🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.3

Radius: 8.3

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.53 AU - 0.61 AU

Year: 292 Days

Day: 5.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 49,112,457 km

• M1: 103,522 km (0.069 R)
• M2: 415,134 km (0.109 R)
• M3: 735,423 km (0.114 R)
• M4: 1,084,136 km (0.056 R)
• M5: 1,474,885 km (0.049 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.7

Radius: 14.2

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.54 AU - 2.24 AU

Year: 1762 Days

Day: 11.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 49,112,457 km

• M1: 177,423 km (0.093 R)
• M2: 730,337 km (0.044 R)
• M3: 1,370,167 km (0.105 R)
• M4: 1,853,518 km (0.082 R)
• M5: 2,426,477 km (0.112 R)
• M6: 3,010,807 km (0.09 R)
• M7: 4,252,469 km (0.094 R)
• M8: 5,152,151 km (0.098 R)
• M9: 6,225,067 km (0.077 R)
• M10: 7,442,045 km (0.098 R)
• M11: 8,812,212 km (0.112 R)
• M12: 9,261,006 km (0.094 R)
• M13: 9,792,677 km (0.098 R)
• M14: 10,917,353 km (0.111 R)
• M15: 11,701,097 km (0.074 R)
• M16: 12,482,147 km (0.099 R)
• M17: 13,131,851 km (0.066 R)
• M18: 14,587,438 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521.8

Radius: 10.3

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.08 AU - 2.14 AU

Year: 2079 Days

Day: 13.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,112,457 km

• M1: 128,654 km (0.118 R)
• M2: 832,961 km (0.109 R)
• M3: 1,272,928 km (0.074 R)
• M4: 1,975,739 km (0.091 R)
• M5: 4,527,729 km (0.072 R)
• M6: 4,855,049 km (0.078 R)
• M7: 5,375,799 km (0.12 R)
• M8: 6,632,272 km (0.082 R)
• M9: 7,582,069 km (0.093 R)
• M10: 8,015,903 km (0.097 R)
• M11: 8,965,251 km (0.09 R)
• M12: 10,403,784 km (0.062 R)
• M13: 12,302,779 km (0.048 R)
• M14: 14,954,402 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713.2

Radius: 10.4

Gravity: 6.59 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 2.59 AU - 3.01 AU

Year: 3178 Days

Day: 7.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 49,112,457 km

• M1: 129,851 km (0.111 R)
• M2: 498,011 km (0.118 R)
• M3: 859,589 km (0.09 R)
• M4: 1,278,015 km (0.103 R)
• M5: 1,880,595 km (0.026 R)
• M6: 2,449,815 km (0.11 R)
• M7: 4,361,227 km (0.103 R)
• M8: 5,647,469 km (0.115 R)
• M9: 7,615,728 km (0.054 R)
• M10: 9,430,500 km (0.08 R)
• M11: 11,219,840 km (0.083 R)
• M12: 12,577,291 km (0.074 R)
• M13: 14,139,542 km (0.104 R)
• M14: 14,637,404 km (0.094 R)
• M15: 15,987,076 km (0.076 R)
• M16: 16,582,326 km (0.118 R)
• M17: 17,417,830 km (0.081 R)
• M18: 18,575,119 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.1

Radius: 10.1

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 3.37 AU - 5.31 AU

Year: 6132 Days

Day: 12.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,112,457 km

• M1: 129,552 km (0.086 R)
• M2: 444,754 km (0.06 R)
• M3: 1,504,356 km (0.095 R)
• M4: 2,511,150 km (0.097 R)
• M5: 2,904,443 km (0.075 R)
• M6: 3,302,523 km (0.12 R)
• M7: 3,896,725 km (0.111 R)
• M8: 4,651,895 km (0.036 R)
• M9: 5,869,173 km (0.098 R)
• M10: 6,225,216 km (0.057 R)
• M11: 7,475,406 km (0.066 R)
• M12: 11,238,989 km (0.093 R)
• M13: 17,584,781 km (0.107 R)
• M14: 19,150,023 km (0.081 R)
• M15: 20,367,900 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 965.3

Radius: 8.4

Gravity: 13.68 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 4.16 AU - 5.7 AU

Year: 7424 Days

Day: 11.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 49,112,457 km

• M1: 104,419 km (0.105 R)
• M2: 369,507 km (0.038 R)
• M3: 674,986 km (0.09 R)
• M4: 1,121,984 km (0.095 R)
• M5: 1,452,446 km (0.113 R)
• M6: 1,925,325 km (0.109 R)
• M7: 2,313,082 km (0.118 R)
• M8: 3,952,077 km (0.081 R)
• M9: 5,119,389 km (0.073 R)
• M10: 6,038,967 km (0.101 R)
• M11: 6,723,078 km (0.085 R)
• M12: 8,245,087 km (0.093 R)
• M13: 10,733,647 km (0.087 R)
• M14: 11,200,991 km (0.04 R)
• M15: 13,744,005 km (0.104 R)
• M16: 14,357,356 km (0.069 R)
• M17: 16,172,128 km (0.07 R)
• M18: 17,204,802 km (0.114 R)
• M19: 23,379,006 km (0.067 R)
• M20: 25,057,643 km (0.102 R)
• M21: 25,695,828 km (0.069 R)
• M22: 32,471,115 km (0.117 R)
• M23: 34,782,103 km (0.108 R)
• M24: 35,234,487 km (0.1 R)
• M25: 35,576,318 km (0.077 R)
• M26: 39,361,145 km (0.109 R)
• M27: 40,347,593 km (0.046 R)
• M28: 41,858,083 km (0.084 R)
• M29: 44,062,108 km (0.056 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.5

Radius: 12.3

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 4.32 AU - 6.08 AU

Year: 8043 Days

Day: 14.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 49,112,457 km

• M1: 193,879 km (0.112 R)
• M2: 624,272 km (0.109 R)
• M3: 1,388,268 km (0.06 R)
• M4: 1,819,409 km (0.063 R)
• M5: 2,674,361 km (0.039 R)
• M6: 3,163,097 km (0.072 R)
• M7: 4,665,509 km (0.117 R)
• M8: 7,958,607 km (0.109 R)
• M9: 8,892,696 km (0.097 R)
• M10: 9,540,305 km (0.092 R)
• M11: 15,352,481 km (0.098 R)
• M12: 24,566,962 km (0.072 R)
• M13: 29,365,912 km (0.105 R)
• M14: 30,899,739 km (0.12 R)
• M15: 32,688,481 km (0.095 R)
• M16: 33,299,738 km (0.077 R)
• M17: 35,392,612 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 167.6

Radius: 4.7

Gravity: 7.59 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 9.09 AU - 10.61 AU

Year: 20967 Days

Day: 20.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 49,112,457 km

• M1: 73,901 km (0.105 R)
• M2: 270,922 km (0.114 R)
• M3: 512,672 km (0.1 R)
• M4: 891,155 km (0.052 R)
• M5: 1,193,941 km (0.116 R)
• M6: 1,821,354 km (0.109 R)
• M7: 3,390,037 km (0.101 R)
• M8: 3,744,883 km (0.076 R)
• M9: 5,864,985 km (0.048 R)
• M10: 7,486,177 km (0.118 R)
• M11: 7,912,082 km (0.077 R)
• M12: 8,264,385 km (0.071 R)
• M13: 11,192,763 km (0.114 R)
• M14: 11,636,620 km (0.081 R)
• M15: 14,680,338 km (0.065 R)
• M16: 19,141,347 km (0.117 R)
• M17: 21,507,087 km (0.079 R)
• M18: 25,647,957 km (0.093 R)
• M19: 30,934,147 km (0.049 R)
• M20: 31,917,155 km (0.105 R)
• M21: 42,917,984 km (0.082 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 381 - 12,597 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit