🌌 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: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.45 AU - 0.59 AU

Year: 246 Days

Day: 24.7 Hours

Environment

Temp: -123 °C

Axial Tilt: 27.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 80,278,422 km

• M1: 121,922 km (0.119 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.49

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.55 AU - 0.77 AU

Year: 352 Days

Day: 45.9 Hours

Environment

Temp: -126 °C

Axial Tilt: 10.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784.8

Radius: 13.3

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.73 AU - 1.01 AU

Year: 532 Days

Day: 8.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 80,278,422 km

• M1: 165,455 km (0.089 R)
• M2: 671,694 km (0.115 R)
• M3: 1,197,381 km (0.117 R)
• M4: 1,708,108 km (0.06 R)
• M5: 2,149,422 km (0.045 R)
• M6: 2,615,270 km (0.092 R)
• M7: 3,622,363 km (0.032 R)
• M8: 4,730,285 km (0.08 R)
• M9: 5,813,672 km (0.113 R)
• M10: 6,810,593 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21

Radius: 8.6

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.83 AU - 1.19 AU

Year: 666 Days

Day: 9.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 80,278,422 km

• M1: 107,561 km (0.063 R)
• M2: 425,307 km (0.097 R)
• M3: 724,951 km (0.076 R)
• M4: 1,670,111 km (0.027 R)
• M5: 2,058,915 km (0.084 R)
• M6: 2,346,293 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.6

Radius: 10.3

Gravity: 8.05 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 3.05 AU - 3.59 AU

Year: 3968 Days

Day: 9.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 80,278,422 km

• M1: 128,355 km (0.118 R)
• M2: 511,326 km (0.086 R)
• M3: 970,142 km (0.09 R)
• M4: 1,306,737 km (0.058 R)
• M5: 1,889,272 km (0.081 R)
• M6: 2,757,089 km (0.112 R)
• M7: 3,137,367 km (0.055 R)
• M8: 3,656,621 km (0.036 R)
• M9: 4,049,166 km (0.076 R)
• M10: 5,454,338 km (0.066 R)
• M11: 8,579,737 km (0.106 R)
• M12: 8,962,109 km (0.107 R)
• M13: 9,843,540 km (0.094 R)
• M14: 10,434,003 km (0.107 R)
• M15: 12,395,829 km (0.113 R)
• M16: 13,084,428 km (0.098 R)
• M17: 15,082,607 km (0.072 R)
• M18: 16,916,527 km (0.117 R)
• M19: 19,152,118 km (0.073 R)
• M20: 21,229,434 km (0.11 R)
• M21: 21,788,930 km (0.095 R)
• M22: 22,937,542 km (0.09 R)
• M23: 23,900,205 km (0.106 R)
• M24: 25,747,738 km (0.081 R)
• M25: 27,112,819 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.3

Radius: 12.1

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 2.7 AU - 4.14 AU

Year: 4149 Days

Day: 8.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 80,278,422 km

• M1: 150,645 km (0.069 R)
• M2: 563,984 km (0.118 R)
• M3: 967,150 km (0.091 R)
• M4: 1,392,607 km (0.088 R)
• M5: 1,957,039 km (0.072 R)
• M6: 2,550,644 km (0.068 R)
• M7: 3,038,782 km (0.106 R)
• M8: 3,938,314 km (0.116 R)
• M9: 5,883,535 km (0.101 R)
• M10: 6,428,370 km (0.079 R)
• M11: 7,525,072 km (0.034 R)
• M12: 8,036,547 km (0.12 R)
• M13: 8,435,226 km (0.099 R)
• M14: 8,881,925 km (0.069 R)
• M15: 9,490,040 km (0.113 R)
• M16: 10,202,425 km (0.118 R)
• M17: 12,687,994 km (0.113 R)
• M18: 13,275,614 km (0.074 R)
• M19: 14,359,750 km (0.077 R)
• M20: 16,384,258 km (0.119 R)
• M21: 17,299,947 km (0.099 R)
• M22: 17,854,356 km (0.096 R)
• M23: 18,477,731 km (0.116 R)
• M24: 20,868,005 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.8

Radius: 11.2

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 4.19 AU - 5.33 AU

Year: 6813 Days

Day: 7.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 80,278,422 km

• M1: 140,323 km (0.049 R)
• M2: 511,026 km (0.108 R)
• M3: 930,499 km (0.051 R)
• M4: 1,471,893 km (0.11 R)
• M5: 1,831,078 km (0.053 R)
• M6: 2,675,408 km (0.112 R)
• M7: 5,181,472 km (0.091 R)
• M8: 7,643,554 km (0.074 R)
• M9: 8,530,370 km (0.104 R)
• M10: 9,042,144 km (0.102 R)
• M11: 11,096,572 km (0.069 R)
• M12: 16,890,048 km (0.116 R)
• M13: 22,290,532 km (0.112 R)
• M14: 23,510,353 km (0.082 R)
• M15: 25,993,976 km (0.082 R)
• M16: 29,893,993 km (0.116 R)
• M17: 31,376,508 km (0.094 R)
• M18: 37,571,655 km (0.053 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 535.5

Radius: 3.8

Gravity: 37.08 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 9.48 AU - 10.5 AU

Year: 20714 Days

Day: 20 Hours

Environment

Temp: -236 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 80,278,422 km

• M1: 47,273 km (0.089 R)
• M2: 187,297 km (0.094 R)
• M3: 309,069 km (0.102 R)
• M4: 612,304 km (0.111 R)
• M5: 1,088,923 km (0.087 R)
• M6: 1,250,189 km (0.037 R)
• M7: 1,944,772 km (0.092 R)
• M8: 2,081,654 km (0.1 R)
• M9: 3,448,680 km (0.058 R)
• M10: 5,246,547 km (0.073 R)
• M11: 5,669,011 km (0.109 R)
• M12: 7,350,043 km (0.102 R)
• M13: 7,829,354 km (0.115 R)
• M14: 7,977,157 km (0.085 R)
• M15: 8,278,297 km (0.079 R)
• M16: 14,110,071 km (0.107 R)
• M17: 14,924,033 km (0.092 R)
• M18: 15,925,741 km (0.103 R)
• M19: 17,302,191 km (0.059 R)
• M20: 18,320,204 km (0.097 R)
• M21: 19,921,200 km (0.107 R)
• M22: 26,477,327 km (0.051 R)
• M23: 31,647,878 km (0.077 R)
• M24: 31,772,643 km (0.12 R)
• M25: 33,038,091 km (0.102 R)
• M26: 33,683,307 km (0.066 R)
• M27: 35,804,306 km (0.083 R)
• M28: 41,942,157 km (0.057 R)
• M29: 42,092,652 km (0.081 R)
• M30: 44,550,246 km (0.092 R)
• M31: 48,413,312 km (0.111 R)
• M32: 51,452,991 km (0.082 R)
• M33: 52,668,623 km (0.111 R)
• M34: 54,976,769 km (0.079 R)
• M35: 55,157,034 km (0.111 R)
• M36: 56,797,375 km (0.107 R)
• M37: 66,098,473 km (0.042 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 617.3

Radius: 4.6

Gravity: 29.17 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 8.51 AU - 12.81 AU

Year: 22832 Days

Day: 23.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 80,278,422 km

• M1: 73,752 km (0.108 R)
• M2: 444,455 km (0.108 R)
• M3: 768,783 km (0.055 R)
• M4: 934,837 km (0.06 R)
• M5: 1,236,875 km (0.051 R)
• M6: 2,836,525 km (0.099 R)
• M7: 3,073,189 km (0.087 R)
• M8: 5,076,753 km (0.114 R)
• M9: 8,600,531 km (0.104 R)
• M10: 12,000,292 km (0.08 R)
• M11: 14,372,915 km (0.068 R)
• M12: 16,955,423 km (0.079 R)
• M13: 21,583,382 km (0.096 R)
• M14: 30,249,886 km (0.045 R)
• M15: 31,393,113 km (0.038 R)
• M16: 37,688,790 km (0.047 R)
• M17: 38,419,875 km (0.098 R)
• M18: 39,910,618 km (0.102 R)
• M19: 43,165,568 km (0.066 R)
• M20: 43,965,767 km (0.113 R)
• M21: 71,253,765 km (0.05 R)
• M22: 74,640,062 km (0.072 R)
• M23: 78,131,826 km (0.102 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 384 - 10,561 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit