🌌 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: 4.72

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.47 AU - 0.69 AU

Year: 165 Days

Day: 25.8 Hours

Environment

Temp: 150 °C

Axial Tilt: 15.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 84,771,479 km

• M1: 212,279 km (0.051 R)
• M2: 397,332 km (0.112 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.33 AU - 1.57 AU

Year: 651 Days

Day: 45.7 Hours

Environment

Temp: -32 °C

Axial Tilt: 10.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.92 AU - 3.16 AU

Year: 1976 Days

Day: 13.2 Hours

Environment

Temp: -107 °C

Axial Tilt: 10.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,771,479 km

• M1: 536,009 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.1

Radius: 14.1

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 3.57 AU - 5.77 AU

Year: 3762 Days

Day: 11.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 84,771,479 km

• M1: 175,478 km (0.027 R)
• M2: 630,555 km (0.112 R)
• M3: 1,233,135 km (0.062 R)
• M4: 2,039,917 km (0.109 R)
• M5: 3,106,250 km (0.074 R)
• M6: 3,714,814 km (0.067 R)
• M7: 5,148,112 km (0.102 R)
• M8: 6,408,922 km (0.104 R)
• M9: 8,782,891 km (0.115 R)
• M10: 9,343,285 km (0.118 R)
• M11: 9,808,684 km (0.091 R)
• M12: 10,912,865 km (0.104 R)
• M13: 12,098,429 km (0.096 R)
• M14: 16,731,026 km (0.059 R)
• M15: 20,105,206 km (0.069 R)
• M16: 21,014,910 km (0.058 R)
• M17: 22,293,224 km (0.102 R)
• M18: 22,846,736 km (0.09 R)
• M19: 23,909,330 km (0.092 R)
• M20: 24,635,777 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.3

Radius: 9.3

Gravity: 9.97 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 5.65 AU - 6.29 AU

Year: 5438 Days

Day: 11.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 81.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 84,771,479 km

• M1: 125,513 km (0.108 R)
• M2: 429,346 km (0.113 R)
• M3: 1,052,870 km (0.076 R)
• M4: 1,454,390 km (0.103 R)
• M5: 1,814,323 km (0.066 R)
• M6: 2,716,548 km (0.099 R)
• M7: 3,226,228 km (0.031 R)
• M8: 4,233,321 km (0.1 R)
• M9: 5,739,921 km (0.09 R)
• M10: 10,312,978 km (0.09 R)
• M11: 10,873,222 km (0.108 R)
• M12: 11,552,546 km (0.103 R)
• M13: 12,782,390 km (0.049 R)
• M14: 16,738,955 km (0.116 R)
• M15: 17,776,266 km (0.099 R)
• M16: 23,216,094 km (0.108 R)
• M17: 24,097,225 km (0.092 R)
• M18: 25,502,697 km (0.071 R)
• M19: 26,527,143 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.5

Radius: 10

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 5.71 AU - 7.63 AU

Year: 6422 Days

Day: 6.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 84,771,479 km

• M1: 126,560 km (0.119 R)
• M2: 713,283 km (0.101 R)
• M3: 1,037,760 km (0.106 R)
• M4: 2,409,573 km (0.084 R)
• M5: 3,129,438 km (0.111 R)
• M6: 3,742,490 km (0.054 R)
• M7: 4,784,140 km (0.119 R)
• M8: 6,694,206 km (0.096 R)
• M9: 7,022,722 km (0.074 R)
• M10: 12,141,064 km (0.087 R)
• M11: 15,111,330 km (0.111 R)
• M12: 17,157,679 km (0.092 R)
• M13: 18,342,644 km (0.085 R)
• M14: 22,297,563 km (0.097 R)
• M15: 22,736,632 km (0.047 R)
• M16: 23,859,664 km (0.104 R)
• M17: 24,784,328 km (0.048 R)
• M18: 25,572,858 km (0.085 R)
• M19: 26,951,852 km (0.119 R)
• M20: 27,701,636 km (0.081 R)
• M21: 28,294,343 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.2

Radius: 10.2

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 6.03 AU - 7.45 AU

Year: 6523 Days

Day: 11 Hours

Environment

Temp: -150 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,771,479 km

• M1: 156,479 km (0.08 R)
• M2: 695,481 km (0.096 R)
• M3: 1,107,922 km (0.088 R)
• M4: 1,553,873 km (0.086 R)
• M5: 1,881,343 km (0.083 R)
• M6: 2,692,313 km (0.069 R)
• M7: 3,367,747 km (0.118 R)
• M8: 4,206,692 km (0.079 R)
• M9: 4,675,532 km (0.104 R)
• M10: 5,326,283 km (0.103 R)
• M11: 5,785,548 km (0.116 R)
• M12: 6,342,501 km (0.062 R)
• M13: 10,100,549 km (0.049 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 370

Radius: 5

Gravity: 14.8 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 17.57 AU - 21.35 AU

Year: 32001 Days

Day: 18.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 84,771,479 km

• M1: 62,233 km (0.034 R)
• M2: 294,558 km (0.104 R)
• M3: 493,224 km (0.08 R)
• M4: 1,692,700 km (0.075 R)
• M5: 3,024,121 km (0.1 R)
• M6: 4,113,941 km (0.115 R)
• M7: 5,125,821 km (0.032 R)
• M8: 11,233,005 km (0.054 R)
• M9: 14,232,741 km (0.102 R)
• M10: 17,726,450 km (0.074 R)
• M11: 20,842,574 km (0.107 R)
• M12: 25,086,067 km (0.109 R)
• M13: 27,528,551 km (0.078 R)
• M14: 48,497,835 km (0.1 R)
• M15: 56,036,071 km (0.046 R)
• M16: 68,639,243 km (0.079 R)
• M17: 81,263,209 km (0.093 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 426 - 18,323 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit