🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.6

Radius: 1.21

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.58 AU - 0.7 AU

Year: 331 Days

Day: 20.4 Hours

Environment

Temp: -135 °C

Axial Tilt: 42.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 9,424,653 km

• M1: 46,824 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.4

Radius: 11.7

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.61 AU - 0.95 AU

Year: 445 Days

Day: 7.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 9,424,653 km

• M1: 145,708 km (0.075 R)
• M2: 753,674 km (0.084 R)
• M3: 1,121,834 km (0.091 R)
• M4: 1,608,327 km (0.067 R)
• M5: 2,427,674 km (0.11 R)
• M6: 2,849,540 km (0.068 R)
• M7: 3,866,656 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.4

Radius: 9.3

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.77 AU - 0.81 AU

Year: 453 Days

Day: 7.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 9,424,653 km

• M1: 115,639 km (0.066 R)
• M2: 535,710 km (0.069 R)
• M3: 908,358 km (0.063 R)
• M4: 1,245,552 km (0.105 R)
• M5: 1,570,628 km (0.083 R)
• M6: 1,974,692 km (0.101 R)
• M7: 2,387,582 km (0.101 R)
• M8: 2,715,949 km (0.072 R)
• M9: 3,816,541 km (0.096 R)
• M10: 4,280,743 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 702

Radius: 11.1

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.87 AU - 0.89 AU

Year: 533 Days

Day: 14.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 9,424,653 km

• M1: 141,968 km (0.092 R)
• M2: 548,276 km (0.11 R)
• M3: 893,698 km (0.064 R)
• M4: 1,354,010 km (0.12 R)
• M5: 1,929,214 km (0.085 R)
• M6: 2,418,698 km (0.041 R)
• M7: 2,888,884 km (0.06 R)
• M8: 3,235,652 km (0.106 R)
• M9: 3,795,298 km (0.032 R)
• M10: 5,869,921 km (0.104 R)
• M11: 6,469,510 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889

Radius: 14

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.9 AU - 1.34 AU

Year: 765 Days

Day: 14.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 9,424,653 km

• M1: 174,581 km (0.113 R)
• M2: 714,479 km (0.118 R)
• M3: 1,262,456 km (0.073 R)
• M4: 1,747,004 km (0.09 R)
• M5: 2,498,284 km (0.118 R)
• M6: 3,226,228 km (0.102 R)
• M7: 3,670,234 km (0.097 R)
• M8: 4,413,736 km (0.081 R)
• M9: 5,274,522 km (0.109 R)
• M10: 5,855,111 km (0.11 R)
• M11: 6,456,644 km (0.045 R)
• M12: 7,260,583 km (0.085 R)
• M13: 7,735,556 km (0.05 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 541 - 13,096 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit