🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.4 AU - 0.62 AU

Year: 239 Days

Day: 23.2 Hours

Environment

Temp: -113 °C

Axial Tilt: 44 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 916.2

Radius: 11.6

Gravity: 6.81 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.95 AU - 0.97 AU

Year: 617 Days

Day: 9.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,755,283 km

• M1: 144,362 km (0.116 R)
• M2: 538,253 km (0.025 R)
• M3: 996,322 km (0.062 R)
• M4: 1,559,558 km (0.12 R)
• M5: 2,431,564 km (0.112 R)
• M6: 2,923,442 km (0.039 R)
• M7: 3,296,239 km (0.088 R)
• M8: 4,230,777 km (0.09 R)
• M9: 5,553,671 km (0.099 R)
• M10: 6,130,072 km (0.116 R)
• M11: 6,577,669 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828

Radius: 14.4

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.96 AU - 1.22 AU

Year: 747 Days

Day: 9 Hours

Environment

Temp: -157 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,755,283 km

• M1: 179,667 km (0.117 R)
• M2: 982,260 km (0.115 R)
• M3: 1,434,045 km (0.103 R)
• M4: 2,293,934 km (0.072 R)
• M5: 2,847,895 km (0.058 R)
• M6: 4,136,232 km (0.103 R)
• M7: 4,756,614 km (0.116 R)
• M8: 5,438,481 km (0.103 R)
• M9: 7,455,659 km (0.101 R)
• M10: 7,907,893 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.9

Radius: 13.9

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.6 AU - 3.24 AU

Year: 3273 Days

Day: 9.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 45,755,283 km

• M1: 173,833 km (0.117 R)
• M2: 607,667 km (0.118 R)
• M3: 1,721,871 km (0.109 R)
• M4: 2,276,132 km (0.056 R)
• M5: 2,722,382 km (0.07 R)
• M6: 4,495,566 km (0.104 R)
• M7: 7,656,718 km (0.087 R)
• M8: 8,908,553 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860

Radius: 12.5

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 4.97 AU - 5.91 AU

Year: 8324 Days

Day: 14.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 45,755,283 km

• M1: 155,432 km (0.115 R)
• M2: 627,862 km (0.072 R)
• M3: 1,199,925 km (0.095 R)
• M4: 2,860,461 km (0.081 R)
• M5: 3,321,222 km (0.089 R)
• M6: 3,806,368 km (0.081 R)
• M7: 4,652,045 km (0.109 R)
• M8: 6,028,196 km (0.074 R)
• M9: 7,908,791 km (0.056 R)
• M10: 8,379,874 km (0.051 R)
• M11: 8,824,479 km (0.067 R)
• M12: 10,556,673 km (0.12 R)
• M13: 11,181,693 km (0.046 R)
• M14: 12,563,080 km (0.111 R)
• M15: 15,998,146 km (0.115 R)
• M16: 17,317,749 km (0.119 R)
• M17: 23,415,059 km (0.076 R)
• M18: 26,894,107 km (0.062 R)
• M19: 27,473,200 km (0.057 R)
• M20: 30,183,016 km (0.036 R)
• M21: 35,432,405 km (0.095 R)
• M22: 38,393,695 km (0.099 R)
• M23: 42,550,272 km (0.116 R)
• M24: 43,733,890 km (0.116 R)
• M25: 44,939,350 km (0.048 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 501 - 17,927 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit