🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.44

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.44 AU - 0.58 AU

Year: 135 Days

Day: 41.5 Hours

Environment

Temp: 252 °C

Axial Tilt: 21.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.58 AU - 0.94 AU

Year: 246 Days

Day: 44.6 Hours

Environment

Temp: 171 °C

Axial Tilt: 20.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.63

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.64 AU - 1.92 AU

Year: 881 Days

Day: 24.1 Hours

Environment

Temp: -61 °C

Axial Tilt: 36.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.52 AU - 2.48 AU

Year: 1049 Days

Day: 43.1 Hours

Environment

Temp: -77 °C

Axial Tilt: 4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,884,968 km

• M1: 29,471 km (0.09 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 2.08 AU - 2.7 AU

Year: 1370 Days

Day: 24.1 Hours

Environment

Temp: -87 °C

Axial Tilt: 29.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.02

Radius: 1.32

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 2.94 AU - 3.4 AU

Year: 2093 Days

Day: 24.7 Hours

Environment

Temp: -107 °C

Axial Tilt: 27 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,884,968 km

• M1: 31,116 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 826.5

Radius: 8.2

Gravity: 12.29 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 7.86 AU - 10.7 AU

Year: 10484 Days

Day: 8.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 70,884,968 km

• M1: 102,325 km (0.11 R)
• M2: 378,931 km (0.11 R)
• M3: 884,423 km (0.104 R)
• M4: 1,148,014 km (0.114 R)
• M5: 2,078,064 km (0.065 R)
• M6: 3,292,350 km (0.09 R)
• M7: 3,996,058 km (0.085 R)
• M8: 5,118,641 km (0.115 R)
• M9: 5,420,828 km (0.067 R)
• M10: 6,172,857 km (0.074 R)
• M11: 6,871,180 km (0.119 R)
• M12: 7,838,779 km (0.059 R)
• M13: 9,682,872 km (0.093 R)
• M14: 12,934,082 km (0.118 R)
• M15: 13,560,000 km (0.114 R)
• M16: 14,075,065 km (0.119 R)
• M17: 15,007,808 km (0.103 R)
• M18: 15,981,092 km (0.116 R)
• M19: 16,338,780 km (0.084 R)
• M20: 18,676,546 km (0.068 R)
• M21: 19,884,100 km (0.06 R)
• M22: 22,010,933 km (0.051 R)
• M23: 22,722,421 km (0.087 R)
• M24: 23,633,172 km (0.117 R)
• M25: 27,316,870 km (0.047 R)
• M26: 27,623,097 km (0.077 R)
• M27: 29,082,125 km (0.079 R)
• M28: 31,032,881 km (0.101 R)
• M29: 42,789,928 km (0.081 R)
• M30: 50,332,652 km (0.037 R)
• M31: 52,034,328 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 650.7

Radius: 3.2

Gravity: 63.54 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 12.33 AU - 18.81 AU

Year: 22784 Days

Day: 24.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 70,884,968 km

• M1: 39,793 km (0.114 R)
• M2: 184,305 km (0.084 R)
• M3: 331,808 km (0.099 R)
• M4: 581,637 km (0.072 R)
• M5: 682,465 km (0.085 R)
• M6: 1,253,780 km (0.118 R)
• M7: 1,392,008 km (0.109 R)
• M8: 1,907,672 km (0.074 R)
• M9: 5,337,502 km (0.086 R)
• M10: 5,619,046 km (0.076 R)
• M11: 8,890,302 km (0.111 R)
• M12: 9,751,687 km (0.112 R)
• M13: 10,233,242 km (0.096 R)
• M14: 15,623,702 km (0.114 R)
• M15: 17,742,307 km (0.118 R)
• M16: 18,549,538 km (0.095 R)
• M17: 20,625,208 km (0.119 R)
• M18: 23,484,323 km (0.104 R)
• M19: 24,676,169 km (0.093 R)
• M20: 25,680,868 km (0.119 R)
• M21: 34,718,524 km (0.087 R)
• M22: 34,857,052 km (0.085 R)
• M23: 35,555,225 km (0.073 R)
• M24: 37,414,128 km (0.07 R)
• M25: 44,674,263 km (0.1 R)
• M26: 48,373,219 km (0.054 R)
• M27: 50,652,193 km (0.106 R)
• M28: 52,089,679 km (0.103 R)
• M29: 60,684,675 km (0.087 R)
• M30: 63,332,857 km (0.102 R)
• M31: 63,747,093 km (0.097 R)
• M32: 67,555,855 km (0.073 R)
• M33: 74,465,930 km (0.089 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 283.7

Radius: 5.8

Gravity: 8.43 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 13.72 AU - 21.96 AU

Year: 27945 Days

Day: 20.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 70,884,968 km

• M1: 143,016 km (0.084 R)
• M2: 1,512,883 km (0.119 R)
• M3: 1,694,196 km (0.093 R)
• M4: 2,349,285 km (0.119 R)
• M5: 2,616,916 km (0.108 R)
• M6: 2,929,725 km (0.103 R)
• M7: 3,629,992 km (0.096 R)
• M8: 3,957,761 km (0.095 R)
• M9: 4,811,217 km (0.08 R)
• M10: 6,396,805 km (0.114 R)
• M11: 9,800,904 km (0.082 R)
• M12: 11,099,115 km (0.085 R)
• M13: 12,177,865 km (0.045 R)
• M14: 14,176,343 km (0.091 R)
• M15: 15,521,228 km (0.093 R)
• M16: 17,778,660 km (0.045 R)
• M17: 21,465,499 km (0.074 R)
• M18: 24,779,690 km (0.03 R)
• M19: 25,847,670 km (0.067 R)
• M20: 26,064,736 km (0.031 R)
• M21: 36,874,828 km (0.049 R)
• M22: 37,288,316 km (0.038 R)
• M23: 49,489,818 km (0.075 R)
• M24: 54,854,398 km (0.099 R)
• M25: 68,573,719 km (0.119 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 164 - 13,068 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit