🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.42 AU - 0.68 AU

Year: 263 Days

Day: 32.8 Hours

Environment

Temp: -126 °C

Axial Tilt: 39.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 23,920,052 km

• M1: 186,399 km (0.078 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.63 AU - 0.69 AU

Year: 346 Days

Day: 24.4 Hours

Environment

Temp: -129 °C

Axial Tilt: 2.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.1

Radius: 8.3

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.69 AU - 1.13 AU

Year: 561 Days

Day: 8 Hours

Environment

Temp: -163 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 23,920,052 km

• M1: 103,223 km (0.053 R)
• M2: 373,546 km (0.104 R)
• M3: 657,782 km (0.112 R)
• M4: 1,028,485 km (0.063 R)
• M5: 1,409,960 km (0.097 R)
• M6: 1,716,935 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.6

Radius: 8.9

Gravity: 11.48 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.58 AU - 1.94 AU

Year: 1508 Days

Day: 12.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 23,920,052 km

• M1: 110,702 km (0.071 R)
• M2: 418,724 km (0.1 R)
• M3: 813,364 km (0.094 R)
• M4: 1,524,552 km (0.065 R)
• M5: 1,984,565 km (0.086 R)
• M6: 2,740,035 km (0.115 R)
• M7: 3,294,295 km (0.106 R)
• M8: 3,921,409 km (0.108 R)
• M9: 4,427,648 km (0.109 R)
• M10: 6,410,119 km (0.109 R)
• M11: 7,005,967 km (0.087 R)
• M12: 7,386,395 km (0.112 R)
• M13: 8,489,081 km (0.119 R)
• M14: 9,966,360 km (0.111 R)
• M15: 10,378,352 km (0.105 R)
• M16: 13,882,533 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.2

Radius: 12.5

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 1.73 AU - 2.59 AU

Year: 2050 Days

Day: 12.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 23,920,052 km

• M1: 163,211 km (0.102 R)
• M2: 635,492 km (0.11 R)
• M3: 1,027,588 km (0.113 R)
• M4: 1,460,973 km (0.09 R)
• M5: 2,018,225 km (0.056 R)
• M6: 2,523,716 km (0.078 R)
• M7: 2,930,024 km (0.08 R)
• M8: 3,426,390 km (0.093 R)
• M9: 3,944,447 km (0.111 R)
• M10: 4,385,312 km (0.085 R)
• M11: 4,819,894 km (0.053 R)
• M12: 5,283,348 km (0.119 R)
• M13: 5,843,143 km (0.066 R)
• M14: 6,781,421 km (0.079 R)
• M15: 7,817,686 km (0.109 R)
• M16: 8,317,193 km (0.116 R)
• M17: 8,720,509 km (0.083 R)
• M18: 9,691,548 km (0.098 R)
• M19: 11,246,768 km (0.111 R)
• M20: 11,884,354 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.6

Radius: 8.4

Gravity: 6.85 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 2.09 AU - 2.55 AU

Year: 2282 Days

Day: 12.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 23,920,052 km

• M1: 104,719 km (0.094 R)
• M2: 430,094 km (0.085 R)
• M3: 710,440 km (0.044 R)
• M4: 1,125,275 km (0.041 R)
• M5: 1,645,577 km (0.08 R)
• M6: 2,653,268 km (0.105 R)
• M7: 3,130,036 km (0.12 R)
• M8: 3,645,251 km (0.045 R)
• M9: 3,969,729 km (0.078 R)
• M10: 4,235,415 km (0.05 R)
• M11: 4,844,877 km (0.102 R)
• M12: 5,534,972 km (0.109 R)
• M13: 5,867,228 km (0.119 R)
• M14: 6,212,949 km (0.084 R)
• M15: 6,520,074 km (0.092 R)
• M16: 8,149,942 km (0.086 R)
• M17: 8,549,518 km (0.114 R)
• M18: 8,929,946 km (0.076 R)
• M19: 10,174,600 km (0.079 R)
• M20: 10,638,204 km (0.07 R)
• M21: 11,004,419 km (0.1 R)
• M22: 11,531,153 km (0.106 R)
• M23: 12,113,987 km (0.05 R)
• M24: 12,798,098 km (0.076 R)
• M25: 13,170,597 km (0.042 R)
• M26: 14,287,644 km (0.079 R)
• M27: 15,373,425 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.9

Radius: 11.4

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.8 AU - 4.46 AU

Year: 4466 Days

Day: 9.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 23,920,052 km

• M1: 145,110 km (0.11 R)
• M2: 803,191 km (0.092 R)
• M3: 1,161,328 km (0.039 R)
• M4: 1,585,139 km (0.108 R)
• M5: 2,690,069 km (0.118 R)
• M6: 3,258,990 km (0.092 R)
• M7: 5,565,639 km (0.088 R)
• M8: 6,259,025 km (0.108 R)
• M9: 7,040,225 km (0.086 R)
• M10: 7,651,482 km (0.088 R)
• M11: 9,203,111 km (0.109 R)
• M12: 10,334,670 km (0.087 R)
• M13: 10,829,091 km (0.059 R)
• M14: 11,556,436 km (0.106 R)
• M15: 12,362,020 km (0.073 R)
• M16: 13,396,789 km (0.113 R)
• M17: 14,185,020 km (0.089 R)
• M18: 14,590,580 km (0.034 R)
• M19: 17,246,091 km (0.117 R)
• M20: 17,942,469 km (0.064 R)
• M21: 21,843,533 km (0.045 R)
• M22: 23,635,865 km (0.108 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 299 - 11,594 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit