🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.6 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34

Radius: 10.6

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.97 AU - 1.43 AU

Year: 862 Days

Day: 12.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 65,923,230 km

• M1: 131,945 km (0.093 R)
• M2: 466,446 km (0.112 R)
• M3: 867,668 km (0.081 R)
• M4: 3,140,209 km (0.075 R)

Asteroid Belt

Center: 2.28 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.7

Radius: 11.8

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 2.99 AU - 3.71 AU

Year: 4022 Days

Day: 8.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 65,923,230 km

• M1: 146,756 km (0.108 R)
• M2: 738,265 km (0.077 R)
• M3: 1,132,605 km (0.108 R)
• M4: 1,620,743 km (0.117 R)
• M5: 2,122,794 km (0.117 R)
• M6: 4,522,792 km (0.12 R)
• M7: 5,312,819 km (0.077 R)
• M8: 5,771,935 km (0.091 R)
• M9: 7,286,613 km (0.076 R)
• M10: 10,123,438 km (0.048 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 594.4

Radius: 14.3

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.98 AU - 4.24 AU

Year: 4500 Days

Day: 7.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,923,230 km

• M1: 178,021 km (0.062 R)
• M2: 890,706 km (0.06 R)
• M3: 1,474,586 km (0.077 R)
• M4: 1,962,574 km (0.106 R)
• M5: 2,723,130 km (0.028 R)
• M6: 4,590,560 km (0.104 R)
• M7: 5,090,666 km (0.083 R)
• M8: 6,350,878 km (0.037 R)
• M9: 7,267,465 km (0.032 R)
• M10: 8,234,615 km (0.112 R)
• M11: 9,762,907 km (0.116 R)
• M12: 11,930,729 km (0.078 R)
• M13: 13,376,144 km (0.105 R)
• M14: 16,963,202 km (0.086 R)
• M15: 17,557,704 km (0.027 R)
• M16: 18,413,404 km (0.066 R)
• M17: 19,879,163 km (0.047 R)
• M18: 22,257,171 km (0.102 R)
• M19: 23,551,492 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.8

Radius: 14.8

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 4.7 AU - 5.18 AU

Year: 7203 Days

Day: 13.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,923,230 km

• M1: 185,950 km (0.079 R)
• M2: 1,538,614 km (0.051 R)
• M3: 2,042,161 km (0.095 R)
• M4: 3,091,739 km (0.072 R)
• M5: 3,760,442 km (0.095 R)
• M6: 4,572,459 km (0.07 R)
• M7: 7,554,094 km (0.077 R)
• M8: 9,040,947 km (0.12 R)
• M9: 10,415,752 km (0.085 R)
• M10: 14,143,880 km (0.061 R)
• M11: 14,940,788 km (0.11 R)
• M12: 15,823,864 km (0.11 R)
• M13: 17,633,400 km (0.099 R)
• M14: 21,522,197 km (0.088 R)
• M15: 24,336,582 km (0.115 R)
• M16: 25,096,090 km (0.116 R)
• M17: 25,559,245 km (0.079 R)
• M18: 26,344,035 km (0.044 R)
• M19: 27,144,833 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.4

Radius: 9.8

Gravity: 9.3 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 4.97 AU - 5.39 AU

Year: 7734 Days

Day: 6.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,923,230 km

• M1: 122,820 km (0.09 R)
• M2: 458,368 km (0.073 R)
• M3: 2,057,420 km (0.087 R)
• M4: 2,917,009 km (0.091 R)
• M5: 3,844,815 km (0.097 R)
• M6: 4,377,084 km (0.097 R)
• M7: 5,330,621 km (0.066 R)
• M8: 6,489,256 km (0.077 R)
• M9: 10,916,605 km (0.077 R)
• M10: 12,430,835 km (0.087 R)
• M11: 16,546,123 km (0.097 R)
• M12: 18,463,968 km (0.064 R)
• M13: 19,362,153 km (0.119 R)
• M14: 21,326,672 km (0.034 R)
• M15: 22,906,127 km (0.081 R)
• M16: 26,860,298 km (0.095 R)
• M17: 29,298,593 km (0.091 R)
• M18: 31,247,554 km (0.088 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 199.9

Radius: 4.2

Gravity: 11.33 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 7.55 AU - 8.53 AU

Year: 14955 Days

Day: 15.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,923,230 km

• M1: 66,421 km (0.078 R)
• M2: 500,405 km (0.115 R)
• M3: 1,253,780 km (0.055 R)
• M4: 1,817,465 km (0.031 R)
• M5: 4,227,486 km (0.077 R)
• M6: 4,587,568 km (0.119 R)
• M7: 6,774,390 km (0.09 R)
• M8: 7,305,911 km (0.11 R)
• M9: 7,581,919 km (0.12 R)
• M10: 9,202,513 km (0.037 R)
• M11: 12,099,775 km (0.103 R)
• M12: 19,986,874 km (0.05 R)
• M13: 25,735,023 km (0.101 R)
• M14: 27,209,310 km (0.055 R)
• M15: 28,062,915 km (0.101 R)
• M16: 28,738,948 km (0.106 R)
• M17: 38,897,690 km (0.109 R)
• M18: 41,205,985 km (0.046 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 357.7

Radius: 8

Gravity: 5.59 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 8.55 AU - 12.45 AU

Year: 22320 Days

Day: 15.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 65,923,230 km

• M1: 99,483 km (0.075 R)
• M2: 1,055,712 km (0.106 R)
• M3: 1,438,832 km (0.063 R)
• M4: 2,508,307 km (0.068 R)
• M5: 2,779,080 km (0.08 R)
• M6: 3,196,159 km (0.095 R)
• M7: 3,654,676 km (0.056 R)
• M8: 3,974,067 km (0.089 R)
• M9: 5,592,716 km (0.099 R)
• M10: 7,562,621 km (0.08 R)
• M11: 9,515,921 km (0.099 R)
• M12: 13,075,751 km (0.036 R)
• M13: 13,964,961 km (0.118 R)
• M14: 23,262,618 km (0.115 R)
• M15: 28,091,638 km (0.075 R)
• M16: 37,060,479 km (0.052 R)
• M17: 41,530,463 km (0.071 R)
• M18: 46,503,246 km (0.071 R)
• M19: 55,472,536 km (0.092 R)
• M20: 57,791,901 km (0.105 R)
• M21: 65,332,532 km (0.12 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 207 - 18,069 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit