🌌 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 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.1

Radius: 13.4

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.5 AU - 0.76 AU

Year: 351 Days

Day: 14.4 Hours

Environment

Temp: -153 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 42,171,627 km

• M1: 166,951 km (0.065 R)
• M2: 1,384,079 km (0.116 R)
• M3: 1,988,006 km (0.062 R)
• M4: 3,199,450 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 965.8

Radius: 13

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.8 AU - 0.92 AU

Year: 561 Days

Day: 6.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,171,627 km

• M1: 161,865 km (0.067 R)
• M2: 658,829 km (0.115 R)
• M3: 1,102,686 km (0.075 R)
• M4: 1,574,817 km (0.051 R)
• M5: 1,981,723 km (0.099 R)
• M6: 2,597,019 km (0.114 R)
• M7: 3,161,452 km (0.026 R)
• M8: 3,668,439 km (0.09 R)
• M9: 4,124,712 km (0.113 R)
• M10: 4,897,385 km (0.047 R)
• M11: 5,380,886 km (0.063 R)
• M12: 6,010,992 km (0.097 R)
• M13: 7,286,912 km (0.037 R)
• M14: 7,826,811 km (0.059 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749.5

Radius: 8.2

Gravity: 11.15 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.87 AU - 1.11 AU

Year: 692 Days

Day: 9.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 42,171,627 km

• M1: 102,026 km (0.092 R)
• M2: 428,149 km (0.088 R)
• M3: 702,811 km (0.084 R)
• M4: 994,826 km (0.099 R)
• M5: 1,251,985 km (0.065 R)
• M6: 1,516,025 km (0.087 R)
• M7: 1,834,818 km (0.112 R)
• M8: 2,158,996 km (0.075 R)
• M9: 2,711,611 km (0.099 R)
• M10: 3,009,161 km (0.049 R)
• M11: 3,289,059 km (0.119 R)
• M12: 3,572,547 km (0.107 R)
• M13: 4,329,811 km (0.06 R)
• M14: 4,977,869 km (0.098 R)
• M15: 6,139,197 km (0.071 R)
• M16: 6,487,012 km (0.088 R)
• M17: 7,773,853 km (0.091 R)
• M18: 8,060,034 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.8

Radius: 12

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1 AU - 1.5 AU

Year: 982 Days

Day: 6.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,171,627 km

• M1: 149,448 km (0.089 R)
• M2: 760,406 km (0.109 R)
• M3: 1,663,528 km (0.07 R)
• M4: 3,077,378 km (0.085 R)
• M5: 3,609,647 km (0.117 R)
• M6: 4,189,488 km (0.049 R)
• M7: 4,919,077 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445

Radius: 8.5

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.53 AU - 1.95 AU

Year: 1613 Days

Day: 10.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,171,627 km

• M1: 105,766 km (0.111 R)
• M2: 376,388 km (0.112 R)
• M3: 769,681 km (0.085 R)
• M4: 1,095,954 km (0.116 R)
• M5: 1,396,496 km (0.089 R)
• M6: 1,752,389 km (0.102 R)
• M7: 2,168,421 km (0.088 R)
• M8: 2,522,669 km (0.079 R)
• M9: 3,155,617 km (0.111 R)
• M10: 3,692,674 km (0.057 R)
• M11: 4,009,073 km (0.12 R)
• M12: 4,545,531 km (0.051 R)
• M13: 6,188,266 km (0.112 R)
• M14: 7,155,865 km (0.096 R)
• M15: 7,491,113 km (0.075 R)
• M16: 7,809,906 km (0.077 R)
• M17: 8,221,001 km (0.082 R)
• M18: 8,997,564 km (0.113 R)
• M19: 9,665,668 km (0.085 R)
• M20: 10,829,839 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.7

Radius: 15

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.11 AU - 2.29 AU

Year: 2294 Days

Day: 6.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,171,627 km

• M1: 191,186 km (0.099 R)
• M2: 792,420 km (0.088 R)
• M3: 1,632,562 km (0.103 R)
• M4: 2,294,083 km (0.102 R)
• M5: 2,961,290 km (0.109 R)
• M6: 4,881,379 km (0.109 R)
• M7: 5,969,853 km (0.038 R)
• M8: 7,529,710 km (0.119 R)
• M9: 8,626,561 km (0.115 R)
• M10: 9,551,226 km (0.042 R)
• M11: 10,179,986 km (0.12 R)
• M12: 11,061,267 km (0.1 R)
• M13: 12,642,666 km (0.098 R)
• M14: 14,734,044 km (0.108 R)
• M15: 15,432,666 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 734.2

Radius: 3.8

Gravity: 50.84 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 5.82 AU - 7.7 AU

Year: 12355 Days

Day: 17.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 42,171,627 km

• M1: 47,273 km (0.117 R)
• M2: 212,279 km (0.087 R)
• M3: 334,351 km (0.104 R)
• M4: 648,208 km (0.11 R)
• M5: 877,092 km (0.104 R)
• M6: 1,182,870 km (0.057 R)
• M7: 1,617,153 km (0.085 R)
• M8: 1,862,045 km (0.102 R)
• M9: 2,112,322 km (0.079 R)
• M10: 2,245,763 km (0.094 R)
• M11: 2,572,036 km (0.119 R)
• M12: 2,814,086 km (0.09 R)
• M13: 5,981,372 km (0.115 R)
• M14: 7,358,270 km (0.049 R)
• M15: 7,489,169 km (0.078 R)
• M16: 8,213,222 km (0.113 R)
• M17: 9,232,881 km (0.051 R)
• M18: 9,538,959 km (0.073 R)
• M19: 9,799,259 km (0.067 R)
• M20: 10,117,902 km (0.077 R)
• M21: 11,578,426 km (0.114 R)
• M22: 14,496,782 km (0.051 R)
• M23: 22,546,344 km (0.077 R)
• M24: 24,917,769 km (0.062 R)
• M25: 28,616,876 km (0.04 R)
• M26: 31,735,094 km (0.058 R)
• M27: 34,949,204 km (0.068 R)
• M28: 38,899,186 km (0.104 R)
• M29: 40,099,260 km (0.115 R)
• M30: 42,713,633 km (0.026 R)
• M31: 45,585,762 km (0.098 R)
• M32: 46,323,429 km (0.097 R)
• M33: 49,663,800 km (0.065 R)
• M34: 53,161,249 km (0.083 R)
• M35: 55,805,391 km (0.114 R)
• M36: 56,310,733 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 114.4

Radius: 5.8

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 7.68 AU - 11.08 AU

Year: 20194 Days

Day: 20 Hours

Environment

Temp: -227 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,171,627 km

• M1: 72,106 km (0.07 R)
• M2: 676,182 km (0.108 R)
• M3: 4,471,032 km (0.081 R)
• M4: 8,587,217 km (0.067 R)
• M5: 18,699,135 km (0.093 R)
• M6: 21,145,659 km (0.12 R)
• M7: 22,695,044 km (0.088 R)
• M8: 27,986,470 km (0.118 R)
• M9: 30,253,925 km (0.096 R)
• M10: 31,901,746 km (0.073 R)
• M11: 38,258,010 km (0.099 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 501 - 16,711 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit