🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.75

Radius: 1.25

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.54 AU - 0.84 AU

Year: 213 Days

Day: 40.1 Hours

Environment

Temp: 158 °C

Axial Tilt: 23.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.63 AU - 1.01 AU

Year: 275 Days

Day: 13.1 Hours

Environment

Temp: 89 °C

Axial Tilt: 10.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.64 AU - 2.68 AU

Year: 1177 Days

Day: 16 Hours

Environment

Temp: -88 °C

Axial Tilt: 38.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 3.06 AU - 3.8 AU

Year: 2356 Days

Day: 20.1 Hours

Environment

Temp: -108 °C

Axial Tilt: 0.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 9.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.1

Radius: 11.8

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 7.02 AU - 11.46 AU

Year: 10416 Days

Day: 7.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 105.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 48,099,368 km

• M1: 146,756 km (0.081 R)
• M2: 743,352 km (0.076 R)
• M3: 1,462,918 km (0.104 R)
• M4: 2,233,795 km (0.092 R)
• M5: 2,733,602 km (0.042 R)
• M6: 4,100,777 km (0.1 R)
• M7: 4,635,290 km (0.095 R)
• M8: 5,454,488 km (0.108 R)
• M9: 6,641,098 km (0.098 R)
• M10: 8,877,287 km (0.06 R)
• M11: 9,268,785 km (0.098 R)
• M12: 12,102,917 km (0.119 R)
• M13: 12,524,184 km (0.099 R)
• M14: 14,043,351 km (0.097 R)
• M15: 14,576,069 km (0.094 R)
• M16: 16,328,159 km (0.069 R)
• M17: 17,444,608 km (0.088 R)
• M18: 20,841,227 km (0.117 R)
• M19: 21,360,033 km (0.075 R)
• M20: 21,976,226 km (0.113 R)
• M21: 24,178,905 km (0.085 R)
• M22: 24,655,823 km (0.056 R)
• M23: 25,041,786 km (0.076 R)
• M24: 27,857,517 km (0.084 R)
• M25: 28,699,304 km (0.025 R)
• M26: 31,101,697 km (0.115 R)
• M27: 36,427,979 km (0.081 R)
• M28: 39,503,263 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.4

Radius: 14.8

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 6.99 AU - 11.57 AU

Year: 10484 Days

Day: 14.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 48,099,368 km

• M1: 192,832 km (0.095 R)
• M2: 1,066,932 km (0.084 R)
• M3: 1,619,247 km (0.082 R)
• M4: 2,421,092 km (0.048 R)
• M5: 3,048,954 km (0.048 R)
• M6: 5,141,080 km (0.086 R)
• M7: 5,859,599 km (0.049 R)
• M8: 6,528,152 km (0.076 R)
• M9: 8,107,606 km (0.068 R)
• M10: 9,475,380 km (0.12 R)
• M11: 10,240,722 km (0.083 R)
• M12: 11,722,340 km (0.036 R)
• M13: 14,769,947 km (0.098 R)
• M14: 19,258,781 km (0.057 R)
• M15: 24,774,903 km (0.109 R)
• M16: 26,926,270 km (0.119 R)
• M17: 27,738,587 km (0.074 R)
• M18: 33,423,306 km (0.119 R)
• M19: 34,480,215 km (0.097 R)
• M20: 39,190,304 km (0.103 R)
• M21: 40,497,789 km (0.114 R)
• M22: 48,809,746 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.3

Radius: 11.5

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 7.57 AU - 12.39 AU

Year: 11692 Days

Day: 5.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,099,368 km

• M1: 143,016 km (0.057 R)
• M2: 883,375 km (0.11 R)
• M3: 1,699,731 km (0.097 R)
• M4: 5,924,375 km (0.091 R)
• M5: 6,355,965 km (0.088 R)
• M6: 7,991,967 km (0.09 R)
• M7: 9,793,275 km (0.054 R)
• M8: 10,868,435 km (0.118 R)
• M9: 11,851,143 km (0.09 R)
• M10: 15,965,683 km (0.051 R)
• M11: 16,451,427 km (0.045 R)
• M12: 17,452,536 km (0.108 R)
• M13: 18,569,733 km (0.098 R)
• M14: 21,111,700 km (0.079 R)
• M15: 25,346,816 km (0.034 R)
• M16: 28,566,910 km (0.107 R)
• M17: 31,831,435 km (0.049 R)
• M18: 32,935,467 km (0.075 R)
• M19: 37,001,089 km (0.096 R)
• M20: 37,852,600 km (0.096 R)
• M21: 41,129,840 km (0.106 R)
• M22: 41,912,237 km (0.099 R)
• M23: 43,506,651 km (0.072 R)
• M24: 46,393,591 km (0.043 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 180 - 11,221 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit