🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.7

Radius: 0.87

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.41 AU - 0.65 AU

Year: 245 Days

Day: 26.3 Hours

Environment

Temp: -122 °C

Axial Tilt: 6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 655.9

Radius: 14.3

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.71 AU - 0.89 AU

Year: 455 Days

Day: 13.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,154,893 km

• M1: 177,872 km (0.055 R)
• M2: 642,373 km (0.118 R)
• M3: 1,439,880 km (0.117 R)
• M4: 1,982,920 km (0.063 R)
• M5: 2,642,946 km (0.073 R)
• M6: 3,136,020 km (0.056 R)
• M7: 4,269,374 km (0.084 R)
• M8: 5,000,010 km (0.1 R)
• M9: 5,593,464 km (0.059 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.3

Radius: 12

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.92 AU - 2.28 AU

Year: 1935 Days

Day: 13.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,154,893 km

• M1: 149,747 km (0.102 R)
• M2: 559,047 km (0.096 R)
• M3: 971,189 km (0.08 R)
• M4: 1,349,074 km (0.069 R)
• M5: 2,486,017 km (0.114 R)
• M6: 3,168,632 km (0.055 R)
• M7: 4,574,553 km (0.081 R)
• M8: 5,602,141 km (0.106 R)
• M9: 6,698,095 km (0.064 R)
• M10: 11,178,701 km (0.112 R)
• M11: 12,420,214 km (0.071 R)
• M12: 14,099,001 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.3

Radius: 14.4

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.26 AU - 2.28 AU

Year: 2175 Days

Day: 8.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 76 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,154,893 km

• M1: 179,069 km (0.075 R)
• M2: 644,916 km (0.097 R)
• M3: 1,584,092 km (0.034 R)
• M4: 2,031,988 km (0.041 R)
• M5: 3,306,113 km (0.108 R)
• M6: 3,942,353 km (0.069 R)
• M7: 4,659,525 km (0.105 R)
• M8: 5,508,493 km (0.072 R)
• M9: 7,122,953 km (0.082 R)
• M10: 8,778,553 km (0.057 R)
• M11: 11,007,411 km (0.061 R)
• M12: 11,918,911 km (0.086 R)
• M13: 12,594,495 km (0.099 R)
• M14: 13,421,921 km (0.108 R)
• M15: 13,892,257 km (0.085 R)
• M16: 14,462,374 km (0.08 R)
• M17: 15,462,735 km (0.068 R)
• M18: 16,027,617 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.5

Radius: 14.8

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 4.54 AU - 6 AU

Year: 7692 Days

Day: 12.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,154,893 km

• M1: 184,005 km (0.053 R)
• M2: 930,648 km (0.076 R)
• M3: 1,470,248 km (0.034 R)
• M4: 2,719,689 km (0.081 R)
• M5: 3,532,305 km (0.067 R)
• M6: 5,964,467 km (0.027 R)
• M7: 7,530,607 km (0.109 R)
• M8: 9,770,387 km (0.103 R)
• M9: 10,715,247 km (0.102 R)
• M10: 11,336,227 km (0.08 R)
• M11: 12,334,943 km (0.05 R)
• M12: 14,408,519 km (0.084 R)
• M13: 15,685,337 km (0.067 R)
• M14: 17,203,755 km (0.077 R)
• M15: 18,463,968 km (0.102 R)
• M16: 21,232,426 km (0.086 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 502.4

Radius: 7.7

Gravity: 8.47 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 6.59 AU - 10.01 AU

Year: 15204 Days

Day: 22.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 57,154,893 km

• M1: 96,042 km (0.065 R)
• M2: 417,528 km (0.064 R)
• M3: 1,206,357 km (0.032 R)
• M4: 1,473,090 km (0.106 R)
• M5: 1,948,063 km (0.119 R)
• M6: 3,402,903 km (0.113 R)
• M7: 5,470,495 km (0.085 R)
• M8: 6,327,541 km (0.111 R)
• M9: 6,974,402 km (0.119 R)
• M10: 8,833,305 km (0.117 R)
• M11: 10,223,967 km (0.031 R)
• M12: 10,943,234 km (0.105 R)
• M13: 11,577,828 km (0.055 R)
• M14: 11,994,159 km (0.115 R)
• M15: 14,026,147 km (0.058 R)
• M16: 18,037,015 km (0.089 R)
• M17: 18,435,694 km (0.109 R)
• M18: 19,333,430 km (0.095 R)
• M19: 20,174,619 km (0.096 R)
• M20: 21,040,043 km (0.103 R)
• M21: 22,937,393 km (0.069 R)
• M22: 24,167,536 km (0.093 R)
• M23: 25,640,925 km (0.059 R)
• M24: 26,043,793 km (0.076 R)
• M25: 28,657,567 km (0.109 R)
• M26: 28,982,643 km (0.069 R)
• M27: 35,385,132 km (0.073 R)
• M28: 37,025,323 km (0.117 R)
• M29: 37,799,044 km (0.087 R)
• M30: 45,109,144 km (0.051 R)
• M31: 48,248,455 km (0.064 R)
• M32: 55,628,118 km (0.103 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 408 - 19,679 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit