🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.58 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.4

Radius: 11.8

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.14 AU - 1.16 AU

Year: 796 Days

Day: 13.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 34,250,823 km

• M1: 146,756 km (0.049 R)
• M2: 593,455 km (0.109 R)
• M3: 1,154,746 km (0.078 R)
• M4: 1,713,793 km (0.073 R)
• M5: 2,618,711 km (0.115 R)
• M6: 3,344,410 km (0.11 R)
• M7: 3,861,271 km (0.06 R)
• M8: 5,142,726 km (0.111 R)
• M9: 5,758,321 km (0.056 R)
• M10: 7,672,725 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 218.6

Radius: 14.2

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.27 AU - 1.83 AU

Year: 1246 Days

Day: 9.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 34,250,823 km

• M1: 176,974 km (0.098 R)
• M2: 629,209 km (0.093 R)
• M3: 1,580,651 km (0.102 R)
• M4: 4,814,359 km (0.062 R)
• M5: 6,201,281 km (0.12 R)
• M6: 7,863,612 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.9

Radius: 9.9

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.22 AU - 1.94 AU

Year: 1282 Days

Day: 5.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 34,250,823 km

• M1: 129,701 km (0.107 R)
• M2: 590,612 km (0.036 R)
• M3: 967,150 km (0.069 R)
• M4: 1,349,822 km (0.079 R)
• M5: 2,011,643 km (0.112 R)
• M6: 2,582,508 km (0.119 R)
• M7: 3,120,312 km (0.053 R)
• M8: 4,047,071 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210

Radius: 12

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.2 AU - 2.38 AU

Year: 2238 Days

Day: 10.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,250,823 km

• M1: 149,448 km (0.102 R)
• M2: 560,543 km (0.112 R)
• M3: 942,317 km (0.068 R)
• M4: 1,316,760 km (0.092 R)
• M5: 2,192,955 km (0.113 R)
• M6: 2,589,689 km (0.073 R)
• M7: 3,062,568 km (0.104 R)
• M8: 3,561,925 km (0.093 R)
• M9: 4,218,510 km (0.049 R)
• M10: 5,032,772 km (0.06 R)
• M11: 5,861,095 km (0.088 R)
• M12: 6,778,280 km (0.117 R)
• M13: 8,002,439 km (0.093 R)
• M14: 8,497,757 km (0.039 R)
• M15: 9,888,120 km (0.084 R)
• M16: 10,362,345 km (0.036 R)
• M17: 11,220,289 km (0.067 R)
• M18: 11,736,551 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.5

Radius: 14.4

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.22 AU - 2.46 AU

Year: 2311 Days

Day: 5.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 34,250,823 km

• M1: 186,848 km (0.062 R)
• M2: 728,691 km (0.069 R)
• M3: 1,791,883 km (0.118 R)
• M4: 2,256,385 km (0.113 R)
• M5: 3,538,887 km (0.098 R)
• M6: 5,521,059 km (0.088 R)
• M7: 6,845,748 km (0.097 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 978.2

Radius: 6.8

Gravity: 21.15 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 6.32 AU - 6.5 AU

Year: 10479 Days

Day: 24.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 34,250,823 km

• M1: 86,916 km (0.034 R)
• M2: 387,758 km (0.036 R)
• M3: 1,203,515 km (0.059 R)
• M4: 1,497,475 km (0.041 R)
• M5: 2,119,203 km (0.107 R)
• M6: 3,459,451 km (0.09 R)
• M7: 6,081,153 km (0.091 R)
• M8: 7,503,680 km (0.116 R)
• M9: 7,812,749 km (0.095 R)
• M10: 8,362,371 km (0.086 R)
• M11: 9,184,711 km (0.078 R)
• M12: 12,214,965 km (0.116 R)
• M13: 17,799,903 km (0.102 R)
• M14: 20,837,787 km (0.119 R)
• M15: 22,072,119 km (0.108 R)
• M16: 24,588,804 km (0.093 R)
• M17: 27,916,907 km (0.116 R)
• M18: 28,339,671 km (0.086 R)
• M19: 29,633,543 km (0.048 R)
• M20: 34,230,835 km (0.07 R)
• M21: 37,846,466 km (0.115 R)
• M22: 49,123,752 km (0.114 R)
• M23: 54,362,370 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 219.3

Radius: 7.2

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 6.13 AU - 6.85 AU

Year: 10675 Days

Day: 15.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 34,250,823 km

• M1: 93,349 km (0.086 R)
• M2: 362,775 km (0.062 R)
• M3: 725,250 km (0.096 R)
• M4: 1,978,881 km (0.115 R)
• M5: 4,084,022 km (0.12 R)
• M6: 4,647,707 km (0.096 R)
• M7: 6,824,056 km (0.116 R)
• M8: 11,360,761 km (0.11 R)
• M9: 11,706,781 km (0.067 R)
• M10: 15,144,840 km (0.086 R)
• M11: 15,503,725 km (0.111 R)
• M12: 22,046,238 km (0.107 R)
• M13: 25,494,469 km (0.081 R)
• M14: 31,947,523 km (0.063 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 290 - 11,343 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit