🌌 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: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.92

Radius: 0.97

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.56 AU - 0.6 AU

Year: 166 Days

Day: 45.8 Hours

Environment

Temp: 155 °C

Axial Tilt: 10.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.32

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.91 AU - 1.15 AU

Year: 394 Days

Day: 36.7 Hours

Environment

Temp: 22 °C

Axial Tilt: 19.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.44 AU - 2.04 AU

Year: 865 Days

Day: 32.5 Hours

Environment

Temp: -69 °C

Axial Tilt: 29.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 20,222,318 km

• M1: 60,288 km (0.088 R)

Asteroid Belt

Center: 3.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432.9

Radius: 14.2

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 3.92 AU - 5.78 AU

Year: 4024 Days

Day: 6.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 20,222,318 km

• M1: 176,525 km (0.056 R)
• M2: 649,404 km (0.115 R)
• M3: 1,130,212 km (0.1 R)
• M4: 1,665,174 km (0.118 R)
• M5: 2,203,427 km (0.104 R)
• M6: 2,682,888 km (0.116 R)
• M7: 3,127,194 km (0.048 R)
• M8: 3,757,450 km (0.033 R)
• M9: 4,471,630 km (0.099 R)
• M10: 5,300,103 km (0.064 R)
• M11: 5,791,532 km (0.11 R)
• M12: 6,370,027 km (0.12 R)
• M13: 7,170,525 km (0.104 R)
• M14: 7,643,554 km (0.109 R)
• M15: 8,548,022 km (0.069 R)
• M16: 9,336,852 km (0.058 R)
• M17: 10,570,436 km (0.115 R)
• M18: 11,143,246 km (0.091 R)
• M19: 12,085,114 km (0.034 R)
• M20: 12,940,814 km (0.083 R)
• M21: 13,454,384 km (0.112 R)
• M22: 16,500,047 km (0.106 R)
• M23: 18,125,577 km (0.101 R)
• M24: 18,710,206 km (0.119 R)
• M25: 19,489,012 km (0.116 R)
• M26: 20,477,106 km (0.091 R)
• M27: 20,919,766 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.7

Radius: 13.4

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 4.55 AU - 5.77 AU

Year: 4416 Days

Day: 8.4 Hours

Environment

Temp: -144 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 20,222,318 km

• M1: 166,802 km (0.118 R)
• M2: 600,336 km (0.075 R)
• M3: 1,520,513 km (0.116 R)
• M4: 2,669,125 km (0.092 R)
• M5: 3,318,380 km (0.042 R)
• M6: 5,048,629 km (0.113 R)
• M7: 5,593,315 km (0.083 R)
• M8: 7,172,171 km (0.057 R)
• M9: 7,924,349 km (0.081 R)
• M10: 9,305,736 km (0.097 R)
• M11: 10,765,512 km (0.074 R)
• M12: 12,712,677 km (0.081 R)
• M13: 13,545,040 km (0.092 R)
• M14: 14,789,844 km (0.106 R)
• M15: 15,318,224 km (0.113 R)
• M16: 15,859,319 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521

Radius: 10.8

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 6.22 AU - 9.56 AU

Year: 8349 Days

Day: 5.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 154.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 20,222,318 km

• M1: 134,488 km (0.118 R)
• M2: 662,120 km (0.096 R)
• M3: 1,167,761 km (0.031 R)
• M4: 1,523,654 km (0.066 R)
• M5: 1,938,040 km (0.086 R)
• M6: 3,405,147 km (0.12 R)
• M7: 4,277,602 km (0.088 R)
• M8: 4,966,949 km (0.109 R)
• M9: 6,154,606 km (0.088 R)
• M10: 7,331,792 km (0.116 R)
• M11: 7,914,027 km (0.118 R)
• M12: 8,277,998 km (0.098 R)
• M13: 10,653,762 km (0.117 R)
• M14: 11,098,217 km (0.105 R)
• M15: 12,344,218 km (0.05 R)
• M16: 14,088,679 km (0.089 R)
• M17: 14,504,411 km (0.083 R)
• M18: 15,050,743 km (0.049 R)
• M19: 15,800,527 km (0.099 R)
• M20: 17,578,797 km (0.114 R)
• M21: 20,452,871 km (0.079 R)
• M22: 21,140,274 km (0.089 R)
• M23: 23,626,441 km (0.108 R)
• M24: 25,680,419 km (0.044 R)
• M25: 26,212,090 km (0.114 R)
• M26: 26,660,585 km (0.053 R)
• M27: 37,419,963 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 23.1

Radius: 12

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 9.99 AU - 13.25 AU

Year: 14922 Days

Day: 10.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,222,318 km

• M1: 150,196 km (0.119 R)
• M2: 1,216,231 km (0.116 R)
• M3: 2,027,650 km (0.057 R)
• M4: 4,065,771 km (0.091 R)
• M5: 6,377,656 km (0.119 R)
• M6: 8,054,649 km (0.093 R)
• M7: 9,896,498 km (0.103 R)
• M8: 11,015,639 km (0.115 R)
• M9: 12,651,492 km (0.109 R)
• M10: 19,567,102 km (0.103 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 474 - 14,876 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit