🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.5

Radius: 11.7

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.45 AU - 0.73 AU

Year: 313 Days

Day: 10 Hours

Environment

Temp: -154 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,541,341 km

• M1: 145,559 km (0.111 R)
• M2: 525,388 km (0.073 R)
• M3: 1,357,900 km (0.108 R)
• M4: 2,153,162 km (0.093 R)
• M5: 2,660,897 km (0.099 R)
• M6: 3,344,560 km (0.082 R)
• M7: 4,116,784 km (0.088 R)
• M8: 4,654,139 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.7

Radius: 11.4

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.62 AU - 0.66 AU

Year: 353 Days

Day: 5.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 55,541,341 km

• M1: 141,819 km (0.107 R)
• M2: 1,048,980 km (0.045 R)
• M3: 1,971,999 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.7

Radius: 11.9

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.61 AU - 0.99 AU

Year: 494 Days

Day: 7.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,541,341 km

• M1: 147,952 km (0.085 R)
• M2: 651,499 km (0.072 R)
• M3: 1,102,985 km (0.084 R)
• M4: 1,622,987 km (0.043 R)
• M5: 2,022,114 km (0.045 R)
• M6: 2,462,979 km (0.117 R)
• M7: 2,885,294 km (0.114 R)
• M8: 3,489,520 km (0.109 R)

Planet 4 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 77.7

Radius: 6.6

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 5.7 AU - 8.6 AU

Year: 13197 Days

Day: 24.5 Hours

Environment

Temp: -237 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,541,341 km

• M1: 82,129 km (0.074 R)
• M2: 511,774 km (0.107 R)
• M3: 1,503,459 km (0.109 R)
• M4: 1,758,673 km (0.117 R)
• M5: 3,499,094 km (0.118 R)
• M6: 3,709,578 km (0.063 R)
• M7: 5,915,698 km (0.098 R)
• M8: 7,516,246 km (0.095 R)
• M9: 9,186,207 km (0.06 R)
• M10: 10,298,916 km (0.116 R)
• M11: 11,918,762 km (0.107 R)
• M12: 14,014,927 km (0.103 R)
• M13: 16,112,588 km (0.057 R)
• M14: 16,461,899 km (0.106 R)
• M15: 16,875,837 km (0.099 R)
• M16: 18,347,880 km (0.099 R)
• M17: 24,477,802 km (0.112 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 344.4

Radius: 6.6

Gravity: 7.91 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 6.52 AU - 10.8 AU

Year: 17591 Days

Day: 20.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 55,541,341 km

• M1: 82,129 km (0.079 R)
• M2: 512,522 km (0.063 R)
• M3: 730,786 km (0.113 R)
• M4: 1,702,424 km (0.059 R)
• M5: 3,030,105 km (0.098 R)
• M6: 5,410,207 km (0.08 R)
• M7: 8,199,310 km (0.106 R)
• M8: 13,235,672 km (0.095 R)
• M9: 14,282,258 km (0.075 R)
• M10: 15,033,090 km (0.088 R)
• M11: 16,836,941 km (0.093 R)
• M12: 22,013,327 km (0.087 R)
• M13: 32,022,771 km (0.062 R)
• M14: 37,618,928 km (0.095 R)
• M15: 51,961,025 km (0.086 R)
• M16: 53,568,604 km (0.071 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 530 - 18,546 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit