🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100

Radius: 12.8

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.56 AU - 0.76 AU

Year: 364 Days

Day: 12.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 62,931,532 km

• M1: 159,172 km (0.067 R)
• M2: 866,471 km (0.072 R)
• M3: 1,274,125 km (0.105 R)
• M4: 1,679,386 km (0.067 R)
• M5: 2,455,051 km (0.025 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.3

Radius: 13.5

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.35 AU - 1.59 AU

Year: 1209 Days

Day: 5.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 62,931,532 km

• M1: 171,888 km (0.105 R)
• M2: 641,476 km (0.072 R)
• M3: 1,469,649 km (0.11 R)
• M4: 2,057,270 km (0.095 R)
• M5: 2,857,918 km (0.094 R)
• M6: 3,437,161 km (0.115 R)
• M7: 4,005,932 km (0.097 R)
• M8: 4,473,276 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.7

Radius: 12.8

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1.15 AU - 1.87 AU

Year: 1259 Days

Day: 8.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 62,931,532 km

• M1: 159,172 km (0.097 R)
• M2: 571,763 km (0.03 R)
• M3: 1,004,998 km (0.119 R)
• M4: 1,469,350 km (0.114 R)
• M5: 2,609,884 km (0.025 R)
• M6: 3,512,109 km (0.098 R)
• M7: 3,921,708 km (0.106 R)
• M8: 4,740,607 km (0.036 R)
• M9: 5,208,399 km (0.098 R)
• M10: 5,615,605 km (0.087 R)
• M11: 6,082,649 km (0.068 R)
• M12: 7,552,299 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.1

Radius: 10.8

Gravity: 8.17 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.5 AU - 2.22 AU

Year: 1721 Days

Day: 9.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 62,931,532 km

• M1: 134,339 km (0.097 R)
• M2: 530,624 km (0.098 R)
• M3: 1,448,855 km (0.102 R)
• M4: 1,785,151 km (0.109 R)
• M5: 2,299,618 km (0.099 R)
• M6: 2,792,244 km (0.082 R)
• M7: 3,610,395 km (0.106 R)
• M8: 4,601,930 km (0.055 R)
• M9: 5,717,930 km (0.053 R)
• M10: 6,262,765 km (0.049 R)
• M11: 6,950,915 km (0.057 R)
• M12: 7,398,961 km (0.118 R)
• M13: 8,137,675 km (0.085 R)
• M14: 8,892,546 km (0.11 R)
• M15: 9,320,396 km (0.097 R)
• M16: 9,658,936 km (0.099 R)
• M17: 10,983,775 km (0.119 R)
• M18: 11,438,403 km (0.098 R)
• M19: 13,003,346 km (0.084 R)
• M20: 14,390,268 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.2

Radius: 14.3

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.21 AU - 3.25 AU

Year: 3059 Days

Day: 5.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,931,532 km

• M1: 178,620 km (0.092 R)
• M2: 651,648 km (0.088 R)
• M3: 1,157,738 km (0.106 R)
• M4: 1,723,068 km (0.081 R)
• M5: 3,258,990 km (0.075 R)
• M6: 4,670,296 km (0.111 R)
• M7: 5,404,971 km (0.101 R)
• M8: 6,268,899 km (0.117 R)
• M9: 8,665,756 km (0.058 R)
• M10: 9,562,146 km (0.081 R)
• M11: 10,443,727 km (0.086 R)
• M12: 11,061,117 km (0.114 R)
• M13: 12,928,846 km (0.083 R)
• M14: 13,641,231 km (0.109 R)
• M15: 18,202,022 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 287.8

Radius: 4.2

Gravity: 16.32 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 9.81 AU - 11.27 AU

Year: 23209 Days

Day: 19.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 62,931,532 km

• M1: 52,210 km (0.088 R)
• M2: 210,335 km (0.098 R)
• M3: 642,972 km (0.109 R)
• M4: 1,107,174 km (0.078 R)
• M5: 1,554,322 km (0.085 R)
• M6: 1,784,104 km (0.105 R)
• M7: 2,353,324 km (0.097 R)
• M8: 2,501,875 km (0.044 R)
• M9: 3,211,567 km (0.039 R)
• M10: 3,725,137 km (0.101 R)
• M11: 4,046,473 km (0.039 R)
• M12: 4,744,197 km (0.111 R)
• M13: 5,192,392 km (0.111 R)
• M14: 9,573,366 km (0.105 R)
• M15: 13,566,433 km (0.08 R)
• M16: 15,477,396 km (0.086 R)
• M17: 15,625,797 km (0.076 R)
• M18: 18,047,786 km (0.101 R)
• M19: 24,014,198 km (0.08 R)
• M20: 24,614,086 km (0.068 R)
• M21: 26,792,231 km (0.065 R)
• M22: 29,321,631 km (0.092 R)
• M23: 29,662,715 km (0.088 R)
• M24: 31,408,671 km (0.08 R)
• M25: 35,488,504 km (0.119 R)
• M26: 36,659,557 km (0.053 R)
• M27: 38,941,223 km (0.116 R)
• M28: 40,466,972 km (0.108 R)
• M29: 42,032,215 km (0.11 R)
• M30: 46,659,426 km (0.054 R)
• M31: 51,120,734 km (0.087 R)
• M32: 56,557,569 km (0.052 R)
• M33: 58,512,066 km (0.073 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 175 - 15,884 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit