🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.46 AU - 0.58 AU

Year: 242 Days

Day: 41 Hours

Environment

Temp: -113 °C

Axial Tilt: 17.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.31

Radius: 1.61

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.45 AU - 0.59 AU

Year: 242 Days

Day: 38.9 Hours

Environment

Temp: -110 °C

Axial Tilt: 38 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.3

Radius: 9.4

Gravity: 7.77 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.57 AU - 0.91 AU

Year: 411 Days

Day: 10.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,922,956 km

• M1: 116,836 km (0.106 R)
• M2: 414,386 km (0.061 R)
• M3: 899,083 km (0.037 R)
• M4: 1,362,089 km (0.103 R)
• M5: 1,725,611 km (0.119 R)
• M6: 2,052,632 km (0.067 R)
• M7: 2,430,666 km (0.106 R)
• M8: 2,782,520 km (0.058 R)
• M9: 3,351,142 km (0.085 R)
• M10: 3,956,116 km (0.082 R)
• M11: 5,129,561 km (0.084 R)
• M12: 5,480,668 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 897.3

Radius: 8.6

Gravity: 12.13 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.72 AU - 0.92 AU

Year: 479 Days

Day: 5.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,922,956 km

• M1: 117,584 km (0.059 R)
• M2: 562,937 km (0.12 R)
• M3: 884,423 km (0.099 R)
• M4: 1,174,044 km (0.088 R)
• M5: 1,571,526 km (0.086 R)
• M6: 1,843,644 km (0.078 R)
• M7: 2,736,295 km (0.095 R)
• M8: 3,063,166 km (0.081 R)
• M9: 3,416,067 km (0.111 R)
• M10: 4,306,773 km (0.108 R)
• M11: 4,625,417 km (0.04 R)
• M12: 5,041,747 km (0.082 R)
• M13: 6,268,899 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.3

Radius: 14.3

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.67 AU - 1.01 AU

Year: 497 Days

Day: 9.7 Hours

Environment

Temp: -140 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,922,956 km

• M1: 177,872 km (0.053 R)
• M2: 625,768 km (0.086 R)
• M3: 1,194,240 km (0.06 R)
• M4: 1,879,398 km (0.114 R)
• M5: 2,594,027 km (0.049 R)
• M6: 3,092,038 km (0.073 R)
• M7: 3,680,856 km (0.11 R)
• M8: 4,240,352 km (0.048 R)
• M9: 5,003,151 km (0.112 R)
• M10: 5,602,739 km (0.111 R)
• M11: 6,060,210 km (0.111 R)
• M12: 6,522,916 km (0.044 R)
• M13: 6,988,465 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.1

Radius: 10.6

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.84 AU - 0.86 AU

Year: 506 Days

Day: 14.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,922,956 km

• M1: 133,441 km (0.084 R)
• M2: 497,862 km (0.054 R)
• M3: 841,039 km (0.101 R)
• M4: 2,268,353 km (0.083 R)
• M5: 2,890,380 km (0.075 R)
• M6: 3,558,485 km (0.062 R)
• M7: 3,984,689 km (0.057 R)
• M8: 5,218,273 km (0.11 R)
• M9: 5,611,117 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.6

Radius: 8.8

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.19 AU - 1.27 AU

Year: 881 Days

Day: 11.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,922,956 km

• M1: 109,506 km (0.073 R)
• M2: 411,843 km (0.11 R)
• M3: 803,640 km (0.094 R)
• M4: 1,194,838 km (0.087 R)
• M5: 1,558,062 km (0.08 R)
• M6: 1,903,783 km (0.096 R)
• M7: 2,360,505 km (0.086 R)
• M8: 3,009,610 km (0.066 R)
• M9: 3,539,336 km (0.074 R)
• M10: 3,905,701 km (0.108 R)
• M11: 4,415,830 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.8

Radius: 14.4

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.48 AU - 2.42 AU

Year: 1758 Days

Day: 5.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,922,956 km

• M1: 179,069 km (0.097 R)
• M2: 994,527 km (0.106 R)
• M3: 1,612,665 km (0.115 R)
• M4: 2,269,101 km (0.084 R)
• M5: 2,779,828 km (0.094 R)
• M6: 4,218,959 km (0.077 R)
• M7: 5,156,788 km (0.117 R)
• M8: 6,702,583 km (0.066 R)
• M9: 7,244,127 km (0.119 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.5

Radius: 8.1

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 3.69 AU - 5.87 AU

Year: 6748 Days

Day: 14.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 56,922,956 km

• M1: 102,325 km (0.072 R)
• M2: 627,264 km (0.114 R)
• M3: 1,355,357 km (0.096 R)
• M4: 1,821,803 km (0.108 R)
• M5: 2,106,787 km (0.101 R)
• M6: 2,391,472 km (0.088 R)
• M7: 2,918,355 km (0.086 R)
• M8: 3,481,591 km (0.077 R)
• M9: 5,583,890 km (0.117 R)
• M10: 6,569,142 km (0.115 R)
• M11: 6,932,365 km (0.072 R)
• M12: 8,000,793 km (0.119 R)
• M13: 8,310,311 km (0.089 R)
• M14: 8,771,522 km (0.079 R)
• M15: 11,338,322 km (0.111 R)
• M16: 14,116,953 km (0.116 R)
• M17: 15,663,495 km (0.111 R)
• M18: 18,546,396 km (0.115 R)
• M19: 21,566,179 km (0.106 R)
• M20: 21,898,436 km (0.063 R)

Asteroid Belt

Center: 5.83 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 10 - Ice Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 845

Radius: 6.5

Gravity: 20 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 6.38 AU - 7.38 AU

Year: 11652 Days

Day: 15.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 56,922,956 km

• M1: 82,578 km (0.071 R)
• M2: 412,292 km (0.041 R)
• M3: 896,390 km (0.075 R)
• M4: 1,212,192 km (0.06 R)
• M5: 1,540,110 km (0.099 R)
• M6: 2,179,791 km (0.119 R)
• M7: 2,394,763 km (0.09 R)
• M8: 3,126,595 km (0.065 R)
• M9: 3,746,080 km (0.081 R)
• M10: 4,695,428 km (0.096 R)
• M11: 6,768,256 km (0.097 R)
• M12: 7,357,971 km (0.036 R)
• M13: 9,693,493 km (0.104 R)
• M14: 9,956,636 km (0.031 R)
• M15: 10,442,231 km (0.101 R)
• M16: 14,703,975 km (0.114 R)
• M17: 15,691,171 km (0.093 R)
• M18: 16,274,603 km (0.081 R)
• M19: 18,916,800 km (0.03 R)
• M20: 20,168,486 km (0.114 R)
• M21: 20,425,196 km (0.068 R)
• M22: 28,534,148 km (0.049 R)
• M23: 29,512,668 km (0.118 R)
• M24: 30,065,881 km (0.094 R)
• M25: 30,625,975 km (0.073 R)
• M26: 31,882,597 km (0.12 R)
• M27: 34,498,466 km (0.057 R)
• M28: 37,511,516 km (0.083 R)
• M29: 39,214,688 km (0.101 R)
• M30: 40,968,723 km (0.11 R)
• M31: 42,915,440 km (0.058 R)
• M32: 44,198,990 km (0.118 R)
• M33: 45,361,216 km (0.081 R)
• M34: 51,959,080 km (0.101 R)
• M35: 54,237,905 km (0.082 R)
• M36: 56,243,563 km (0.06 R)
• M37: 56,922,887 km (0.072 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 541 - 13,384 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit