🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.64

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.46 AU - 0.56 AU

Year: 235 Days

Day: 22.2 Hours

Environment

Temp: -121 °C

Axial Tilt: 36.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.8

Radius: 14.5

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.63 AU - 0.75 AU

Year: 370 Days

Day: 6.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,034,111 km

• M1: 181,313 km (0.057 R)
• M2: 717,322 km (0.089 R)
• M3: 1,175,690 km (0.067 R)
• M4: 1,714,840 km (0.081 R)
• M5: 2,571,737 km (0.086 R)
• M6: 3,055,537 km (0.1 R)
• M7: 5,214,982 km (0.108 R)
• M8: 5,929,312 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.9

Radius: 9.6

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.71 AU - 0.75 AU

Year: 403 Days

Day: 12.5 Hours

Environment

Temp: -151 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,034,111 km

• M1: 119,379 km (0.084 R)
• M2: 468,092 km (0.106 R)
• M3: 875,896 km (0.114 R)
• M4: 1,684,322 km (0.104 R)
• M5: 2,023,910 km (0.094 R)
• M6: 2,672,865 km (0.085 R)
• M7: 2,974,454 km (0.12 R)
• M8: 3,381,361 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140

Radius: 9.2

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.16 AU - 3.2 AU

Year: 2833 Days

Day: 5 Hours

Environment

Temp: -201 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 35,034,111 km

• M1: 114,442 km (0.058 R)
• M2: 440,117 km (0.119 R)
• M3: 835,504 km (0.029 R)
• M4: 1,213,688 km (0.103 R)
• M5: 1,733,690 km (0.028 R)
• M6: 2,267,305 km (0.062 R)
• M7: 2,879,759 km (0.091 R)
• M8: 3,791,708 km (0.105 R)
• M9: 5,003,002 km (0.116 R)
• M10: 5,389,413 km (0.11 R)
• M11: 6,501,972 km (0.075 R)
• M12: 7,163,195 km (0.12 R)
• M13: 8,420,116 km (0.113 R)
• M14: 9,175,585 km (0.091 R)
• M15: 9,631,560 km (0.049 R)
• M16: 11,678,807 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.4

Radius: 12.5

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 2.1 AU - 3.28 AU

Year: 2849 Days

Day: 8.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,034,111 km

• M1: 156,330 km (0.089 R)
• M2: 622,477 km (0.116 R)
• M3: 1,154,297 km (0.059 R)
• M4: 1,986,211 km (0.077 R)
• M5: 4,432,136 km (0.104 R)
• M6: 5,271,829 km (0.073 R)
• M7: 7,808,710 km (0.112 R)
• M8: 9,595,806 km (0.091 R)
• M9: 10,483,370 km (0.057 R)
• M10: 11,282,073 km (0.117 R)
• M11: 13,396,190 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40

Radius: 13

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 2.6 AU - 2.88 AU

Year: 2928 Days

Day: 10.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 35,034,111 km

• M1: 162,014 km (0.033 R)
• M2: 770,130 km (0.094 R)
• M3: 1,259,764 km (0.087 R)
• M4: 1,924,277 km (0.118 R)
• M5: 2,547,203 km (0.103 R)
• M6: 5,203,912 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.8

Radius: 12.9

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 2.65 AU - 2.95 AU

Year: 3025 Days

Day: 7.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 35,034,111 km

• M1: 160,369 km (0.086 R)
• M2: 658,679 km (0.106 R)
• M3: 1,069,326 km (0.031 R)
• M4: 1,625,979 km (0.112 R)
• M5: 2,257,581 km (0.079 R)
• M6: 2,843,556 km (0.059 R)
• M7: 4,146,853 km (0.101 R)
• M8: 5,056,408 km (0.113 R)
• M9: 5,761,014 km (0.034 R)
• M10: 6,180,187 km (0.098 R)
• M11: 6,679,994 km (0.088 R)
• M12: 7,496,648 km (0.077 R)
• M13: 10,431,310 km (0.075 R)
• M14: 13,178,974 km (0.051 R)
• M15: 14,514,434 km (0.065 R)
• M16: 15,083,804 km (0.097 R)
• M17: 15,667,834 km (0.079 R)
• M18: 17,108,760 km (0.103 R)
• M19: 17,627,566 km (0.116 R)
• M20: 18,395,452 km (0.09 R)
• M21: 19,934,664 km (0.12 R)
• M22: 21,292,863 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.2

Radius: 11.7

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 2.64 AU - 3.42 AU

Year: 3405 Days

Day: 13.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,034,111 km

• M1: 145,559 km (0.075 R)
• M2: 672,742 km (0.034 R)
• M3: 1,205,908 km (0.052 R)
• M4: 2,013,737 km (0.08 R)
• M5: 2,624,844 km (0.092 R)
• M6: 3,220,094 km (0.111 R)
• M7: 4,000,546 km (0.059 R)
• M8: 5,366,973 km (0.046 R)
• M9: 5,784,052 km (0.098 R)
• M10: 7,109,639 km (0.061 R)
• M11: 8,464,098 km (0.101 R)
• M12: 11,040,921 km (0.106 R)
• M13: 12,721,653 km (0.117 R)
• M14: 13,421,771 km (0.099 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.1

Radius: 9.8

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 5.06 AU - 5.14 AU

Year: 7437 Days

Day: 13.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 35,034,111 km

• M1: 121,922 km (0.046 R)
• M2: 459,565 km (0.056 R)
• M3: 813,364 km (0.052 R)
• M4: 1,408,614 km (0.073 R)
• M5: 3,237,298 km (0.104 R)
• M6: 4,728,190 km (0.107 R)
• M7: 5,370,115 km (0.097 R)
• M8: 5,948,460 km (0.07 R)
• M9: 6,472,202 km (0.069 R)
• M10: 6,926,531 km (0.118 R)
• M11: 9,360,788 km (0.105 R)
• M12: 15,043,562 km (0.092 R)
• M13: 16,667,896 km (0.12 R)
• M14: 18,342,045 km (0.05 R)
• M15: 19,451,912 km (0.076 R)
• M16: 20,953,875 km (0.072 R)
• M17: 29,025,727 km (0.038 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 162.9

Radius: 6.5

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 7.14 AU - 7.52 AU

Year: 12814 Days

Day: 15.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 35,034,111 km

• M1: 84,224 km (0.063 R)
• M2: 313,108 km (0.054 R)
• M3: 681,119 km (0.116 R)
• M4: 1,780,514 km (0.111 R)
• M5: 3,223,685 km (0.101 R)
• M6: 3,617,875 km (0.083 R)
• M7: 4,609,110 km (0.093 R)
• M8: 4,939,123 km (0.103 R)
• M9: 5,554,270 km (0.044 R)
• M10: 6,971,410 km (0.111 R)
• M11: 8,053,601 km (0.06 R)
• M12: 8,492,073 km (0.061 R)
• M13: 9,115,447 km (0.045 R)
• M14: 12,538,246 km (0.096 R)
• M15: 16,477,308 km (0.071 R)
• M16: 17,776,266 km (0.032 R)
• M17: 18,519,169 km (0.114 R)
• M18: 18,725,315 km (0.056 R)
• M19: 21,320,090 km (0.11 R)
• M20: 26,594,612 km (0.076 R)
• M21: 27,209,908 km (0.064 R)
• M22: 27,565,652 km (0.1 R)
• M23: 28,835,438 km (0.102 R)
• M24: 29,765,937 km (0.056 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 228 - 19,273 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit