🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.46

Radius: 1.16

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.47 AU - 0.67 AU

Year: 282 Days

Day: 37.1 Hours

Environment

Temp: -134 °C

Axial Tilt: 7.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 626.6

Radius: 9.5

Gravity: 6.94 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.71 AU - 1.01 AU

Year: 523 Days

Day: 5.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,125,816 km

• M1: 118,182 km (0.037 R)
• M2: 449,841 km (0.089 R)
• M3: 764,894 km (0.087 R)
• M4: 1,091,316 km (0.1 R)
• M5: 1,611,917 km (0.104 R)
• M6: 2,172,311 km (0.061 R)
• M7: 2,594,027 km (0.077 R)
• M8: 3,514,503 km (0.089 R)
• M9: 4,154,632 km (0.097 R)
• M10: 4,503,046 km (0.116 R)
• M11: 4,855,049 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.2

Radius: 8.1

Gravity: 15.15 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 1.04 AU - 1.64 AU

Year: 1018 Days

Day: 5.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,125,816 km

• M1: 101,427 km (0.11 R)
• M2: 590,762 km (0.093 R)
• M3: 1,389,615 km (0.076 R)
• M4: 1,647,372 km (0.115 R)
• M5: 2,284,060 km (0.028 R)
• M6: 4,551,515 km (0.114 R)
• M7: 5,330,771 km (0.093 R)
• M8: 8,909,451 km (0.099 R)
• M9: 9,564,689 km (0.105 R)
• M10: 10,771,495 km (0.101 R)
• M11: 11,037,929 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.2

Radius: 9.4

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 2.92 AU - 4.7 AU

Year: 4879 Days

Day: 8.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 56,125,816 km

• M1: 147,504 km (0.098 R)
• M2: 686,205 km (0.106 R)
• M3: 1,240,466 km (0.118 R)
• M4: 1,547,740 km (0.08 R)
• M5: 3,024,869 km (0.072 R)
• M6: 3,658,566 km (0.035 R)
• M7: 4,208,487 km (0.079 R)
• M8: 4,731,332 km (0.111 R)
• M9: 5,167,559 km (0.099 R)
• M10: 6,314,975 km (0.093 R)
• M11: 8,021,288 km (0.091 R)
• M12: 8,462,004 km (0.11 R)
• M13: 11,380,508 km (0.091 R)
• M14: 14,009,691 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91

Radius: 11.3

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 3.82 AU - 4.56 AU

Year: 5626 Days

Day: 10.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 56,125,816 km

• M1: 143,315 km (0.038 R)
• M2: 560,543 km (0.114 R)
• M3: 1,313,320 km (0.106 R)
• M4: 1,749,397 km (0.062 R)
• M5: 3,398,864 km (0.093 R)
• M6: 4,514,116 km (0.094 R)
• M7: 8,227,883 km (0.078 R)
• M8: 11,597,126 km (0.077 R)
• M9: 16,226,582 km (0.064 R)
• M10: 16,668,793 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.3

Radius: 11

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 4.04 AU - 5.3 AU

Year: 6620 Days

Day: 12.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,125,816 km

• M1: 145,559 km (0.076 R)
• M2: 505,641 km (0.076 R)
• M3: 1,573,470 km (0.095 R)
• M4: 3,938,762 km (0.114 R)
• M5: 5,797,665 km (0.101 R)
• M6: 7,148,983 km (0.11 R)
• M7: 12,838,938 km (0.108 R)
• M8: 13,362,680 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66.6

Radius: 12

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 4.49 AU - 5.09 AU

Year: 6877 Days

Day: 7.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,125,816 km

• M1: 149,747 km (0.104 R)
• M2: 636,988 km (0.114 R)
• M3: 1,296,864 km (0.097 R)
• M4: 1,690,157 km (0.085 R)
• M5: 2,091,378 km (0.117 R)
• M6: 2,829,793 km (0.06 R)
• M7: 3,789,613 km (0.07 R)
• M8: 5,478,424 km (0.091 R)
• M9: 6,476,690 km (0.093 R)
• M10: 7,359,766 km (0.077 R)
• M11: 9,196,230 km (0.106 R)
• M12: 12,476,762 km (0.085 R)
• M13: 13,491,783 km (0.109 R)
• M14: 14,976,392 km (0.09 R)
• M15: 15,590,043 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 443.7

Radius: 8

Gravity: 6.93 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 7.53 AU - 9.11 AU

Year: 15743 Days

Day: 17 Hours

Environment

Temp: -235 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 56,125,816 km

• M1: 125,064 km (0.099 R)
• M2: 431,739 km (0.108 R)
• M3: 754,871 km (0.103 R)
• M4: 1,039,406 km (0.069 R)
• M5: 1,329,327 km (0.081 R)
• M6: 2,224,670 km (0.116 R)
• M7: 2,846,399 km (0.106 R)
• M8: 3,793,802 km (0.107 R)
• M9: 7,229,616 km (0.078 R)
• M10: 8,346,514 km (0.109 R)
• M11: 8,872,650 km (0.119 R)
• M12: 9,522,952 km (0.044 R)
• M13: 9,781,307 km (0.101 R)
• M14: 10,044,450 km (0.096 R)
• M15: 10,806,352 km (0.067 R)
• M16: 12,322,526 km (0.083 R)
• M17: 12,753,966 km (0.088 R)
• M18: 13,646,916 km (0.068 R)
• M19: 16,501,543 km (0.061 R)
• M20: 16,950,187 km (0.093 R)
• M21: 17,253,721 km (0.115 R)
• M22: 18,745,810 km (0.098 R)
• M23: 19,898,761 km (0.112 R)
• M24: 21,984,305 km (0.071 R)
• M25: 22,254,927 km (0.075 R)
• M26: 22,894,907 km (0.067 R)
• M27: 24,596,732 km (0.092 R)
• M28: 25,379,578 km (0.106 R)
• M29: 26,584,738 km (0.079 R)
• M30: 28,250,511 km (0.092 R)
• M31: 29,874,246 km (0.112 R)
• M32: 37,248,075 km (0.098 R)
• M33: 38,671,648 km (0.083 R)
• M34: 38,934,342 km (0.073 R)
• M35: 41,627,253 km (0.065 R)
• M36: 43,019,112 km (0.098 R)
• M37: 44,585,701 km (0.101 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 153 - 16,719 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit