🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 50.1

Radius: 12.6

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.58 AU - 0.88 AU

Year: 409 Days

Day: 12.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 43,470,700 km

• M1: 157,078 km (0.11 R)
• M2: 625,020 km (0.068 R)
• M3: 1,035,965 km (0.114 R)
• M4: 1,713,644 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.1

Radius: 8.5

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.86 AU - 1.32 AU

Year: 747 Days

Day: 10.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 43,470,700 km

• M1: 107,561 km (0.06 R)
• M2: 559,795 km (0.119 R)
• M3: 825,481 km (0.052 R)
• M4: 1,445,714 km (0.118 R)
• M5: 2,083,599 km (0.093 R)
• M6: 2,462,830 km (0.068 R)
• M7: 3,238,046 km (0.111 R)
• M8: 3,749,072 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 75.1

Radius: 9.4

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.12 AU - 1.58 AU

Year: 1029 Days

Day: 8.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,470,700 km

• M1: 119,977 km (0.111 R)
• M2: 695,780 km (0.093 R)
• M3: 990,338 km (0.116 R)
• M4: 1,455,737 km (0.073 R)
• M5: 1,885,532 km (0.092 R)
• M6: 2,461,035 km (0.07 R)
• M7: 2,780,725 km (0.115 R)
• M8: 3,656,471 km (0.103 R)
• M9: 3,961,052 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.3

Radius: 12.8

Gravity: 5.92 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 3.16 AU - 3.36 AU

Year: 3861 Days

Day: 14.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,470,700 km

• M1: 159,172 km (0.1 R)
• M2: 629,657 km (0.072 R)
• M3: 1,037,611 km (0.11 R)
• M4: 1,803,851 km (0.037 R)
• M5: 2,592,830 km (0.028 R)
• M6: 4,312,308 km (0.104 R)
• M7: 6,380,798 km (0.101 R)
• M8: 7,632,633 km (0.114 R)
• M9: 8,847,368 km (0.066 R)
• M10: 9,602,987 km (0.096 R)
• M11: 10,662,439 km (0.113 R)
• M12: 11,152,671 km (0.046 R)
• M13: 27,943,386 km (0.084 R)
• M14: 28,535,195 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.5

Radius: 14.4

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.56 AU - 3.96 AU

Year: 4783 Days

Day: 14.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 43,470,700 km

• M1: 179,069 km (0.073 R)
• M2: 3,035,341 km (0.056 R)
• M3: 4,286,428 km (0.054 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 892.8

Radius: 14.6

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 3.78 AU - 4.96 AU

Year: 5993 Days

Day: 10.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 43,470,700 km

• M1: 181,612 km (0.069 R)
• M2: 1,328,130 km (0.062 R)
• M3: 2,119,054 km (0.12 R)
• M4: 2,641,898 km (0.109 R)
• M5: 3,188,230 km (0.099 R)
• M6: 3,905,252 km (0.066 R)
• M7: 5,664,224 km (0.07 R)
• M8: 9,266,840 km (0.098 R)
• M9: 10,588,986 km (0.076 R)
• M10: 11,122,153 km (0.086 R)
• M11: 11,826,759 km (0.115 R)
• M12: 13,605,777 km (0.091 R)
• M13: 15,250,157 km (0.057 R)
• M14: 15,931,276 km (0.1 R)
• M15: 18,234,335 km (0.093 R)
• M16: 26,027,337 km (0.086 R)
• M17: 29,683,957 km (0.066 R)
• M18: 34,932,449 km (0.067 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.8

Radius: 9.9

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 4.51 AU - 5.63 AU

Year: 7489 Days

Day: 12.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 155.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 43,470,700 km

• M1: 123,568 km (0.104 R)
• M2: 462,108 km (0.096 R)
• M3: 840,142 km (0.112 R)
• M4: 1,674,898 km (0.1 R)
• M5: 2,084,646 km (0.076 R)
• M6: 2,686,329 km (0.052 R)
• M7: 4,038,245 km (0.068 R)
• M8: 5,345,880 km (0.118 R)
• M9: 5,766,699 km (0.101 R)
• M10: 6,406,230 km (0.096 R)
• M11: 7,056,980 km (0.07 R)
• M12: 8,056,593 km (0.117 R)
• M13: 9,317,853 km (0.102 R)
• M14: 9,751,537 km (0.113 R)
• M15: 11,085,651 km (0.1 R)
• M16: 11,972,766 km (0.109 R)
• M17: 12,853,449 km (0.075 R)
• M18: 13,174,336 km (0.041 R)
• M19: 16,875,388 km (0.109 R)
• M20: 24,005,671 km (0.107 R)
• M21: 30,582,442 km (0.044 R)
• M22: 33,116,780 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 557.7

Radius: 6.5

Gravity: 13.2 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 6.82 AU - 7.6 AU

Year: 12700 Days

Day: 19 Hours

Environment

Temp: -233 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 43,470,700 km

• M1: 83,775 km (0.062 R)
• M2: 312,061 km (0.062 R)
• M3: 796,309 km (0.106 R)
• M4: 1,345,932 km (0.098 R)
• M5: 1,814,323 km (0.081 R)
• M6: 2,608,538 km (0.077 R)
• M7: 7,708,030 km (0.086 R)
• M8: 9,186,506 km (0.116 R)
• M9: 9,483,458 km (0.091 R)
• M10: 9,992,390 km (0.115 R)
• M11: 10,466,017 km (0.084 R)
• M12: 21,232,426 km (0.112 R)
• M13: 21,577,698 km (0.06 R)
• M14: 24,007,466 km (0.037 R)
• M15: 25,239,854 km (0.079 R)
• M16: 25,920,673 km (0.055 R)
• M17: 26,414,496 km (0.102 R)
• M18: 26,813,922 km (0.101 R)
• M19: 36,040,371 km (0.068 R)
• M20: 38,542,545 km (0.108 R)
• M21: 42,783,046 km (0.071 R)
• M22: 43,750,346 km (0.054 R)
• M23: 44,450,165 km (0.087 R)
• M24: 46,739,760 km (0.084 R)
• M25: 47,618,199 km (0.111 R)
• M26: 48,806,605 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 208.4

Radius: 6.5

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 7.94 AU - 8.64 AU

Year: 15658 Days

Day: 24.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 43,470,700 km

• M1: 221,554 km (0.096 R)
• M2: 665,860 km (0.081 R)
• M3: 1,217,577 km (0.09 R)
• M4: 1,516,025 km (0.053 R)
• M5: 2,038,570 km (0.112 R)
• M6: 2,836,974 km (0.092 R)
• M7: 3,159,657 km (0.119 R)
• M8: 3,677,116 km (0.074 R)
• M9: 4,500,054 km (0.045 R)
• M10: 5,802,752 km (0.085 R)
• M11: 6,252,443 km (0.098 R)
• M12: 8,590,658 km (0.104 R)
• M13: 12,783,437 km (0.091 R)
• M14: 13,248,088 km (0.087 R)
• M15: 16,275,949 km (0.096 R)
• M16: 20,910,042 km (0.097 R)
• M17: 23,054,677 km (0.101 R)
• M18: 26,916,247 km (0.089 R)
• M19: 33,211,176 km (0.098 R)
• M20: 33,978,314 km (0.11 R)
• M21: 34,533,322 km (0.053 R)
• M22: 36,004,916 km (0.054 R)
• M23: 36,350,338 km (0.101 R)
• M24: 42,437,625 km (0.037 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 211 - 16,132 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit