🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 292.4

Radius: 11.2

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.48 AU - 0.54 AU

Year: 243 Days

Day: 14.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 83,217,251 km

• M1: 139,276 km (0.083 R)
• M2: 502,350 km (0.091 R)
• M3: 1,007,691 km (0.077 R)
• M4: 1,362,388 km (0.095 R)
• M5: 2,654,315 km (0.036 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.3

Radius: 14.8

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.79 AU - 0.97 AU

Year: 550 Days

Day: 6.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 83,217,251 km

• M1: 184,155 km (0.078 R)
• M2: 696,827 km (0.062 R)
• M3: 1,175,690 km (0.113 R)
• M4: 2,444,280 km (0.097 R)
• M5: 3,040,427 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.7

Radius: 12.5

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.97 AU - 1.05 AU

Year: 677 Days

Day: 8.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 83,217,251 km

• M1: 155,432 km (0.108 R)
• M2: 1,097,001 km (0.114 R)
• M3: 1,980,526 km (0.108 R)
• M4: 4,030,466 km (0.086 R)
• M5: 4,697,523 km (0.069 R)
• M6: 5,583,890 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.5

Radius: 13.7

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.06 AU - 2.88 AU

Year: 2589 Days

Day: 9.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 83,217,251 km

• M1: 170,392 km (0.043 R)
• M2: 719,865 km (0.116 R)
• M3: 1,589,627 km (0.118 R)
• M4: 2,157,052 km (0.099 R)
• M5: 3,186,883 km (0.055 R)
• M6: 3,862,318 km (0.104 R)
• M7: 5,526,445 km (0.058 R)
• M8: 6,068,587 km (0.058 R)
• M9: 8,072,600 km (0.107 R)
• M10: 8,841,085 km (0.116 R)
• M11: 9,621,387 km (0.088 R)
• M12: 13,029,975 km (0.083 R)
• M13: 16,167,790 km (0.107 R)
• M14: 18,615,211 km (0.068 R)
• M15: 19,424,536 km (0.081 R)
• M16: 20,136,771 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.5

Radius: 12.9

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 3.09 AU - 4.51 AU

Year: 4940 Days

Day: 9.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 83,217,251 km

• M1: 160,369 km (0.062 R)
• M2: 578,196 km (0.113 R)
• M3: 1,345,782 km (0.053 R)
• M4: 1,834,070 km (0.12 R)
• M5: 2,410,620 km (0.102 R)
• M6: 2,946,779 km (0.11 R)
• M7: 3,366,850 km (0.078 R)
• M8: 3,932,629 km (0.061 R)
• M9: 5,629,667 km (0.119 R)
• M10: 6,400,395 km (0.086 R)
• M11: 7,636,672 km (0.118 R)
• M12: 8,951,189 km (0.087 R)
• M13: 10,123,587 km (0.118 R)
• M14: 11,617,771 km (0.071 R)
• M15: 16,297,641 km (0.087 R)
• M16: 16,751,072 km (0.076 R)
• M17: 17,506,092 km (0.086 R)
• M18: 18,041,802 km (0.105 R)
• M19: 19,271,796 km (0.057 R)
• M20: 19,715,204 km (0.097 R)
• M21: 22,311,924 km (0.049 R)
• M22: 23,873,427 km (0.036 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.2

Radius: 8.8

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 3.83 AU - 4.41 AU

Year: 5577 Days

Day: 6.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 83,217,251 km

• M1: 109,506 km (0.065 R)
• M2: 1,167,312 km (0.085 R)
• M3: 1,747,004 km (0.118 R)
• M4: 2,382,795 km (0.071 R)
• M5: 2,695,006 km (0.107 R)
• M6: 3,670,384 km (0.056 R)
• M7: 4,010,420 km (0.114 R)
• M8: 4,560,192 km (0.113 R)
• M9: 4,976,523 km (0.101 R)
• M10: 5,252,381 km (0.096 R)
• M11: 6,595,770 km (0.094 R)
• M12: 7,997,951 km (0.113 R)
• M13: 8,571,808 km (0.042 R)
• M14: 8,935,930 km (0.104 R)
• M15: 9,310,223 km (0.113 R)
• M16: 10,384,635 km (0.117 R)
• M17: 15,323,011 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.5

Radius: 12.3

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 4.7 AU - 5.02 AU

Year: 7145 Days

Day: 14.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 83,217,251 km

• M1: 153,039 km (0.088 R)
• M2: 593,305 km (0.072 R)
• M3: 1,053,618 km (0.114 R)
• M4: 1,618,799 km (0.101 R)
• M5: 2,756,191 km (0.074 R)
• M6: 3,416,666 km (0.072 R)
• M7: 4,589,214 km (0.069 R)
• M8: 6,572,283 km (0.064 R)
• M9: 7,594,037 km (0.1 R)
• M10: 8,164,154 km (0.064 R)
• M11: 8,588,563 km (0.096 R)
• M12: 11,933,123 km (0.06 R)
• M13: 12,817,695 km (0.111 R)
• M14: 14,842,054 km (0.073 R)
• M15: 15,540,376 km (0.084 R)
• M16: 16,527,872 km (0.092 R)
• M17: 19,666,286 km (0.069 R)
• M18: 21,057,695 km (0.097 R)
• M19: 25,266,632 km (0.049 R)
• M20: 32,372,082 km (0.088 R)
• M21: 37,590,355 km (0.093 R)
• M22: 39,729,155 km (0.039 R)
• M23: 41,323,420 km (0.074 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 998.9

Radius: 4.5

Gravity: 49.33 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 7.39 AU - 11.23 AU

Year: 18943 Days

Day: 17.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 83,217,251 km

• M1: 55,950 km (0.083 R)
• M2: 279,299 km (0.046 R)
• M3: 1,015,919 km (0.1 R)
• M4: 1,355,357 km (0.025 R)
• M5: 2,392,369 km (0.118 R)
• M6: 2,680,046 km (0.096 R)
• M7: 2,858,367 km (0.04 R)
• M8: 3,500,590 km (0.096 R)
• M9: 4,655,336 km (0.11 R)
• M10: 5,338,400 km (0.106 R)
• M11: 6,217,288 km (0.071 R)
• M12: 6,714,102 km (0.104 R)
• M13: 6,854,126 km (0.11 R)
• M14: 7,140,007 km (0.097 R)
• M15: 7,334,933 km (0.063 R)
• M16: 8,580,335 km (0.09 R)
• M17: 9,484,804 km (0.111 R)
• M18: 9,899,789 km (0.068 R)
• M19: 10,639,401 km (0.111 R)
• M20: 11,952,720 km (0.073 R)
• M21: 15,619,514 km (0.1 R)
• M22: 17,750,685 km (0.085 R)
• M23: 18,289,536 km (0.086 R)
• M24: 18,563,151 km (0.05 R)
• M25: 19,971,615 km (0.055 R)
• M26: 24,955,917 km (0.12 R)
• M27: 25,631,950 km (0.092 R)
• M28: 37,141,262 km (0.076 R)
• M29: 37,286,970 km (0.111 R)
• M30: 38,467,297 km (0.107 R)
• M31: 39,977,488 km (0.114 R)
• M32: 50,767,683 km (0.109 R)
• M33: 53,135,967 km (0.093 R)
• M34: 64,391,262 km (0.098 R)
• M35: 65,448,171 km (0.109 R)
• M36: 66,947,291 km (0.061 R)
• M37: 72,033,918 km (0.072 R)
• M38: 75,955,028 km (0.104 R)
• M39: 77,610,029 km (0.108 R)
• M40: 77,848,488 km (0.107 R)
• M41: 81,976,043 km (0.103 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: 314 - 10,728 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit