🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.3

Radius: 8.9

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.7 AU - 1.04 AU

Year: 541 Days

Day: 14.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,776,243 km

• M1: 110,702 km (0.075 R)
• M2: 487,390 km (0.092 R)
• M3: 778,956 km (0.063 R)
• M4: 1,108,221 km (0.116 R)
• M5: 1,490,144 km (0.106 R)
• M6: 2,050,388 km (0.058 R)
• M7: 2,361,253 km (0.077 R)
• M8: 2,765,765 km (0.098 R)
• M9: 3,274,099 km (0.111 R)
• M10: 3,650,786 km (0.105 R)
• M11: 4,207,440 km (0.046 R)
• M12: 5,099,492 km (0.112 R)
• M13: 6,041,061 km (0.048 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.4

Radius: 12.4

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.1 AU - 1.12 AU

Year: 780 Days

Day: 9.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,776,243 km

• M1: 154,235 km (0.104 R)
• M2: 544,536 km (0.104 R)
• M3: 1,027,438 km (0.108 R)
• M4: 1,413,999 km (0.118 R)
• M5: 1,800,560 km (0.097 R)
• M6: 2,634,419 km (0.09 R)
• M7: 3,029,656 km (0.112 R)
• M8: 3,761,190 km (0.077 R)
• M9: 4,363,471 km (0.12 R)
• M10: 4,845,325 km (0.069 R)
• M11: 5,411,404 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 990.5

Radius: 9.7

Gravity: 10.53 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.15 AU - 1.41 AU

Year: 966 Days

Day: 10.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,776,243 km

• M1: 120,576 km (0.089 R)
• M2: 556,504 km (0.094 R)
• M3: 864,975 km (0.093 R)
• M4: 1,689,708 km (0.04 R)
• M5: 2,200,136 km (0.1 R)
• M6: 2,546,754 km (0.093 R)
• M7: 3,380,762 km (0.105 R)
• M8: 3,877,577 km (0.108 R)
• M9: 4,494,070 km (0.094 R)
• M10: 4,863,876 km (0.087 R)
• M11: 5,457,031 km (0.051 R)
• M12: 5,835,514 km (0.065 R)
• M13: 6,276,678 km (0.117 R)
• M14: 6,621,950 km (0.114 R)
• M15: 7,004,322 km (0.102 R)
• M16: 8,404,857 km (0.095 R)
• M17: 8,796,654 km (0.067 R)
• M18: 9,891,112 km (0.096 R)
• M19: 10,264,807 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889

Radius: 13.1

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.6 AU - 1.68 AU

Year: 1401 Days

Day: 12.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 54,776,243 km

• M1: 163,510 km (0.12 R)
• M2: 705,952 km (0.041 R)
• M3: 1,310,178 km (0.066 R)
• M4: 1,733,391 km (0.078 R)
• M5: 2,716,997 km (0.056 R)
• M6: 3,581,971 km (0.08 R)
• M7: 4,133,539 km (0.054 R)
• M8: 4,584,128 km (0.109 R)
• M9: 5,025,890 km (0.071 R)
• M10: 5,452,244 km (0.093 R)
• M11: 5,879,795 km (0.099 R)
• M12: 6,329,636 km (0.059 R)
• M13: 7,406,591 km (0.103 R)
• M14: 8,190,035 km (0.066 R)
• M15: 9,277,761 km (0.059 R)
• M16: 9,791,031 km (0.12 R)
• M17: 10,735,293 km (0.113 R)
• M18: 11,850,395 km (0.093 R)
• M19: 12,493,965 km (0.112 R)
• M20: 13,401,725 km (0.064 R)
• M21: 13,933,845 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 592.4

Radius: 13.4

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.94 AU - 2.34 AU

Year: 2088 Days

Day: 14.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,776,243 km

• M1: 167,998 km (0.029 R)
• M2: 1,558,660 km (0.118 R)
• M3: 2,615,719 km (0.117 R)
• M4: 4,375,139 km (0.097 R)
• M5: 4,907,409 km (0.043 R)
• M6: 5,715,835 km (0.089 R)
• M7: 6,252,593 km (0.089 R)
• M8: 6,690,166 km (0.079 R)
• M9: 7,175,911 km (0.106 R)
• M10: 8,463,350 km (0.092 R)
• M11: 10,894,465 km (0.039 R)
• M12: 12,390,294 km (0.078 R)
• M13: 13,631,059 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 674.2

Radius: 8.5

Gravity: 9.33 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.15 AU - 2.49 AU

Year: 2356 Days

Day: 13.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 177.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 54,776,243 km

• M1: 106,514 km (0.109 R)
• M2: 395,088 km (0.061 R)
• M3: 874,400 km (0.067 R)
• M4: 1,416,991 km (0.038 R)
• M5: 1,699,282 km (0.109 R)
• M6: 2,798,079 km (0.042 R)
• M7: 3,561,776 km (0.11 R)
• M8: 4,051,110 km (0.112 R)
• M9: 5,003,750 km (0.051 R)
• M10: 6,124,537 km (0.058 R)
• M11: 6,496,736 km (0.057 R)
• M12: 8,297,745 km (0.099 R)
• M13: 8,887,310 km (0.094 R)
• M14: 9,539,707 km (0.101 R)
• M15: 10,446,270 km (0.047 R)
• M16: 10,748,158 km (0.101 R)
• M17: 11,251,106 km (0.081 R)
• M18: 11,688,979 km (0.105 R)
• M19: 12,514,161 km (0.063 R)
• M20: 13,027,431 km (0.11 R)
• M21: 13,778,712 km (0.034 R)
• M22: 15,610,987 km (0.12 R)
• M23: 18,082,044 km (0.056 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784.9

Radius: 10.2

Gravity: 7.54 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 4.12 AU - 6.22 AU

Year: 7839 Days

Day: 9.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 54,776,243 km

• M1: 130,001 km (0.103 R)
• M2: 477,217 km (0.045 R)
• M3: 1,142,479 km (0.097 R)
• M4: 1,572,872 km (0.053 R)
• M5: 2,930,323 km (0.1 R)
• M6: 3,848,256 km (0.093 R)
• M7: 4,265,185 km (0.079 R)
• M8: 6,821,663 km (0.12 R)
• M9: 8,947,897 km (0.095 R)
• M10: 9,682,722 km (0.087 R)
• M11: 10,758,032 km (0.108 R)
• M12: 11,272,349 km (0.08 R)
• M13: 11,802,973 km (0.115 R)
• M14: 13,613,705 km (0.099 R)
• M15: 14,276,873 km (0.067 R)
• M16: 25,507,035 km (0.117 R)
• M17: 27,739,784 km (0.066 R)
• M18: 28,805,369 km (0.086 R)
• M19: 30,607,724 km (0.106 R)
• M20: 34,991,540 km (0.049 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 615.9

Radius: 4

Gravity: 38.49 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 5.93 AU - 8.47 AU

Year: 12883 Days

Day: 17.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 154.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 54,776,243 km

• M1: 49,816 km (0.11 R)
• M2: 227,090 km (0.088 R)
• M3: 500,854 km (0.092 R)
• M4: 632,500 km (0.073 R)
• M5: 1,151,006 km (0.053 R)
• M6: 1,357,002 km (0.061 R)
• M7: 1,826,291 km (0.03 R)
• M8: 2,238,882 km (0.1 R)
• M9: 4,492,574 km (0.084 R)
• M10: 5,587,780 km (0.119 R)
• M11: 5,952,050 km (0.107 R)
• M12: 9,456,081 km (0.063 R)
• M13: 9,609,270 km (0.115 R)
• M14: 10,345,590 km (0.086 R)
• M15: 11,752,858 km (0.095 R)
• M16: 13,996,227 km (0.117 R)
• M17: 18,184,668 km (0.116 R)
• M18: 24,936,918 km (0.049 R)
• M19: 31,796,279 km (0.094 R)
• M20: 36,586,702 km (0.071 R)
• M21: 44,783,170 km (0.099 R)
• M22: 47,565,989 km (0.07 R)
• M23: 51,873,959 km (0.062 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 497 - 13,871 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit