🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.63 AU - 0.71 AU

Year: 349 Days

Day: 40.2 Hours

Environment

Temp: -125 °C

Axial Tilt: 37.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,616,705 km

• M1: 563,834 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.6

Radius: 11.9

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.7 AU - 0.76 AU

Year: 397 Days

Day: 14.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,616,705 km

• M1: 148,102 km (0.106 R)
• M2: 583,581 km (0.096 R)
• M3: 958,474 km (0.107 R)
• M4: 1,397,543 km (0.093 R)
• M5: 1,835,416 km (0.099 R)
• M6: 2,315,476 km (0.032 R)
• M7: 3,096,227 km (0.084 R)
• M8: 3,520,935 km (0.075 R)
• M9: 3,912,433 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.8

Radius: 8.7

Gravity: 12.05 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.72 AU - 1.08 AU

Year: 543 Days

Day: 5.9 Hours

Environment

Temp: -146 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,616,705 km

• M1: 108,159 km (0.117 R)
• M2: 504,294 km (0.054 R)
• M3: 800,947 km (0.076 R)
• M4: 1,096,702 km (0.089 R)
• M5: 1,389,016 km (0.1 R)
• M6: 1,733,839 km (0.071 R)
• M7: 2,116,959 km (0.104 R)
• M8: 2,482,277 km (0.065 R)
• M9: 2,775,190 km (0.073 R)
• M10: 4,307,521 km (0.069 R)
• M11: 5,432,347 km (0.083 R)
• M12: 5,872,764 km (0.105 R)
• M13: 7,294,542 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.5

Radius: 11.2

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.42 AU - 1.7 AU

Year: 1239 Days

Day: 10.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,616,705 km

• M1: 139,276 km (0.116 R)
• M2: 546,930 km (0.044 R)
• M3: 1,164,021 km (0.116 R)
• M4: 1,609,374 km (0.12 R)
• M5: 2,178,743 km (0.052 R)
• M6: 3,069,000 km (0.088 R)
• M7: 4,273,562 km (0.082 R)
• M8: 4,934,935 km (0.047 R)
• M9: 5,310,724 km (0.085 R)
• M10: 6,323,652 km (0.083 R)
• M11: 7,359,018 km (0.088 R)
• M12: 8,901,373 km (0.069 R)
• M13: 10,911,519 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.8

Radius: 14.9

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.52 AU - 1.86 AU

Year: 1397 Days

Day: 6.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,616,705 km

• M1: 185,352 km (0.119 R)
• M2: 682,914 km (0.112 R)
• M3: 1,459,028 km (0.061 R)
• M4: 2,505,316 km (0.05 R)
• M5: 3,136,170 km (0.105 R)
• M6: 5,201,368 km (0.095 R)
• M7: 6,841,709 km (0.111 R)
• M8: 8,057,192 km (0.035 R)
• M9: 8,687,298 km (0.093 R)
• M10: 9,443,366 km (0.064 R)
• M11: 10,210,055 km (0.089 R)
• M12: 11,017,883 km (0.082 R)
• M13: 11,977,404 km (0.115 R)
• M14: 12,496,509 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.8

Radius: 8.4

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.87 AU - 2.17 AU

Year: 1825 Days

Day: 5.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,616,705 km

• M1: 104,419 km (0.034 R)
• M2: 417,677 km (0.081 R)
• M3: 692,788 km (0.079 R)
• M4: 980,913 km (0.107 R)
• M5: 1,275,322 km (0.068 R)
• M6: 1,849,478 km (0.074 R)
• M7: 2,455,051 km (0.096 R)
• M8: 2,747,066 km (0.101 R)
• M9: 3,075,882 km (0.107 R)
• M10: 3,387,045 km (0.101 R)
• M11: 3,734,561 km (0.117 R)
• M12: 4,156,128 km (0.063 R)
• M13: 5,037,110 km (0.071 R)
• M14: 5,410,357 km (0.101 R)
• M15: 6,641,996 km (0.051 R)
• M16: 6,971,111 km (0.047 R)
• M17: 8,024,579 km (0.117 R)
• M18: 8,923,962 km (0.109 R)
• M19: 10,697,145 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 366.9

Radius: 8.4

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.98 AU - 2.3 AU

Year: 1990 Days

Day: 8.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,616,705 km

• M1: 104,419 km (0.116 R)
• M2: 425,606 km (0.1 R)
• M3: 838,346 km (0.068 R)
• M4: 1,158,636 km (0.115 R)
• M5: 1,625,231 km (0.116 R)
• M6: 1,934,450 km (0.077 R)
• M7: 2,740,334 km (0.119 R)
• M8: 3,380,912 km (0.061 R)
• M9: 3,686,989 km (0.119 R)
• M10: 5,018,709 km (0.115 R)
• M11: 5,396,594 km (0.107 R)
• M12: 6,645,287 km (0.043 R)
• M13: 6,998,338 km (0.084 R)
• M14: 7,443,840 km (0.09 R)
• M15: 7,852,392 km (0.072 R)
• M16: 9,734,633 km (0.117 R)
• M17: 10,223,518 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.4

Radius: 10.1

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 2.31 AU - 3.49 AU

Year: 3140 Days

Day: 9.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 60,616,705 km

• M1: 125,812 km (0.118 R)
• M2: 514,617 km (0.085 R)
• M3: 1,413,999 km (0.106 R)
• M4: 2,559,470 km (0.118 R)
• M5: 2,884,546 km (0.082 R)
• M6: 3,507,172 km (0.034 R)
• M7: 3,910,189 km (0.106 R)
• M8: 4,365,565 km (0.048 R)
• M9: 4,696,027 km (0.092 R)
• M10: 5,067,179 km (0.115 R)
• M11: 5,583,890 km (0.095 R)
• M12: 6,217,138 km (0.07 R)
• M13: 8,339,782 km (0.096 R)
• M14: 9,025,838 km (0.12 R)
• M15: 9,749,144 km (0.111 R)
• M16: 10,393,910 km (0.09 R)
• M17: 13,124,072 km (0.082 R)
• M18: 14,147,321 km (0.092 R)
• M19: 15,073,182 km (0.114 R)
• M20: 15,474,853 km (0.114 R)
• M21: 16,404,903 km (0.119 R)
• M22: 17,207,944 km (0.076 R)
• M23: 20,439,258 km (0.071 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 392.1

Radius: 6.8

Gravity: 8.48 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 4.84 AU - 7.64 AU

Year: 9911 Days

Day: 20.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 60,616,705 km

• M1: 84,523 km (0.076 R)
• M2: 577,597 km (0.102 R)
• M3: 923,617 km (0.084 R)
• M4: 1,503,309 km (0.043 R)
• M5: 1,865,635 km (0.05 R)
• M6: 2,906,088 km (0.073 R)
• M7: 3,778,693 km (0.096 R)
• M8: 4,423,160 km (0.079 R)
• M9: 4,814,807 km (0.08 R)
• M10: 5,108,618 km (0.077 R)
• M11: 5,667,515 km (0.113 R)
• M12: 7,550,504 km (0.119 R)
• M13: 8,233,717 km (0.077 R)
• M14: 8,783,340 km (0.091 R)
• M15: 9,267,289 km (0.107 R)
• M16: 9,584,436 km (0.108 R)
• M17: 9,815,415 km (0.051 R)
• M18: 10,677,698 km (0.078 R)
• M19: 11,127,389 km (0.077 R)
• M20: 13,109,710 km (0.065 R)
• M21: 13,800,104 km (0.119 R)
• M22: 18,177,488 km (0.098 R)
• M23: 18,818,515 km (0.029 R)
• M24: 21,851,013 km (0.044 R)
• M25: 27,263,314 km (0.054 R)
• M26: 27,727,517 km (0.094 R)
• M27: 33,294,053 km (0.06 R)
• M28: 34,793,622 km (0.089 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 337.6

Radius: 7.6

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 9.66 AU - 10.44 AU

Year: 20257 Days

Day: 23.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 60,616,705 km

• M1: 94,695 km (0.053 R)
• M2: 361,428 km (0.098 R)
• M3: 1,880,146 km (0.059 R)
• M4: 2,269,549 km (0.101 R)
• M5: 2,941,842 km (0.109 R)
• M6: 4,265,783 km (0.104 R)
• M7: 5,463,763 km (0.051 R)
• M8: 7,479,744 km (0.089 R)
• M9: 10,329,583 km (0.085 R)
• M10: 12,587,763 km (0.073 R)
• M11: 13,232,829 km (0.065 R)
• M12: 13,697,181 km (0.063 R)
• M13: 15,155,910 km (0.117 R)
• M14: 17,336,748 km (0.116 R)
• M15: 18,053,920 km (0.101 R)
• M16: 20,587,809 km (0.115 R)
• M17: 20,853,644 km (0.057 R)
• M18: 21,573,509 km (0.081 R)
• M19: 22,873,066 km (0.114 R)
• M20: 26,557,512 km (0.104 R)
• M21: 30,275,617 km (0.076 R)
• M22: 32,139,457 km (0.108 R)
• M23: 33,342,523 km (0.034 R)
• M24: 38,188,596 km (0.079 R)
• M25: 40,086,096 km (0.111 R)
• M26: 42,904,819 km (0.12 R)
• M27: 47,222,363 km (0.117 R)
• M28: 49,565,365 km (0.078 R)
• M29: 57,582,315 km (0.093 R)
• M30: 60,073,568 km (0.061 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 532 - 10,730 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit