🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.58 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 900.4

Radius: 12.7

Gravity: 5.58 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.92 AU - 1.4 AU

Year: 862 Days

Day: 7.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,074,773 km

• M1: 162,762 km (0.09 R)
• M2: 568,771 km (0.084 R)
• M3: 1,121,086 km (0.068 R)
• M4: 1,609,823 km (0.072 R)
• M5: 2,086,442 km (0.098 R)
• M6: 2,516,685 km (0.038 R)
• M7: 2,954,857 km (0.042 R)
• M8: 3,373,133 km (0.109 R)
• M9: 3,800,235 km (0.113 R)
• M10: 4,297,049 km (0.079 R)
• M11: 4,965,153 km (0.101 R)
• M12: 5,990,647 km (0.071 R)
• M13: 6,420,890 km (0.11 R)
• M14: 7,200,146 km (0.083 R)
• M15: 8,144,557 km (0.036 R)
• M16: 8,919,474 km (0.037 R)
• M17: 9,831,123 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.1

Radius: 8.6

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 2.94 AU - 3.16 AU

Year: 3677 Days

Day: 9.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 56,074,773 km

• M1: 106,962 km (0.108 R)
• M2: 404,662 km (0.077 R)
• M3: 720,314 km (0.086 R)
• M4: 1,040,154 km (0.036 R)
• M5: 1,557,314 km (0.055 R)
• M6: 2,066,545 km (0.035 R)
• M7: 2,346,742 km (0.105 R)
• M8: 3,238,943 km (0.094 R)
• M9: 4,341,330 km (0.12 R)
• M10: 5,676,192 km (0.098 R)
• M11: 6,122,592 km (0.077 R)
• M12: 7,760,539 km (0.103 R)
• M13: 8,048,814 km (0.116 R)
• M14: 9,417,186 km (0.112 R)
• M15: 9,856,405 km (0.081 R)
• M16: 10,309,238 km (0.036 R)
• M17: 11,175,410 km (0.043 R)
• M18: 11,835,136 km (0.034 R)
• M19: 12,131,939 km (0.096 R)
• M20: 12,784,484 km (0.05 R)
• M21: 13,142,023 km (0.119 R)
• M22: 13,830,323 km (0.115 R)
• M23: 14,254,732 km (0.111 R)
• M24: 15,278,879 km (0.087 R)
• M25: 19,105,443 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.5

Radius: 14.4

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 4.19 AU - 4.37 AU

Year: 6112 Days

Day: 10.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 56,074,773 km

• M1: 179,218 km (0.106 R)
• M2: 1,051,972 km (0.073 R)
• M3: 1,593,816 km (0.112 R)
• M4: 2,258,928 km (0.1 R)
• M5: 4,507,384 km (0.114 R)
• M6: 6,363,744 km (0.074 R)
• M7: 6,881,502 km (0.08 R)
• M8: 8,053,153 km (0.094 R)
• M9: 8,686,999 km (0.054 R)
• M10: 9,268,785 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 457.6

Radius: 8.2

Gravity: 6.81 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 4.35 AU - 4.47 AU

Year: 6392 Days

Day: 6.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 56,074,773 km

• M1: 102,026 km (0.062 R)
• M2: 365,019 km (0.089 R)
• M3: 718,818 km (0.098 R)
• M4: 1,267,094 km (0.117 R)
• M5: 1,884,484 km (0.091 R)
• M6: 2,145,533 km (0.11 R)
• M7: 2,796,433 km (0.086 R)
• M8: 3,118,667 km (0.088 R)
• M9: 4,286,129 km (0.11 R)
• M10: 4,612,252 km (0.116 R)
• M11: 5,428,907 km (0.025 R)
• M12: 6,964,978 km (0.118 R)
• M13: 8,457,067 km (0.105 R)
• M14: 18,209,950 km (0.105 R)
• M15: 18,471,148 km (0.115 R)
• M16: 19,883,502 km (0.112 R)
• M17: 23,150,121 km (0.118 R)
• M18: 24,630,841 km (0.036 R)
• M19: 26,673,899 km (0.068 R)
• M20: 27,952,512 km (0.119 R)
• M21: 30,173,591 km (0.081 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 471.5

Radius: 4.9

Gravity: 19.64 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 6.11 AU - 6.27 AU

Year: 10630 Days

Day: 18.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 56,074,773 km

• M1: 62,382 km (0.096 R)
• M2: 244,593 km (0.072 R)
• M3: 632,201 km (0.112 R)
• M4: 946,805 km (0.102 R)
• M5: 1,168,210 km (0.114 R)
• M6: 1,558,211 km (0.089 R)
• M7: 3,184,639 km (0.061 R)
• M8: 3,634,630 km (0.034 R)
• M9: 4,544,335 km (0.048 R)
• M10: 6,322,305 km (0.112 R)
• M11: 8,000,644 km (0.089 R)
• M12: 9,194,136 km (0.081 R)
• M13: 10,808,297 km (0.062 R)
• M14: 11,226,273 km (0.117 R)
• M15: 14,086,584 km (0.118 R)
• M16: 14,711,754 km (0.12 R)
• M17: 14,966,818 km (0.111 R)
• M18: 24,779,541 km (0.053 R)
• M19: 28,158,658 km (0.068 R)
• M20: 29,551,713 km (0.116 R)
• M21: 32,259,434 km (0.096 R)
• M22: 35,128,123 km (0.094 R)
• M23: 36,043,812 km (0.096 R)
• M24: 38,282,245 km (0.067 R)
• M25: 43,033,922 km (0.112 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 253.1

Radius: 6.6

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 5.99 AU - 8.39 AU

Year: 13308 Days

Day: 19.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 56,074,773 km

• M1: 82,129 km (0.092 R)
• M2: 293,361 km (0.094 R)
• M3: 512,373 km (0.064 R)
• M4: 731,085 km (0.118 R)
• M5: 964,757 km (0.047 R)
• M6: 1,214,735 km (0.109 R)
• M7: 1,685,818 km (0.099 R)
• M8: 2,068,639 km (0.079 R)
• M9: 3,071,992 km (0.088 R)
• M10: 8,269,471 km (0.073 R)
• M11: 8,568,517 km (0.089 R)
• M12: 8,963,456 km (0.114 R)
• M13: 9,416,588 km (0.091 R)
• M14: 9,932,401 km (0.12 R)
• M15: 11,860,119 km (0.052 R)
• M16: 15,454,806 km (0.119 R)
• M17: 16,572,901 km (0.069 R)
• M18: 17,956,083 km (0.115 R)
• M19: 19,116,663 km (0.088 R)
• M20: 22,072,119 km (0.107 R)
• M21: 23,318,119 km (0.088 R)
• M22: 24,261,184 km (0.065 R)
• M23: 24,786,123 km (0.107 R)
• M24: 26,683,323 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 575

Radius: 5.9

Gravity: 16.52 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 6.09 AU - 8.65 AU

Year: 13811 Days

Day: 22.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 56,074,773 km

• M1: 73,453 km (0.085 R)
• M2: 373,546 km (0.114 R)
• M3: 570,117 km (0.102 R)
• M4: 790,924 km (0.109 R)
• M5: 1,012,927 km (0.077 R)
• M6: 1,225,356 km (0.12 R)
• M7: 1,525,749 km (0.119 R)
• M8: 2,686,179 km (0.084 R)
• M9: 5,595,708 km (0.118 R)
• M10: 7,285,715 km (0.034 R)
• M11: 9,239,015 km (0.12 R)
• M12: 12,909,997 km (0.056 R)
• M13: 15,452,712 km (0.069 R)
• M14: 18,231,493 km (0.098 R)
• M15: 24,270,459 km (0.055 R)
• M16: 24,948,886 km (0.032 R)
• M17: 26,040,352 km (0.106 R)
• M18: 29,505,338 km (0.034 R)
• M19: 30,166,710 km (0.109 R)
• M20: 31,177,243 km (0.036 R)
• M21: 31,978,639 km (0.114 R)
• M22: 35,445,420 km (0.105 R)
• M23: 37,077,832 km (0.073 R)
• M24: 41,582,523 km (0.052 R)
• M25: 42,973,784 km (0.1 R)
• M26: 44,395,861 km (0.114 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 184 - 12,464 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit