🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.96

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.48 AU - 0.76 AU

Year: 320 Days

Day: 14.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 14.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 64,456,544 km

• M1: 826,079 km (0.056 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.5

Radius: 11.8

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.57 AU - 0.85 AU

Year: 392 Days

Day: 7.6 Hours

Environment

Temp: -139 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,456,544 km

• M1: 147,354 km (0.1 R)
• M2: 591,660 km (0.098 R)
• M3: 1,271,731 km (0.05 R)
• M4: 1,659,040 km (0.11 R)
• M5: 2,075,670 km (0.063 R)
• M6: 2,741,531 km (0.118 R)
• M7: 3,261,234 km (0.113 R)
• M8: 4,288,073 km (0.093 R)
• M9: 4,793,714 km (0.107 R)
• M10: 5,179,078 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.6

Radius: 8.5

Gravity: 13.82 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.87 AU - 0.97 AU

Year: 579 Days

Day: 6.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,456,544 km

• M1: 105,766 km (0.09 R)
• M2: 455,825 km (0.102 R)
• M3: 813,064 km (0.078 R)
• M4: 1,215,034 km (0.084 R)
• M5: 1,485,507 km (0.086 R)
• M6: 1,754,334 km (0.071 R)
• M7: 2,018,823 km (0.12 R)
• M8: 2,498,584 km (0.104 R)
• M9: 2,894,719 km (0.062 R)
• M10: 4,063,527 km (0.102 R)
• M11: 4,564,231 km (0.034 R)
• M12: 4,914,739 km (0.099 R)
• M13: 5,193,888 km (0.081 R)
• M14: 5,520,461 km (0.075 R)
• M15: 6,500,327 km (0.1 R)
• M16: 6,858,763 km (0.114 R)
• M17: 7,432,172 km (0.108 R)
• M18: 7,918,365 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.5

Radius: 8.1

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.21 AU - 1.55 AU

Year: 1063 Days

Day: 6.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,456,544 km

• M1: 100,679 km (0.091 R)
• M2: 439,818 km (0.076 R)
• M3: 1,054,067 km (0.113 R)
• M4: 1,527,095 km (0.09 R)
• M5: 2,031,389 km (0.037 R)
• M6: 2,511,299 km (0.091 R)
• M7: 3,627,300 km (0.12 R)
• M8: 4,164,805 km (0.1 R)
• M9: 4,721,159 km (0.101 R)
• M10: 5,981,671 km (0.055 R)
• M11: 7,163,045 km (0.108 R)
• M12: 7,566,511 km (0.04 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.9

Radius: 14.6

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.87 AU - 2.17 AU

Year: 1883 Days

Day: 13.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 64,456,544 km

• M1: 191,635 km (0.091 R)
• M2: 647,310 km (0.11 R)
• M3: 1,162,375 km (0.102 R)
• M4: 1,772,436 km (0.059 R)
• M5: 3,856,633 km (0.103 R)
• M6: 4,475,819 km (0.056 R)
• M7: 5,892,810 km (0.111 R)
• M8: 6,402,639 km (0.12 R)
• M9: 7,274,645 km (0.093 R)
• M10: 9,194,734 km (0.088 R)
• M11: 9,979,375 km (0.066 R)
• M12: 10,774,338 km (0.112 R)
• M13: 12,908,800 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 356.9

Radius: 13.8

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 2.45 AU - 3.01 AU

Year: 2959 Days

Day: 11.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,456,544 km

• M1: 171,738 km (0.07 R)
• M2: 716,873 km (0.095 R)
• M3: 1,154,447 km (0.069 R)
• M4: 1,706,463 km (0.04 R)
• M5: 2,753,498 km (0.108 R)
• M6: 3,229,818 km (0.088 R)
• M7: 3,889,245 km (0.054 R)
• M8: 4,391,146 km (0.038 R)
• M9: 5,456,134 km (0.095 R)
• M10: 6,087,736 km (0.117 R)
• M11: 8,279,943 km (0.067 R)
• M12: 8,787,977 km (0.057 R)
• M13: 9,350,465 km (0.085 R)
• M14: 9,901,733 km (0.07 R)
• M15: 11,375,572 km (0.081 R)
• M16: 13,203,358 km (0.055 R)
• M17: 14,986,116 km (0.114 R)
• M18: 15,984,084 km (0.087 R)
• M19: 16,723,546 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828.3

Radius: 9.9

Gravity: 8.45 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 3.54 AU - 3.64 AU

Year: 4462 Days

Day: 8.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 64,456,544 km

• M1: 123,119 km (0.103 R)
• M2: 443,707 km (0.078 R)
• M3: 832,512 km (0.092 R)
• M4: 1,555,369 km (0.079 R)
• M5: 2,066,695 km (0.091 R)
• M6: 2,687,376 km (0.078 R)
• M7: 3,206,331 km (0.108 R)
• M8: 5,450,898 km (0.096 R)
• M9: 6,037,920 km (0.108 R)
• M10: 6,830,489 km (0.104 R)
• M11: 7,234,852 km (0.075 R)
• M12: 8,128,849 km (0.104 R)
• M13: 9,094,803 km (0.029 R)
• M14: 10,178,639 km (0.063 R)
• M15: 11,069,195 km (0.046 R)
• M16: 11,723,088 km (0.099 R)
• M17: 14,543,307 km (0.115 R)
• M18: 17,913,447 km (0.09 R)
• M19: 18,296,119 km (0.064 R)
• M20: 24,553,050 km (0.082 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.9

Radius: 9.8

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 3.45 AU - 5.45 AU

Year: 6158 Days

Day: 11 Hours

Environment

Temp: -212 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 64,456,544 km

• M1: 121,922 km (0.078 R)
• M2: 571,613 km (0.115 R)
• M3: 896,690 km (0.093 R)
• M4: 1,333,366 km (0.12 R)
• M5: 3,353,236 km (0.105 R)
• M6: 7,423,046 km (0.091 R)
• M7: 10,268,547 km (0.084 R)
• M8: 10,941,738 km (0.071 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.1

Radius: 10.8

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 4.23 AU - 6.19 AU

Year: 7801 Days

Day: 7.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 64,456,544 km

• M1: 135,386 km (0.085 R)
• M2: 1,154,148 km (0.083 R)
• M3: 2,220,032 km (0.071 R)
• M4: 2,758,734 km (0.111 R)
• M5: 3,705,240 km (0.092 R)
• M6: 4,412,389 km (0.101 R)
• M7: 4,770,377 km (0.079 R)
• M8: 5,147,513 km (0.045 R)
• M9: 5,864,237 km (0.099 R)
• M10: 6,297,921 km (0.064 R)
• M11: 7,887,548 km (0.042 R)
• M12: 10,775,235 km (0.1 R)
• M13: 11,842,018 km (0.061 R)
• M14: 13,429,102 km (0.071 R)
• M15: 15,091,583 km (0.095 R)
• M16: 15,464,979 km (0.091 R)
• M17: 17,154,837 km (0.119 R)
• M18: 21,052,310 km (0.047 R)
• M19: 21,597,295 km (0.086 R)
• M20: 23,871,781 km (0.096 R)
• M21: 25,240,901 km (0.091 R)
• M22: 26,661,781 km (0.104 R)
• M23: 27,576,423 km (0.097 R)
• M24: 31,344,344 km (0.085 R)
• M25: 33,193,972 km (0.095 R)
• M26: 34,038,901 km (0.112 R)
• M27: 36,771,755 km (0.089 R)
• M28: 38,480,013 km (0.117 R)
• M29: 39,061,051 km (0.118 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 290.8

Radius: 4.2

Gravity: 16.49 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 8.4 AU - 13.6 AU

Year: 23933 Days

Day: 22.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 64,456,544 km

• M1: 52,509 km (0.089 R)
• M2: 210,634 km (0.098 R)
• M3: 648,656 km (0.087 R)
• M4: 795,711 km (0.105 R)
• M5: 1,058,555 km (0.063 R)
• M6: 1,210,546 km (0.089 R)
• M7: 1,622,987 km (0.111 R)
• M8: 1,934,001 km (0.119 R)
• M9: 2,813,637 km (0.116 R)
• M10: 4,112,595 km (0.061 R)
• M11: 6,039,266 km (0.098 R)
• M12: 7,675,867 km (0.041 R)
• M13: 8,346,664 km (0.077 R)
• M14: 8,495,364 km (0.12 R)
• M15: 9,694,989 km (0.1 R)
• M16: 14,385,032 km (0.114 R)
• M17: 15,106,393 km (0.038 R)
• M18: 15,700,596 km (0.11 R)
• M19: 17,739,316 km (0.082 R)
• M20: 18,821,806 km (0.072 R)
• M21: 22,908,969 km (0.071 R)
• M22: 24,392,681 km (0.106 R)
• M23: 30,498,069 km (0.119 R)
• M24: 31,565,450 km (0.076 R)
• M25: 32,290,850 km (0.077 R)
• M26: 33,524,284 km (0.067 R)
• M27: 34,661,079 km (0.107 R)
• M28: 36,744,827 km (0.08 R)
• M29: 39,744,265 km (0.063 R)
• M30: 48,266,107 km (0.043 R)
• M31: 48,585,499 km (0.083 R)
• M32: 49,067,054 km (0.113 R)
• M33: 55,096,746 km (0.112 R)
• M34: 61,789,306 km (0.102 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: 222 - 19,921 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit