🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.68

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.62 AU - 0.64 AU

Year: 328 Days

Day: 22.9 Hours

Environment

Temp: -122 °C

Axial Tilt: 36.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,937,874 km

• M1: 68,965 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299.1

Radius: 11.6

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.67 AU - 0.87 AU

Year: 443 Days

Day: 5.3 Hours

Environment

Temp: -151 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 75,937,874 km

• M1: 144,212 km (0.109 R)
• M2: 599,289 km (0.051 R)
• M3: 1,040,902 km (0.096 R)
• M4: 1,524,851 km (0.072 R)
• M5: 1,888,224 km (0.079 R)
• M6: 2,376,961 km (0.086 R)
• M7: 3,038,333 km (0.025 R)
• M8: 3,445,837 km (0.082 R)
• M9: 3,854,240 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268.3

Radius: 10.4

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.71 AU - 1.09 AU

Year: 560 Days

Day: 11 Hours

Environment

Temp: -156 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 75,937,874 km

• M1: 129,402 km (0.086 R)
• M2: 469,289 km (0.077 R)
• M3: 899,981 km (0.106 R)
• M4: 1,689,110 km (0.115 R)
• M5: 2,157,351 km (0.05 R)
• M6: 2,568,895 km (0.038 R)
• M7: 2,949,771 km (0.079 R)
• M8: 3,693,272 km (0.077 R)
• M9: 4,167,946 km (0.098 R)
• M10: 4,654,738 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.9

Radius: 10.5

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.15 AU - 1.21 AU

Year: 841 Days

Day: 14.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 75,937,874 km

• M1: 130,599 km (0.06 R)
• M2: 476,320 km (0.104 R)
• M3: 818,151 km (0.112 R)
• M4: 1,300,454 km (0.106 R)
• M5: 1,985,463 km (0.114 R)
• M6: 2,360,355 km (0.074 R)
• M7: 2,771,600 km (0.096 R)
• M8: 3,168,782 km (0.044 R)
• M9: 3,780,937 km (0.073 R)
• M10: 4,152,238 km (0.067 R)
• M11: 4,787,880 km (0.067 R)
• M12: 5,241,012 km (0.115 R)
• M13: 5,685,916 km (0.099 R)
• M14: 6,272,489 km (0.101 R)
• M15: 7,303,368 km (0.112 R)

Asteroid Belt

Center: 2.02 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.9

Radius: 14.2

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 2.83 AU - 2.87 AU

Year: 3156 Days

Day: 8.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 75,937,874 km

• M1: 177,722 km (0.082 R)
• M2: 1,311,973 km (0.091 R)
• M3: 2,110,676 km (0.04 R)
• M4: 2,703,682 km (0.09 R)
• M5: 3,622,512 km (0.1 R)
• M6: 4,699,916 km (0.101 R)
• M7: 9,003,249 km (0.118 R)
• M8: 9,920,134 km (0.11 R)
• M9: 12,288,867 km (0.116 R)
• M10: 13,879,242 km (0.058 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412.5

Radius: 9.6

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 2.95 AU - 3.71 AU

Year: 3986 Days

Day: 5.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,937,874 km

• M1: 119,529 km (0.037 R)
• M2: 436,078 km (0.096 R)
• M3: 1,402,929 km (0.076 R)
• M4: 2,227,961 km (0.091 R)
• M5: 2,607,042 km (0.046 R)
• M6: 3,115,076 km (0.043 R)
• M7: 5,519,862 km (0.085 R)
• M8: 6,706,921 km (0.118 R)
• M9: 9,996,728 km (0.097 R)
• M10: 11,836,782 km (0.089 R)
• M11: 16,442,900 km (0.113 R)
• M12: 16,988,185 km (0.043 R)
• M13: 18,696,592 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 518.1

Radius: 6.4

Gravity: 12.65 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 9.31 AU - 12.07 AU

Year: 22929 Days

Day: 15.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 75,937,874 km

• M1: 79,586 km (0.074 R)
• M2: 315,652 km (0.044 R)
• M3: 714,180 km (0.102 R)
• M4: 1,780,813 km (0.08 R)
• M5: 2,542,117 km (0.081 R)
• M6: 2,906,088 km (0.073 R)
• M7: 4,275,058 km (0.05 R)
• M8: 5,346,179 km (0.108 R)
• M9: 11,309,300 km (0.095 R)
• M10: 12,427,095 km (0.078 R)
• M11: 13,761,508 km (0.098 R)
• M12: 15,659,307 km (0.066 R)
• M13: 16,058,733 km (0.112 R)
• M14: 18,422,529 km (0.038 R)
• M15: 22,087,378 km (0.09 R)
• M16: 24,461,945 km (0.103 R)
• M17: 24,999,749 km (0.051 R)
• M18: 26,210,594 km (0.043 R)
• M19: 31,446,520 km (0.097 R)
• M20: 31,699,789 km (0.115 R)
• M21: 32,082,311 km (0.059 R)
• M22: 32,986,779 km (0.119 R)
• M23: 37,480,699 km (0.054 R)
• M24: 44,880,708 km (0.114 R)
• M25: 48,667,179 km (0.055 R)
• M26: 55,564,838 km (0.102 R)
• M27: 68,886,080 km (0.097 R)
• M28: 75,257,154 km (0.071 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 316 - 16,362 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit