🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.62 AU - 0.64 AU

Year: 211 Days

Day: 38.3 Hours

Environment

Temp: 31 °C

Axial Tilt: 49.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 85,348,205 km

• M1: 23,337 km (0.118 R)
• M2: 159,471 km (0.034 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.02

Radius: 1.32

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.88 AU - 0.88 AU

Year: 348 Days

Day: 36.8 Hours

Environment

Temp: -36 °C

Axial Tilt: 33.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.81

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.08 AU - 1.08 AU

Year: 473 Days

Day: 31.2 Hours

Environment

Temp: -57 °C

Axial Tilt: 35.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 85,348,205 km

• M1: 202,107 km (0.086 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.06 AU - 1.74 AU

Year: 699 Days

Day: 25.6 Hours

Environment

Temp: -86 °C

Axial Tilt: 15.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.79

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 2.03 AU - 2.07 AU

Year: 1238 Days

Day: 23.2 Hours

Environment

Temp: -114 °C

Axial Tilt: 14.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.11

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.88 AU - 2.26 AU

Year: 1256 Days

Day: 26.7 Hours

Environment

Temp: -118 °C

Axial Tilt: 49.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 2.38 AU - 3.32 AU

Year: 2029 Days

Day: 31 Hours

Environment

Temp: -144 °C

Axial Tilt: 45.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.92 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 12.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 994.1

Radius: 7.2

Gravity: 19.18 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 12.06 AU - 13.9 AU

Year: 19723 Days

Day: 19.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 85,348,205 km

• M1: 89,609 km (0.116 R)
• M2: 328,517 km (0.115 R)
• M3: 1,553,723 km (0.09 R)
• M4: 1,805,198 km (0.055 R)
• M5: 2,604,948 km (0.095 R)
• M6: 2,909,529 km (0.099 R)
• M7: 3,530,061 km (0.046 R)
• M8: 4,408,200 km (0.094 R)
• M9: 5,880,094 km (0.1 R)
• M10: 6,821,065 km (0.11 R)
• M11: 7,755,602 km (0.095 R)
• M12: 8,442,556 km (0.03 R)
• M13: 9,696,336 km (0.075 R)
• M14: 11,266,664 km (0.032 R)
• M15: 12,356,335 km (0.109 R)
• M16: 13,218,617 km (0.087 R)
• M17: 16,897,229 km (0.034 R)
• M18: 24,158,111 km (0.089 R)
• M19: 24,824,570 km (0.109 R)
• M20: 25,847,221 km (0.077 R)
• M21: 27,254,039 km (0.041 R)
• M22: 29,208,087 km (0.086 R)
• M23: 34,081,237 km (0.075 R)
• M24: 42,445,404 km (0.12 R)
• M25: 43,090,470 km (0.091 R)
• M26: 46,755,319 km (0.106 R)
• M27: 47,443,319 km (0.119 R)
• M28: 49,904,204 km (0.094 R)
• M29: 52,264,410 km (0.054 R)
• M30: 72,268,787 km (0.094 R)
• M31: 74,348,496 km (0.109 R)
• M32: 76,705,710 km (0.116 R)
• M33: 79,843,974 km (0.099 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 448 - 19,646 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit