🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.54 AU - 0.56 AU

Year: 268 Days

Day: 29.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 49.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,665,502 km

• M1: 41,738 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.9

Radius: 10.8

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.8 AU - 1.28 AU

Year: 696 Days

Day: 14 Hours

Environment

Temp: -159 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 35,665,502 km

• M1: 142,716 km (0.098 R)
• M2: 490,681 km (0.095 R)
• M3: 998,566 km (0.12 R)
• M4: 1,845,589 km (0.103 R)
• M5: 2,436,501 km (0.088 R)
• M6: 4,706,798 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.7

Radius: 12.6

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.85 AU - 1.27 AU

Year: 716 Days

Day: 12 Hours

Environment

Temp: -168 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,665,502 km

• M1: 156,629 km (0.101 R)
• M2: 625,319 km (0.072 R)
• M3: 1,057,358 km (0.059 R)
• M4: 1,738,178 km (0.114 R)
• M5: 2,357,962 km (0.111 R)
• M6: 3,602,915 km (0.111 R)
• M7: 4,031,214 km (0.085 R)
• M8: 4,438,868 km (0.11 R)
• M9: 5,125,223 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.3

Radius: 9.3

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.4 AU - 2.16 AU

Year: 1558 Days

Day: 10.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 35,665,502 km

• M1: 115,639 km (0.057 R)
• M2: 722,707 km (0.103 R)
• M3: 1,095,056 km (0.088 R)
• M4: 1,386,473 km (0.079 R)
• M5: 2,286,454 km (0.077 R)
• M6: 4,116,933 km (0.057 R)
• M7: 5,555,467 km (0.117 R)
• M8: 7,153,172 km (0.1 R)
• M9: 8,749,082 km (0.116 R)
• M10: 9,094,803 km (0.073 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 77.7

Radius: 3.6

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 7.68 AU - 11.22 AU

Year: 19057 Days

Day: 24.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 35,665,502 km

• M1: 44,730 km (0.096 R)
• M2: 277,654 km (0.063 R)
• M3: 2,030,342 km (0.088 R)
• M4: 2,779,229 km (0.115 R)
• M5: 4,910,251 km (0.071 R)
• M6: 7,249,513 km (0.072 R)
• M7: 8,050,759 km (0.113 R)
• M8: 9,295,264 km (0.107 R)
• M9: 10,758,181 km (0.047 R)
• M10: 12,686,348 km (0.049 R)
• M11: 23,582,160 km (0.079 R)
• M12: 25,326,022 km (0.117 R)
• M13: 28,145,643 km (0.098 R)
• M14: 29,725,247 km (0.103 R)
• M15: 31,461,330 km (0.052 R)
• M16: 32,554,890 km (0.052 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 357 - 11,664 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit