🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.64 AU - 0.82 AU

Year: 220 Days

Day: 24.9 Hours

Environment

Temp: 151 °C

Axial Tilt: 48.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 54,420,603 km

• M1: 160,070 km (0.108 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.34

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.81 AU - 1.05 AU

Year: 317 Days

Day: 46.1 Hours

Environment

Temp: 100 °C

Axial Tilt: 4.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 54,420,603 km

• M1: 142,716 km (0.092 R)
• M2: 242,648 km (0.06 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.8

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.95 AU - 1.37 AU

Year: 441 Days

Day: 37.4 Hours

Environment

Temp: 29 °C

Axial Tilt: 7.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 54,420,603 km

• M1: 35,305 km (0.116 R)
• M2: 170,841 km (0.107 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.51

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.35 AU - 1.77 AU

Year: 688 Days

Day: 25.8 Hours

Environment

Temp: -36 °C

Axial Tilt: 44.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.62

Radius: 1.21

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.32 AU - 2.74 AU

Year: 1421 Days

Day: 22.5 Hours

Environment

Temp: -85 °C

Axial Tilt: 16 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.85

Radius: 1.28

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.77 AU - 3.05 AU

Year: 1753 Days

Day: 24.1 Hours

Environment

Temp: -87 °C

Axial Tilt: 38.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,420,603 km

• M1: 1,161,927 km (0.114 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.12

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 3.02 AU - 4.26 AU

Year: 2452 Days

Day: 40.1 Hours

Environment

Temp: -113 °C

Axial Tilt: 14.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,420,603 km

• M1: 2,601,058 km (0.099 R)

Planet 8 - Terrestrial

Semi-Major Axis: 4.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 3.81 AU - 5.21 AU

Year: 3382 Days

Day: 13.4 Hours

Environment

Temp: -121 °C

Axial Tilt: 26.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.8

Radius: 10.6

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 6.75 AU - 9.75 AU

Year: 8367 Days

Day: 14.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,420,603 km

• M1: 139,126 km (0.111 R)
• M2: 822,639 km (0.072 R)
• M3: 1,383,780 km (0.105 R)
• M4: 2,011,792 km (0.065 R)
• M5: 3,982,295 km (0.116 R)
• M6: 4,478,362 km (0.114 R)
• M7: 4,841,137 km (0.092 R)
• M8: 6,564,205 km (0.108 R)
• M9: 8,121,818 km (0.088 R)
• M10: 12,165,448 km (0.107 R)
• M11: 13,612,359 km (0.1 R)
• M12: 19,435,755 km (0.068 R)
• M13: 21,643,521 km (0.102 R)
• M14: 24,524,626 km (0.114 R)
• M15: 26,012,227 km (0.114 R)
• M16: 32,360,413 km (0.06 R)
• M17: 33,722,053 km (0.04 R)
• M18: 35,230,747 km (0.049 R)

Planet 10 - Gas Giant

Semi-Major Axis: 10.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 764.4

Radius: 13.1

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 7.87 AU - 12.47 AU

Year: 11452 Days

Day: 9.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,420,603 km

• M1: 165,904 km (0.104 R)
• M2: 740,659 km (0.113 R)
• M3: 2,429,918 km (0.032 R)
• M4: 3,332,143 km (0.082 R)
• M5: 4,328,016 km (0.07 R)
• M6: 5,173,394 km (0.061 R)
• M7: 6,585,448 km (0.043 R)
• M8: 7,880,367 km (0.084 R)
• M9: 10,317,167 km (0.091 R)
• M10: 12,118,475 km (0.053 R)
• M11: 14,055,468 km (0.064 R)
• M12: 15,620,411 km (0.106 R)
• M13: 19,500,382 km (0.112 R)
• M14: 20,162,352 km (0.098 R)
• M15: 26,610,469 km (0.094 R)
• M16: 30,188,402 km (0.094 R)
• M17: 33,249,324 km (0.103 R)
• M18: 33,719,659 km (0.051 R)
• M19: 35,401,289 km (0.118 R)
• M20: 36,886,497 km (0.116 R)
• M21: 50,143,261 km (0.066 R)
• M22: 51,073,611 km (0.115 R)

Kuiper Belt

Range: 31.1 - 49.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 365 - 14,070 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit