🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.27

Radius: 1.61

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.55 AU - 0.63 AU

Year: 293 Days

Day: 31.9 Hours

Environment

Temp: -129 °C

Axial Tilt: 21.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,029,947 km

• M1: 37,549 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.4

Radius: 9.1

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.87 AU - 0.99 AU

Year: 579 Days

Day: 13.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 83,029,947 km

• M1: 113,395 km (0.111 R)
• M2: 400,922 km (0.069 R)
• M3: 744,848 km (0.038 R)
• M4: 1,129,763 km (0.116 R)
• M5: 1,653,206 km (0.119 R)
• M6: 2,000,273 km (0.053 R)
• M7: 2,312,783 km (0.059 R)
• M8: 3,275,445 km (0.048 R)
• M9: 3,750,718 km (0.097 R)
• M10: 4,313,655 km (0.053 R)
• M11: 4,645,163 km (0.12 R)
• M12: 5,040,251 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552.7

Radius: 12.3

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.06 AU - 3.5 AU

Year: 3836 Days

Day: 13.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 83,029,947 km

• M1: 153,039 km (0.072 R)
• M2: 1,032,824 km (0.097 R)
• M3: 1,617,303 km (0.113 R)
• M4: 2,475,845 km (0.1 R)
• M5: 3,349,796 km (0.093 R)
• M6: 3,941,605 km (0.103 R)
• M7: 5,650,162 km (0.069 R)
• M8: 6,089,082 km (0.08 R)
• M9: 8,671,889 km (0.05 R)
• M10: 9,370,212 km (0.085 R)
• M11: 11,604,606 km (0.105 R)
• M12: 12,407,348 km (0.082 R)
• M13: 14,729,706 km (0.116 R)
• M14: 17,214,377 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860.8

Radius: 14.7

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 3.68 AU - 3.74 AU

Year: 4614 Days

Day: 9.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 83,029,947 km

• M1: 182,809 km (0.082 R)
• M2: 645,515 km (0.083 R)
• M3: 1,217,427 km (0.094 R)
• M4: 1,827,936 km (0.081 R)
• M5: 2,675,408 km (0.058 R)
• M6: 3,230,117 km (0.08 R)
• M7: 4,450,237 km (0.071 R)
• M8: 5,044,291 km (0.066 R)
• M9: 5,603,637 km (0.047 R)
• M10: 6,111,522 km (0.104 R)
• M11: 8,156,076 km (0.103 R)
• M12: 9,794,173 km (0.096 R)
• M13: 11,171,670 km (0.086 R)
• M14: 12,028,716 km (0.086 R)
• M15: 13,607,422 km (0.088 R)
• M16: 14,145,077 km (0.096 R)
• M17: 15,784,969 km (0.09 R)
• M18: 16,318,884 km (0.082 R)
• M19: 18,707,363 km (0.11 R)
• M20: 25,279,198 km (0.106 R)
• M21: 25,765,391 km (0.107 R)
• M22: 26,506,499 km (0.108 R)
• M23: 29,793,463 km (0.057 R)
• M24: 30,518,564 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.7

Radius: 12.6

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 3.93 AU - 4.75 AU

Year: 5838 Days

Day: 5.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 83,029,947 km

• M1: 156,779 km (0.064 R)
• M2: 575,952 km (0.061 R)
• M3: 1,802,056 km (0.11 R)
• M4: 2,246,810 km (0.055 R)
• M5: 4,726,545 km (0.079 R)
• M6: 8,159,816 km (0.05 R)
• M7: 8,734,571 km (0.079 R)
• M8: 9,722,216 km (0.074 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 384.6

Radius: 3

Gravity: 42.73 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 6.45 AU - 7.07 AU

Year: 11348 Days

Day: 15.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 83,029,947 km

• M1: 40,691 km (0.076 R)
• M2: 371,003 km (0.065 R)
• M3: 540,048 km (0.075 R)
• M4: 1,163,423 km (0.116 R)
• M5: 1,568,085 km (0.072 R)
• M6: 1,802,505 km (0.063 R)
• M7: 2,042,759 km (0.109 R)
• M8: 2,232,299 km (0.066 R)
• M9: 2,414,659 km (0.09 R)
• M10: 3,698,957 km (0.051 R)
• M11: 4,850,861 km (0.074 R)
• M12: 5,282,600 km (0.112 R)
• M13: 5,475,132 km (0.096 R)
• M14: 7,465,532 km (0.1 R)
• M15: 9,275,816 km (0.074 R)
• M16: 9,509,039 km (0.071 R)
• M17: 9,650,858 km (0.075 R)
• M18: 21,473,129 km (0.076 R)
• M19: 21,635,742 km (0.111 R)
• M20: 23,051,087 km (0.045 R)
• M21: 23,911,873 km (0.05 R)
• M22: 26,622,437 km (0.07 R)
• M23: 27,283,061 km (0.041 R)
• M24: 28,637,072 km (0.106 R)
• M25: 29,631,149 km (0.076 R)
• M26: 32,751,163 km (0.107 R)
• M27: 36,428,278 km (0.118 R)
• M28: 38,425,559 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 609.5

Radius: 6.4

Gravity: 14.88 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 9.3 AU - 13.08 AU

Year: 24169 Days

Day: 17.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 83,029,947 km

• M1: 87,664 km (0.084 R)
• M2: 596,297 km (0.075 R)
• M3: 892,501 km (0.105 R)
• M4: 1,284,597 km (0.102 R)
• M5: 1,537,567 km (0.06 R)
• M6: 2,623,199 km (0.076 R)
• M7: 3,170,278 km (0.057 R)
• M8: 3,697,461 km (0.081 R)
• M9: 4,418,972 km (0.119 R)
• M10: 6,225,216 km (0.062 R)
• M11: 7,944,844 km (0.096 R)
• M12: 8,636,883 km (0.056 R)
• M13: 9,196,080 km (0.098 R)
• M14: 9,426,311 km (0.091 R)
• M15: 10,386,281 km (0.081 R)
• M16: 16,857,286 km (0.043 R)
• M17: 17,115,792 km (0.058 R)
• M18: 17,376,989 km (0.096 R)
• M19: 17,996,923 km (0.079 R)
• M20: 20,137,369 km (0.054 R)
• M21: 22,234,732 km (0.051 R)
• M22: 22,650,165 km (0.067 R)
• M23: 23,711,412 km (0.114 R)
• M24: 24,805,272 km (0.08 R)
• M25: 28,167,334 km (0.099 R)
• M26: 31,821,113 km (0.063 R)
• M27: 35,074,268 km (0.075 R)
• M28: 36,925,691 km (0.113 R)
• M29: 39,899,846 km (0.066 R)
• M30: 48,894,269 km (0.105 R)
• M31: 49,950,280 km (0.115 R)
• M32: 50,305,725 km (0.085 R)
• M33: 52,290,440 km (0.12 R)
• M34: 55,080,290 km (0.109 R)
• M35: 61,972,414 km (0.091 R)
• M36: 71,875,045 km (0.06 R)
• M37: 72,328,027 km (0.099 R)
• M38: 78,391,079 km (0.118 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 190 - 17,093 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit