🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.97

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.48 AU - 0.68 AU

Year: 281 Days

Day: 12.6 Hours

Environment

Temp: -136 °C

Axial Tilt: 91.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.2

Radius: 9.9

Gravity: 9.6 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.72 AU - 1.16 AU

Year: 579 Days

Day: 14.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 79,643,288 km

• M1: 123,119 km (0.095 R)
• M2: 442,959 km (0.103 R)
• M3: 1,663,977 km (0.107 R)
• M4: 2,022,862 km (0.072 R)
• M5: 2,371,575 km (0.112 R)
• M6: 2,817,825 km (0.065 R)
• M7: 3,268,115 km (0.114 R)
• M8: 3,640,464 km (0.065 R)
• M9: 4,130,547 km (0.114 R)
• M10: 4,582,931 km (0.057 R)
• M11: 5,550,380 km (0.104 R)
• M12: 6,024,007 km (0.099 R)
• M13: 6,966,025 km (0.106 R)
• M14: 7,562,920 km (0.088 R)

Planet 3 - Ice Giant

Semi-Major Axis: 9.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 934.1

Radius: 6.2

Gravity: 24.3 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 9.74 AU - 9.86 AU

Year: 19506 Days

Day: 18.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 79,643,288 km

• M1: 77,492 km (0.094 R)
• M2: 285,582 km (0.04 R)
• M3: 663,915 km (0.111 R)
• M4: 1,059,751 km (0.085 R)
• M5: 1,357,002 km (0.078 R)
• M6: 1,637,498 km (0.036 R)
• M7: 2,249,054 km (0.094 R)
• M8: 2,546,904 km (0.072 R)
• M9: 3,601,270 km (0.113 R)
• M10: 4,009,971 km (0.111 R)
• M11: 4,554,806 km (0.108 R)
• M12: 6,002,615 km (0.116 R)
• M13: 7,531,505 km (0.108 R)
• M14: 8,575,100 km (0.119 R)
• M15: 10,010,940 km (0.086 R)
• M16: 11,269,656 km (0.063 R)
• M17: 12,419,765 km (0.103 R)
• M18: 13,497,617 km (0.063 R)
• M19: 17,190,740 km (0.108 R)
• M20: 22,323,443 km (0.052 R)
• M21: 23,161,490 km (0.103 R)
• M22: 26,724,313 km (0.059 R)
• M23: 27,668,874 km (0.049 R)
• M24: 28,028,657 km (0.093 R)
• M25: 31,932,413 km (0.097 R)
• M26: 35,615,064 km (0.097 R)
• M27: 36,183,686 km (0.059 R)
• M28: 38,518,759 km (0.12 R)
• M29: 45,454,415 km (0.105 R)
• M30: 52,625,389 km (0.09 R)
• M31: 53,548,259 km (0.059 R)
• M32: 60,112,613 km (0.067 R)
• M33: 68,061,047 km (0.12 R)
• M34: 68,497,723 km (0.11 R)
• M35: 76,917,989 km (0.052 R)
• M36: 77,391,915 km (0.106 R)
• M37: 81,498,377 km (0.06 R)

Planet 4 - Ice Giant

Semi-Major Axis: 10.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 647.1

Radius: 4.8

Gravity: 28.09 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 10.11 AU - 11.15 AU

Year: 22036 Days

Day: 17.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 79,643,288 km

• M1: 59,690 km (0.079 R)
• M2: 333,753 km (0.109 R)
• M3: 1,040,603 km (0.065 R)
• M4: 1,394,851 km (0.066 R)
• M5: 2,945,732 km (0.099 R)
• M6: 9,365,425 km (0.073 R)
• M7: 10,492,795 km (0.07 R)
• M8: 19,118,608 km (0.082 R)
• M9: 19,676,458 km (0.098 R)
• M10: 31,019,118 km (0.062 R)
• M11: 36,534,044 km (0.07 R)
• M12: 43,779,218 km (0.097 R)
• M13: 46,225,592 km (0.074 R)
• M14: 57,497,942 km (0.096 R)
• M15: 63,661,224 km (0.112 R)
• M16: 64,073,366 km (0.087 R)
• M17: 68,724,514 km (0.092 R)
• M18: 70,470,171 km (0.111 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: 293 - 13,267 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit