🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.1

Radius: 0.4

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.52 AU - 0.82 AU

Year: 354 Days

Day: 24 Hours

Environment

Temp: -135 °C

Axial Tilt: 5.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.9

Radius: 12.3

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.76 AU - 0.84 AU

Year: 462 Days

Day: 8.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,595,113 km

• M1: 153,039 km (0.088 R)
• M2: 590,164 km (0.047 R)
• M3: 1,170,304 km (0.06 R)
• M4: 1,650,513 km (0.055 R)
• M5: 2,039,767 km (0.118 R)
• M6: 2,652,819 km (0.115 R)
• M7: 3,794,700 km (0.12 R)
• M8: 4,179,166 km (0.108 R)
• M9: 4,883,772 km (0.105 R)
• M10: 6,245,412 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.3

Radius: 12.4

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.26 AU - 2.48 AU

Year: 2356 Days

Day: 10.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 79,595,113 km

• M1: 156,629 km (0.093 R)
• M2: 853,306 km (0.088 R)
• M3: 1,805,198 km (0.103 R)
• M4: 2,420,194 km (0.063 R)
• M5: 3,284,720 km (0.065 R)
• M6: 5,705,064 km (0.115 R)
• M7: 6,940,444 km (0.089 R)
• M8: 7,608,697 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.7

Radius: 11.4

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 3.88 AU - 4.5 AU

Year: 5538 Days

Day: 10.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 79,595,113 km

• M1: 144,661 km (0.108 R)
• M2: 502,350 km (0.06 R)
• M3: 968,197 km (0.096 R)
• M4: 1,490,593 km (0.062 R)
• M5: 1,969,157 km (0.115 R)
• M6: 2,991,359 km (0.088 R)
• M7: 3,503,881 km (0.118 R)
• M8: 4,427,648 km (0.078 R)
• M9: 5,221,863 km (0.077 R)
• M10: 6,367,185 km (0.112 R)
• M11: 9,412,698 km (0.114 R)
• M12: 10,682,485 km (0.103 R)
• M13: 12,108,302 km (0.079 R)
• M14: 12,937,523 km (0.107 R)
• M15: 13,706,007 km (0.1 R)
• M16: 15,176,255 km (0.103 R)
• M17: 16,470,426 km (0.055 R)
• M18: 17,258,508 km (0.114 R)
• M19: 19,093,027 km (0.038 R)
• M20: 19,962,789 km (0.068 R)
• M21: 20,664,552 km (0.113 R)
• M22: 22,868,877 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 973.5

Radius: 9

Gravity: 12.02 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 3.42 AU - 5.54 AU

Year: 6123 Days

Day: 8.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 79,595,113 km

• M1: 111,899 km (0.098 R)
• M2: 577,149 km (0.113 R)
• M3: 1,491,640 km (0.099 R)
• M4: 1,816,268 km (0.089 R)
• M5: 2,155,107 km (0.102 R)
• M6: 2,573,083 km (0.113 R)
• M7: 3,323,167 km (0.087 R)
• M8: 4,290,617 km (0.08 R)
• M9: 4,868,364 km (0.098 R)
• M10: 5,342,738 km (0.115 R)
• M11: 5,750,542 km (0.12 R)
• M12: 6,212,949 km (0.106 R)
• M13: 6,699,890 km (0.096 R)
• M14: 7,632,483 km (0.113 R)
• M15: 9,525,794 km (0.117 R)
• M16: 10,557,122 km (0.058 R)
• M17: 11,609,244 km (0.111 R)
• M18: 14,876,910 km (0.068 R)
• M19: 17,254,768 km (0.112 R)
• M20: 19,949,474 km (0.064 R)
• M21: 22,587,782 km (0.077 R)
• M22: 24,328,653 km (0.12 R)
• M23: 32,809,356 km (0.112 R)
• M24: 35,146,524 km (0.062 R)
• M25: 35,912,914 km (0.101 R)
• M26: 36,355,723 km (0.082 R)
• M27: 36,802,273 km (0.112 R)
• M28: 38,278,804 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.7

Radius: 11.7

Gravity: 7.24 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 4.66 AU - 6.52 AU

Year: 8534 Days

Day: 10.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 79,595,113 km

• M1: 149,299 km (0.09 R)
• M2: 558,449 km (0.109 R)
• M3: 1,580,502 km (0.069 R)
• M4: 1,990,549 km (0.077 R)
• M5: 2,649,378 km (0.099 R)
• M6: 3,826,863 km (0.105 R)
• M7: 4,460,560 km (0.083 R)
• M8: 5,626,077 km (0.117 R)
• M9: 6,484,320 km (0.083 R)
• M10: 7,224,081 km (0.048 R)
• M11: 8,062,577 km (0.065 R)
• M12: 9,883,183 km (0.104 R)
• M13: 10,391,068 km (0.078 R)
• M14: 12,599,581 km (0.046 R)
• M15: 13,136,638 km (0.106 R)
• M16: 15,371,929 km (0.07 R)
• M17: 16,900,371 km (0.089 R)
• M18: 17,554,113 km (0.074 R)
• M19: 20,338,728 km (0.083 R)
• M20: 22,350,969 km (0.1 R)
• M21: 22,786,448 km (0.088 R)
• M22: 23,944,934 km (0.091 R)
• M23: 24,400,909 km (0.119 R)
• M24: 25,142,316 km (0.062 R)
• M25: 25,613,399 km (0.115 R)
• M26: 27,856,470 km (0.117 R)
• M27: 29,805,880 km (0.079 R)
• M28: 30,333,511 km (0.102 R)
• M29: 34,319,248 km (0.119 R)
• M30: 35,250,195 km (0.058 R)
• M31: 45,505,428 km (0.08 R)
• M32: 46,912,546 km (0.072 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 714.8

Radius: 3

Gravity: 79.42 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 7 AU - 11 AU

Year: 17433 Days

Day: 22 Hours

Environment

Temp: -224 °C

Axial Tilt: 135.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 79,595,113 km

• M1: 38,596 km (0.052 R)
• M2: 138,827 km (0.054 R)
• M3: 247,435 km (0.107 R)
• M4: 342,130 km (0.073 R)
• M5: 461,659 km (0.089 R)
• M6: 670,647 km (0.116 R)
• M7: 839,094 km (0.119 R)
• M8: 1,347,129 km (0.042 R)
• M9: 1,565,991 km (0.098 R)
• M10: 2,755,294 km (0.039 R)
• M11: 3,545,021 km (0.089 R)
• M12: 3,778,842 km (0.073 R)
• M13: 4,817,799 km (0.091 R)
• M14: 5,177,882 km (0.098 R)
• M15: 5,831,026 km (0.12 R)
• M16: 6,281,764 km (0.072 R)
• M17: 6,888,384 km (0.109 R)
• M18: 8,067,215 km (0.114 R)
• M19: 8,217,112 km (0.101 R)
• M20: 8,471,129 km (0.056 R)
• M21: 8,574,202 km (0.086 R)
• M22: 12,799,893 km (0.12 R)
• M23: 13,770,484 km (0.091 R)
• M24: 14,863,745 km (0.068 R)
• M25: 15,164,886 km (0.072 R)
• M26: 15,857,075 km (0.072 R)
• M27: 18,662,185 km (0.063 R)
• M28: 19,998,393 km (0.114 R)
• M29: 24,911,337 km (0.119 R)
• M30: 25,335,895 km (0.031 R)
• M31: 27,418,747 km (0.087 R)
• M32: 40,283,266 km (0.119 R)
• M33: 42,807,132 km (0.096 R)
• M34: 48,331,332 km (0.104 R)
• M35: 51,863,637 km (0.079 R)
• M36: 52,208,759 km (0.067 R)
• M37: 52,555,378 km (0.043 R)
• M38: 53,780,734 km (0.08 R)
• M39: 54,311,806 km (0.111 R)
• M40: 56,652,863 km (0.108 R)
• M41: 58,126,552 km (0.093 R)
• M42: 59,248,386 km (0.087 R)
• M43: 65,074,924 km (0.096 R)
• M44: 68,540,060 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 551.6

Radius: 6

Gravity: 15.32 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 9.89 AU - 12.29 AU

Year: 23846 Days

Day: 22.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 79,595,113 km

• M1: 80,484 km (0.105 R)
• M2: 1,004,849 km (0.11 R)
• M3: 1,408,763 km (0.07 R)
• M4: 2,179,043 km (0.113 R)
• M5: 3,878,325 km (0.088 R)
• M6: 4,438,120 km (0.053 R)
• M7: 5,125,821 km (0.099 R)
• M8: 5,475,432 km (0.042 R)
• M9: 10,685,327 km (0.119 R)
• M10: 11,779,935 km (0.102 R)
• M11: 12,806,027 km (0.059 R)
• M12: 14,341,050 km (0.116 R)
• M13: 21,214,923 km (0.083 R)
• M14: 25,522,294 km (0.067 R)
• M15: 30,378,092 km (0.119 R)
• M16: 38,836,355 km (0.091 R)
• M17: 42,178,671 km (0.095 R)
• M18: 50,654,138 km (0.068 R)
• M19: 54,635,985 km (0.083 R)
• M20: 62,198,456 km (0.046 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 366 - 16,391 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit