🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.5

Radius: 13.6

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.57 AU - 0.85 AU

Year: 392 Days

Day: 11.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,328,081 km

• M1: 169,195 km (0.114 R)
• M2: 711,487 km (0.093 R)
• M3: 1,147,864 km (0.072 R)
• M4: 1,572,274 km (0.079 R)
• M5: 2,104,543 km (0.104 R)
• M6: 2,650,874 km (0.105 R)
• M7: 3,190,923 km (0.101 R)
• M8: 3,849,303 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.5

Radius: 13.4

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.49 AU - 1.71 AU

Year: 1328 Days

Day: 12 Hours

Environment

Temp: -183 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,328,081 km

• M1: 166,652 km (0.061 R)
• M2: 589,565 km (0.101 R)
• M3: 1,013,226 km (0.111 R)
• M4: 1,466,358 km (0.075 R)
• M5: 2,529,850 km (0.071 R)
• M6: 4,020,892 km (0.117 R)
• M7: 5,008,836 km (0.119 R)
• M8: 5,966,113 km (0.099 R)
• M9: 7,708,329 km (0.11 R)
• M10: 8,329,460 km (0.063 R)
• M11: 9,512,629 km (0.116 R)
• M12: 10,632,968 km (0.047 R)
• M13: 11,225,375 km (0.095 R)
• M14: 11,693,018 km (0.068 R)
• M15: 13,254,222 km (0.055 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.6

Radius: 13.2

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 3.36 AU - 4.14 AU

Year: 4764 Days

Day: 7 Hours

Environment

Temp: -201 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,328,081 km

• M1: 164,109 km (0.092 R)
• M2: 974,929 km (0.064 R)
• M3: 1,486,704 km (0.092 R)
• M4: 2,400,148 km (0.063 R)
• M5: 3,042,372 km (0.032 R)
• M6: 3,507,322 km (0.075 R)
• M7: 4,765,590 km (0.099 R)
• M8: 5,295,914 km (0.093 R)
• M9: 5,892,511 km (0.097 R)
• M10: 6,418,796 km (0.069 R)
• M11: 7,006,715 km (0.107 R)
• M12: 8,496,112 km (0.085 R)
• M13: 9,352,410 km (0.103 R)
• M14: 12,627,107 km (0.12 R)
• M15: 13,130,504 km (0.073 R)
• M16: 14,423,030 km (0.109 R)
• M17: 15,537,534 km (0.058 R)
• M18: 17,093,352 km (0.113 R)
• M19: 18,750,896 km (0.069 R)
• M20: 19,527,758 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 920.7

Radius: 10.2

Gravity: 8.85 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 3.42 AU - 4.36 AU

Year: 5033 Days

Day: 7.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,328,081 km

• M1: 130,599 km (0.106 R)
• M2: 654,191 km (0.034 R)
• M3: 991,535 km (0.109 R)
• M4: 2,325,499 km (0.102 R)
• M5: 2,928,678 km (0.091 R)
• M6: 3,745,631 km (0.044 R)
• M7: 4,269,822 km (0.108 R)
• M8: 5,406,467 km (0.096 R)
• M9: 6,013,984 km (0.048 R)
• M10: 6,632,571 km (0.059 R)
• M11: 7,437,707 km (0.11 R)
• M12: 7,845,212 km (0.087 R)
• M13: 8,949,992 km (0.07 R)
• M14: 9,932,551 km (0.098 R)
• M15: 13,914,397 km (0.077 R)
• M16: 15,054,782 km (0.094 R)
• M17: 20,532,009 km (0.1 R)
• M18: 28,534,896 km (0.082 R)
• M19: 31,702,332 km (0.1 R)
• M20: 32,284,716 km (0.034 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.4

Radius: 8.4

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.38 AU - 5.54 AU

Year: 6179 Days

Day: 5.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 55,328,081 km

• M1: 104,569 km (0.061 R)
• M2: 457,021 km (0.088 R)
• M3: 1,049,130 km (0.114 R)
• M4: 1,475,933 km (0.052 R)
• M5: 1,905,578 km (0.077 R)
• M6: 2,401,046 km (0.06 R)
• M7: 2,943,338 km (0.11 R)
• M8: 7,352,287 km (0.025 R)
• M9: 7,944,395 km (0.092 R)
• M10: 9,665,369 km (0.108 R)
• M11: 10,121,194 km (0.075 R)
• M12: 11,994,907 km (0.074 R)
• M13: 17,244,296 km (0.111 R)
• M14: 18,225,808 km (0.03 R)
• M15: 19,114,718 km (0.104 R)
• M16: 20,099,072 km (0.079 R)
• M17: 21,324,279 km (0.109 R)
• M18: 23,401,745 km (0.06 R)
• M19: 25,610,707 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.8

Radius: 11.7

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 4.78 AU - 5.23 AU

Year: 7334 Days

Day: 8.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,328,081 km

• M1: 148,401 km (0.07 R)
• M2: 577,149 km (0.112 R)
• M3: 2,337,916 km (0.072 R)
• M4: 2,744,971 km (0.066 R)
• M5: 5,772,533 km (0.108 R)
• M6: 6,809,994 km (0.111 R)
• M7: 12,180,109 km (0.092 R)
• M8: 12,713,874 km (0.083 R)
• M9: 13,828,079 km (0.03 R)
• M10: 14,195,940 km (0.069 R)
• M11: 14,951,410 km (0.072 R)
• M12: 19,072,233 km (0.097 R)
• M13: 20,260,189 km (0.103 R)
• M14: 23,223,573 km (0.113 R)
• M15: 26,303,644 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 189

Radius: 6.6

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 5.77 AU - 7.09 AU

Year: 10696 Days

Day: 15.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 55,328,081 km

• M1: 82,428 km (0.11 R)
• M2: 354,397 km (0.102 R)
• M3: 578,645 km (0.091 R)
• M4: 961,017 km (0.08 R)
• M5: 1,284,148 km (0.115 R)
• M6: 2,196,994 km (0.048 R)
• M7: 3,128,391 km (0.058 R)
• M8: 3,982,894 km (0.099 R)
• M9: 4,502,896 km (0.062 R)
• M10: 6,047,793 km (0.093 R)
• M11: 6,368,381 km (0.114 R)
• M12: 7,398,961 km (0.119 R)
• M13: 9,356,599 km (0.105 R)
• M14: 10,094,116 km (0.08 R)
• M15: 11,832,593 km (0.117 R)
• M16: 14,372,765 km (0.113 R)
• M17: 17,382,973 km (0.056 R)
• M18: 19,446,377 km (0.109 R)
• M19: 30,628,668 km (0.117 R)
• M20: 31,193,699 km (0.085 R)
• M21: 32,150,976 km (0.031 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 315.4

Radius: 4.6

Gravity: 14.91 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 8.3 AU - 10.08 AU

Year: 18276 Days

Day: 20.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,328,081 km

• M1: 58,493 km (0.104 R)
• M2: 729,738 km (0.06 R)
• M3: 2,593,129 km (0.035 R)
• M4: 3,235,952 km (0.119 R)
• M5: 4,007,577 km (0.077 R)
• M6: 5,161,276 km (0.078 R)
• M7: 6,842,457 km (0.098 R)
• M8: 8,332,452 km (0.118 R)
• M9: 9,252,927 km (0.047 R)
• M10: 9,920,433 km (0.105 R)
• M11: 10,953,107 km (0.112 R)
• M12: 12,115,483 km (0.098 R)
• M13: 15,376,567 km (0.072 R)
• M14: 16,384,707 km (0.097 R)
• M15: 22,363,685 km (0.061 R)
• M16: 23,561,665 km (0.105 R)
• M17: 24,319,827 km (0.063 R)
• M18: 27,101,449 km (0.065 R)
• M19: 39,416,795 km (0.113 R)
• M20: 41,982,997 km (0.118 R)
• M21: 45,090,893 km (0.115 R)
• M22: 51,443,267 km (0.107 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 457 - 17,799 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit