🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.12

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.59 AU - 0.62 AU

Year: 305 Days

Day: 21.4 Hours

Environment

Temp: -119 °C

Axial Tilt: 27.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 85,065,403 km

• M1: 43,234 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.8

Radius: 14.6

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.65 AU - 0.75 AU

Year: 384 Days

Day: 7.9 Hours

Environment

Temp: -129 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 85,065,403 km

• M1: 181,612 km (0.102 R)
• M2: 652,546 km (0.071 R)
• M3: 1,116,898 km (0.097 R)
• M4: 1,572,423 km (0.072 R)
• M5: 2,063,104 km (0.063 R)
• M6: 2,630,080 km (0.107 R)
• M7: 3,216,354 km (0.113 R)
• M8: 3,735,908 km (0.103 R)
• M9: 4,324,426 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.1

Radius: 11.4

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.63 AU - 2.61 AU

Year: 2025 Days

Day: 9.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 85,065,403 km

• M1: 141,819 km (0.095 R)
• M2: 502,050 km (0.084 R)
• M3: 883,525 km (0.116 R)
• M4: 1,253,181 km (0.062 R)
• M5: 2,064,451 km (0.067 R)
• M6: 2,776,237 km (0.066 R)
• M7: 3,301,775 km (0.097 R)
• M8: 5,000,758 km (0.07 R)
• M9: 5,434,741 km (0.071 R)
• M10: 6,006,803 km (0.052 R)
• M11: 6,618,808 km (0.096 R)
• M12: 7,168,730 km (0.06 R)
• M13: 7,534,347 km (0.106 R)
• M14: 8,360,127 km (0.095 R)
• M15: 9,123,675 km (0.064 R)
• M16: 9,869,271 km (0.038 R)
• M17: 11,411,326 km (0.1 R)

Asteroid Belt

Center: 2.51 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.9

Radius: 13.3

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 2.33 AU - 3.47 AU

Year: 3240 Days

Day: 11.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 143.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 85,065,403 km

• M1: 165,455 km (0.105 R)
• M2: 647,609 km (0.094 R)
• M3: 1,203,814 km (0.082 R)
• M4: 1,700,928 km (0.098 R)
• M5: 2,525,511 km (0.077 R)
• M6: 3,450,325 km (0.082 R)
• M7: 3,940,408 km (0.099 R)
• M8: 5,966,561 km (0.108 R)
• M9: 6,915,610 km (0.107 R)
• M10: 8,507,631 km (0.071 R)
• M11: 9,150,004 km (0.074 R)
• M12: 10,451,655 km (0.108 R)
• M13: 10,980,783 km (0.108 R)
• M14: 11,527,713 km (0.088 R)
• M15: 13,278,756 km (0.107 R)
• M16: 13,851,566 km (0.049 R)
• M17: 16,581,428 km (0.086 R)
• M18: 17,246,091 km (0.115 R)
• M19: 18,044,046 km (0.107 R)
• M20: 21,942,567 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.3

Radius: 12.9

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 3.51 AU - 4.21 AU

Year: 4975 Days

Day: 5.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 85,065,403 km

• M1: 160,519 km (0.092 R)
• M2: 647,460 km (0.108 R)
• M3: 1,297,462 km (0.072 R)
• M4: 1,817,315 km (0.091 R)
• M5: 2,492,301 km (0.081 R)
• M6: 3,412,178 km (0.092 R)
• M7: 4,806,879 km (0.111 R)
• M8: 5,443,418 km (0.12 R)
• M9: 6,357,760 km (0.08 R)
• M10: 8,888,058 km (0.101 R)
• M11: 10,155,302 km (0.109 R)
• M12: 10,694,602 km (0.101 R)
• M13: 11,347,896 km (0.084 R)
• M14: 11,879,866 km (0.114 R)
• M15: 15,961,794 km (0.067 R)
• M16: 16,630,197 km (0.11 R)
• M17: 18,284,450 km (0.081 R)
• M18: 21,622,727 km (0.096 R)
• M19: 22,668,266 km (0.109 R)
• M20: 23,591,135 km (0.07 R)
• M21: 29,389,998 km (0.113 R)
• M22: 31,992,253 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841

Radius: 14.1

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 5.46 AU - 5.84 AU

Year: 8810 Days

Day: 5.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 85,065,403 km

• M1: 190,139 km (0.083 R)
• M2: 732,282 km (0.065 R)
• M3: 1,456,934 km (0.038 R)
• M4: 2,260,125 km (0.104 R)
• M5: 3,049,553 km (0.08 R)
• M6: 3,707,035 km (0.102 R)
• M7: 4,344,472 km (0.115 R)
• M8: 5,340,046 km (0.111 R)
• M9: 5,875,157 km (0.078 R)
• M10: 6,519,774 km (0.097 R)
• M11: 7,291,101 km (0.088 R)
• M12: 7,824,567 km (0.101 R)
• M13: 8,472,475 km (0.031 R)
• M14: 9,729,098 km (0.093 R)
• M15: 10,275,279 km (0.101 R)
• M16: 13,563,441 km (0.103 R)
• M17: 16,294,200 km (0.119 R)
• M18: 17,497,266 km (0.078 R)
• M19: 18,531,885 km (0.049 R)
• M20: 20,561,031 km (0.082 R)
• M21: 22,219,921 km (0.059 R)
• M22: 27,142,888 km (0.102 R)
• M23: 29,341,977 km (0.11 R)
• M24: 29,857,940 km (0.061 R)
• M25: 32,638,964 km (0.12 R)
• M26: 35,705,272 km (0.094 R)
• M27: 37,853,198 km (0.106 R)
• M28: 41,363,811 km (0.036 R)
• M29: 42,668,454 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 257.8

Radius: 3.1

Gravity: 26.83 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 7.98 AU - 8.5 AU

Year: 15517 Days

Day: 22.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 85,065,403 km

• M1: 38,596 km (0.062 R)
• M2: 228,436 km (0.086 R)
• M3: 580,589 km (0.063 R)
• M4: 843,732 km (0.101 R)
• M5: 1,585,887 km (0.097 R)
• M6: 2,703,982 km (0.097 R)
• M7: 4,013,412 km (0.105 R)
• M8: 4,491,078 km (0.099 R)
• M9: 5,424,568 km (0.077 R)
• M10: 6,258,876 km (0.091 R)
• M11: 6,442,881 km (0.087 R)
• M12: 13,790,979 km (0.082 R)
• M13: 16,486,134 km (0.059 R)
• M14: 19,047,998 km (0.083 R)
• M15: 22,888,474 km (0.113 R)
• M16: 25,219,658 km (0.044 R)
• M17: 27,507,458 km (0.098 R)
• M18: 33,824,079 km (0.1 R)
• M19: 41,556,344 km (0.053 R)
• M20: 42,336,347 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 511.1

Radius: 3.5

Gravity: 41.72 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 7.96 AU - 11.06 AU

Year: 19239 Days

Day: 16 Hours

Environment

Temp: -235 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 85,065,403 km

• M1: 63,729 km (0.084 R)
• M2: 184,454 km (0.086 R)
• M3: 468,989 km (0.115 R)
• M4: 938,128 km (0.099 R)
• M5: 1,395,898 km (0.056 R)
• M6: 1,632,262 km (0.042 R)
• M7: 2,225,119 km (0.078 R)
• M8: 2,350,631 km (0.104 R)
• M9: 2,684,983 km (0.111 R)
• M10: 3,475,458 km (0.096 R)
• M11: 3,702,248 km (0.065 R)
• M12: 6,457,990 km (0.107 R)
• M13: 6,713,952 km (0.047 R)
• M14: 7,200,744 km (0.062 R)
• M15: 7,569,353 km (0.067 R)
• M16: 10,105,785 km (0.107 R)
• M17: 10,744,119 km (0.057 R)
• M18: 11,972,916 km (0.083 R)
• M19: 14,128,920 km (0.092 R)
• M20: 14,560,062 km (0.114 R)
• M21: 15,448,673 km (0.098 R)
• M22: 15,983,336 km (0.11 R)
• M23: 16,372,739 km (0.07 R)
• M24: 21,175,429 km (0.096 R)
• M25: 21,834,707 km (0.107 R)
• M26: 36,559,326 km (0.095 R)
• M27: 36,693,815 km (0.117 R)
• M28: 37,370,745 km (0.104 R)
• M29: 37,918,423 km (0.057 R)
• M30: 43,089,572 km (0.063 R)
• M31: 43,540,460 km (0.098 R)
• M32: 43,691,554 km (0.118 R)
• M33: 43,842,947 km (0.083 R)
• M34: 46,470,185 km (0.068 R)
• M35: 49,364,305 km (0.102 R)
• M36: 49,528,564 km (0.094 R)
• M37: 50,521,595 km (0.065 R)
• M38: 54,276,052 km (0.1 R)
• M39: 54,626,261 km (0.086 R)
• M40: 54,802,038 km (0.105 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 797.8

Radius: 5.9

Gravity: 22.92 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 10.06 AU - 10.68 AU

Year: 21907 Days

Day: 23.4 Hours

Environment

Temp: -241 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 85,065,403 km

• M1: 102,475 km (0.107 R)
• M2: 348,862 km (0.104 R)
• M3: 703,559 km (0.087 R)
• M4: 1,003,203 km (0.053 R)
• M5: 1,233,734 km (0.06 R)
• M6: 1,549,984 km (0.118 R)
• M7: 2,484,821 km (0.119 R)
• M8: 3,811,903 km (0.116 R)
• M9: 4,555,405 km (0.055 R)
• M10: 4,923,565 km (0.096 R)
• M11: 5,391,358 km (0.106 R)
• M12: 7,462,391 km (0.078 R)
• M13: 9,239,763 km (0.105 R)
• M14: 11,682,547 km (0.064 R)
• M15: 12,162,307 km (0.093 R)
• M16: 22,563,099 km (0.057 R)
• M17: 23,092,675 km (0.059 R)
• M18: 29,225,590 km (0.078 R)
• M19: 36,651,329 km (0.081 R)
• M20: 38,573,512 km (0.056 R)
• M21: 43,263,704 km (0.117 R)
• M22: 44,410,372 km (0.115 R)
• M23: 56,816,374 km (0.068 R)
• M24: 68,879,348 km (0.069 R)
• M25: 75,739,906 km (0.096 R)
• M26: 79,578,438 km (0.114 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: 321 - 15,911 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit