🌌 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 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.8

Radius: 14.1

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.63 AU - 0.71 AU

Year: 379 Days

Day: 14.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 65,534,191 km

• M1: 176,376 km (0.115 R)
• M2: 915,240 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.8

Radius: 14.4

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.62 AU - 0.74 AU

Year: 387 Days

Day: 9.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 65,534,191 km

• M1: 179,069 km (0.119 R)
• M2: 711,188 km (0.099 R)
• M3: 1,222,215 km (0.056 R)
• M4: 1,697,936 km (0.066 R)
• M5: 2,283,911 km (0.112 R)
• M6: 3,587,507 km (0.102 R)
• M7: 4,209,086 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142

Radius: 11.6

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.63 AU - 1.03 AU

Year: 522 Days

Day: 7.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 65,534,191 km

• M1: 144,362 km (0.1 R)
• M2: 656,735 km (0.061 R)
• M3: 1,256,921 km (0.089 R)
• M4: 1,685,070 km (0.099 R)
• M5: 2,530,448 km (0.079 R)
• M6: 3,500,889 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 133.2

Radius: 14.5

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.91 AU - 1.43 AU

Year: 874 Days

Day: 11.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 65,534,191 km

• M1: 181,313 km (0.052 R)
• M2: 787,184 km (0.1 R)
• M3: 1,458,729 km (0.083 R)
• M4: 2,104,692 km (0.101 R)
• M5: 2,796,882 km (0.037 R)
• M6: 4,770,676 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 702

Radius: 12.2

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 3.58 AU - 3.64 AU

Year: 4734 Days

Day: 6.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 65,534,191 km

• M1: 151,991 km (0.113 R)
• M2: 565,630 km (0.038 R)
• M3: 956,080 km (0.051 R)
• M4: 1,340,547 km (0.042 R)
• M5: 1,729,052 km (0.089 R)
• M6: 2,254,141 km (0.085 R)
• M7: 2,957,400 km (0.093 R)
• M8: 3,715,413 km (0.117 R)
• M9: 4,426,152 km (0.08 R)
• M10: 6,088,933 km (0.084 R)
• M11: 6,618,808 km (0.095 R)
• M12: 7,247,568 km (0.055 R)
• M13: 7,951,875 km (0.095 R)
• M14: 9,579,649 km (0.112 R)
• M15: 10,125,981 km (0.112 R)
• M16: 12,620,675 km (0.057 R)
• M17: 13,124,072 km (0.105 R)
• M18: 14,825,747 km (0.091 R)
• M19: 15,787,362 km (0.103 R)
• M20: 18,086,831 km (0.033 R)
• M21: 21,158,973 km (0.117 R)
• M22: 21,870,311 km (0.089 R)
• M23: 25,508,382 km (0.109 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 691.8

Radius: 3.7

Gravity: 50.53 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 4.89 AU - 8.11 AU

Year: 11439 Days

Day: 23.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 65,534,191 km

• M1: 47,722 km (0.046 R)
• M2: 423,811 km (0.08 R)
• M3: 539,749 km (0.049 R)
• M4: 1,784,254 km (0.111 R)
• M5: 2,166,776 km (0.097 R)
• M6: 2,952,613 km (0.051 R)
• M7: 4,166,450 km (0.102 R)
• M8: 6,694,355 km (0.106 R)
• M9: 11,974,711 km (0.118 R)
• M10: 14,478,531 km (0.103 R)
• M11: 16,570,657 km (0.047 R)
• M12: 20,828,212 km (0.111 R)
• M13: 23,852,034 km (0.075 R)
• M14: 24,508,918 km (0.072 R)
• M15: 27,563,557 km (0.083 R)
• M16: 28,495,702 km (0.08 R)
• M17: 35,012,035 km (0.072 R)
• M18: 36,721,490 km (0.1 R)
• M19: 40,702,738 km (0.077 R)
• M20: 43,557,215 km (0.087 R)
• M21: 44,115,664 km (0.061 R)
• M22: 45,675,820 km (0.059 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 872.3

Radius: 7.7

Gravity: 14.71 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 4.95 AU - 8.21 AU

Year: 11651 Days

Day: 18.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 65,534,191 km

• M1: 113,844 km (0.08 R)
• M2: 605,123 km (0.115 R)
• M3: 961,166 km (0.11 R)
• M4: 1,226,104 km (0.04 R)
• M5: 1,907,971 km (0.104 R)
• M6: 2,372,921 km (0.057 R)
• M7: 3,197,505 km (0.074 R)
• M8: 3,910,788 km (0.068 R)
• M9: 4,350,605 km (0.119 R)
• M10: 4,630,054 km (0.052 R)
• M11: 5,795,870 km (0.076 R)
• M12: 8,501,348 km (0.044 R)
• M13: 12,876,338 km (0.086 R)
• M14: 15,150,524 km (0.085 R)
• M15: 15,940,252 km (0.05 R)
• M16: 16,456,813 km (0.078 R)
• M17: 17,915,542 km (0.114 R)
• M18: 20,219,199 km (0.099 R)
• M19: 21,620,632 km (0.12 R)
• M20: 23,651,723 km (0.059 R)
• M21: 25,305,976 km (0.112 R)
• M22: 27,559,219 km (0.057 R)
• M23: 28,734,609 km (0.084 R)
• M24: 30,616,102 km (0.052 R)
• M25: 31,876,464 km (0.092 R)
• M26: 32,343,359 km (0.09 R)
• M27: 33,171,084 km (0.037 R)
• M28: 42,381,974 km (0.081 R)
• M29: 49,489,968 km (0.083 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 960.2

Radius: 5.2

Gravity: 35.51 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 6.92 AU - 7.6 AU

Year: 13503 Days

Day: 21.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 65,534,191 km

• M1: 64,626 km (0.113 R)
• M2: 499,657 km (0.11 R)
• M3: 688,449 km (0.099 R)
• M4: 1,112,410 km (0.101 R)
• M5: 1,426,266 km (0.091 R)
• M6: 1,644,978 km (0.057 R)
• M7: 1,903,932 km (0.104 R)
• M8: 3,572,696 km (0.053 R)
• M9: 4,710,239 km (0.111 R)
• M10: 6,562,709 km (0.098 R)
• M11: 8,248,378 km (0.057 R)
• M12: 10,202,874 km (0.065 R)
• M13: 11,935,666 km (0.096 R)
• M14: 12,317,290 km (0.088 R)
• M15: 12,641,319 km (0.079 R)
• M16: 13,855,456 km (0.094 R)
• M17: 14,490,798 km (0.081 R)
• M18: 17,146,758 km (0.056 R)
• M19: 17,550,972 km (0.1 R)
• M20: 18,716,339 km (0.044 R)
• M21: 20,110,292 km (0.067 R)
• M22: 20,741,296 km (0.091 R)
• M23: 21,853,706 km (0.091 R)
• M24: 22,520,763 km (0.099 R)
• M25: 25,743,400 km (0.104 R)
• M26: 31,133,411 km (0.098 R)
• M27: 37,229,375 km (0.039 R)
• M28: 41,128,643 km (0.071 R)
• M29: 49,726,631 km (0.073 R)
• M30: 55,315,009 km (0.053 R)
• M31: 56,196,590 km (0.078 R)
• M32: 59,448,099 km (0.115 R)
• M33: 62,062,023 km (0.093 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 294 - 11,264 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit