🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 702.3

Radius: 12.8

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.74 AU - 0.76 AU

Year: 441 Days

Day: 12.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 31,691,986 km

• M1: 159,172 km (0.051 R)
• M2: 572,661 km (0.108 R)
• M3: 1,073,215 km (0.12 R)
• M4: 1,669,213 km (0.056 R)
• M5: 2,163,784 km (0.112 R)
• M6: 2,605,845 km (0.101 R)
• M7: 3,009,460 km (0.074 R)
• M8: 3,479,048 km (0.119 R)
• M9: 4,024,332 km (0.112 R)
• M10: 4,538,799 km (0.094 R)
• M11: 5,018,859 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496.6

Radius: 14.8

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.59 AU - 0.93 AU

Year: 449 Days

Day: 11.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 31,691,986 km

• M1: 184,005 km (0.112 R)
• M2: 676,182 km (0.078 R)
• M3: 1,247,646 km (0.062 R)
• M4: 1,874,312 km (0.1 R)
• M5: 2,367,237 km (0.084 R)
• M6: 2,856,272 km (0.091 R)
• M7: 3,345,607 km (0.101 R)
• M8: 3,903,756 km (0.062 R)
• M9: 4,635,888 km (0.11 R)
• M10: 5,209,596 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112.7

Radius: 9.3

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.32 AU - 1.54 AU

Year: 1160 Days

Day: 9.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 31,691,986 km

• M1: 115,639 km (0.087 R)
• M2: 914,641 km (0.058 R)
• M3: 1,221,467 km (0.068 R)
• M4: 2,069,088 km (0.104 R)
• M5: 3,081,417 km (0.083 R)
• M6: 3,684,895 km (0.085 R)
• M7: 5,763,258 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103

Radius: 14.9

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.65 AU - 1.93 AU

Year: 1624 Days

Day: 5.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 31,691,986 km

• M1: 185,352 km (0.076 R)
• M2: 695,481 km (0.111 R)
• M3: 1,202,318 km (0.119 R)
• M4: 2,472,105 km (0.107 R)
• M5: 7,324,761 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 884.4

Radius: 9

Gravity: 10.92 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.89 AU - 2.55 AU

Year: 2243 Days

Day: 7.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 31,691,986 km

• M1: 112,498 km (0.1 R)
• M2: 425,905 km (0.09 R)
• M3: 838,646 km (0.107 R)
• M4: 1,511,238 km (0.066 R)
• M5: 1,834,668 km (0.065 R)
• M6: 2,139,399 km (0.079 R)
• M7: 3,622,812 km (0.114 R)
• M8: 3,927,991 km (0.037 R)
• M9: 5,926,020 km (0.103 R)
• M10: 6,324,100 km (0.047 R)
• M11: 6,711,559 km (0.075 R)
• M12: 8,066,018 km (0.052 R)
• M13: 8,489,081 km (0.052 R)
• M14: 9,921,331 km (0.119 R)
• M15: 11,961,098 km (0.114 R)
• M16: 12,340,628 km (0.091 R)
• M17: 13,079,342 km (0.086 R)
• M18: 14,265,803 km (0.075 R)
• M19: 15,275,289 km (0.101 R)
• M20: 15,672,172 km (0.092 R)
• M21: 17,489,786 km (0.07 R)
• M22: 18,533,231 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.8

Radius: 14.2

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 2.37 AU - 2.75 AU

Year: 2778 Days

Day: 12.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 31,691,986 km

• M1: 178,620 km (0.096 R)
• M2: 670,797 km (0.118 R)
• M3: 1,116,748 km (0.073 R)
• M4: 1,626,727 km (0.09 R)
• M5: 2,693,360 km (0.101 R)
• M6: 3,216,504 km (0.068 R)
• M7: 4,093,147 km (0.048 R)
• M8: 5,017,812 km (0.067 R)
• M9: 6,126,033 km (0.085 R)
• M10: 7,309,202 km (0.096 R)
• M11: 9,690,052 km (0.116 R)
• M12: 10,436,247 km (0.102 R)
• M13: 13,560,449 km (0.062 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 440.4

Radius: 14.9

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 2.41 AU - 3.47 AU

Year: 3419 Days

Day: 12.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 31,691,986 km

• M1: 185,352 km (0.105 R)
• M2: 694,583 km (0.117 R)
• M3: 1,506,899 km (0.066 R)
• M4: 2,360,654 km (0.109 R)
• M5: 2,891,278 km (0.111 R)
• M6: 3,800,235 km (0.043 R)
• M7: 4,386,060 km (0.069 R)
• M8: 5,464,062 km (0.076 R)
• M9: 7,298,431 km (0.074 R)
• M10: 8,307,170 km (0.101 R)
• M11: 8,914,388 km (0.071 R)
• M12: 9,587,428 km (0.114 R)
• M13: 11,398,909 km (0.091 R)
• M14: 12,278,245 km (0.105 R)
• M15: 12,978,363 km (0.061 R)
• M16: 14,220,026 km (0.087 R)
• M17: 14,992,399 km (0.092 R)
• M18: 16,307,065 km (0.088 R)
• M19: 17,046,229 km (0.035 R)
• M20: 17,587,623 km (0.086 R)
• M21: 18,084,887 km (0.077 R)
• M22: 18,819,562 km (0.108 R)
• M23: 19,339,863 km (0.09 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.6

Radius: 9.3

Gravity: 9.98 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 3.58 AU - 3.78 AU

Year: 4788 Days

Day: 11.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 31,691,986 km

• M1: 116,088 km (0.083 R)
• M2: 447,298 km (0.073 R)
• M3: 846,574 km (0.081 R)
• M4: 1,469,500 km (0.1 R)
• M5: 1,945,820 km (0.106 R)
• M6: 3,012,303 km (0.055 R)
• M7: 3,899,268 km (0.085 R)
• M8: 4,950,942 km (0.1 R)
• M9: 5,572,371 km (0.077 R)
• M10: 6,149,968 km (0.117 R)
• M11: 6,868,188 km (0.081 R)
• M12: 7,677,662 km (0.073 R)
• M13: 9,152,547 km (0.112 R)
• M14: 9,697,981 km (0.081 R)
• M15: 13,224,901 km (0.107 R)
• M16: 15,448,673 km (0.115 R)
• M17: 16,041,380 km (0.107 R)
• M18: 20,130,039 km (0.058 R)
• M19: 20,481,594 km (0.091 R)
• M20: 23,058,118 km (0.08 R)
• M21: 23,598,316 km (0.047 R)
• M22: 23,989,215 km (0.106 R)
• M23: 27,188,366 km (0.118 R)
• M24: 27,531,843 km (0.066 R)
• M25: 30,384,225 km (0.077 R)
• M26: 31,597,314 km (0.062 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 167 - 15,318 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit