🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.51 AU - 0.57 AU

Year: 140 Days

Day: 19.9 Hours

Environment

Temp: 192 °C

Axial Tilt: 45.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 77,684,200 km

• M1: 52,658 km (0.097 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.04

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.73 AU - 0.89 AU

Year: 257 Days

Day: 28.7 Hours

Environment

Temp: 132 °C

Axial Tilt: 32.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 77,684,200 km

• M1: 490,382 km (0.031 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.11

Radius: 0.41

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.66 AU - 1.7 AU

Year: 769 Days

Day: 22.9 Hours

Environment

Temp: -27 °C

Axial Tilt: 39.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.68

Radius: 0.86

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 2.99 AU - 4.17 AU

Year: 2392 Days

Day: 41.8 Hours

Environment

Temp: -101 °C

Axial Tilt: 20.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 77,684,200 km

• M1: 40,242 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.5

Radius: 9.1

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 6.89 AU - 8.65 AU

Year: 7648 Days

Day: 5.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 77,684,200 km

• M1: 126,410 km (0.092 R)
• M2: 734,825 km (0.082 R)
• M3: 1,063,192 km (0.09 R)
• M4: 1,722,021 km (0.117 R)
• M5: 2,042,909 km (0.108 R)
• M6: 2,823,660 km (0.063 R)
• M7: 3,384,053 km (0.086 R)
• M8: 3,851,547 km (0.1 R)
• M9: 4,964,405 km (0.081 R)
• M10: 6,450,660 km (0.113 R)
• M11: 6,774,390 km (0.094 R)
• M12: 7,233,356 km (0.04 R)
• M13: 8,281,738 km (0.08 R)
• M14: 9,242,456 km (0.089 R)
• M15: 10,596,167 km (0.11 R)
• M16: 13,453,337 km (0.072 R)
• M17: 16,458,758 km (0.072 R)
• M18: 17,120,579 km (0.08 R)
• M19: 17,800,052 km (0.11 R)
• M20: 18,912,462 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442.2

Radius: 14.5

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 10.52 AU - 10.74 AU

Year: 12238 Days

Day: 6.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 77,684,200 km

• M1: 180,565 km (0.101 R)
• M2: 945,010 km (0.106 R)
• M3: 1,684,322 km (0.062 R)
• M4: 2,364,843 km (0.102 R)
• M5: 3,090,243 km (0.111 R)
• M6: 3,934,274 km (0.12 R)
• M7: 4,397,429 km (0.118 R)
• M8: 6,046,896 km (0.11 R)
• M9: 6,592,030 km (0.115 R)
• M10: 7,169,927 km (0.053 R)
• M11: 8,295,800 km (0.084 R)
• M12: 8,970,487 km (0.064 R)
• M13: 12,615,738 km (0.075 R)
• M14: 14,065,491 km (0.098 R)
• M15: 14,960,984 km (0.119 R)
• M16: 16,236,904 km (0.08 R)
• M17: 18,322,448 km (0.115 R)
• M18: 19,081,508 km (0.074 R)
• M19: 22,073,465 km (0.099 R)
• M20: 24,173,969 km (0.069 R)
• M21: 26,596,407 km (0.076 R)
• M22: 40,406,684 km (0.115 R)
• M23: 44,891,927 km (0.095 R)
• M24: 46,972,385 km (0.061 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 373

Radius: 3.3

Gravity: 34.25 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 14.2 AU - 22.68 AU

Year: 27960 Days

Day: 20.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 77,684,200 km

• M1: 42,635 km (0.062 R)
• M2: 371,152 km (0.097 R)
• M3: 501,452 km (0.112 R)
• M4: 634,594 km (0.114 R)
• M5: 823,536 km (0.038 R)
• M6: 1,155,195 km (0.094 R)
• M7: 1,895,704 km (0.102 R)
• M8: 2,309,642 km (0.065 R)
• M9: 2,585,201 km (0.095 R)
• M10: 3,065,859 km (0.051 R)
• M11: 3,573,744 km (0.098 R)
• M12: 3,942,053 km (0.074 R)
• M13: 4,267,878 km (0.113 R)
• M14: 4,973,082 km (0.086 R)
• M15: 5,917,643 km (0.101 R)
• M16: 7,211,066 km (0.12 R)
• M17: 8,574,202 km (0.107 R)
• M18: 9,804,794 km (0.081 R)
• M19: 10,340,504 km (0.051 R)
• M20: 10,895,363 km (0.108 R)
• M21: 11,997,300 km (0.079 R)
• M22: 18,725,165 km (0.119 R)
• M23: 25,106,562 km (0.091 R)
• M24: 31,631,572 km (0.091 R)
• M25: 32,275,441 km (0.103 R)
• M26: 34,259,259 km (0.103 R)
• M27: 36,322,812 km (0.116 R)
• M28: 37,599,929 km (0.068 R)
• M29: 39,201,075 km (0.088 R)
• M30: 39,943,529 km (0.092 R)
• M31: 44,758,037 km (0.1 R)
• M32: 45,569,157 km (0.12 R)
• M33: 46,887,114 km (0.075 R)
• M34: 48,061,009 km (0.058 R)
• M35: 64,736,235 km (0.054 R)
• M36: 67,454,727 km (0.037 R)
• M37: 68,734,686 km (0.114 R)
• M38: 73,566,548 km (0.109 R)
• M39: 76,065,132 km (0.119 R)

Kuiper Belt

Range: 31.1 - 53.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 341 - 20,150 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit