🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.24

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.65 AU - 0.93 AU

Year: 248 Days

Day: 36.8 Hours

Environment

Temp: 184 °C

Axial Tilt: 15.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 116,832,630 km

• M1: 115,789 km (0.116 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.26 AU - 1.94 AU

Year: 715 Days

Day: 22.4 Hours

Environment

Temp: -34 °C

Axial Tilt: 46.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.62 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201.5

Radius: 10.6

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 5.98 AU - 9.28 AU

Year: 7442 Days

Day: 10.5 Hours

Environment

Temp: -162 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 116,832,630 km

• M1: 131,796 km (0.113 R)
• M2: 553,662 km (0.117 R)
• M3: 1,182,870 km (0.111 R)
• M4: 1,561,054 km (0.089 R)
• M5: 1,900,940 km (0.104 R)
• M6: 2,305,602 km (0.12 R)
• M7: 2,818,873 km (0.057 R)
• M8: 3,310,152 km (0.11 R)
• M9: 4,053,654 km (0.115 R)
• M10: 4,584,726 km (0.101 R)
• M11: 7,153,770 km (0.102 R)
• M12: 9,027,783 km (0.081 R)
• M13: 11,032,693 km (0.054 R)
• M14: 11,565,860 km (0.11 R)
• M15: 12,069,556 km (0.059 R)
• M16: 13,022,943 km (0.057 R)
• M17: 13,517,963 km (0.099 R)
• M18: 14,917,750 km (0.071 R)
• M19: 15,680,550 km (0.104 R)
• M20: 16,071,598 km (0.116 R)
• M21: 17,701,318 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 8.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 205.2

Radius: 9.3

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 8.49 AU - 8.51 AU

Year: 8750 Days

Day: 12.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 116,832,630 km

• M1: 118,033 km (0.113 R)
• M2: 572,361 km (0.098 R)
• M3: 1,156,392 km (0.115 R)
• M4: 1,502,112 km (0.051 R)
• M5: 2,280,919 km (0.073 R)
• M6: 2,656,559 km (0.109 R)
• M7: 3,035,191 km (0.106 R)
• M8: 3,575,090 km (0.075 R)
• M9: 4,154,333 km (0.083 R)
• M10: 5,220,666 km (0.088 R)
• M11: 5,528,090 km (0.071 R)
• M12: 6,396,955 km (0.114 R)
• M13: 8,216,065 km (0.117 R)
• M14: 9,468,348 km (0.111 R)
• M15: 10,443,876 km (0.075 R)
• M16: 11,438,253 km (0.119 R)
• M17: 12,103,216 km (0.114 R)
• M18: 14,415,849 km (0.078 R)
• M19: 16,229,723 km (0.058 R)
• M20: 19,096,617 km (0.109 R)
• M21: 20,442,250 km (0.063 R)
• M22: 20,997,856 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 626.8

Radius: 8.9

Gravity: 7.91 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 6.94 AU - 10.32 AU

Year: 8952 Days

Day: 6.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 116,832,630 km

• M1: 110,852 km (0.114 R)
• M2: 401,820 km (0.076 R)
• M3: 1,959,134 km (0.072 R)
• M4: 2,953,511 km (0.105 R)
• M5: 4,198,614 km (0.1 R)
• M6: 5,029,181 km (0.072 R)
• M7: 5,308,181 km (0.064 R)
• M8: 5,630,265 km (0.063 R)
• M9: 6,033,881 km (0.09 R)
• M10: 8,965,251 km (0.115 R)
• M11: 14,646,380 km (0.09 R)
• M12: 17,652,100 km (0.09 R)
• M13: 18,887,330 km (0.085 R)
• M14: 22,601,097 km (0.107 R)
• M15: 23,621,953 km (0.101 R)
• M16: 24,407,491 km (0.052 R)
• M17: 24,762,188 km (0.086 R)
• M18: 28,697,060 km (0.103 R)
• M19: 34,677,235 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.1

Radius: 12.7

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 8.01 AU - 10.79 AU

Year: 10176 Days

Day: 5.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 117.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 116,832,630 km

• M1: 157,975 km (0.072 R)
• M2: 873,801 km (0.109 R)
• M3: 2,366,040 km (0.069 R)
• M4: 3,131,831 km (0.094 R)
• M5: 3,836,886 km (0.114 R)
• M6: 6,179,290 km (0.081 R)
• M7: 7,207,177 km (0.093 R)
• M8: 10,433,853 km (0.115 R)
• M9: 13,097,742 km (0.084 R)
• M10: 19,241,278 km (0.086 R)
• M11: 22,036,066 km (0.114 R)
• M12: 25,872,353 km (0.115 R)
• M13: 26,871,368 km (0.104 R)
• M14: 29,053,253 km (0.11 R)
• M15: 30,571,821 km (0.11 R)
• M16: 39,357,704 km (0.079 R)
• M17: 40,279,376 km (0.098 R)
• M18: 45,249,018 km (0.076 R)
• M19: 51,078,099 km (0.105 R)
• M20: 51,546,190 km (0.044 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.7

Radius: 12.6

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 8.59 AU - 10.71 AU

Year: 10585 Days

Day: 9.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 116,832,630 km

• M1: 157,527 km (0.076 R)
• M2: 1,104,930 km (0.102 R)
• M3: 1,710,502 km (0.088 R)
• M4: 2,531,196 km (0.074 R)
• M5: 3,394,226 km (0.092 R)
• M6: 5,629,218 km (0.041 R)
• M7: 6,450,660 km (0.094 R)
• M8: 7,566,361 km (0.117 R)
• M9: 8,662,315 km (0.103 R)
• M10: 9,248,739 km (0.082 R)
• M11: 9,913,851 km (0.12 R)
• M12: 10,555,775 km (0.063 R)
• M13: 19,070,737 km (0.04 R)
• M14: 22,517,471 km (0.078 R)
• M15: 23,910,826 km (0.114 R)
• M16: 25,657,680 km (0.097 R)
• M17: 26,258,465 km (0.055 R)
• M18: 38,482,407 km (0.106 R)
• M19: 40,741,484 km (0.115 R)
• M20: 43,228,549 km (0.037 R)
• M21: 44,365,642 km (0.102 R)
• M22: 45,231,515 km (0.12 R)
• M23: 46,108,607 km (0.097 R)
• M24: 46,551,417 km (0.074 R)
• M25: 55,347,023 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342.3

Radius: 12.4

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 9.52 AU - 14.7 AU

Year: 14880 Days

Day: 12.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 116,832,630 km

• M1: 223,649 km (0.12 R)
• M2: 795,561 km (0.088 R)
• M3: 1,570,329 km (0.112 R)
• M4: 5,091,414 km (0.091 R)
• M5: 5,585,835 km (0.111 R)
• M6: 6,258,277 km (0.06 R)
• M7: 8,332,153 km (0.05 R)
• M8: 8,926,954 km (0.092 R)
• M9: 13,416,236 km (0.087 R)
• M10: 13,915,744 km (0.098 R)
• M11: 16,249,321 km (0.09 R)
• M12: 19,144,488 km (0.117 R)
• M13: 20,508,073 km (0.112 R)
• M14: 20,921,262 km (0.057 R)
• M15: 22,542,006 km (0.116 R)
• M16: 28,721,146 km (0.097 R)
• M17: 30,613,409 km (0.086 R)
• M18: 31,920,146 km (0.072 R)
• M19: 33,605,516 km (0.104 R)
• M20: 34,180,271 km (0.086 R)
• M21: 36,545,114 km (0.06 R)
• M22: 41,204,190 km (0.098 R)
• M23: 42,662,171 km (0.088 R)
• M24: 43,607,779 km (0.085 R)
• M25: 46,528,528 km (0.077 R)

Planet 9 - Ice Giant

Semi-Major Axis: 20.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 938.5

Radius: 3.2

Gravity: 91.65 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 15.66 AU - 25.12 AU

Year: 32511 Days

Day: 24.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 116,832,630 km

• M1: 39,793 km (0.035 R)
• M2: 381,325 km (0.09 R)
• M3: 527,183 km (0.097 R)
• M4: 879,486 km (0.06 R)
• M5: 2,947,527 km (0.106 R)
• M6: 3,725,137 km (0.058 R)
• M7: 4,352,550 km (0.114 R)
• M8: 4,711,735 km (0.102 R)
• M9: 5,719,127 km (0.072 R)
• M10: 5,955,641 km (0.073 R)
• M11: 7,074,932 km (0.039 R)
• M12: 7,347,649 km (0.076 R)
• M13: 8,387,354 km (0.113 R)
• M14: 8,754,767 km (0.096 R)
• M15: 10,331,678 km (0.083 R)
• M16: 10,753,693 km (0.105 R)
• M17: 11,407,885 km (0.081 R)
• M18: 12,011,512 km (0.115 R)
• M19: 13,118,237 km (0.119 R)
• M20: 14,638,900 km (0.095 R)
• M21: 15,170,870 km (0.076 R)
• M22: 16,940,014 km (0.039 R)
• M23: 17,133,893 km (0.115 R)
• M24: 17,824,287 km (0.114 R)
• M25: 18,430,458 km (0.11 R)
• M26: 21,104,819 km (0.072 R)
• M27: 23,182,883 km (0.049 R)
• M28: 23,783,518 km (0.11 R)
• M29: 27,606,342 km (0.087 R)
• M30: 28,009,658 km (0.101 R)
• M31: 30,800,107 km (0.097 R)
• M32: 33,010,416 km (0.095 R)
• M33: 33,161,510 km (0.113 R)
• M34: 41,138,666 km (0.057 R)
• M35: 50,303,780 km (0.098 R)
• M36: 60,739,129 km (0.096 R)
• M37: 65,620,807 km (0.098 R)
• M38: 66,098,922 km (0.098 R)
• M39: 73,038,468 km (0.103 R)
• M40: 75,368,006 km (0.077 R)
• M41: 84,051,564 km (0.042 R)
• M42: 94,286,302 km (0.086 R)
• M43: 95,812,948 km (0.05 R)
• M44: 111,655,363 km (0.099 R)
• M45: 113,020,743 km (0.109 R)
• M46: 114,742,913 km (0.083 R)

Kuiper Belt

Range: 31.1 - 47.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 544 - 16,785 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit