🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 883.6

Radius: 14.2

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.86 AU - 0.98 AU

Year: 561 Days

Day: 7.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,644,870 km

• M1: 176,525 km (0.09 R)
• M2: 718,369 km (0.086 R)
• M3: 1,161,777 km (0.038 R)
• M4: 1,611,618 km (0.052 R)
• M5: 2,334,176 km (0.114 R)
• M6: 2,816,629 km (0.117 R)
• M7: 3,873,837 km (0.106 R)
• M8: 4,356,140 km (0.099 R)
• M9: 5,713,891 km (0.112 R)
• M10: 6,441,086 km (0.11 R)
• M11: 7,164,840 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.4

Radius: 13.2

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.94 AU - 0.96 AU

Year: 589 Days

Day: 9.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,644,870 km

• M1: 164,109 km (0.102 R)
• M2: 666,010 km (0.06 R)
• M3: 1,251,835 km (0.09 R)
• M4: 1,871,320 km (0.058 R)
• M5: 2,430,816 km (0.06 R)
• M6: 3,043,569 km (0.083 R)
• M7: 3,638,669 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.3

Radius: 13.6

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.9 AU - 1.28 AU

Year: 724 Days

Day: 13.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,644,870 km

• M1: 169,195 km (0.107 R)
• M2: 658,829 km (0.116 R)
• M3: 1,083,238 km (0.059 R)
• M4: 2,457,295 km (0.088 R)
• M5: 2,950,220 km (0.118 R)
• M6: 3,405,596 km (0.105 R)
• M7: 4,035,103 km (0.037 R)
• M8: 4,515,612 km (0.119 R)
• M9: 4,989,538 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.6

Radius: 8.9

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.36 AU - 1.76 AU

Year: 1239 Days

Day: 14 Hours

Environment

Temp: -189 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,644,870 km

• M1: 110,702 km (0.112 R)
• M2: 496,067 km (0.062 R)
• M3: 1,197,830 km (0.062 R)
• M4: 1,659,489 km (0.098 R)
• M5: 2,085,245 km (0.042 R)
• M6: 3,885,057 km (0.032 R)
• M7: 4,623,921 km (0.051 R)
• M8: 5,781,958 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.6

Radius: 10.3

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 3.04 AU - 4.58 AU

Year: 4728 Days

Day: 9.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,644,870 km

• M1: 128,056 km (0.115 R)
• M2: 465,997 km (0.071 R)
• M3: 1,132,755 km (0.09 R)
• M4: 1,459,776 km (0.066 R)
• M5: 1,798,316 km (0.056 R)
• M6: 2,777,284 km (0.109 R)
• M7: 3,128,091 km (0.084 R)
• M8: 5,434,891 km (0.069 R)
• M9: 6,047,644 km (0.102 R)
• M10: 6,771,099 km (0.059 R)
• M11: 8,018,147 km (0.079 R)
• M12: 8,466,043 km (0.062 R)
• M13: 10,825,949 km (0.108 R)
• M14: 12,229,776 km (0.115 R)
• M15: 13,437,479 km (0.114 R)
• M16: 14,339,853 km (0.026 R)
• M17: 23,745,221 km (0.11 R)
• M18: 25,860,236 km (0.103 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 365.1

Radius: 4.9

Gravity: 15.21 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 7.44 AU - 11.74 AU

Year: 18883 Days

Day: 15 Hours

Environment

Temp: -220 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,644,870 km

• M1: 60,886 km (0.114 R)
• M2: 357,539 km (0.119 R)
• M3: 763,847 km (0.116 R)
• M4: 1,950,307 km (0.087 R)
• M5: 5,796,469 km (0.044 R)
• M6: 6,218,783 km (0.093 R)
• M7: 8,068,262 km (0.112 R)
• M8: 8,692,534 km (0.111 R)
• M9: 15,976,155 km (0.095 R)
• M10: 18,792,634 km (0.07 R)
• M11: 33,123,362 km (0.085 R)
• M12: 35,719,334 km (0.059 R)
• M13: 40,067,695 km (0.117 R)
• M14: 42,439,719 km (0.106 R)
• M15: 47,768,096 km (0.074 R)
• M16: 53,359,765 km (0.098 R)
• M17: 57,262,325 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 82.7

Radius: 4.8

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 7.72 AU - 11.7 AU

Year: 19238 Days

Day: 24.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 36,644,870 km

• M1: 70,161 km (0.117 R)
• M2: 245,789 km (0.045 R)
• M3: 1,170,903 km (0.083 R)
• M4: 1,897,799 km (0.064 R)
• M5: 2,180,239 km (0.042 R)
• M6: 3,071,095 km (0.115 R)
• M7: 3,620,717 km (0.061 R)
• M8: 4,884,221 km (0.077 R)
• M9: 5,852,568 km (0.085 R)
• M10: 6,978,591 km (0.081 R)
• M11: 7,766,224 km (0.071 R)
• M12: 8,569,714 km (0.119 R)
• M13: 8,779,001 km (0.052 R)
• M14: 9,471,640 km (0.1 R)
• M15: 15,248,361 km (0.102 R)
• M16: 17,555,161 km (0.107 R)
• M17: 17,825,035 km (0.115 R)
• M18: 18,511,689 km (0.115 R)
• M19: 20,903,161 km (0.08 R)
• M20: 21,666,559 km (0.062 R)
• M21: 24,317,732 km (0.111 R)
• M22: 25,247,333 km (0.117 R)
• M23: 25,504,941 km (0.077 R)
• M24: 26,200,421 km (0.081 R)
• M25: 30,543,846 km (0.104 R)
• M26: 34,493,379 km (0.1 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 234 - 17,435 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit