🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.47

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.79 AU - 1.25 AU

Year: 382 Days

Day: 12.2 Hours

Environment

Temp: 33 °C

Axial Tilt: 19.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.32

Radius: 1.12

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.81 AU - 1.87 AU

Year: 926 Days

Day: 20.6 Hours

Environment

Temp: -58 °C

Axial Tilt: 25.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 42,920,863 km

• M1: 102,026 km (0.06 R)
• M2: 207,941 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.1

Radius: 11

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 4.66 AU - 5.02 AU

Year: 3949 Days

Day: 11.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,920,863 km

• M1: 137,181 km (0.067 R)
• M2: 556,354 km (0.032 R)
• M3: 980,913 km (0.064 R)
• M4: 1,334,413 km (0.114 R)
• M5: 2,059,663 km (0.108 R)
• M6: 2,654,465 km (0.118 R)
• M7: 3,107,148 km (0.072 R)
• M8: 3,526,321 km (0.046 R)
• M9: 7,104,852 km (0.096 R)
• M10: 7,836,834 km (0.074 R)
• M11: 9,124,573 km (0.042 R)
• M12: 10,727,215 km (0.043 R)
• M13: 12,872,747 km (0.109 R)
• M14: 14,394,457 km (0.063 R)
• M15: 15,473,357 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321

Radius: 10.7

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 5.16 AU - 7.68 AU

Year: 6033 Days

Day: 14.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 42,920,863 km

• M1: 133,142 km (0.107 R)
• M2: 791,522 km (0.095 R)
• M3: 1,483,712 km (0.104 R)
• M4: 2,092,575 km (0.026 R)
• M5: 4,205,795 km (0.116 R)
• M6: 4,878,087 km (0.118 R)
• M7: 5,537,365 km (0.091 R)
• M8: 8,339,632 km (0.034 R)
• M9: 9,519,361 km (0.088 R)
• M10: 12,444,299 km (0.093 R)
• M11: 12,927,051 km (0.065 R)
• M12: 14,240,820 km (0.041 R)
• M13: 14,876,461 km (0.069 R)
• M14: 15,310,594 km (0.041 R)
• M15: 15,865,153 km (0.081 R)
• M16: 19,094,223 km (0.068 R)
• M17: 23,459,788 km (0.116 R)
• M18: 25,025,929 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 10.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344

Radius: 11.2

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 8.09 AU - 12.17 AU

Year: 11957 Days

Day: 6.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,920,863 km

• M1: 139,724 km (0.083 R)
• M2: 601,084 km (0.106 R)
• M3: 1,048,531 km (0.069 R)
• M4: 1,438,683 km (0.095 R)
• M5: 1,942,229 km (0.109 R)
• M6: 5,714,788 km (0.094 R)
• M7: 6,580,810 km (0.108 R)
• M8: 7,896,524 km (0.097 R)
• M9: 10,533,934 km (0.094 R)
• M10: 11,512,603 km (0.092 R)
• M11: 14,876,311 km (0.108 R)
• M12: 15,974,659 km (0.098 R)
• M13: 17,687,106 km (0.081 R)
• M14: 20,755,358 km (0.091 R)
• M15: 22,959,533 km (0.115 R)
• M16: 30,298,954 km (0.036 R)
• M17: 38,703,812 km (0.117 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 380 - 12,680 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit