🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.2

Radius: 10.3

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.71 AU - 0.79 AU

Year: 419 Days

Day: 7.3 Hours

Environment

Temp: -134 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,969,845 km

• M1: 128,056 km (0.117 R)
• M2: 492,925 km (0.075 R)
• M3: 1,054,515 km (0.085 R)
• M4: 1,395,000 km (0.075 R)
• M5: 1,752,988 km (0.09 R)
• M6: 2,735,547 km (0.052 R)
• M7: 3,099,369 km (0.105 R)
• M8: 3,438,507 km (0.09 R)
• M9: 3,778,393 km (0.098 R)
• M10: 4,231,525 km (0.113 R)
• M11: 4,650,549 km (0.053 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640.9

Radius: 14.3

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.71 AU - 0.99 AU

Year: 506 Days

Day: 10.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,969,845 km

• M1: 178,171 km (0.067 R)
• M2: 705,354 km (0.116 R)
• M3: 1,326,634 km (0.119 R)
• M4: 1,898,247 km (0.061 R)
• M5: 3,024,570 km (0.116 R)
• M6: 4,157,923 km (0.077 R)
• M7: 4,799,848 km (0.07 R)
• M8: 5,324,039 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.2

Radius: 9.3

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.2 AU - 1.46 AU

Year: 990 Days

Day: 12.3 Hours

Environment

Temp: -169 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,969,845 km

• M1: 115,639 km (0.058 R)
• M2: 448,195 km (0.104 R)
• M3: 793,916 km (0.055 R)
• M4: 1,209,050 km (0.03 R)
• M5: 1,781,112 km (0.062 R)
• M6: 2,147,328 km (0.12 R)
• M7: 2,653,268 km (0.071 R)
• M8: 3,111,337 km (0.109 R)
• M9: 3,461,545 km (0.054 R)
• M10: 3,956,415 km (0.096 R)
• M11: 4,382,769 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.1

Radius: 9.7

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.3 AU - 1.82 AU

Year: 1258 Days

Day: 9.1 Hours

Environment

Temp: -173 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,969,845 km

• M1: 120,725 km (0.089 R)
• M2: 688,150 km (0.085 R)
• M3: 1,125,275 km (0.118 R)
• M4: 1,583,045 km (0.112 R)
• M5: 2,098,559 km (0.099 R)
• M6: 2,574,131 km (0.053 R)
• M7: 2,916,859 km (0.114 R)
• M8: 3,511,212 km (0.109 R)
• M9: 4,903,220 km (0.063 R)
• M10: 6,023,109 km (0.086 R)
• M11: 6,516,034 km (0.103 R)
• M12: 6,867,440 km (0.095 R)
• M13: 7,506,372 km (0.092 R)
• M14: 8,292,360 km (0.094 R)
• M15: 9,045,884 km (0.116 R)
• M16: 9,365,575 km (0.108 R)
• M17: 9,844,288 km (0.104 R)
• M18: 10,339,158 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.5

Radius: 15

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 1.32 AU - 2.14 AU

Year: 1469 Days

Day: 5.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 56,969,845 km

• M1: 186,698 km (0.094 R)
• M2: 702,811 km (0.079 R)
• M3: 1,270,834 km (0.101 R)
• M4: 1,751,791 km (0.073 R)
• M5: 2,428,572 km (0.095 R)
• M6: 3,101,313 km (0.118 R)
• M7: 4,334,449 km (0.117 R)
• M8: 5,083,934 km (0.093 R)
• M9: 5,873,811 km (0.048 R)
• M10: 7,406,441 km (0.115 R)
• M11: 9,010,729 km (0.06 R)
• M12: 9,594,160 km (0.107 R)
• M13: 10,202,575 km (0.091 R)
• M14: 11,076,974 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 336.2

Radius: 13.2

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.52 AU - 2.36 AU

Year: 1745 Days

Day: 10.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,969,845 km

• M1: 164,258 km (0.107 R)
• M2: 860,038 km (0.115 R)
• M3: 1,926,821 km (0.118 R)
• M4: 2,703,832 km (0.118 R)
• M5: 3,287,862 km (0.098 R)
• M6: 4,243,344 km (0.063 R)
• M7: 4,919,825 km (0.027 R)
• M8: 5,667,366 km (0.059 R)
• M9: 6,079,957 km (0.071 R)
• M10: 6,772,445 km (0.088 R)
• M11: 8,370,898 km (0.114 R)
• M12: 10,723,175 km (0.113 R)
• M13: 11,289,403 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.7

Radius: 8.1

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 4.22 AU - 5.76 AU

Year: 7197 Days

Day: 5.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 56,969,845 km

• M1: 100,829 km (0.093 R)
• M2: 364,271 km (0.036 R)
• M3: 1,332,169 km (0.11 R)
• M4: 2,081,954 km (0.114 R)
• M5: 4,006,829 km (0.103 R)
• M6: 5,127,018 km (0.06 R)
• M7: 5,573,867 km (0.06 R)
• M8: 6,477,139 km (0.068 R)
• M9: 7,587,454 km (0.094 R)
• M10: 13,870,266 km (0.102 R)
• M11: 14,270,739 km (0.058 R)
• M12: 14,915,656 km (0.061 R)
• M13: 17,624,125 km (0.094 R)
• M14: 19,270,300 km (0.077 R)
• M15: 23,829,295 km (0.104 R)
• M16: 24,238,894 km (0.047 R)
• M17: 30,477,125 km (0.068 R)
• M18: 32,238,640 km (0.109 R)
• M19: 34,066,876 km (0.115 R)

Asteroid Belt

Center: 6.73 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 455.6

Radius: 4.6

Gravity: 21.53 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 7.58 AU - 9.34 AU

Year: 15888 Days

Day: 21.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 100.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 56,969,845 km

• M1: 58,942 km (0.1 R)
• M2: 273,315 km (0.107 R)
• M3: 519,404 km (0.09 R)
• M4: 1,402,630 km (0.109 R)
• M5: 1,578,557 km (0.051 R)
• M6: 1,887,327 km (0.107 R)
• M7: 2,196,845 km (0.05 R)
• M8: 3,155,468 km (0.113 R)
• M9: 3,645,251 km (0.067 R)
• M10: 4,243,643 km (0.101 R)
• M11: 4,519,352 km (0.106 R)
• M12: 4,872,253 km (0.119 R)
• M13: 5,560,852 km (0.087 R)
• M14: 7,043,965 km (0.074 R)
• M15: 7,740,792 km (0.104 R)
• M16: 8,772,270 km (0.074 R)
• M17: 8,969,140 km (0.048 R)
• M18: 10,213,495 km (0.106 R)
• M19: 12,289,016 km (0.114 R)
• M20: 14,288,093 km (0.086 R)
• M21: 14,492,294 km (0.057 R)
• M22: 18,270,089 km (0.052 R)
• M23: 22,197,182 km (0.118 R)
• M24: 24,067,156 km (0.031 R)
• M25: 27,482,924 km (0.097 R)
• M26: 30,527,540 km (0.108 R)
• M27: 34,885,475 km (0.113 R)
• M28: 35,256,029 km (0.108 R)
• M29: 36,004,916 km (0.106 R)
• M30: 41,132,982 km (0.109 R)
• M31: 43,512,934 km (0.086 R)
• M32: 52,807,151 km (0.107 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: 382 - 15,378 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit