🌌 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: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.6

Radius: 11.9

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.57 AU - 0.71 AU

Year: 360 Days

Day: 7.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 64,304,939 km

• M1: 147,952 km (0.086 R)
• M2: 539,300 km (0.101 R)
• M3: 941,270 km (0.065 R)
• M4: 1,535,173 km (0.116 R)
• M5: 1,968,858 km (0.109 R)
• M6: 2,955,306 km (0.042 R)
• M7: 3,339,473 km (0.083 R)
• M8: 3,858,428 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.3

Radius: 14.9

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.89 AU - 1.03 AU

Year: 661 Days

Day: 11.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 64,304,939 km

• M1: 187,147 km (0.078 R)
• M2: 922,271 km (0.074 R)
• M3: 1,455,288 km (0.071 R)
• M4: 1,920,238 km (0.113 R)
• M5: 2,820,518 km (0.094 R)
• M6: 3,604,561 km (0.114 R)
• M7: 4,073,400 km (0.093 R)
• M8: 4,623,173 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.2

Radius: 11.7

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.16 AU - 1.48 AU

Year: 1066 Days

Day: 13.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 64,304,939 km

• M1: 149,598 km (0.056 R)
• M2: 609,462 km (0.099 R)
• M3: 1,014,124 km (0.097 R)
• M4: 1,675,047 km (0.084 R)
• M5: 2,214,198 km (0.033 R)
• M6: 3,182,844 km (0.078 R)
• M7: 3,856,633 km (0.095 R)
• M8: 5,921,981 km (0.06 R)
• M9: 7,450,124 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.9

Radius: 10.4

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.06 AU - 1.7 AU

Year: 1140 Days

Day: 10.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 64,304,939 km

• M1: 132,095 km (0.102 R)
• M2: 593,156 km (0.109 R)
• M3: 1,205,160 km (0.092 R)
• M4: 1,907,971 km (0.038 R)
• M5: 3,279,485 km (0.11 R)
• M6: 3,694,170 km (0.065 R)
• M7: 5,387,319 km (0.109 R)
• M8: 6,225,515 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.3

Radius: 11.4

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 3.12 AU - 3.64 AU

Year: 4368 Days

Day: 6.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 64,304,939 km

• M1: 141,819 km (0.113 R)
• M2: 537,505 km (0.071 R)
• M3: 985,102 km (0.076 R)
• M4: 1,370,765 km (0.102 R)
• M5: 1,924,726 km (0.097 R)
• M6: 2,399,550 km (0.088 R)
• M7: 3,650,038 km (0.108 R)
• M8: 5,028,882 km (0.058 R)
• M9: 6,234,042 km (0.055 R)
• M10: 7,282,574 km (0.095 R)
• M11: 7,657,167 km (0.071 R)
• M12: 10,015,428 km (0.062 R)
• M13: 11,633,778 km (0.117 R)
• M14: 13,168,353 km (0.061 R)
• M15: 13,880,588 km (0.086 R)
• M16: 15,161,146 km (0.083 R)
• M17: 16,287,169 km (0.055 R)
• M18: 17,108,012 km (0.079 R)
• M19: 18,328,133 km (0.103 R)
• M20: 21,009,525 km (0.11 R)
• M21: 23,130,075 km (0.051 R)
• M22: 24,696,963 km (0.079 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 685.7

Radius: 6

Gravity: 19.05 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 4.87 AU - 8.09 AU

Year: 11595 Days

Day: 22.8 Hours

Environment

Temp: -236 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 64,304,939 km

• M1: 74,649 km (0.072 R)
• M2: 307,723 km (0.034 R)
• M3: 734,526 km (0.096 R)
• M4: 1,047,035 km (0.118 R)
• M5: 1,742,217 km (0.104 R)
• M6: 2,795,087 km (0.078 R)
• M7: 3,043,569 km (0.096 R)
• M8: 3,851,696 km (0.041 R)
• M9: 4,454,576 km (0.044 R)
• M10: 4,826,327 km (0.107 R)
• M11: 6,178,392 km (0.099 R)
• M12: 6,484,170 km (0.064 R)
• M13: 7,209,121 km (0.097 R)
• M14: 7,634,578 km (0.112 R)
• M15: 9,011,626 km (0.107 R)
• M16: 10,385,533 km (0.046 R)
• M17: 10,763,417 km (0.089 R)
• M18: 11,835,286 km (0.103 R)
• M19: 12,247,578 km (0.063 R)
• M20: 14,255,181 km (0.038 R)
• M21: 14,453,997 km (0.112 R)
• M22: 15,756,396 km (0.099 R)
• M23: 16,399,667 km (0.083 R)
• M24: 17,134,940 km (0.092 R)
• M25: 19,553,938 km (0.047 R)
• M26: 25,152,937 km (0.037 R)
• M27: 30,951,650 km (0.106 R)
• M28: 35,114,659 km (0.115 R)
• M29: 37,079,179 km (0.077 R)
• M30: 48,306,200 km (0.065 R)
• M31: 52,289,393 km (0.052 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 44.3

Radius: 5.9

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 8.4 AU - 8.58 AU

Year: 17389 Days

Day: 19.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,304,939 km

• M1: 73,303 km (0.11 R)
• M2: 410,945 km (0.055 R)
• M3: 708,944 km (0.098 R)
• M4: 1,706,762 km (0.114 R)
• M5: 2,670,023 km (0.113 R)
• M6: 3,258,690 km (0.106 R)
• M7: 4,111,697 km (0.085 R)
• M8: 4,466,992 km (0.087 R)
• M9: 8,419,069 km (0.12 R)
• M10: 10,216,188 km (0.119 R)
• M11: 11,639,762 km (0.101 R)
• M12: 12,254,310 km (0.101 R)
• M13: 17,114,296 km (0.099 R)
• M14: 23,864,152 km (0.072 R)
• M15: 26,189,950 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 170

Radius: 7.1

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 7.56 AU - 10.8 AU

Year: 19551 Days

Day: 17.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,304,939 km

• M1: 89,160 km (0.107 R)
• M2: 470,037 km (0.12 R)
• M3: 1,657,844 km (0.117 R)
• M4: 4,315,151 km (0.096 R)
• M5: 5,755,479 km (0.081 R)
• M6: 6,214,744 km (0.108 R)
• M7: 10,498,330 km (0.088 R)
• M8: 18,451,102 km (0.095 R)
• M9: 22,311,026 km (0.091 R)
• M10: 22,655,102 km (0.111 R)
• M11: 40,776,191 km (0.037 R)
• M12: 44,197,943 km (0.062 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 405.6

Radius: 4.3

Gravity: 21.94 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 8.57 AU - 10.19 AU

Year: 20194 Days

Day: 15.6 Hours

Environment

Temp: -244 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,304,939 km

• M1: 68,815 km (0.084 R)
• M2: 204,650 km (0.106 R)
• M3: 537,206 km (0.091 R)
• M4: 2,534,487 km (0.111 R)
• M5: 3,076,181 km (0.033 R)
• M6: 3,255,549 km (0.09 R)
• M7: 4,353,448 km (0.096 R)
• M8: 5,908,368 km (0.117 R)
• M9: 8,328,263 km (0.101 R)
• M10: 11,765,573 km (0.109 R)
• M11: 15,890,884 km (0.073 R)
• M12: 19,033,935 km (0.038 R)
• M13: 29,615,591 km (0.107 R)
• M14: 30,193,637 km (0.103 R)
• M15: 36,658,958 km (0.082 R)
• M16: 43,988,506 km (0.073 R)
• M17: 45,196,210 km (0.089 R)
• M18: 53,761,136 km (0.091 R)
• M19: 55,839,799 km (0.119 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 248 - 17,582 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit