🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.49

Radius: 0.75

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.42 AU - 0.62 AU

Year: 246 Days

Day: 21.6 Hours

Environment

Temp: -112 °C

Axial Tilt: 32.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,109,433 km

• M1: 20,645 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.5

Radius: 14.2

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.77 AU - 1.09 AU

Year: 588 Days

Day: 6.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,109,433 km

• M1: 176,974 km (0.099 R)
• M2: 723,904 km (0.047 R)
• M3: 1,313,469 km (0.094 R)
• M4: 1,830,629 km (0.073 R)
• M5: 2,494,544 km (0.057 R)
• M6: 3,039,230 km (0.111 R)
• M7: 3,493,110 km (0.119 R)
• M8: 4,077,888 km (0.09 R)
• M9: 5,859,449 km (0.09 R)
• M10: 6,913,965 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.2

Radius: 8.1

Gravity: 7.62 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.79 AU - 1.27 AU

Year: 686 Days

Day: 6.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 47,109,433 km

• M1: 101,128 km (0.069 R)
• M2: 401,221 km (0.042 R)
• M3: 699,968 km (0.107 R)
• M4: 1,126,622 km (0.049 R)
• M5: 1,380,040 km (0.041 R)
• M6: 1,656,497 km (0.069 R)
• M7: 1,987,557 km (0.105 R)
• M8: 2,599,413 km (0.104 R)
• M9: 2,863,303 km (0.116 R)
• M10: 3,194,064 km (0.084 R)
• M11: 3,536,942 km (0.084 R)
• M12: 4,192,780 km (0.04 R)
• M13: 5,281,702 km (0.093 R)
• M14: 6,330,982 km (0.109 R)
• M15: 6,894,667 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.2

Radius: 12

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.06 AU - 1.48 AU

Year: 939 Days

Day: 7.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 47,109,433 km

• M1: 149,299 km (0.099 R)
• M2: 553,363 km (0.063 R)
• M3: 996,621 km (0.104 R)
• M4: 1,795,474 km (0.079 R)
• M5: 2,215,694 km (0.079 R)
• M6: 3,060,623 km (0.11 R)
• M7: 3,565,366 km (0.086 R)
• M8: 3,952,825 km (0.101 R)
• M9: 4,519,352 km (0.043 R)
• M10: 5,084,084 km (0.089 R)
• M11: 5,896,400 km (0.117 R)
• M12: 6,484,768 km (0.116 R)
• M13: 7,512,057 km (0.069 R)
• M14: 7,927,341 km (0.106 R)
• M15: 9,238,716 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.8

Radius: 9

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 2.53 AU - 2.67 AU

Year: 2750 Days

Day: 8.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,109,433 km

• M1: 111,899 km (0.081 R)
• M2: 401,072 km (0.1 R)
• M3: 732,431 km (0.089 R)
• M4: 1,149,211 km (0.08 R)
• M5: 1,557,613 km (0.111 R)
• M6: 2,259,227 km (0.09 R)
• M7: 3,351,441 km (0.093 R)
• M8: 5,480,817 km (0.111 R)
• M9: 7,155,266 km (0.094 R)
• M10: 7,866,454 km (0.071 R)
• M11: 9,429,303 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458

Radius: 9.4

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.46 AU - 3.9 AU

Year: 3720 Days

Day: 5.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 47,109,433 km

• M1: 116,836 km (0.079 R)
• M2: 513,719 km (0.101 R)
• M3: 830,119 km (0.039 R)
• M4: 1,486,554 km (0.08 R)
• M5: 2,029,894 km (0.103 R)
• M6: 3,512,259 km (0.103 R)
• M7: 4,026,726 km (0.054 R)
• M8: 4,705,003 km (0.101 R)
• M9: 5,011,379 km (0.044 R)
• M10: 5,638,045 km (0.07 R)
• M11: 6,544,308 km (0.086 R)
• M12: 9,507,992 km (0.107 R)
• M13: 9,999,570 km (0.063 R)
• M14: 10,587,640 km (0.074 R)
• M15: 11,407,436 km (0.069 R)
• M16: 11,704,238 km (0.112 R)
• M17: 12,006,127 km (0.065 R)
• M18: 14,811,536 km (0.101 R)
• M19: 17,855,852 km (0.071 R)
• M20: 19,494,099 km (0.092 R)
• M21: 21,615,396 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 696.1

Radius: 7.6

Gravity: 12.05 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 5.27 AU - 6.75 AU

Year: 9665 Days

Day: 23.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 47,109,433 km

• M1: 94,546 km (0.096 R)
• M2: 542,442 km (0.06 R)
• M3: 1,495,081 km (0.113 R)
• M4: 2,127,581 km (0.116 R)
• M5: 2,418,549 km (0.084 R)
• M6: 2,777,434 km (0.1 R)
• M7: 3,080,968 km (0.111 R)
• M8: 3,577,783 km (0.101 R)
• M9: 3,858,727 km (0.072 R)
• M10: 4,552,413 km (0.106 R)
• M11: 6,897,659 km (0.038 R)
• M12: 8,847,218 km (0.111 R)
• M13: 9,997,925 km (0.115 R)
• M14: 12,132,537 km (0.12 R)
• M15: 13,796,215 km (0.11 R)
• M16: 14,234,836 km (0.068 R)
• M17: 18,010,836 km (0.116 R)
• M18: 23,539,823 km (0.106 R)
• M19: 24,620,369 km (0.107 R)
• M20: 25,922,319 km (0.119 R)
• M21: 29,686,800 km (0.113 R)
• M22: 30,947,312 km (0.11 R)
• M23: 31,698,891 km (0.073 R)
• M24: 34,254,322 km (0.054 R)
• M25: 34,712,241 km (0.111 R)
• M26: 38,278,505 km (0.073 R)
• M27: 39,019,912 km (0.093 R)
• M28: 40,023,265 km (0.112 R)
• M29: 40,531,299 km (0.074 R)
• M30: 41,820,384 km (0.065 R)
• M31: 42,212,480 km (0.083 R)
• M32: 43,403,129 km (0.118 R)
• M33: 44,752,203 km (0.059 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 329 - 20,157 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit