🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.63

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.62 AU - 0.72 AU

Year: 349 Days

Day: 32 Hours

Environment

Temp: -129 °C

Axial Tilt: 32.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.9

Radius: 13.6

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.61 AU - 0.79 AU

Year: 372 Days

Day: 7.9 Hours

Environment

Temp: -132 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 90,791,901 km

• M1: 169,195 km (0.074 R)
• M2: 613,650 km (0.095 R)
• M3: 1,216,530 km (0.04 R)
• M4: 1,684,322 km (0.104 R)
• M5: 2,505,166 km (0.113 R)
• M6: 3,261,084 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.9

Radius: 10.6

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.27 AU - 2.01 AU

Year: 1335 Days

Day: 9.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 90,791,901 km

• M1: 131,945 km (0.09 R)
• M2: 756,367 km (0.087 R)
• M3: 1,096,104 km (0.077 R)
• M4: 1,446,013 km (0.1 R)
• M5: 3,677,714 km (0.101 R)
• M6: 5,357,997 km (0.096 R)
• M7: 9,257,864 km (0.115 R)
• M8: 9,744,656 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 594.7

Radius: 9.7

Gravity: 6.32 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.76 AU - 2.34 AU

Year: 1866 Days

Day: 13.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 90,791,901 km

• M1: 120,875 km (0.094 R)
• M2: 459,864 km (0.093 R)
• M3: 952,789 km (0.107 R)
• M4: 1,658,442 km (0.1 R)
• M5: 2,191,310 km (0.094 R)
• M6: 3,499,244 km (0.114 R)
• M7: 3,806,817 km (0.086 R)
• M8: 4,169,741 km (0.097 R)
• M9: 5,377,445 km (0.097 R)
• M10: 5,835,663 km (0.084 R)
• M11: 6,470,108 km (0.097 R)
• M12: 7,149,881 km (0.104 R)
• M13: 8,050,909 km (0.079 R)
• M14: 12,306,070 km (0.116 R)
• M15: 13,472,934 km (0.114 R)
• M16: 14,362,742 km (0.101 R)
• M17: 14,711,903 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.5

Radius: 9.3

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.37 AU - 2.57 AU

Year: 2468 Days

Day: 5.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 90,791,901 km

• M1: 116,986 km (0.053 R)
• M2: 687,552 km (0.104 R)
• M3: 1,027,887 km (0.066 R)
• M4: 1,498,223 km (0.082 R)
• M5: 2,684,833 km (0.094 R)
• M6: 3,125,848 km (0.09 R)
• M7: 3,539,635 km (0.089 R)
• M8: 3,893,584 km (0.119 R)
• M9: 4,601,331 km (0.072 R)
• M10: 5,042,795 km (0.092 R)
• M11: 6,118,553 km (0.11 R)
• M12: 6,471,454 km (0.043 R)
• M13: 9,165,263 km (0.036 R)
• M14: 9,746,451 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224

Radius: 13.7

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 3.86 AU - 4.62 AU

Year: 5551 Days

Day: 6.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 90,791,901 km

• M1: 170,392 km (0.094 R)
• M2: 715,826 km (0.064 R)
• M3: 1,954,945 km (0.082 R)
• M4: 2,468,514 km (0.089 R)
• M5: 3,336,930 km (0.099 R)
• M6: 4,378,430 km (0.105 R)
• M7: 5,369,516 km (0.092 R)
• M8: 6,419,095 km (0.077 R)
• M9: 9,887,073 km (0.112 R)
• M10: 12,781,193 km (0.057 R)
• M11: 13,716,030 km (0.049 R)
• M12: 15,827,455 km (0.102 R)
• M13: 17,689,051 km (0.066 R)
• M14: 18,909,620 km (0.102 R)
• M15: 19,570,842 km (0.083 R)
• M16: 20,247,623 km (0.096 R)
• M17: 21,647,859 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327

Radius: 8.3

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 4.4 AU - 5.34 AU

Year: 6833 Days

Day: 10.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 90,791,901 km

• M1: 103,223 km (0.101 R)
• M2: 508,633 km (0.091 R)
• M3: 773,571 km (0.057 R)
• M4: 1,488,349 km (0.083 R)
• M5: 1,755,830 km (0.113 R)
• M6: 2,373,669 km (0.078 R)
• M7: 2,707,123 km (0.078 R)
• M8: 2,977,596 km (0.083 R)
• M9: 3,266,021 km (0.078 R)
• M10: 5,107,720 km (0.077 R)
• M11: 5,960,578 km (0.066 R)
• M12: 8,466,940 km (0.068 R)
• M13: 9,370,661 km (0.086 R)
• M14: 10,036,372 km (0.106 R)
• M15: 10,337,362 km (0.11 R)
• M16: 13,427,456 km (0.118 R)
• M17: 14,709,211 km (0.082 R)
• M18: 16,423,602 km (0.044 R)
• M19: 16,721,900 km (0.057 R)
• M20: 18,076,958 km (0.07 R)
• M21: 21,711,139 km (0.073 R)
• M22: 22,433,846 km (0.077 R)
• M23: 22,949,061 km (0.099 R)
• M24: 24,932,430 km (0.083 R)
• M25: 26,046,336 km (0.079 R)
• M26: 26,862,093 km (0.103 R)
• M27: 27,193,153 km (0.076 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 898.5

Radius: 8.4

Gravity: 12.73 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 3.73 AU - 6.05 AU

Year: 6875 Days

Day: 5.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 90,791,901 km

• M1: 104,419 km (0.067 R)
• M2: 509,680 km (0.099 R)
• M3: 804,537 km (0.12 R)
• M4: 1,415,495 km (0.117 R)
• M5: 1,692,700 km (0.049 R)
• M6: 2,038,421 km (0.103 R)
• M7: 2,541,518 km (0.088 R)
• M8: 2,832,785 km (0.083 R)
• M9: 5,449,102 km (0.096 R)
• M10: 8,822,834 km (0.105 R)
• M11: 9,495,426 km (0.086 R)
• M12: 10,057,764 km (0.107 R)
• M13: 11,613,582 km (0.058 R)
• M14: 12,923,461 km (0.118 R)
• M15: 14,208,357 km (0.066 R)
• M16: 15,321,365 km (0.026 R)
• M17: 17,511,029 km (0.09 R)
• M18: 19,901,304 km (0.084 R)
• M19: 22,996,783 km (0.059 R)
• M20: 23,584,553 km (0.114 R)
• M21: 25,141,717 km (0.109 R)
• M22: 25,675,632 km (0.062 R)
• M23: 26,035,714 km (0.074 R)
• M24: 28,942,251 km (0.109 R)
• M25: 29,332,402 km (0.105 R)
• M26: 30,826,736 km (0.084 R)
• M27: 34,619,042 km (0.113 R)
• M28: 36,400,154 km (0.089 R)
• M29: 36,968,925 km (0.11 R)
• M30: 38,124,569 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 659.3

Radius: 6.9

Gravity: 13.85 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 6.48 AU - 8.02 AU

Year: 12412 Days

Day: 23.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 90,791,901 km

• M1: 90,507 km (0.065 R)
• M2: 340,036 km (0.108 R)
• M3: 643,420 km (0.112 R)
• M4: 928,255 km (0.093 R)
• M5: 1,171,950 km (0.062 R)
• M6: 2,307,398 km (0.088 R)
• M7: 2,547,951 km (0.117 R)
• M8: 2,827,699 km (0.106 R)
• M9: 3,398,265 km (0.095 R)
• M10: 3,792,306 km (0.102 R)
• M11: 5,192,542 km (0.096 R)
• M12: 6,121,096 km (0.116 R)
• M13: 6,989,512 km (0.108 R)
• M14: 11,932,525 km (0.096 R)
• M15: 12,533,758 km (0.102 R)
• M16: 13,927,412 km (0.086 R)
• M17: 15,562,218 km (0.05 R)
• M18: 17,019,151 km (0.065 R)
• M19: 18,091,469 km (0.103 R)
• M20: 18,327,086 km (0.08 R)
• M21: 21,054,853 km (0.081 R)
• M22: 23,572,136 km (0.118 R)
• M23: 29,195,520 km (0.083 R)
• M24: 30,396,193 km (0.117 R)
• M25: 33,364,215 km (0.106 R)
• M26: 39,079,003 km (0.102 R)
• M27: 39,472,745 km (0.107 R)
• M28: 40,939,701 km (0.109 R)
• M29: 42,998,018 km (0.113 R)
• M30: 50,511,571 km (0.092 R)
• M31: 52,398,449 km (0.076 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 914.1

Radius: 3.4

Gravity: 79.07 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 9.1 AU - 12.5 AU

Year: 22567 Days

Day: 17.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 90,791,901 km

• M1: 43,234 km (0.064 R)
• M2: 260,599 km (0.058 R)
• M3: 449,990 km (0.045 R)
• M4: 715,227 km (0.089 R)
• M5: 2,142,989 km (0.046 R)
• M6: 2,325,050 km (0.117 R)
• M7: 2,541,817 km (0.064 R)
• M8: 3,768,819 km (0.085 R)
• M9: 4,904,865 km (0.111 R)
• M10: 5,384,177 km (0.117 R)
• M11: 5,592,866 km (0.048 R)
• M12: 6,388,876 km (0.044 R)
• M13: 8,202,002 km (0.041 R)
• M14: 9,645,772 km (0.044 R)
• M15: 10,078,409 km (0.081 R)
• M16: 10,653,612 km (0.05 R)
• M17: 13,938,782 km (0.077 R)
• M18: 14,252,788 km (0.059 R)
• M19: 15,223,229 km (0.11 R)
• M20: 16,760,197 km (0.085 R)
• M21: 19,644,145 km (0.03 R)
• M22: 21,880,484 km (0.071 R)
• M23: 27,581,509 km (0.1 R)
• M24: 28,702,895 km (0.109 R)
• M25: 29,338,835 km (0.071 R)
• M26: 38,174,385 km (0.119 R)
• M27: 43,606,583 km (0.109 R)
• M28: 48,628,433 km (0.119 R)
• M29: 54,990,831 km (0.079 R)
• M30: 57,563,017 km (0.113 R)
• M31: 66,419,510 km (0.044 R)
• M32: 67,084,772 km (0.076 R)
• M33: 67,530,723 km (0.049 R)
• M34: 71,169,841 km (0.029 R)
• M35: 78,094,726 km (0.034 R)
• M36: 84,673,143 km (0.072 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 417 - 16,029 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit