🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 376.2

Radius: 14.2

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.64 AU - 0.9 AU

Year: 475 Days

Day: 14.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 77,419,022 km

• M1: 177,423 km (0.106 R)
• M2: 682,914 km (0.096 R)
• M3: 1,213,239 km (0.106 R)
• M4: 1,726,060 km (0.063 R)
• M5: 2,581,461 km (0.111 R)
• M6: 3,070,795 km (0.044 R)
• M7: 3,645,999 km (0.068 R)
• M8: 4,630,204 km (0.049 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.1

Radius: 9.1

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.27 AU - 1.43 AU

Year: 1103 Days

Day: 7 Hours

Environment

Temp: -177 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 77,419,022 km

• M1: 113,246 km (0.052 R)
• M2: 441,463 km (0.036 R)
• M3: 792,121 km (0.081 R)
• M4: 1,111,961 km (0.103 R)
• M5: 1,934,151 km (0.059 R)
• M6: 2,348,986 km (0.025 R)
• M7: 2,854,028 km (0.09 R)
• M8: 3,183,891 km (0.063 R)
• M9: 3,855,436 km (0.056 R)
• M10: 4,429,593 km (0.114 R)
• M11: 5,765,203 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.7

Radius: 12

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 2.35 AU - 2.43 AU

Year: 2597 Days

Day: 10 Hours

Environment

Temp: -207 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 77,419,022 km

• M1: 151,094 km (0.117 R)
• M2: 689,796 km (0.109 R)
• M3: 1,118,693 km (0.109 R)
• M4: 2,415,108 km (0.032 R)
• M5: 2,899,057 km (0.119 R)
• M6: 3,927,692 km (0.071 R)
• M7: 4,798,202 km (0.064 R)
• M8: 6,612,076 km (0.047 R)
• M9: 7,064,011 km (0.036 R)
• M10: 10,525,108 km (0.062 R)
• M11: 12,073,147 km (0.12 R)
• M12: 13,054,359 km (0.114 R)
• M13: 17,251,926 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300

Radius: 11.5

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 2.32 AU - 2.7 AU

Year: 2795 Days

Day: 5.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 77,419,022 km

• M1: 143,016 km (0.118 R)
• M2: 593,455 km (0.06 R)
• M3: 1,764,357 km (0.102 R)
• M4: 2,152,414 km (0.056 R)
• M5: 2,652,669 km (0.086 R)
• M6: 3,074,236 km (0.08 R)
• M7: 3,591,396 km (0.108 R)
• M8: 4,147,152 km (0.089 R)
• M9: 4,515,612 km (0.032 R)
• M10: 5,077,202 km (0.092 R)
• M11: 6,067,540 km (0.045 R)
• M12: 6,441,834 km (0.066 R)
• M13: 7,127,441 km (0.066 R)
• M14: 8,397,976 km (0.096 R)
• M15: 9,379,936 km (0.1 R)
• M16: 11,234,052 km (0.096 R)
• M17: 12,665,554 km (0.06 R)
• M18: 13,869,967 km (0.101 R)
• M19: 15,103,700 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.5

Radius: 8.9

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 3.64 AU - 5.84 AU

Year: 7254 Days

Day: 5.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 77,419,022 km

• M1: 110,702 km (0.104 R)
• M2: 568,771 km (0.092 R)
• M3: 1,530,685 km (0.099 R)
• M4: 3,799,038 km (0.106 R)
• M5: 6,639,004 km (0.071 R)
• M6: 7,599,123 km (0.066 R)
• M7: 8,730,382 km (0.044 R)
• M8: 10,240,573 km (0.093 R)
• M9: 12,428,890 km (0.08 R)
• M10: 14,970,109 km (0.108 R)
• M11: 15,505,071 km (0.106 R)
• M12: 20,325,264 km (0.118 R)
• M13: 22,335,411 km (0.112 R)
• M14: 22,799,463 km (0.104 R)
• M15: 24,149,435 km (0.112 R)
• M16: 32,886,100 km (0.086 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 232.7

Radius: 7

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 5.27 AU - 5.67 AU

Year: 8993 Days

Day: 16.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 77,419,022 km

• M1: 87,066 km (0.12 R)
• M2: 310,416 km (0.118 R)
• M3: 566,826 km (0.104 R)
• M4: 821,592 km (0.111 R)
• M5: 1,778,719 km (0.08 R)
• M6: 2,994,800 km (0.102 R)
• M7: 3,272,154 km (0.059 R)
• M8: 3,566,563 km (0.066 R)
• M9: 4,356,140 km (0.106 R)
• M10: 4,898,732 km (0.114 R)
• M11: 8,347,711 km (0.1 R)
• M12: 14,272,834 km (0.084 R)
• M13: 16,236,156 km (0.107 R)
• M14: 17,094,549 km (0.045 R)
• M15: 18,569,883 km (0.076 R)
• M16: 26,392,954 km (0.107 R)
• M17: 27,923,340 km (0.074 R)
• M18: 29,692,036 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 628.3

Radius: 3.1

Gravity: 65.38 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 8.75 AU - 10.77 AU

Year: 21433 Days

Day: 15.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 77,419,022 km

• M1: 38,596 km (0.083 R)
• M2: 765,492 km (0.096 R)
• M3: 1,462,319 km (0.081 R)
• M4: 1,985,014 km (0.036 R)
• M5: 3,106,849 km (0.096 R)
• M6: 3,832,398 km (0.091 R)
• M7: 7,089,892 km (0.076 R)
• M8: 7,768,617 km (0.03 R)
• M9: 8,331,554 km (0.085 R)
• M10: 8,542,786 km (0.06 R)
• M11: 14,293,628 km (0.051 R)
• M12: 18,659,492 km (0.069 R)
• M13: 18,839,757 km (0.097 R)
• M14: 22,692,052 km (0.06 R)
• M15: 39,955,198 km (0.093 R)
• M16: 45,575,440 km (0.108 R)
• M17: 53,312,343 km (0.042 R)
• M18: 64,104,632 km (0.119 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 207 - 18,976 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit