.096 R)
• M24: 42,894,945 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 304.1

Radius: 5.2

Gravity: 11.25 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 7.95 AU - 8.13 AU

Year: 14720 Days

Day: 20.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 171.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 74,574,483 km

• M1: 64,626 km (0.068 R)
• M2: 496,067 km (0.071 R)
• M3: 701,614 km (0.061 R)
• M4: 914,492 km (0.076 R)
• M5: 1,353,262 km (0.058 R)
• M6: 1,527,544 km (0.111 R)
• M7: 1,921,884 km (0.052 R)
• M8: 2,160,792 km (0.068 R)
• M9: 3,954,021 km (0.047 R)
• M10: 5,935,744 km (0.109 R)
• M11: 6,150,118 km (0.087 R)
• M12: 7,422,747 km (0.111 R)
• M13: 9,573,067 km (0.114 R)
• M14: 14,149,266 km (0.058 R)
• M15: 16,692,280 km (0.098 R)
• M16: 17,627,715 km (0.094 R)
• M17: 18,220,572 km (0.089 R)
• M18: 24,898,022 km (0.071 R)
• M19: 25,269,025 km (0.098 R)
• M20: 35,437,641 km (0.078 R)
• M21: 44,810,097 km (0.085 R)
• M22: 46,330,610 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 542.7

Radius: 4

Gravity: 33.92 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 6.78 AU - 9.46 AU

Year: 14940 Days

Day: 15.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 74,574,483 km

• M1: 96,341 km (0.101 R)
• M2: 354,846 km (0.082 R)
• M3: 578,495 km (0.103 R)
• M4: 998,715 km (0.112 R)
• M5: 1,202,318 km (0.108 R)
• M6: 1,775,128 km (0.032 R)
• M7: 2,227,064 km (0.075 R)
• M8: 3,031,152 km (0.108 R)
• M9: 3,252,707 km (0.107 R)
• M10: 3,565,067 km (0.054 R)
• M11: 3,983,043 km (0.113 R)
• M12: 4,309,915 km (0.11 R)
• M13: 13,986,204 km (0.106 R)
• M14: 14,738,831 km (0.118 R)
• M15: 15,160,547 km (0.117 R)
• M16: 15,881,011 km (0.11 R)
• M17: 18,340,250 km (0.109 R)
• M18: 24,974,168 km (0.1 R)
• M19: 25,977,670 km (0.105 R)
• M20: 27,957,897 km (0.112 R)
• M21: 28,930,134 km (0.089 R)
• M22: 32,687,733 km (0.057 R)
• M23: 34,375,646 km (0.101 R)
• M24: 49,234,754 km (0.063 R)
• M25: 56,927,525 km (0.101 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 866

Radius: 3.1

Gravity: 90.11 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 7.25 AU - 10.63 AU

Year: 17259 Days

Day: 24.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 74,574,483 km

• M1: 38,746 km (0.09 R)
• M2: 184,155 km (0.091 R)
• M3: 487,839 km (0.106 R)
• M4: 1,043,445 km (0.071 R)
• M5: 1,203,216 km (0.097 R)
• M6: 1,394,402 km (0.1 R)
• M7: 2,280,620 km (0.118 R)
• M8: 2,644,741 km (0.043 R)
• M9: 3,261,682 km (0.039 R)
• M10: 3,487,276 km (0.1 R)
• M11: 4,880,780 km (0.12 R)
• M12: 5,138,088 km (0.096 R)
• M13: 5,521,358 km (0.067 R)
• M14: 6,387,829 km (0.089 R)
• M15: 6,695,701 km (0.07 R)
• M16: 7,976,409 km (0.115 R)
• M17: 8,969,739 km (0.108 R)
• M18: 9,133,698 km (0.068 R)
• M19: 9,524,298 km (0.075 R)
• M20: 10,219,479 km (0.098 R)
• M21: 10,458,537 km (0.099 R)
• M22: 12,104,263 km (0.082 R)
• M23: 13,128,260 km (0.11 R)
• M24: 13,553,567 km (0.119 R)
• M25: 14,356,908 km (0.12 R)
• M26: 15,502,827 km (0.049 R)
• M27: 15,977,801 km (0.098 R)
• M28: 19,577,724 km (0.117 R)
• M29: 22,255,974 km (0.115 R)
• M30: 25,824,183 km (0.081 R)
• M31: 30,982,916 km (0.062 R)
• M32: 37,773,163 km (0.119 R)
• M33: 42,349,811 km (0.097 R)
• M34: 43,120,988 km (0.108 R)
• M35: 47,613,113 km (0.118 R)
• M36: 52,939,096 km (0.089 R)
• M37: 54,556,548 km (0.086 R)
• M38: 57,137,560 km (0.12 R)
• M39: 61,552,642 km (0.085 R)
• M40: 63,541,097 km (0.104 R)
• M41: 64,145,772 km (0.073 R)
• M42: 67,227,338 km (0.102 R)
• M43: 68,276,019 km (0.074 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 312 - 19,987 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit