🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.31

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.7 AU - 0.88 AU

Year: 269 Days

Day: 15.1 Hours

Environment

Temp: 139 °C

Axial Tilt: 15.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.17

Radius: 1.59

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.19 AU - 1.19 AU

Year: 497 Days

Day: 45.5 Hours

Environment

Temp: -24 °C

Axial Tilt: 7.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.63 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 8.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.7

Radius: 14

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 6.96 AU - 9.16 AU

Year: 8761 Days

Day: 14.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 28,887,737 km

• M1: 181,313 km (0.08 R)
• M2: 778,208 km (0.064 R)
• M3: 1,348,326 km (0.031 R)
• M4: 1,977,983 km (0.082 R)
• M5: 2,957,550 km (0.088 R)
• M6: 3,673,974 km (0.107 R)
• M7: 4,396,831 km (0.098 R)
• M8: 6,502,122 km (0.117 R)
• M9: 7,259,237 km (0.054 R)
• M10: 8,034,453 km (0.09 R)
• M11: 8,907,057 km (0.09 R)
• M12: 10,404,981 km (0.036 R)
• M13: 11,039,126 km (0.067 R)
• M14: 12,655,980 km (0.115 R)
• M15: 14,545,251 km (0.054 R)
• M16: 21,414,337 km (0.084 R)
• M17: 22,441,925 km (0.082 R)
• M18: 23,419,397 km (0.11 R)
• M19: 24,595,386 km (0.07 R)
• M20: 25,111,349 km (0.101 R)
• M21: 27,615,169 km (0.061 R)
• M22: 29,502,645 km (0.057 R)
• M23: 35,352,670 km (0.118 R)
• M24: 37,236,855 km (0.103 R)
• M25: 37,689,688 km (0.056 R)

Planet 4 - Ice Giant

Semi-Major Axis: 12.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 579

Radius: 5.3

Gravity: 20.61 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 10.95 AU - 13.11 AU

Year: 15976 Days

Day: 19.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 28,887,737 km

• M1: 69,114 km (0.093 R)
• M2: 287,527 km (0.095 R)
• M3: 483,650 km (0.059 R)
• M4: 828,473 km (0.119 R)
• M5: 1,891,366 km (0.091 R)
• M6: 2,229,307 km (0.1 R)
• M7: 2,455,051 km (0.103 R)
• M8: 3,276,642 km (0.03 R)
• M9: 3,651,983 km (0.113 R)
• M10: 4,206,393 km (0.091 R)
• M11: 5,444,764 km (0.107 R)
• M12: 6,367,185 km (0.042 R)
• M13: 7,300,376 km (0.093 R)
• M14: 7,661,206 km (0.114 R)
• M15: 8,176,870 km (0.101 R)
• M16: 12,262,837 km (0.115 R)
• M17: 16,978,610 km (0.045 R)
• M18: 18,015,473 km (0.109 R)
• M19: 23,643,195 km (0.065 R)
• M20: 26,798,663 km (0.085 R)
• M21: 30,224,006 km (0.101 R)
• M22: 32,101,010 km (0.118 R)
• M23: 32,582,117 km (0.098 R)
• M24: 34,806,787 km (0.08 R)
• M25: 37,660,815 km (0.111 R)
• M26: 39,144,676 km (0.117 R)
• M27: 39,693,850 km (0.076 R)
• M28: 40,387,386 km (0.112 R)
• M29: 53,111,582 km (0.079 R)
• M30: 54,123,014 km (0.106 R)
• M31: 56,532,886 km (0.113 R)

Planet 5 - Ice Giant

Semi-Major Axis: 15.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 936.5

Radius: 5.4

Gravity: 32.12 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 12.9 AU - 17.92 AU

Year: 23162 Days

Day: 19 Hours

Environment

Temp: -188 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 28,887,737 km

• M1: 68,965 km (0.1 R)
• M2: 253,269 km (0.115 R)
• M3: 565,929 km (0.114 R)
• M4: 757,264 km (0.056 R)
• M5: 2,336,868 km (0.089 R)
• M6: 3,472,765 km (0.116 R)
• M7: 4,091,502 km (0.077 R)
• M8: 5,093,508 km (0.111 R)
• M9: 6,961,986 km (0.116 R)
• M10: 7,727,328 km (0.08 R)
• M11: 8,775,710 km (0.108 R)
• M12: 9,125,470 km (0.066 R)
• M13: 10,684,130 km (0.082 R)
• M14: 10,948,919 km (0.09 R)
• M15: 11,840,073 km (0.113 R)
• M16: 12,704,749 km (0.118 R)
• M17: 18,603,094 km (0.117 R)
• M18: 18,890,172 km (0.048 R)
• M19: 19,670,325 km (0.106 R)
• M20: 21,820,046 km (0.098 R)
• M21: 22,461,971 km (0.088 R)
• M22: 26,822,300 km (0.085 R)
• M23: 29,200,158 km (0.112 R)
• M24: 30,110,461 km (0.109 R)
• M25: 33,941,363 km (0.117 R)
• M26: 37,019,040 km (0.112 R)
• M27: 37,473,369 km (0.101 R)
• M28: 39,171,155 km (0.069 R)
• M29: 40,597,721 km (0.046 R)
• M30: 42,387,958 km (0.082 R)
• M31: 52,323,202 km (0.043 R)
• M32: 57,219,241 km (0.084 R)
• M33: 59,053,909 km (0.099 R)
• M34: 62,198,307 km (0.115 R)
• M35: 66,785,277 km (0.11 R)
• M36: 67,683,911 km (0.102 R)
• M37: 73,960,888 km (0.093 R)
• M38: 77,363,342 km (0.118 R)
• M39: 79,103,165 km (0.097 R)
• M40: 82,402,995 km (0.106 R)
• M41: 82,660,453 km (0.072 R)
• M42: 89,004,450 km (0.086 R)

Planet 6 - Ice Giant

Semi-Major Axis: 16.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 22

Radius: 7.9

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 16.09 AU - 17.29 AU

Year: 26107 Days

Day: 18.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 28,887,737 km

• M1: 98,286 km (0.075 R)
• M2: 807,679 km (0.113 R)
• M3: 1,086,529 km (0.118 R)
• M4: 2,231,252 km (0.103 R)
• M5: 2,810,046 km (0.098 R)
• M6: 3,106,400 km (0.099 R)
• M7: 5,290,828 km (0.081 R)
• M8: 5,600,047 km (0.103 R)
• M9: 7,331,343 km (0.078 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 252 - 17,897 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit