🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.3

Radius: 10

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.6 AU - 0.78 AU

Year: 382 Days

Day: 7.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,603,502 km

• M1: 124,765 km (0.029 R)
• M2: 522,246 km (0.065 R)
• M3: 872,156 km (0.072 R)
• M4: 1,221,317 km (0.075 R)
• M5: 1,579,903 km (0.095 R)
• M6: 1,941,182 km (0.118 R)
• M7: 2,264,762 km (0.097 R)
• M8: 2,624,695 km (0.116 R)
• M9: 3,147,090 km (0.078 R)
• M10: 4,413,287 km (0.055 R)

Asteroid Belt

Center: 1.14 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.1

Radius: 14.3

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.37 AU - 1.81 AU

Year: 1337 Days

Day: 13.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,603,502 km

• M1: 178,021 km (0.077 R)
• M2: 747,840 km (0.087 R)
• M3: 1,270,385 km (0.058 R)
• M4: 1,825,393 km (0.101 R)
• M5: 3,427,586 km (0.11 R)
• M6: 4,158,522 km (0.104 R)
• M7: 4,702,310 km (0.096 R)
• M8: 7,394,623 km (0.091 R)
• M9: 7,914,625 km (0.09 R)
• M10: 9,915,796 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 223.6

Radius: 9.8

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.85 AU - 1.95 AU

Year: 1746 Days

Day: 9.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,603,502 km

• M1: 121,922 km (0.026 R)
• M2: 491,429 km (0.072 R)
• M3: 949,049 km (0.097 R)
• M4: 1,335,460 km (0.052 R)
• M5: 1,656,198 km (0.078 R)
• M6: 2,059,065 km (0.034 R)
• M7: 2,550,344 km (0.07 R)
• M8: 3,340,072 km (0.117 R)
• M9: 4,005,034 km (0.056 R)
• M10: 4,369,305 km (0.052 R)
• M11: 5,927,367 km (0.113 R)
• M12: 7,137,314 km (0.062 R)
• M13: 9,624,678 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390

Radius: 12.8

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.65 AU - 2.27 AU

Year: 1830 Days

Day: 8.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 63,603,502 km

• M1: 159,172 km (0.071 R)
• M2: 585,376 km (0.119 R)
• M3: 1,076,057 km (0.045 R)
• M4: 1,480,421 km (0.105 R)
• M5: 2,286,155 km (0.084 R)
• M6: 4,590,111 km (0.12 R)
• M7: 5,058,353 km (0.112 R)
• M8: 5,820,554 km (0.087 R)
• M9: 7,004,771 km (0.028 R)
• M10: 7,442,045 km (0.068 R)
• M11: 7,925,097 km (0.107 R)
• M12: 8,457,516 km (0.046 R)
• M13: 11,452,315 km (0.04 R)
• M14: 11,879,717 km (0.094 R)
• M15: 12,466,290 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.1

Radius: 9.5

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 2.42 AU - 3.68 AU

Year: 3552 Days

Day: 7.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,603,502 km

• M1: 171,439 km (0.064 R)
• M2: 493,374 km (0.099 R)
• M3: 867,219 km (0.104 R)
• M4: 1,233,883 km (0.084 R)
• M5: 1,704,069 km (0.03 R)
• M6: 4,636,188 km (0.108 R)
• M7: 5,013,025 km (0.057 R)
• M8: 7,420,653 km (0.088 R)
• M9: 7,752,461 km (0.082 R)
• M10: 12,676,924 km (0.079 R)
• M11: 16,818,391 km (0.07 R)
• M12: 17,818,154 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.8

Radius: 10.9

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.92 AU - 3.82 AU

Year: 4125 Days

Day: 12.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,603,502 km

• M1: 136,732 km (0.101 R)
• M2: 593,156 km (0.115 R)
• M3: 1,789,789 km (0.111 R)
• M4: 2,131,022 km (0.116 R)
• M5: 2,963,384 km (0.066 R)
• M6: 3,362,212 km (0.12 R)
• M7: 4,488,983 km (0.055 R)
• M8: 7,216,003 km (0.116 R)
• M9: 11,890,787 km (0.074 R)
• M10: 14,241,119 km (0.03 R)
• M11: 14,828,141 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 328.8

Radius: 5.1

Gravity: 12.64 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 6.68 AU - 7.94 AU

Year: 13180 Days

Day: 15.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 65.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 63,603,502 km

• M1: 63,579 km (0.062 R)
• M2: 258,505 km (0.106 R)
• M3: 648,058 km (0.048 R)
• M4: 1,095,356 km (0.119 R)
• M5: 1,458,130 km (0.082 R)
• M6: 1,818,512 km (0.105 R)
• M7: 1,978,432 km (0.117 R)
• M8: 2,236,189 km (0.099 R)
• M9: 2,654,465 km (0.12 R)
• M10: 4,006,680 km (0.117 R)
• M11: 4,420,019 km (0.076 R)
• M12: 6,545,356 km (0.109 R)
• M13: 7,276,291 km (0.032 R)
• M14: 10,339,606 km (0.106 R)
• M15: 13,074,405 km (0.095 R)
• M16: 13,613,107 km (0.093 R)
• M17: 14,670,914 km (0.101 R)
• M18: 16,256,053 km (0.088 R)
• M19: 17,231,431 km (0.084 R)
• M20: 18,319,306 km (0.12 R)
• M21: 21,360,482 km (0.08 R)
• M22: 23,216,243 km (0.082 R)
• M23: 24,541,531 km (0.094 R)
• M24: 30,974,389 km (0.075 R)
• M25: 33,456,217 km (0.098 R)
• M26: 36,300,671 km (0.086 R)
• M27: 38,445,755 km (0.081 R)
• M28: 40,296,730 km (0.116 R)
• M29: 44,442,236 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 391.9

Radius: 3

Gravity: 43.54 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 9.65 AU - 9.79 AU

Year: 20208 Days

Day: 15.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 63,603,502 km

• M1: 37,549 km (0.108 R)
• M2: 569,070 km (0.09 R)
• M3: 1,030,580 km (0.055 R)
• M4: 1,967,960 km (0.076 R)
• M5: 7,935,569 km (0.087 R)
• M6: 8,030,862 km (0.119 R)
• M7: 12,763,391 km (0.109 R)
• M8: 13,562,693 km (0.066 R)
• M9: 22,027,987 km (0.114 R)
• M10: 22,692,351 km (0.112 R)
• M11: 24,664,201 km (0.094 R)
• M12: 26,110,364 km (0.072 R)
• M13: 26,640,389 km (0.091 R)
• M14: 29,626,362 km (0.053 R)
• M15: 32,339,768 km (0.116 R)
• M16: 36,383,698 km (0.108 R)
• M17: 36,779,235 km (0.106 R)
• M18: 40,468,917 km (0.117 R)
• M19: 46,531,670 km (0.103 R)
• M20: 52,666,080 km (0.1 R)
• M21: 53,341,514 km (0.095 R)
• M22: 57,694,364 km (0.092 R)
• M23: 58,052,501 km (0.115 R)
• M24: 60,416,446 km (0.119 R)
• M25: 63,033,063 km (0.114 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: 481 - 12,963 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit