🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.49 AU - 0.59 AU

Year: 252 Days

Day: 39.6 Hours

Environment

Temp: -123 °C

Axial Tilt: 34.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.91

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.51 AU - 0.77 AU

Year: 326 Days

Day: 31.5 Hours

Environment

Temp: -130 °C

Axial Tilt: 10.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.3

Radius: 8.9

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.94 AU - 1.04 AU

Year: 626 Days

Day: 14.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 31,891,403 km

• M1: 110,702 km (0.113 R)
• M2: 598,092 km (0.088 R)
• M3: 1,971,550 km (0.07 R)
• M4: 2,511,748 km (0.113 R)
• M5: 3,022,625 km (0.11 R)
• M6: 3,396,919 km (0.102 R)
• M7: 4,291,065 km (0.033 R)
• M8: 4,598,788 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.8

Radius: 11.1

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.42 AU - 3.76 AU

Year: 3454 Days

Day: 13.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 31,891,403 km

• M1: 138,827 km (0.107 R)
• M2: 507,885 km (0.057 R)
• M3: 909,705 km (0.085 R)
• M4: 1,268,889 km (0.049 R)
• M5: 1,694,794 km (0.056 R)
• M6: 2,120,251 km (0.099 R)
• M7: 2,842,659 km (0.094 R)
• M8: 3,810,407 km (0.106 R)
• M9: 4,857,742 km (0.118 R)
• M10: 5,656,295 km (0.055 R)
• M11: 6,014,134 km (0.087 R)
• M12: 7,124,449 km (0.118 R)
• M13: 9,055,458 km (0.084 R)
• M14: 9,747,797 km (0.109 R)
• M15: 10,439,837 km (0.028 R)
• M16: 11,463,086 km (0.046 R)
• M17: 12,957,420 km (0.111 R)
• M18: 14,845,195 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194

Radius: 11

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 4.25 AU - 5.31 AU

Year: 6645 Days

Day: 13.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,891,403 km

• M1: 138,827 km (0.1 R)
• M2: 513,719 km (0.118 R)
• M3: 1,267,393 km (0.085 R)
• M4: 1,673,551 km (0.086 R)
• M5: 3,151,728 km (0.077 R)
• M6: 3,827,312 km (0.108 R)
• M7: 4,344,621 km (0.101 R)
• M8: 4,691,240 km (0.112 R)
• M9: 5,493,234 km (0.077 R)
• M10: 7,304,714 km (0.117 R)
• M11: 9,143,871 km (0.094 R)
• M12: 10,070,929 km (0.078 R)
• M13: 16,824,973 km (0.046 R)
• M14: 21,222,253 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 946.2

Radius: 8.2

Gravity: 14.07 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 4.57 AU - 6.33 AU

Year: 8090 Days

Day: 14.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 31,891,403 km

• M1: 102,026 km (0.101 R)
• M2: 568,023 km (0.084 R)
• M3: 1,218,175 km (0.102 R)
• M4: 1,589,029 km (0.119 R)
• M5: 1,968,110 km (0.083 R)
• M6: 2,700,092 km (0.061 R)
• M7: 3,830,304 km (0.119 R)
• M8: 4,177,072 km (0.076 R)
• M9: 4,903,220 km (0.098 R)
• M10: 6,093,121 km (0.118 R)
• M11: 6,455,447 km (0.083 R)
• M12: 7,795,844 km (0.112 R)
• M13: 8,310,611 km (0.101 R)
• M14: 8,939,370 km (0.092 R)
• M15: 9,407,761 km (0.105 R)
• M16: 11,665,193 km (0.078 R)
• M17: 13,276,512 km (0.082 R)
• M18: 14,451,154 km (0.104 R)
• M19: 15,626,395 km (0.114 R)
• M20: 16,031,955 km (0.075 R)
• M21: 18,091,918 km (0.074 R)
• M22: 21,214,025 km (0.098 R)
• M23: 23,602,056 km (0.115 R)
• M24: 24,496,651 km (0.087 R)
• M25: 25,136,033 km (0.115 R)
• M26: 25,506,587 km (0.086 R)
• M27: 32,593,187 km (0.068 R)
• M28: 40,127,684 km (0.059 R)
• M29: 41,529,715 km (0.116 R)
• M30: 42,964,060 km (0.044 R)
• M31: 43,893,960 km (0.05 R)
• M32: 44,431,166 km (0.087 R)
• M33: 45,108,994 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248

Radius: 12

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 4.84 AU - 6.88 AU

Year: 9019 Days

Day: 12.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 153.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 31,891,403 km

• M1: 149,299 km (0.062 R)
• M2: 616,044 km (0.077 R)
• M3: 989,291 km (0.078 R)
• M4: 1,946,567 km (0.1 R)
• M5: 2,762,025 km (0.117 R)
• M6: 3,139,162 km (0.051 R)
• M7: 4,140,869 km (0.086 R)
• M8: 5,259,412 km (0.115 R)
• M9: 6,504,067 km (0.032 R)
• M10: 7,213,310 km (0.086 R)
• M11: 12,446,842 km (0.098 R)
• M12: 17,080,935 km (0.084 R)
• M13: 24,866,457 km (0.117 R)
• M14: 29,209,134 km (0.103 R)
• M15: 31,796,279 km (0.119 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: 305 - 13,202 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit