🌌 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 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.52 AU - 0.66 AU

Year: 297 Days

Day: 23.5 Hours

Environment

Temp: -130 °C

Axial Tilt: 21.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.45

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.54 AU - 0.64 AU

Year: 297 Days

Day: 33.4 Hours

Environment

Temp: -130 °C

Axial Tilt: 121.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 958.3

Radius: 9.5

Gravity: 10.62 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.68 AU - 0.88 AU

Year: 452 Days

Day: 5.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 115.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 51,247,457 km

• M1: 118,332 km (0.109 R)
• M2: 440,416 km (0.073 R)
• M3: 747,690 km (0.096 R)
• M4: 1,170,603 km (0.034 R)
• M5: 1,886,579 km (0.098 R)
• M6: 2,285,107 km (0.089 R)
• M7: 2,739,436 km (0.083 R)
• M8: 3,301,924 km (0.069 R)
• M9: 3,617,576 km (0.109 R)
• M10: 4,107,808 km (0.063 R)
• M11: 4,925,659 km (0.049 R)
• M12: 5,598,700 km (0.08 R)
• M13: 6,049,588 km (0.102 R)
• M14: 6,622,698 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.6

Radius: 11.8

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.81 AU - 1.15 AU

Year: 636 Days

Day: 10.5 Hours

Environment

Temp: -166 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,247,457 km

• M1: 146,756 km (0.069 R)
• M2: 521,648 km (0.085 R)
• M3: 1,177,784 km (0.068 R)
• M4: 1,670,709 km (0.105 R)
• M5: 2,239,480 km (0.098 R)
• M6: 2,983,430 km (0.107 R)
• M7: 4,822,736 km (0.112 R)
• M8: 6,389,175 km (0.104 R)
• M9: 7,210,019 km (0.067 R)
• M10: 7,622,610 km (0.115 R)
• M11: 8,596,642 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.4

Radius: 8.5

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.53 AU - 2.33 AU

Year: 1759 Days

Day: 6.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 51,247,457 km

• M1: 160,967 km (0.037 R)
• M2: 786,436 km (0.115 R)
• M3: 3,403,352 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 574.5

Radius: 5.3

Gravity: 20.45 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 5.29 AU - 8.65 AU

Year: 12071 Days

Day: 17.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 51,247,457 km

• M1: 66,721 km (0.092 R)
• M2: 610,958 km (0.104 R)
• M3: 865,573 km (0.076 R)
• M4: 1,393,205 km (0.119 R)
• M5: 2,095,417 km (0.12 R)
• M6: 2,298,122 km (0.073 R)
• M7: 2,534,338 km (0.054 R)
• M8: 2,852,233 km (0.103 R)
• M9: 3,366,102 km (0.118 R)
• M10: 4,576,049 km (0.116 R)
• M11: 5,047,731 km (0.093 R)
• M12: 5,977,482 km (0.104 R)
• M13: 6,815,380 km (0.093 R)
• M14: 7,016,140 km (0.111 R)
• M15: 7,472,114 km (0.028 R)
• M16: 8,396,779 km (0.053 R)
• M17: 8,862,926 km (0.061 R)
• M18: 9,544,344 km (0.081 R)
• M19: 10,738,734 km (0.052 R)
• M20: 13,295,062 km (0.083 R)
• M21: 15,390,629 km (0.103 R)
• M22: 16,806,573 km (0.099 R)
• M23: 22,005,398 km (0.078 R)
• M24: 23,798,029 km (0.109 R)
• M25: 32,393,624 km (0.063 R)
• M26: 32,620,264 km (0.098 R)
• M27: 33,653,088 km (0.113 R)
• M28: 33,885,414 km (0.081 R)
• M29: 34,589,272 km (0.098 R)
• M30: 36,025,860 km (0.064 R)
• M31: 42,712,286 km (0.096 R)
• M32: 43,947,666 km (0.112 R)
• M33: 47,796,520 km (0.077 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 151 - 16,844 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit