🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.17

Radius: 1.59

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.9 AU - 1.1 AU

Year: 363 Days

Day: 26.9 Hours

Environment

Temp: 32 °C

Axial Tilt: 3.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.63

Radius: 1.85

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 3.32 AU - 3.34 AU

Year: 2208 Days

Day: 21.3 Hours

Environment

Temp: -99 °C

Axial Tilt: 6.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 63,190,758 km

• M1: 59,839 km (0.059 R)

Asteroid Belt

Center: 4.23 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782.1

Radius: 8.8

Gravity: 10.1 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 4.42 AU - 5.82 AU

Year: 4211 Days

Day: 6.6 Hours

Environment

Temp: -130 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,190,758 km

• M1: 109,506 km (0.1 R)
• M2: 450,589 km (0.07 R)
• M3: 1,461,422 km (0.119 R)
• M4: 1,903,633 km (0.119 R)
• M5: 2,982,982 km (0.088 R)
• M6: 4,096,887 km (0.109 R)
• M7: 4,474,921 km (0.115 R)
• M8: 5,085,580 km (0.103 R)
• M9: 5,664,523 km (0.084 R)
• M10: 7,562,322 km (0.102 R)
• M11: 8,169,091 km (0.113 R)
• M12: 9,480,017 km (0.086 R)
• M13: 21,096,292 km (0.041 R)
• M14: 21,585,327 km (0.117 R)
• M15: 22,010,634 km (0.065 R)
• M16: 22,297,263 km (0.095 R)
• M17: 26,819,457 km (0.091 R)

Planet 4 - Ice Giant

Semi-Major Axis: 15.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 31.2

Radius: 4.9

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 13.34 AU - 18.28 AU

Year: 22847 Days

Day: 23.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,190,758 km

• M1: 280,646 km (0.119 R)
• M2: 600,037 km (0.059 R)
• M3: 978,370 km (0.102 R)
• M4: 1,443,470 km (0.044 R)
• M5: 1,818,811 km (0.057 R)
• M6: 2,483,325 km (0.062 R)
• M7: 2,964,132 km (0.053 R)
• M8: 4,598,639 km (0.081 R)
• M9: 5,462,566 km (0.097 R)
• M10: 5,842,694 km (0.066 R)
• M11: 6,334,572 km (0.07 R)
• M12: 6,754,194 km (0.102 R)
• M13: 10,847,342 km (0.108 R)
• M14: 17,066,275 km (0.06 R)
• M15: 17,624,724 km (0.032 R)
• M16: 23,896,764 km (0.114 R)
• M17: 27,611,429 km (0.112 R)

Planet 5 - Ice Giant

Semi-Major Axis: 19.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 160

Radius: 6.6

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 17.52 AU - 21.5 AU

Year: 31320 Days

Day: 18.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,190,758 km

• M1: 85,271 km (0.107 R)
• M2: 290,818 km (0.094 R)
• M3: 1,452,595 km (0.063 R)
• M4: 1,980,377 km (0.072 R)
• M5: 3,655,424 km (0.106 R)
• M6: 4,274,460 km (0.098 R)
• M7: 11,105,697 km (0.044 R)
• M8: 23,539,225 km (0.063 R)
• M9: 30,030,426 km (0.056 R)
• M10: 44,123,294 km (0.111 R)
• M11: 49,384,501 km (0.087 R)
• M12: 49,706,286 km (0.114 R)
• M13: 57,146,835 km (0.09 R)

Kuiper Belt

Range: 30.2 - 60.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 554 - 11,679 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit