🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.61

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.57 AU - 0.73 AU

Year: 338 Days

Day: 36.6 Hours

Environment

Temp: -131 °C

Axial Tilt: 20.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263.6

Radius: 12.6

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.56 AU - 0.82 AU

Year: 370 Days

Day: 7.7 Hours

Environment

Temp: -147 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 15,789,752 km

• M1: 156,629 km (0.109 R)
• M2: 580,589 km (0.028 R)
• M3: 983,456 km (0.081 R)
• M4: 1,436,439 km (0.12 R)
• M5: 2,366,489 km (0.045 R)
• M6: 3,030,703 km (0.089 R)
• M7: 3,557,886 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.9

Radius: 9

Gravity: 11.23 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.88 AU - 1.18 AU

Year: 675 Days

Day: 12.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 15,789,752 km

• M1: 112,498 km (0.075 R)
• M2: 463,005 km (0.041 R)
• M3: 750,832 km (0.067 R)
• M4: 1,053,618 km (0.043 R)
• M5: 1,352,514 km (0.084 R)
• M6: 2,147,178 km (0.111 R)
• M7: 2,501,875 km (0.097 R)
• M8: 2,907,734 km (0.12 R)
• M9: 3,384,353 km (0.045 R)
• M10: 4,002,641 km (0.071 R)
• M11: 4,411,940 km (0.075 R)
• M12: 5,222,611 km (0.089 R)
• M13: 6,190,659 km (0.07 R)
• M14: 7,047,705 km (0.03 R)
• M15: 7,458,351 km (0.118 R)
• M16: 8,030,563 km (0.087 R)
• M17: 8,428,045 km (0.071 R)
• M18: 8,708,840 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.6

Radius: 13.3

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.86 AU - 1.22 AU

Year: 685 Days

Day: 7 Hours

Environment

Temp: -170 °C

Axial Tilt: 123.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 15,789,752 km

• M1: 165,455 km (0.074 R)
• M2: 642,822 km (0.06 R)
• M3: 1,071,869 km (0.083 R)
• M4: 1,733,391 km (0.052 R)
• M5: 2,210,309 km (0.056 R)
• M6: 2,797,181 km (0.052 R)
• M7: 3,564,468 km (0.118 R)
• M8: 4,141,318 km (0.115 R)
• M9: 4,653,391 km (0.116 R)
• M10: 5,751,141 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.3

Radius: 13.5

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2 AU - 2.28 AU

Year: 2021 Days

Day: 5.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 15,789,752 km

• M1: 171,738 km (0.108 R)
• M2: 598,242 km (0.101 R)
• M3: 1,080,396 km (0.031 R)
• M4: 1,629,719 km (0.066 R)
• M5: 2,389,826 km (0.115 R)
• M6: 3,409,036 km (0.117 R)
• M7: 4,438,270 km (0.107 R)
• M8: 5,434,891 km (0.097 R)
• M9: 6,679,545 km (0.119 R)
• M10: 7,189,225 km (0.091 R)
• M11: 7,667,190 km (0.12 R)
• M12: 9,829,478 km (0.118 R)
• M13: 10,313,726 km (0.09 R)
• M14: 11,292,545 km (0.088 R)
• M15: 12,692,931 km (0.089 R)
• M16: 14,826,047 km (0.068 R)
• M17: 15,371,780 km (0.089 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: 153 - 16,378 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit