🌌 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: 3.97

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.42 AU - 0.64 AU

Year: 249 Days

Day: 15.3 Hours

Environment

Temp: -130 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,888,843 km

• M1: 83,924 km (0.099 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.04

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.53 AU - 0.73 AU

Year: 323 Days

Day: 36.6 Hours

Environment

Temp: -122 °C

Axial Tilt: 14.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 5

Radius: 1.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.56 AU - 0.7 AU

Year: 323 Days

Day: 31.6 Hours

Environment

Temp: -138 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.7

Radius: 9.2

Gravity: 7.45 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.02 AU - 1.02 AU

Year: 665 Days

Day: 9.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 50,888,843 km

• M1: 114,442 km (0.103 R)
• M2: 597,045 km (0.042 R)
• M3: 887,415 km (0.112 R)
• M4: 1,452,895 km (0.104 R)
• M5: 1,929,065 km (0.083 R)
• M6: 2,464,625 km (0.106 R)
• M7: 2,976,100 km (0.118 R)
• M8: 3,846,460 km (0.078 R)
• M9: 4,551,964 km (0.093 R)
• M10: 5,183,417 km (0.058 R)
• M11: 5,502,359 km (0.108 R)
• M12: 6,538,923 km (0.071 R)
• M13: 7,431,125 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.5

Radius: 13.9

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.97 AU - 1.23 AU

Year: 745 Days

Day: 5.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 50,888,843 km

• M1: 174,730 km (0.113 R)
• M2: 670,498 km (0.097 R)
• M3: 1,109,717 km (0.116 R)
• M4: 1,717,384 km (0.086 R)
• M5: 2,219,434 km (0.085 R)
• M6: 2,674,361 km (0.097 R)
• M7: 4,955,280 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 348.3

Radius: 13.9

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.28 AU - 1.58 AU

Year: 1104 Days

Day: 11.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 50,888,843 km

• M1: 172,935 km (0.117 R)
• M2: 606,619 km (0.048 R)
• M3: 1,213,538 km (0.11 R)
• M4: 1,796,820 km (0.077 R)
• M5: 2,250,102 km (0.077 R)
• M6: 2,887,089 km (0.089 R)
• M7: 3,421,752 km (0.096 R)
• M8: 3,947,289 km (0.102 R)
• M9: 4,493,920 km (0.119 R)
• M10: 5,270,931 km (0.105 R)
• M11: 5,975,687 km (0.098 R)
• M12: 6,549,993 km (0.1 R)
• M13: 7,597,328 km (0.044 R)
• M14: 8,753,420 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.6

Radius: 12.6

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 2.98 AU - 3.76 AU

Year: 3994 Days

Day: 6.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 50,888,843 km

• M1: 157,227 km (0.097 R)
• M2: 554,111 km (0.111 R)
• M3: 1,019,809 km (0.098 R)
• M4: 1,555,369 km (0.087 R)
• M5: 2,262,219 km (0.116 R)
• M6: 3,299,680 km (0.093 R)
• M7: 3,735,459 km (0.083 R)
• M8: 4,274,610 km (0.101 R)
• M9: 4,747,488 km (0.063 R)
• M10: 6,466,966 km (0.038 R)
• M11: 7,247,269 km (0.052 R)
• M12: 8,089,654 km (0.098 R)
• M13: 8,781,096 km (0.118 R)
• M14: 10,401,241 km (0.084 R)
• M15: 11,052,440 km (0.086 R)
• M16: 12,845,520 km (0.031 R)
• M17: 13,500,161 km (0.059 R)
• M18: 14,324,744 km (0.116 R)
• M19: 15,493,552 km (0.099 R)
• M20: 17,168,300 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 952.5

Radius: 8.8

Gravity: 12.3 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 5.56 AU - 6.26 AU

Year: 9277 Days

Day: 12.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 66.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 50,888,843 km

• M1: 109,506 km (0.114 R)
• M2: 452,234 km (0.097 R)
• M3: 794,065 km (0.081 R)
• M4: 1,453,194 km (0.089 R)
• M5: 2,105,291 km (0.112 R)
• M6: 2,744,672 km (0.059 R)
• M7: 3,457,805 km (0.104 R)
• M8: 4,767,684 km (0.098 R)
• M9: 5,149,458 km (0.081 R)
• M10: 6,157,000 km (0.104 R)
• M11: 6,571,834 km (0.105 R)
• M12: 7,712,219 km (0.076 R)
• M13: 8,603,972 km (0.038 R)
• M14: 9,414,792 km (0.09 R)
• M15: 10,223,518 km (0.12 R)
• M16: 12,447,291 km (0.117 R)
• M17: 13,483,406 km (0.041 R)
• M18: 16,005,775 km (0.084 R)
• M19: 19,062,808 km (0.115 R)
• M20: 21,021,942 km (0.099 R)
• M21: 24,299,781 km (0.114 R)
• M22: 26,697,834 km (0.038 R)
• M23: 28,210,119 km (0.061 R)
• M24: 30,965,263 km (0.088 R)
• M25: 32,860,818 km (0.12 R)
• M26: 40,560,171 km (0.111 R)
• M27: 41,218,253 km (0.106 R)
• M28: 47,902,585 km (0.091 R)
• M29: 50,130,994 km (0.051 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 265 - 17,061 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit