🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.1

Radius: 0.4

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.56 AU - 0.94 AU

Year: 246 Days

Day: 38.4 Hours

Environment

Temp: 87 °C

Axial Tilt: 12.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 55,116,314 km

• M1: 11,818 km (0.1 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.95

Radius: 0.98

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.81 AU - 0.85 AU

Year: 286 Days

Day: 19.3 Hours

Environment

Temp: 102 °C

Axial Tilt: 23.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.22

Radius: 1.08

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.17 AU - 1.17 AU

Year: 479 Days

Day: 34.8 Hours

Environment

Temp: -2 °C

Axial Tilt: 10 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1 AU - 1.48 AU

Year: 523 Days

Day: 15.7 Hours

Environment

Temp: -20 °C

Axial Tilt: 37 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.11 AU - 1.61 AU

Year: 601 Days

Day: 36.3 Hours

Environment

Temp: -46 °C

Axial Tilt: 34.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,116,314 km

• M1: 513,420 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 360.2

Radius: 13.7

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 4.49 AU - 6.57 AU

Year: 4925 Days

Day: 14.5 Hours

Environment

Temp: -162 °C

Axial Tilt: 135.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,116,314 km

• M1: 170,542 km (0.113 R)
• M2: 647,160 km (0.088 R)
• M3: 1,364,333 km (0.119 R)
• M4: 2,803,464 km (0.096 R)
• M5: 5,662,279 km (0.116 R)
• M6: 7,058,476 km (0.033 R)
• M7: 8,673,236 km (0.079 R)
• M8: 9,839,800 km (0.07 R)
• M9: 10,812,784 km (0.025 R)
• M10: 13,045,084 km (0.072 R)
• M11: 14,370,820 km (0.057 R)
• M12: 15,092,780 km (0.105 R)
• M13: 21,235,418 km (0.092 R)
• M14: 23,629,582 km (0.05 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 932

Radius: 14.3

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 6.49 AU - 7.55 AU

Year: 7045 Days

Day: 11 Hours

Environment

Temp: -170 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 55,116,314 km

• M1: 178,171 km (0.057 R)
• M2: 1,106,875 km (0.045 R)
• M3: 2,051,136 km (0.098 R)
• M4: 2,530,298 km (0.115 R)
• M5: 5,897,298 km (0.085 R)
• M6: 6,808,049 km (0.073 R)
• M7: 7,336,280 km (0.083 R)
• M8: 9,729,098 km (0.081 R)
• M9: 10,950,115 km (0.039 R)
• M10: 12,216,312 km (0.113 R)
• M11: 12,998,709 km (0.081 R)
• M12: 15,291,745 km (0.112 R)
• M13: 15,806,960 km (0.097 R)
• M14: 16,940,463 km (0.029 R)
• M15: 18,704,671 km (0.079 R)
• M16: 21,778,159 km (0.118 R)
• M17: 22,596,310 km (0.108 R)
• M18: 23,181,088 km (0.059 R)
• M19: 23,690,319 km (0.081 R)
• M20: 24,293,946 km (0.088 R)
• M21: 26,997,928 km (0.084 R)
• M22: 30,298,356 km (0.068 R)
• M23: 32,784,074 km (0.098 R)
• M24: 35,515,133 km (0.051 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 800.4

Radius: 13

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 8.79 AU - 10.57 AU

Year: 11407 Days

Day: 11.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 55,116,314 km

• M1: 161,715 km (0.03 R)
• M2: 1,083,687 km (0.114 R)
• M3: 2,437,996 km (0.111 R)
• M4: 3,446,735 km (0.12 R)
• M5: 4,939,273 km (0.105 R)
• M6: 6,587,542 km (0.106 R)
• M7: 7,844,314 km (0.101 R)
• M8: 15,114,770 km (0.065 R)
• M9: 17,289,176 km (0.09 R)
• M10: 20,758,949 km (0.063 R)
• M11: 21,804,638 km (0.069 R)
• M12: 22,702,524 km (0.108 R)
• M13: 23,160,742 km (0.113 R)
• M14: 25,348,162 km (0.108 R)
• M15: 29,475,119 km (0.065 R)
• M16: 34,872,610 km (0.094 R)
• M17: 35,976,343 km (0.052 R)
• M18: 37,484,140 km (0.077 R)
• M19: 38,382,924 km (0.031 R)
• M20: 41,301,429 km (0.118 R)
• M21: 42,398,430 km (0.093 R)
• M22: 46,098,135 km (0.111 R)
• M23: 49,699,405 km (0.103 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: 485 - 18,867 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit