🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.9

Radius: 14.7

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.43 AU - 0.65 AU

Year: 269 Days

Day: 6.8 Hours

Environment

Temp: -148 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 64,040,200 km

• M1: 182,809 km (0.09 R)
• M2: 777,759 km (0.09 R)
• M3: 1,238,670 km (0.104 R)
• M4: 1,717,384 km (0.104 R)
• M5: 2,352,726 km (0.085 R)
• M6: 2,969,817 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113.2

Radius: 11.6

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.53 AU - 0.73 AU

Year: 339 Days

Day: 13.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 64,040,200 km

• M1: 144,212 km (0.1 R)
• M2: 530,923 km (0.082 R)
• M3: 965,505 km (0.105 R)
• M4: 1,355,357 km (0.099 R)
• M5: 1,753,885 km (0.042 R)
• M6: 2,520,575 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.5

Radius: 10.2

Gravity: 8.79 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.71 AU - 0.75 AU

Year: 423 Days

Day: 6.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 64,040,200 km

• M1: 126,859 km (0.067 R)
• M2: 463,454 km (0.092 R)
• M3: 959,970 km (0.09 R)
• M4: 1,900,043 km (0.073 R)
• M5: 2,299,768 km (0.101 R)
• M6: 4,149,845 km (0.071 R)
• M7: 5,736,181 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 716.1

Radius: 12.5

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1 AU - 1.44 AU

Year: 914 Days

Day: 5.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,040,200 km

• M1: 155,582 km (0.096 R)
• M2: 586,424 km (0.084 R)
• M3: 1,070,522 km (0.117 R)
• M4: 1,754,334 km (0.118 R)
• M5: 2,561,714 km (0.118 R)
• M6: 3,064,363 km (0.079 R)
• M7: 4,837,098 km (0.104 R)
• M8: 6,530,994 km (0.076 R)
• M9: 8,913,041 km (0.084 R)
• M10: 9,696,934 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.2

Radius: 12.4

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.07 AU - 1.55 AU

Year: 1017 Days

Day: 9 Hours

Environment

Temp: -180 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 64,040,200 km

• M1: 154,385 km (0.104 R)
• M2: 686,654 km (0.077 R)
• M3: 1,242,410 km (0.074 R)
• M4: 1,932,954 km (0.115 R)
• M5: 2,372,622 km (0.094 R)
• M6: 2,964,431 km (0.105 R)
• M7: 3,416,965 km (0.116 R)
• M8: 4,644,715 km (0.039 R)
• M9: 5,077,801 km (0.063 R)
• M10: 6,167,771 km (0.091 R)
• M11: 7,133,574 km (0.111 R)
• M12: 7,594,186 km (0.067 R)
• M13: 8,833,156 km (0.044 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.2

Radius: 14.4

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.79 AU - 2.93 AU

Year: 2459 Days

Day: 11.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 64,040,200 km

• M1: 179,069 km (0.105 R)
• M2: 668,104 km (0.069 R)
• M3: 1,185,713 km (0.041 R)
• M4: 1,728,753 km (0.118 R)
• M5: 2,231,701 km (0.091 R)
• M6: 2,687,227 km (0.074 R)
• M7: 3,205,733 km (0.101 R)
• M8: 4,071,904 km (0.073 R)
• M9: 4,739,560 km (0.105 R)
• M10: 6,141,441 km (0.086 R)
• M11: 6,828,694 km (0.117 R)
• M12: 7,392,080 km (0.091 R)
• M13: 8,421,014 km (0.092 R)
• M14: 9,927,315 km (0.049 R)
• M15: 10,504,014 km (0.109 R)
• M16: 11,103,154 km (0.077 R)
• M17: 13,209,642 km (0.026 R)
• M18: 13,908,264 km (0.095 R)
• M19: 14,539,716 km (0.086 R)
• M20: 15,427,280 km (0.101 R)
• M21: 16,902,016 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 988

Radius: 4.4

Gravity: 51.03 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 6.21 AU - 8.01 AU

Year: 12859 Days

Day: 20.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 64,040,200 km

• M1: 54,753 km (0.104 R)
• M2: 369,058 km (0.103 R)
• M3: 673,041 km (0.114 R)
• M4: 833,260 km (0.078 R)
• M5: 1,078,750 km (0.109 R)
• M6: 1,782,309 km (0.095 R)
• M7: 2,131,770 km (0.088 R)
• M8: 4,400,421 km (0.066 R)
• M9: 4,595,048 km (0.099 R)
• M10: 6,488,060 km (0.113 R)
• M11: 6,955,553 km (0.111 R)
• M12: 7,445,187 km (0.112 R)
• M13: 8,693,132 km (0.092 R)
• M14: 9,260,856 km (0.094 R)
• M15: 9,689,005 km (0.036 R)
• M16: 10,412,610 km (0.102 R)
• M17: 12,668,696 km (0.12 R)
• M18: 15,304,311 km (0.091 R)
• M19: 18,035,370 km (0.026 R)
• M20: 20,173,871 km (0.066 R)
• M21: 20,351,893 km (0.111 R)
• M22: 21,166,004 km (0.03 R)
• M23: 22,095,905 km (0.045 R)
• M24: 22,666,770 km (0.11 R)
• M25: 25,461,109 km (0.082 R)
• M26: 28,476,703 km (0.104 R)
• M27: 31,602,101 km (0.054 R)
• M28: 33,557,944 km (0.06 R)
• M29: 42,189,292 km (0.117 R)
• M30: 42,334,851 km (0.05 R)
• M31: 53,030,650 km (0.11 R)
• M32: 61,577,027 km (0.096 R)
• M33: 61,951,769 km (0.06 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: 530 - 12,073 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit