🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.29

Radius: 1.11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.58 AU - 0.68 AU

Year: 318 Days

Day: 13.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 29.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 13,815,876 km

• M1: 37,250 km (0.063 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925.5

Radius: 14.8

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.69 AU - 1.05 AU

Year: 516 Days

Day: 6.3 Hours

Environment

Temp: -151 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 13,815,876 km

• M1: 184,305 km (0.11 R)
• M2: 718,369 km (0.074 R)
• M3: 1,595,611 km (0.092 R)
• M4: 2,233,197 km (0.068 R)
• M5: 2,901,301 km (0.07 R)
• M6: 3,975,115 km (0.083 R)
• M7: 5,723,166 km (0.1 R)
• M8: 6,479,233 km (0.096 R)
• M9: 7,026,612 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.5

Radius: 8.5

Gravity: 10.57 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.18 AU - 1.48 AU

Year: 975 Days

Day: 11.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 13,815,876 km

• M1: 105,766 km (0.074 R)
• M2: 541,245 km (0.07 R)
• M3: 981,661 km (0.12 R)
• M4: 1,265,748 km (0.092 R)
• M5: 2,812,739 km (0.09 R)
• M6: 3,240,888 km (0.059 R)
• M7: 3,805,171 km (0.044 R)
• M8: 4,127,555 km (0.096 R)
• M9: 4,520,848 km (0.037 R)
• M10: 4,939,123 km (0.044 R)
• M11: 5,895,353 km (0.114 R)
• M12: 7,209,271 km (0.097 R)
• M13: 9,299,303 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.6

Radius: 8.4

Gravity: 12.93 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.45 AU - 1.77 AU

Year: 1299 Days

Day: 12.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 13,815,876 km

• M1: 105,018 km (0.078 R)
• M2: 402,269 km (0.096 R)
• M3: 1,240,166 km (0.076 R)
• M4: 1,607,579 km (0.093 R)
• M5: 2,512,646 km (0.064 R)
• M6: 3,334,537 km (0.099 R)
• M7: 3,945,943 km (0.118 R)
• M8: 4,287,924 km (0.06 R)
• M9: 5,093,658 km (0.099 R)
• M10: 5,722,119 km (0.109 R)
• M11: 5,996,780 km (0.049 R)
• M12: 8,003,486 km (0.101 R)
• M13: 8,731,878 km (0.09 R)
• M14: 9,314,263 km (0.066 R)
• M15: 10,020,813 km (0.085 R)
• M16: 10,319,860 km (0.032 R)
• M17: 11,504,226 km (0.069 R)
• M18: 12,317,290 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 564.4

Radius: 11.2

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.68 AU - 2.18 AU

Year: 1705 Days

Day: 12.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 13,815,876 km

• M1: 139,276 km (0.106 R)
• M2: 538,852 km (0.058 R)
• M3: 969,394 km (0.092 R)
• M4: 1,444,667 km (0.091 R)
• M5: 1,798,017 km (0.098 R)
• M6: 2,292,887 km (0.115 R)
• M7: 3,049,403 km (0.112 R)
• M8: 4,107,060 km (0.081 R)
• M9: 4,458,615 km (0.043 R)
• M10: 4,850,561 km (0.092 R)
• M11: 5,222,761 km (0.104 R)
• M12: 6,166,723 km (0.081 R)
• M13: 7,902,956 km (0.085 R)
• M14: 13,249,435 km (0.094 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 191 - 18,484 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit