🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.83 AU - 0.91 AU

Year: 292 Days

Day: 45.1 Hours

Environment

Temp: 158 °C

Axial Tilt: 8.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 100,792,391 km

• M1: 138,677 km (0.094 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.82

Radius: 1.51

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.82 AU - 1.14 AU

Year: 349 Days

Day: 26.8 Hours

Environment

Temp: 124 °C

Axial Tilt: 27.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 100,792,391 km

• M1: 262,095 km (0.095 R)
• M2: 730,187 km (0.058 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.44

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.84 AU - 2.74 AU

Year: 1247 Days

Day: 21.5 Hours

Environment

Temp: -76 °C

Axial Tilt: 13.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 100,792,391 km

• M1: 1,537,717 km (0.102 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.49

Radius: 1.82

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 3.03 AU - 3.91 AU

Year: 2326 Days

Day: 29.7 Hours

Environment

Temp: -115 °C

Axial Tilt: 5.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.73 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.8

Radius: 10.7

Gravity: 7.46 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 4.86 AU - 7.1 AU

Year: 5263 Days

Day: 13.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 100,792,391 km

• M1: 133,142 km (0.102 R)
• M2: 494,571 km (0.109 R)
• M3: 916,586 km (0.029 R)
• M4: 1,631,514 km (0.115 R)
• M5: 2,014,784 km (0.104 R)
• M6: 2,561,714 km (0.106 R)
• M7: 4,497,959 km (0.062 R)
• M8: 4,869,560 km (0.034 R)
• M9: 7,011,802 km (0.117 R)
• M10: 8,467,987 km (0.08 R)
• M11: 9,120,384 km (0.101 R)
• M12: 9,893,954 km (0.103 R)
• M13: 10,851,082 km (0.104 R)
• M14: 11,328,149 km (0.063 R)
• M15: 14,206,263 km (0.073 R)
• M16: 14,893,665 km (0.068 R)
• M17: 15,844,359 km (0.104 R)
• M18: 16,334,592 km (0.073 R)
• M19: 17,089,014 km (0.111 R)
• M20: 22,957,289 km (0.075 R)
• M21: 25,289,071 km (0.076 R)
• M22: 25,874,597 km (0.078 R)
• M23: 28,939,558 km (0.093 R)
• M24: 31,367,382 km (0.097 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 724.5

Radius: 6.9

Gravity: 15.22 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 12.06 AU - 13.3 AU

Year: 16250 Days

Day: 16.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 100,792,391 km

• M1: 90,507 km (0.066 R)
• M2: 331,958 km (0.069 R)
• M3: 548,276 km (0.108 R)
• M4: 1,834,219 km (0.107 R)
• M5: 2,782,520 km (0.044 R)
• M6: 4,304,080 km (0.102 R)
• M7: 4,597,591 km (0.107 R)
• M8: 5,152,300 km (0.108 R)
• M9: 5,867,827 km (0.075 R)
• M10: 6,188,266 km (0.087 R)
• M11: 7,174,863 km (0.06 R)
• M12: 7,682,150 km (0.113 R)
• M13: 8,716,769 km (0.116 R)
• M14: 13,513,475 km (0.057 R)
• M15: 14,215,238 km (0.064 R)
• M16: 16,943,006 km (0.032 R)
• M17: 21,283,588 km (0.109 R)
• M18: 22,717,633 km (0.086 R)
• M19: 25,776,611 km (0.095 R)
• M20: 27,515,387 km (0.099 R)
• M21: 33,198,610 km (0.103 R)
• M22: 37,121,066 km (0.081 R)
• M23: 38,355,548 km (0.091 R)
• M24: 39,901,043 km (0.087 R)
• M25: 42,075,000 km (0.106 R)
• M26: 44,174,157 km (0.081 R)
• M27: 52,070,082 km (0.032 R)
• M28: 55,368,865 km (0.115 R)
• M29: 59,173,887 km (0.076 R)
• M30: 64,513,483 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 739

Radius: 7.7

Gravity: 12.46 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 13.04 AU - 13.68 AU

Year: 17574 Days

Day: 17.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 100,792,391 km

• M1: 180,864 km (0.06 R)
• M2: 846,724 km (0.099 R)
• M3: 1,147,266 km (0.106 R)
• M4: 2,505,166 km (0.118 R)
• M5: 3,083,063 km (0.044 R)
• M6: 5,430,852 km (0.07 R)
• M7: 22,084,535 km (0.061 R)
• M8: 25,469,935 km (0.104 R)
• M9: 29,659,573 km (0.076 R)
• M10: 31,234,390 km (0.077 R)
• M11: 32,483,083 km (0.111 R)
• M12: 33,376,781 km (0.11 R)
• M13: 35,346,835 km (0.094 R)
• M14: 37,811,759 km (0.09 R)
• M15: 46,049,815 km (0.09 R)
• M16: 51,353,508 km (0.104 R)
• M17: 53,266,865 km (0.082 R)
• M18: 59,480,413 km (0.078 R)
• M19: 61,396,013 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 642.2

Radius: 5.1

Gravity: 24.69 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 17.34 AU - 22.08 AU

Year: 31492 Days

Day: 18 Hours

Environment

Temp: -195 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 100,792,391 km

• M1: 63,429 km (0.046 R)
• M2: 743,501 km (0.092 R)
• M3: 1,305,092 km (0.031 R)
• M4: 1,694,645 km (0.087 R)
• M5: 1,980,676 km (0.083 R)
• M6: 2,250,999 km (0.098 R)
• M7: 2,469,562 km (0.083 R)
• M8: 4,199,661 km (0.118 R)
• M9: 6,510,051 km (0.066 R)
• M10: 6,705,425 km (0.111 R)
• M11: 7,960,851 km (0.118 R)
• M12: 9,120,533 km (0.102 R)
• M13: 12,133,135 km (0.119 R)
• M14: 15,749,065 km (0.097 R)
• M15: 21,712,336 km (0.099 R)
• M16: 22,148,862 km (0.072 R)
• M17: 23,953,910 km (0.099 R)
• M18: 29,154,381 km (0.035 R)
• M19: 31,318,464 km (0.103 R)
• M20: 35,359,102 km (0.059 R)
• M21: 35,660,392 km (0.117 R)
• M22: 36,115,469 km (0.119 R)
• M23: 36,574,286 km (0.106 R)
• M24: 40,881,209 km (0.088 R)
• M25: 43,414,050 km (0.103 R)
• M26: 44,982,883 km (0.112 R)
• M27: 45,336,532 km (0.104 R)
• M28: 47,132,904 km (0.073 R)
• M29: 49,538,437 km (0.081 R)
• M30: 74,478,347 km (0.105 R)
• M31: 83,994,567 km (0.026 R)
• M32: 96,034,353 km (0.075 R)
• M33: 100,189,284 km (0.106 R)

Kuiper Belt

Range: 30.5 - 53.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 422 - 15,131 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit