🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.8 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177.2

Radius: 14.8

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.45 AU - 1.75 AU

Year: 1307 Days

Day: 5.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,879,378 km

• M1: 184,005 km (0.073 R)
• M2: 1,270,236 km (0.106 R)
• M3: 2,494,096 km (0.103 R)
• M4: 3,359,968 km (0.041 R)
• M5: 4,818,248 km (0.091 R)
• M6: 6,482,525 km (0.085 R)
• M7: 7,772,956 km (0.034 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.9

Radius: 13.5

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.34 AU - 2.1 AU

Year: 1456 Days

Day: 13.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 74,879,378 km

• M1: 169,345 km (0.038 R)
• M2: 950,096 km (0.051 R)
• M3: 1,397,543 km (0.066 R)
• M4: 2,807,952 km (0.118 R)
• M5: 3,656,172 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.6

Radius: 13.3

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.8 AU - 3 AU

Year: 2401 Days

Day: 13 Hours

Environment

Temp: -201 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,879,378 km

• M1: 165,455 km (0.104 R)
• M2: 641,476 km (0.025 R)
• M3: 1,098,048 km (0.034 R)
• M4: 2,436,650 km (0.118 R)
• M5: 3,079,023 km (0.054 R)
• M6: 4,467,740 km (0.092 R)
• M7: 4,951,989 km (0.044 R)
• M8: 5,707,308 km (0.115 R)
• M9: 6,722,180 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145

Radius: 13

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 5.08 AU - 5.32 AU

Year: 7656 Days

Day: 5.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,879,378 km

• M1: 163,211 km (0.106 R)
• M2: 999,613 km (0.098 R)
• M3: 2,518,480 km (0.072 R)
• M4: 4,490,180 km (0.111 R)
• M5: 5,766,400 km (0.094 R)
• M6: 6,184,526 km (0.11 R)
• M7: 6,652,917 km (0.12 R)
• M8: 7,595,383 km (0.106 R)
• M9: 8,306,571 km (0.075 R)
• M10: 9,210,741 km (0.11 R)
• M11: 10,020,065 km (0.106 R)
• M12: 11,044,811 km (0.101 R)
• M13: 15,637,316 km (0.117 R)
• M14: 19,509,507 km (0.033 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 87.4

Radius: 3.8

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 4.59 AU - 7.63 AU

Year: 9752 Days

Day: 16.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 74,879,378 km

• M1: 56,398 km (0.102 R)
• M2: 251,324 km (0.084 R)
• M3: 523,892 km (0.11 R)
• M4: 1,296,116 km (0.065 R)
• M5: 2,219,733 km (0.119 R)
• M6: 4,318,741 km (0.093 R)
• M7: 7,428,282 km (0.12 R)
• M8: 8,523,488 km (0.111 R)
• M9: 9,336,104 km (0.113 R)
• M10: 10,361,448 km (0.102 R)
• M11: 10,691,461 km (0.08 R)
• M12: 12,773,414 km (0.096 R)
• M13: 14,285,400 km (0.085 R)
• M14: 14,540,015 km (0.091 R)
• M15: 14,745,713 km (0.089 R)
• M16: 15,110,582 km (0.091 R)
• M17: 15,858,272 km (0.109 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 712.9

Radius: 7.6

Gravity: 12.34 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 7.96 AU - 10.72 AU

Year: 18430 Days

Day: 20.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 74,879,378 km

• M1: 94,695 km (0.119 R)
• M2: 626,965 km (0.079 R)
• M3: 881,580 km (0.112 R)
• M4: 1,406,070 km (0.095 R)
• M5: 1,873,115 km (0.059 R)
• M6: 2,352,127 km (0.111 R)
• M7: 2,621,104 km (0.108 R)
• M8: 2,910,427 km (0.061 R)
• M9: 3,248,069 km (0.072 R)
• M10: 3,728,727 km (0.087 R)
• M11: 4,095,990 km (0.114 R)
• M12: 5,812,027 km (0.049 R)
• M13: 8,569,415 km (0.1 R)
• M14: 9,598,349 km (0.097 R)
• M15: 10,055,370 km (0.057 R)
• M16: 12,628,753 km (0.036 R)
• M17: 13,247,340 km (0.108 R)
• M18: 16,004,279 km (0.084 R)
• M19: 18,416,096 km (0.058 R)
• M20: 19,662,845 km (0.103 R)
• M21: 20,213,963 km (0.061 R)
• M22: 21,347,167 km (0.107 R)
• M23: 21,637,088 km (0.107 R)
• M24: 22,522,259 km (0.067 R)
• M25: 22,822,651 km (0.064 R)
• M26: 24,893,834 km (0.043 R)
• M27: 28,697,210 km (0.066 R)
• M28: 29,287,374 km (0.1 R)
• M29: 30,859,647 km (0.083 R)
• M30: 58,562,929 km (0.084 R)
• M31: 59,131,102 km (0.036 R)
• M32: 59,511,978 km (0.06 R)
• M33: 61,441,042 km (0.109 R)
• M34: 64,211,146 km (0.062 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 506.3

Radius: 5.3

Gravity: 18.02 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 8.06 AU - 10.92 AU

Year: 18876 Days

Day: 19.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 74,879,378 km

• M1: 67,020 km (0.113 R)
• M2: 255,214 km (0.042 R)
• M3: 2,378,157 km (0.074 R)
• M4: 2,551,990 km (0.065 R)
• M5: 2,828,896 km (0.099 R)
• M6: 3,281,579 km (0.03 R)
• M7: 4,110,501 km (0.073 R)
• M8: 7,798,238 km (0.064 R)
• M9: 10,363,392 km (0.108 R)
• M10: 14,421,085 km (0.118 R)
• M11: 22,169,357 km (0.114 R)
• M12: 26,215,830 km (0.062 R)
• M13: 28,525,172 km (0.071 R)
• M14: 30,255,421 km (0.075 R)
• M15: 31,810,342 km (0.09 R)
• M16: 34,177,878 km (0.082 R)
• M17: 34,819,802 km (0.113 R)
• M18: 49,733,663 km (0.069 R)
• M19: 52,064,098 km (0.092 R)
• M20: 57,300,921 km (0.045 R)
• M21: 58,388,797 km (0.053 R)
• M22: 62,304,671 km (0.107 R)
• M23: 64,424,173 km (0.044 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 463

Radius: 3.4

Gravity: 40.05 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 9.63 AU - 12.49 AU

Year: 23749 Days

Day: 22 Hours

Environment

Temp: -233 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 74,879,378 km

• M1: 42,935 km (0.1 R)
• M2: 265,686 km (0.113 R)
• M3: 531,671 km (0.114 R)
• M4: 677,678 km (0.102 R)
• M5: 1,983,069 km (0.06 R)
• M6: 3,711,374 km (0.064 R)
• M7: 4,052,307 km (0.107 R)
• M8: 5,909,714 km (0.117 R)
• M9: 9,119,037 km (0.089 R)
• M10: 10,204,968 km (0.052 R)
• M11: 10,625,787 km (0.077 R)
• M12: 11,183,787 km (0.109 R)
• M13: 12,357,981 km (0.117 R)
• M14: 14,643,836 km (0.062 R)
• M15: 15,024,862 km (0.086 R)
• M16: 18,844,395 km (0.112 R)
• M17: 20,030,556 km (0.07 R)
• M18: 22,050,277 km (0.05 R)
• M19: 24,096,327 km (0.076 R)
• M20: 25,165,204 km (0.115 R)
• M21: 25,711,386 km (0.097 R)
• M22: 29,274,957 km (0.11 R)
• M23: 31,740,629 km (0.097 R)
• M24: 32,635,224 km (0.105 R)
• M25: 42,217,417 km (0.092 R)
• M26: 51,565,040 km (0.104 R)
• M27: 56,251,642 km (0.048 R)
• M28: 57,184,235 km (0.102 R)
• M29: 64,611,769 km (0.1 R)
• M30: 66,460,500 km (0.11 R)
• M31: 68,133,004 km (0.118 R)
• M32: 72,217,474 km (0.032 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 226 - 14,882 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit