🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.7

Radius: 8.2

Gravity: 9.26 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.49 AU - 0.71 AU

Year: 327 Days

Day: 13.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,759,356 km

• M1: 102,026 km (0.104 R)
• M2: 371,152 km (0.111 R)
• M3: 721,511 km (0.082 R)
• M4: 1,241,064 km (0.1 R)
• M5: 1,886,130 km (0.075 R)
• M6: 2,322,357 km (0.095 R)
• M7: 2,597,019 km (0.087 R)
• M8: 3,128,091 km (0.046 R)
• M9: 3,486,827 km (0.099 R)
• M10: 4,057,842 km (0.041 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 800.2

Radius: 11.5

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.56 AU - 0.7 AU

Year: 351 Days

Day: 9 Hours

Environment

Temp: -146 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,759,356 km

• M1: 143,016 km (0.117 R)
• M2: 794,365 km (0.062 R)
• M3: 1,193,492 km (0.095 R)
• M4: 1,558,211 km (0.114 R)
• M5: 2,070,734 km (0.112 R)
• M6: 2,588,492 km (0.102 R)
• M7: 3,416,217 km (0.043 R)
• M8: 3,911,236 km (0.093 R)
• M9: 4,794,462 km (0.106 R)
• M10: 5,213,785 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.2

Radius: 10.7

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.52 AU - 0.86 AU

Year: 403 Days

Day: 5.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,759,356 km

• M1: 133,591 km (0.073 R)
• M2: 477,367 km (0.088 R)
• M3: 855,849 km (0.09 R)
• M4: 1,666,071 km (0.066 R)
• M5: 2,007,903 km (0.097 R)
• M6: 2,658,354 km (0.089 R)
• M7: 3,022,924 km (0.117 R)
• M8: 3,791,708 km (0.112 R)
• M9: 4,474,472 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.4

Radius: 8.8

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.88 AU - 0.96 AU

Year: 620 Days

Day: 7.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,759,356 km

• M1: 109,506 km (0.085 R)
• M2: 440,416 km (0.066 R)
• M3: 977,323 km (0.092 R)
• M4: 1,418,786 km (0.096 R)
• M5: 2,178,295 km (0.069 R)
• M6: 2,757,238 km (0.062 R)
• M7: 4,040,339 km (0.086 R)
• M8: 4,550,618 km (0.104 R)
• M9: 4,914,140 km (0.101 R)
• M10: 5,838,655 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 218.3

Radius: 11.8

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 3.34 AU - 3.46 AU

Year: 4407 Days

Day: 14.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,759,356 km

• M1: 147,354 km (0.12 R)
• M2: 680,521 km (0.053 R)
• M3: 1,254,229 km (0.11 R)
• M4: 2,125,038 km (0.108 R)
• M5: 3,142,154 km (0.119 R)
• M6: 3,649,141 km (0.085 R)
• M7: 6,462,478 km (0.09 R)
• M8: 7,801,230 km (0.032 R)
• M9: 8,503,442 km (0.082 R)
• M10: 9,457,727 km (0.074 R)
• M11: 9,997,476 km (0.093 R)
• M12: 10,942,935 km (0.063 R)
• M13: 11,457,551 km (0.096 R)
• M14: 12,029,763 km (0.105 R)
• M15: 12,836,844 km (0.099 R)
• M16: 13,409,504 km (0.071 R)
• M17: 14,940,190 km (0.094 R)
• M18: 18,401,286 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.2

Radius: 14.7

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 3.67 AU - 4.11 AU

Year: 5393 Days

Day: 7 Hours

Environment

Temp: -209 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,759,356 km

• M1: 183,108 km (0.101 R)
• M2: 742,005 km (0.046 R)
• M3: 2,164,681 km (0.032 R)
• M4: 5,588,976 km (0.109 R)
• M5: 7,074,633 km (0.093 R)
• M6: 8,592,303 km (0.093 R)
• M7: 12,870,653 km (0.114 R)
• M8: 18,098,650 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 338.4

Radius: 5.4

Gravity: 11.6 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 5 AU - 6.58 AU

Year: 9793 Days

Day: 21.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 57,759,356 km

• M1: 79,436 km (0.034 R)
• M2: 288,275 km (0.061 R)
• M3: 636,090 km (0.067 R)
• M4: 967,449 km (0.086 R)
• M5: 1,764,357 km (0.085 R)
• M6: 2,162,736 km (0.118 R)
• M7: 2,545,109 km (0.118 R)
• M8: 2,771,899 km (0.074 R)
• M9: 3,421,004 km (0.087 R)
• M10: 4,618,685 km (0.12 R)
• M11: 5,526,594 km (0.118 R)
• M12: 5,715,237 km (0.099 R)
• M13: 7,121,457 km (0.082 R)
• M14: 8,409,345 km (0.082 R)
• M15: 9,393,998 km (0.107 R)
• M16: 9,937,188 km (0.118 R)
• M17: 10,693,705 km (0.102 R)
• M18: 11,336,078 km (0.05 R)
• M19: 11,847,553 km (0.113 R)
• M20: 19,816,931 km (0.073 R)
• M21: 20,483,389 km (0.045 R)
• M22: 21,088,363 km (0.119 R)
• M23: 23,875,371 km (0.04 R)
• M24: 24,460,748 km (0.116 R)
• M25: 26,097,947 km (0.104 R)
• M26: 28,083,260 km (0.055 R)
• M27: 28,735,507 km (0.117 R)
• M28: 29,493,220 km (0.096 R)
• M29: 30,167,009 km (0.096 R)
• M30: 30,556,711 km (0.103 R)
• M31: 31,246,657 km (0.104 R)
• M32: 33,378,726 km (0.117 R)
• M33: 34,005,242 km (0.078 R)
• M34: 34,215,875 km (0.11 R)
• M35: 34,639,537 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 310.5

Radius: 4.8

Gravity: 13.48 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 7.84 AU - 10.58 AU

Year: 19647 Days

Day: 19.2 Hours

Environment

Temp: -236 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 57,759,356 km

• M1: 59,690 km (0.094 R)
• M2: 250,576 km (0.078 R)
• M3: 699,520 km (0.111 R)
• M4: 1,133,503 km (0.069 R)
• M5: 1,481,468 km (0.081 R)
• M6: 1,897,649 km (0.098 R)
• M7: 2,512,496 km (0.109 R)
• M8: 3,078,126 km (0.097 R)
• M9: 3,697,311 km (0.103 R)
• M10: 4,426,751 km (0.063 R)
• M11: 6,088,633 km (0.062 R)
• M12: 6,243,467 km (0.108 R)
• M13: 8,033,106 km (0.07 R)
• M14: 8,796,504 km (0.098 R)
• M15: 13,744,753 km (0.104 R)
• M16: 16,497,803 km (0.119 R)
• M17: 18,042,700 km (0.04 R)
• M18: 19,179,793 km (0.082 R)
• M19: 19,346,146 km (0.108 R)
• M20: 19,681,545 km (0.063 R)
• M21: 21,150,446 km (0.072 R)
• M22: 22,138,839 km (0.115 R)
• M23: 22,783,756 km (0.082 R)
• M24: 23,726,521 km (0.042 R)
• M25: 31,525,507 km (0.092 R)
• M26: 31,873,472 km (0.043 R)
• M27: 32,458,998 km (0.095 R)
• M28: 34,872,909 km (0.047 R)
• M29: 42,544,737 km (0.064 R)
• M30: 52,395,607 km (0.064 R)
• M31: 55,706,956 km (0.067 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 469 - 11,027 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit