🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.95

Radius: 0.98

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.55 AU - 0.59 AU

Year: 160 Days

Day: 40.1 Hours

Environment

Temp: 215 °C

Axial Tilt: 3.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.56 AU - 0.78 AU

Year: 203 Days

Day: 27.8 Hours

Environment

Temp: 193 °C

Axial Tilt: 15.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 65,584,869 km

• M1: 22,290 km (0.037 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.31

Radius: 0.63

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.67 AU - 1.01 AU

Year: 286 Days

Day: 22.1 Hours

Environment

Temp: 104 °C

Axial Tilt: 32.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 65,584,869 km

• M1: 37,998 km (0.089 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.64

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 2.7 AU - 2.92 AU

Year: 1747 Days

Day: 32.7 Hours

Environment

Temp: -98 °C

Axial Tilt: 12.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.57 AU - 4.21 AU

Year: 2315 Days

Day: 36.4 Hours

Environment

Temp: -123 °C

Axial Tilt: 44.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589.1

Radius: 13.8

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 4.42 AU - 7.26 AU

Year: 5234 Days

Day: 9.9 Hours

Environment

Temp: -149 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 65,584,869 km

• M1: 172,636 km (0.061 R)
• M2: 688,898 km (0.051 R)
• M3: 1,338,602 km (0.096 R)
• M4: 2,782,820 km (0.045 R)
• M5: 3,894,930 km (0.086 R)
• M6: 4,479,409 km (0.052 R)
• M7: 5,068,376 km (0.108 R)
• M8: 5,593,614 km (0.059 R)
• M9: 7,814,993 km (0.105 R)
• M10: 8,291,761 km (0.098 R)
• M11: 9,103,330 km (0.083 R)
• M12: 9,631,709 km (0.111 R)
• M13: 10,929,920 km (0.106 R)
• M14: 11,527,414 km (0.085 R)
• M15: 12,390,743 km (0.055 R)
• M16: 13,142,771 km (0.09 R)
• M17: 14,627,829 km (0.116 R)
• M18: 16,939,864 km (0.044 R)
• M19: 18,119,444 km (0.096 R)
• M20: 19,286,756 km (0.072 R)
• M21: 20,711,376 km (0.078 R)
• M22: 22,059,702 km (0.103 R)
• M23: 24,229,619 km (0.067 R)
• M24: 24,852,395 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 773.5

Radius: 10.9

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 5.55 AU - 6.75 AU

Year: 5656 Days

Day: 5.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 65,584,869 km

• M1: 135,536 km (0.061 R)
• M2: 582,534 km (0.058 R)
• M3: 1,035,367 km (0.115 R)
• M4: 1,448,556 km (0.072 R)
• M5: 2,295,430 km (0.109 R)
• M6: 4,259,650 km (0.106 R)
• M7: 5,255,224 km (0.066 R)
• M8: 6,043,156 km (0.115 R)
• M9: 6,566,000 km (0.11 R)
• M10: 10,686,075 km (0.05 R)
• M11: 11,305,560 km (0.068 R)
• M12: 12,826,821 km (0.065 R)
• M13: 14,138,644 km (0.066 R)
• M14: 14,769,050 km (0.042 R)
• M15: 17,610,063 km (0.068 R)
• M16: 18,746,408 km (0.097 R)
• M17: 19,089,735 km (0.066 R)
• M18: 20,870,100 km (0.117 R)
• M19: 24,923,155 km (0.03 R)
• M20: 25,422,213 km (0.118 R)
• M21: 29,565,177 km (0.092 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.1

Radius: 8.8

Gravity: 12.86 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 9.29 AU - 12.43 AU

Year: 13272 Days

Day: 10.8 Hours

Environment

Temp: -174 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 65,584,869 km

• M1: 129,103 km (0.042 R)
• M2: 419,921 km (0.103 R)
• M3: 751,131 km (0.113 R)
• M4: 1,398,142 km (0.092 R)
• M5: 2,078,962 km (0.072 R)
• M6: 3,759,245 km (0.12 R)
• M7: 5,801,705 km (0.099 R)
• M8: 7,718,652 km (0.052 R)
• M9: 10,305,349 km (0.053 R)
• M10: 10,650,321 km (0.107 R)
• M11: 11,122,153 km (0.107 R)
• M12: 13,971,095 km (0.077 R)
• M13: 14,680,637 km (0.05 R)
• M14: 16,953,627 km (0.073 R)
• M15: 18,933,406 km (0.05 R)
• M16: 19,277,630 km (0.098 R)
• M17: 28,738,200 km (0.119 R)
• M18: 39,194,792 km (0.053 R)
• M19: 48,159,893 km (0.12 R)
• M20: 55,014,617 km (0.11 R)
• M21: 61,923,196 km (0.047 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 324 - 10,846 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit