🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.48 AU - 0.56 AU

Year: 238 Days

Day: 23.5 Hours

Environment

Temp: -123 °C

Axial Tilt: 19.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.31

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.56 AU - 0.58 AU

Year: 274 Days

Day: 37.1 Hours

Environment

Temp: -126 °C

Axial Tilt: 32.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,232,779 km

• M1: 188,344 km (0.057 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.47 AU - 0.75 AU

Year: 303 Days

Day: 13.6 Hours

Environment

Temp: -136 °C

Axial Tilt: 32.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 276.2

Radius: 13.5

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.72 AU - 1.16 AU

Year: 579 Days

Day: 10.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,232,779 km

• M1: 167,849 km (0.079 R)
• M2: 735,722 km (0.109 R)
• M3: 1,201,121 km (0.058 R)
• M4: 1,775,278 km (0.083 R)
• M5: 2,316,822 km (0.111 R)
• M6: 2,757,687 km (0.116 R)
• M7: 3,276,941 km (0.118 R)
• M8: 4,179,316 km (0.051 R)
• M9: 5,287,238 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.2

Radius: 13.8

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.06 AU - 1.1 AU

Year: 714 Days

Day: 14.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 41,232,779 km

• M1: 173,833 km (0.084 R)
• M2: 755,619 km (0.105 R)
• M3: 1,476,381 km (0.098 R)
• M4: 2,119,203 km (0.029 R)
• M5: 2,852,083 km (0.088 R)
• M6: 3,310,750 km (0.099 R)
• M7: 3,832,997 km (0.107 R)
• M8: 4,535,508 km (0.072 R)
• M9: 5,010,781 km (0.12 R)
• M10: 5,519,563 km (0.114 R)
• M11: 6,397,553 km (0.095 R)
• M12: 7,278,684 km (0.084 R)
• M13: 7,886,949 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.8

Radius: 9

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.68 AU - 2.12 AU

Year: 1665 Days

Day: 10.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,232,779 km

• M1: 112,049 km (0.089 R)
• M2: 526,435 km (0.095 R)
• M3: 809,474 km (0.07 R)
• M4: 1,166,863 km (0.077 R)
• M5: 1,575,714 km (0.061 R)
• M6: 2,372,772 km (0.044 R)
• M7: 3,450,624 km (0.055 R)
• M8: 3,940,558 km (0.099 R)
• M9: 4,341,181 km (0.046 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 125.8

Radius: 4

Gravity: 7.86 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 7.87 AU - 11.13 AU

Year: 18617 Days

Day: 23.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 41,232,779 km

• M1: 49,816 km (0.066 R)
• M2: 278,102 km (0.118 R)
• M3: 557,402 km (0.104 R)
• M4: 807,529 km (0.079 R)
• M5: 1,064,538 km (0.051 R)
• M6: 1,682,677 km (0.027 R)
• M7: 2,068,789 km (0.106 R)
• M8: 2,972,061 km (0.072 R)
• M9: 3,752,663 km (0.068 R)
• M10: 4,325,473 km (0.071 R)
• M11: 4,547,626 km (0.025 R)
• M12: 5,807,090 km (0.041 R)
• M13: 6,009,047 km (0.117 R)
• M14: 6,146,378 km (0.071 R)
• M15: 6,356,114 km (0.111 R)
• M16: 8,422,211 km (0.118 R)
• M17: 8,551,014 km (0.042 R)
• M18: 8,681,015 km (0.03 R)
• M19: 10,104,139 km (0.1 R)
• M20: 10,896,260 km (0.075 R)
• M21: 15,939,354 km (0.111 R)
• M22: 17,773,573 km (0.117 R)
• M23: 20,124,205 km (0.069 R)
• M24: 23,427,924 km (0.091 R)
• M25: 25,252,121 km (0.115 R)
• M26: 31,392,066 km (0.108 R)
• M27: 34,037,854 km (0.085 R)
• M28: 37,520,193 km (0.065 R)
• M29: 39,048,635 km (0.07 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 399 - 12,674 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit