🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.67

Radius: 0.85

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.61 AU - 0.71 AU

Year: 346 Days

Day: 17.4 Hours

Environment

Temp: -124 °C

Axial Tilt: 11.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.8

Radius: 12.8

Gravity: 5.75 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.67 AU - 0.77 AU

Year: 394 Days

Day: 7.8 Hours

Environment

Temp: -139 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,306,963 km

• M1: 159,172 km (0.117 R)
• M2: 595,699 km (0.062 R)
• M3: 1,050,327 km (0.106 R)
• M4: 1,759,421 km (0.039 R)
• M5: 2,359,458 km (0.101 R)
• M6: 3,104,455 km (0.104 R)
• M7: 3,829,855 km (0.088 R)
• M8: 4,247,233 km (0.042 R)
• M9: 5,063,589 km (0.03 R)
• M10: 5,859,300 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.6

Radius: 10.1

Gravity: 8.36 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.6 AU - 0.98 AU

Year: 453 Days

Day: 10.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,306,963 km

• M1: 125,662 km (0.062 R)
• M2: 481,256 km (0.102 R)
• M3: 958,623 km (0.104 R)
• M4: 1,373,757 km (0.025 R)
• M5: 2,025,106 km (0.036 R)
• M6: 2,456,247 km (0.115 R)
• M7: 2,892,924 km (0.095 R)
• M8: 3,657,967 km (0.119 R)
• M9: 4,187,095 km (0.093 R)
• M10: 4,597,741 km (0.087 R)
• M11: 5,003,151 km (0.099 R)
• M12: 5,832,372 km (0.116 R)
• M13: 6,177,644 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.7

Radius: 10.2

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.06 AU - 1.18 AU

Year: 765 Days

Day: 15 Hours

Environment

Temp: -157 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,306,963 km

• M1: 138,228 km (0.117 R)
• M2: 651,200 km (0.106 R)
• M3: 976,724 km (0.094 R)
• M4: 1,295,817 km (0.043 R)
• M5: 2,125,187 km (0.069 R)
• M6: 2,506,812 km (0.031 R)
• M7: 4,665,060 km (0.119 R)
• M8: 5,169,504 km (0.103 R)
• M9: 6,004,260 km (0.067 R)
• M10: 7,170,974 km (0.074 R)
• M11: 8,110,000 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.8

Radius: 14

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.06 AU - 1.62 AU

Year: 1002 Days

Day: 7.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 51,306,963 km

• M1: 174,132 km (0.06 R)
• M2: 622,626 km (0.047 R)
• M3: 1,513,182 km (0.114 R)
• M4: 1,985,313 km (0.115 R)
• M5: 2,509,355 km (0.118 R)
• M6: 3,223,834 km (0.1 R)
• M7: 3,699,855 km (0.056 R)
• M8: 4,309,167 km (0.104 R)
• M9: 6,230,751 km (0.089 R)
• M10: 7,495,751 km (0.094 R)
• M11: 8,284,281 km (0.084 R)
• M12: 8,783,639 km (0.095 R)
• M13: 9,934,645 km (0.117 R)
• M14: 10,886,835 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.1

Radius: 13.9

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.26 AU - 2.84 AU

Year: 2629 Days

Day: 10.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 51,306,963 km

• M1: 193,879 km (0.104 R)
• M2: 756,217 km (0.074 R)
• M3: 1,312,123 km (0.091 R)
• M4: 1,750,594 km (0.095 R)
• M5: 2,532,243 km (0.117 R)
• M6: 3,210,370 km (0.082 R)
• M7: 3,727,979 km (0.096 R)
• M8: 4,654,887 km (0.051 R)
• M9: 5,271,829 km (0.083 R)
• M10: 5,862,591 km (0.117 R)
• M11: 7,086,152 km (0.115 R)
• M12: 7,582,667 km (0.051 R)
• M13: 8,202,601 km (0.085 R)
• M14: 8,785,733 km (0.033 R)
• M15: 9,618,694 km (0.083 R)
• M16: 11,027,457 km (0.119 R)
• M17: 11,867,449 km (0.119 R)
• M18: 13,865,628 km (0.088 R)
• M19: 15,299,823 km (0.116 R)
• M20: 15,816,684 km (0.088 R)
• M21: 19,465,525 km (0.068 R)
• M22: 20,692,677 km (0.029 R)
• M23: 21,711,139 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.1

Radius: 13.9

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 3.22 AU - 3.58 AU

Year: 4048 Days

Day: 14.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,306,963 km

• M1: 173,085 km (0.093 R)
• M2: 782,546 km (0.081 R)
• M3: 1,252,882 km (0.104 R)
• M4: 1,695,093 km (0.085 R)
• M5: 2,230,355 km (0.12 R)
• M6: 3,748,175 km (0.09 R)
• M7: 4,310,513 km (0.108 R)
• M8: 5,554,270 km (0.099 R)
• M9: 6,288,346 km (0.115 R)
• M10: 6,723,527 km (0.078 R)
• M11: 7,366,947 km (0.064 R)
• M12: 9,065,481 km (0.066 R)
• M13: 9,967,856 km (0.087 R)
• M14: 11,221,187 km (0.107 R)
• M15: 12,396,128 km (0.092 R)
• M16: 14,584,895 km (0.101 R)
• M17: 17,132,098 km (0.103 R)
• M18: 18,159,686 km (0.119 R)
• M19: 19,349,138 km (0.044 R)
• M20: 22,148,264 km (0.114 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 241.5

Radius: 10.4

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 4.76 AU - 5.6 AU

Year: 7612 Days

Day: 12.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 51,306,963 km

• M1: 129,402 km (0.034 R)
• M2: 579,093 km (0.039 R)
• M3: 1,067,530 km (0.05 R)
• M4: 1,397,244 km (0.068 R)
• M5: 2,317,121 km (0.069 R)
• M6: 3,599,923 km (0.117 R)
• M7: 3,967,635 km (0.095 R)
• M8: 4,480,905 km (0.085 R)
• M9: 8,281,888 km (0.052 R)
• M10: 9,082,685 km (0.119 R)
• M11: 10,793,786 km (0.096 R)
• M12: 11,702,144 km (0.088 R)
• M13: 13,108,962 km (0.038 R)
• M14: 14,516,977 km (0.079 R)
• M15: 15,008,107 km (0.113 R)
• M16: 16,963,950 km (0.107 R)
• M17: 17,878,741 km (0.113 R)
• M18: 19,806,459 km (0.079 R)
• M19: 21,235,717 km (0.109 R)
• M20: 22,587,035 km (0.087 R)
• M21: 24,374,879 km (0.111 R)
• M22: 24,836,238 km (0.114 R)
• M23: 25,935,334 km (0.118 R)
• M24: 28,146,091 km (0.093 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 772.3

Radius: 4.1

Gravity: 45.94 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 5.03 AU - 7.75 AU

Year: 10430 Days

Day: 23.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 51,306,963 km

• M1: 51,162 km (0.104 R)
• M2: 241,900 km (0.089 R)
• M3: 386,112 km (0.065 R)
• M4: 553,363 km (0.104 R)
• M5: 768,484 km (0.115 R)
• M6: 921,074 km (0.069 R)
• M7: 1,200,373 km (0.067 R)
• M8: 1,407,417 km (0.081 R)
• M9: 5,440,725 km (0.118 R)
• M10: 5,613,810 km (0.081 R)
• M11: 6,770,500 km (0.066 R)
• M12: 8,485,939 km (0.106 R)
• M13: 11,457,701 km (0.076 R)
• M14: 12,148,843 km (0.061 R)
• M15: 15,605,302 km (0.055 R)
• M16: 15,744,577 km (0.089 R)
• M17: 16,597,884 km (0.116 R)
• M18: 22,462,419 km (0.027 R)
• M19: 23,725,624 km (0.114 R)
• M20: 24,750,818 km (0.097 R)
• M21: 26,294,070 km (0.076 R)
• M22: 26,491,389 km (0.092 R)
• M23: 29,891,300 km (0.064 R)
• M24: 33,339,830 km (0.068 R)
• M25: 34,624,427 km (0.119 R)
• M26: 36,184,883 km (0.109 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: 465 - 16,025 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit