🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.02

Radius: 1.56

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.59 AU - 0.75 AU

Year: 198 Days

Day: 26.1 Hours

Environment

Temp: 186 °C

Axial Tilt: 39.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.66 AU - 0.78 AU

Year: 221 Days

Day: 23.3 Hours

Environment

Temp: 150 °C

Axial Tilt: 45 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.07

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.45 AU - 1.49 AU

Year: 645 Days

Day: 25.2 Hours

Environment

Temp: -38 °C

Axial Tilt: 39 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,338,068 km

• M1: 79,287 km (0.076 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.04 AU - 2.08 AU

Year: 1069 Days

Day: 16.9 Hours

Environment

Temp: -73 °C

Axial Tilt: 5.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 2.42 AU - 3.48 AU

Year: 1832 Days

Day: 13.8 Hours

Environment

Temp: -96 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 74,338,068 km

• M1: 80,484 km (0.099 R)
• M2: 613,351 km (0.112 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.7

Radius: 0.87

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 3.27 AU - 3.81 AU

Year: 2409 Days

Day: 46.6 Hours

Environment

Temp: -107 °C

Axial Tilt: 48.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 74,338,068 km

• M1: 25,880 km (0.118 R)
• M2: 40,840 km (0.039 R)

Planet 7 - Terrestrial

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.14

Radius: 0.46

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 3.55 AU - 5.89 AU

Year: 3709 Days

Day: 35 Hours

Environment

Temp: -139 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 10.02 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 15.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 544.4

Radius: 3

Gravity: 60.49 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 14.84 AU - 15.78 AU

Year: 21665 Days

Day: 19.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 74,338,068 km

• M1: 37,399 km (0.039 R)
• M2: 147,354 km (0.051 R)
• M3: 245,640 km (0.092 R)
• M4: 383,419 km (0.08 R)
• M5: 477,965 km (0.101 R)
• M6: 1,668,315 km (0.081 R)
• M7: 3,195,710 km (0.117 R)
• M8: 3,831,501 km (0.102 R)
• M9: 5,046,535 km (0.117 R)
• M10: 6,540,718 km (0.063 R)
• M11: 7,604,658 km (0.115 R)
• M12: 8,566,423 km (0.114 R)
• M13: 9,049,026 km (0.1 R)
• M14: 11,607,448 km (0.112 R)
• M15: 11,802,075 km (0.038 R)
• M16: 13,652,900 km (0.059 R)
• M17: 15,297,130 km (0.077 R)
• M18: 16,409,390 km (0.12 R)
• M19: 17,574,459 km (0.1 R)
• M20: 18,090,272 km (0.115 R)
• M21: 20,160,856 km (0.106 R)
• M22: 20,442,100 km (0.091 R)
• M23: 20,631,042 km (0.083 R)
• M24: 20,726,037 km (0.084 R)
• M25: 26,630,366 km (0.097 R)
• M26: 32,396,765 km (0.058 R)
• M27: 35,568,839 km (0.032 R)
• M28: 36,392,973 km (0.073 R)
• M29: 37,370,446 km (0.088 R)
• M30: 42,368,211 km (0.092 R)
• M31: 47,793,079 km (0.066 R)
• M32: 48,460,136 km (0.041 R)
• M33: 54,202,600 km (0.075 R)
• M34: 66,392,133 km (0.093 R)
• M35: 70,828,458 km (0.064 R)
• M36: 72,569,029 km (0.082 R)

Kuiper Belt

Range: 30.3 - 51.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 244 - 17,855 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit