🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.8

Radius: 8.6

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.54 AU - 0.86 AU

Year: 391 Days

Day: 7.6 Hours

Environment

Temp: -148 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 85,632,025 km

• M1: 106,962 km (0.104 R)
• M2: 381,026 km (0.083 R)
• M3: 719,566 km (0.063 R)
• M4: 1,132,456 km (0.057 R)
• M5: 1,665,623 km (0.069 R)
• M6: 2,840,116 km (0.097 R)
• M7: 3,218,299 km (0.076 R)
• M8: 3,675,021 km (0.078 R)
• M9: 4,015,207 km (0.073 R)
• M10: 4,389,052 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.7

Radius: 12.1

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.29 AU - 1.89 AU

Year: 1337 Days

Day: 5.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 85,632,025 km

• M1: 150,495 km (0.069 R)
• M2: 533,316 km (0.114 R)
• M3: 1,884,784 km (0.032 R)
• M4: 2,617,364 km (0.058 R)
• M5: 3,461,695 km (0.094 R)
• M6: 5,119,239 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.3

Radius: 11.6

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 2.58 AU - 2.58 AU

Year: 2763 Days

Day: 5.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 85,632,025 km

• M1: 144,362 km (0.038 R)
• M2: 562,937 km (0.109 R)
• M3: 1,085,333 km (0.118 R)
• M4: 1,684,921 km (0.104 R)
• M5: 2,405,085 km (0.066 R)
• M6: 3,320,474 km (0.092 R)
• M7: 3,827,312 km (0.107 R)
• M8: 4,559,893 km (0.044 R)
• M9: 4,997,466 km (0.085 R)
• M10: 7,012,699 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.1

Radius: 10.3

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 2.73 AU - 3.63 AU

Year: 3782 Days

Day: 13 Hours

Environment

Temp: -209 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 85,632,025 km

• M1: 135,685 km (0.115 R)
• M2: 497,563 km (0.104 R)
• M3: 900,130 km (0.071 R)
• M4: 1,389,016 km (0.047 R)
• M5: 2,013,587 km (0.083 R)
• M6: 2,786,260 km (0.089 R)
• M7: 3,839,130 km (0.037 R)
• M8: 4,822,287 km (0.1 R)
• M9: 6,042,557 km (0.034 R)
• M10: 6,710,960 km (0.086 R)
• M11: 7,193,114 km (0.06 R)
• M12: 8,516,607 km (0.109 R)
• M13: 9,357,048 km (0.055 R)
• M14: 11,519,186 km (0.044 R)
• M15: 12,294,701 km (0.082 R)
• M16: 14,455,343 km (0.104 R)
• M17: 15,552,045 km (0.118 R)
• M18: 16,499,149 km (0.045 R)
• M19: 17,221,258 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.5

Radius: 11.9

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 3.01 AU - 4.69 AU

Year: 5038 Days

Day: 5.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 85,632,025 km

• M1: 150,047 km (0.102 R)
• M2: 596,746 km (0.101 R)
• M3: 1,244,654 km (0.112 R)
• M4: 1,627,625 km (0.115 R)
• M5: 2,981,186 km (0.099 R)
• M6: 4,154,034 km (0.116 R)
• M7: 5,115,649 km (0.074 R)
• M8: 6,934,161 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 779.5

Radius: 8.5

Gravity: 10.79 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 3.68 AU - 4.74 AU

Year: 5760 Days

Day: 6.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 167 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 85,632,025 km

• M1: 105,766 km (0.102 R)
• M2: 444,156 km (0.065 R)
• M3: 741,257 km (0.115 R)
• M4: 1,185,264 km (0.085 R)
• M5: 1,986,061 km (0.072 R)
• M6: 2,266,857 km (0.108 R)
• M7: 2,646,386 km (0.086 R)
• M8: 3,533,801 km (0.086 R)
• M9: 4,475,220 km (0.119 R)
• M10: 5,189,849 km (0.092 R)
• M11: 5,946,815 km (0.115 R)
• M12: 6,740,730 km (0.076 R)
• M13: 8,022,934 km (0.084 R)
• M14: 8,991,281 km (0.118 R)
• M15: 9,678,982 km (0.06 R)
• M16: 10,308,939 km (0.079 R)
• M17: 10,587,191 km (0.104 R)
• M18: 11,013,994 km (0.104 R)
• M19: 12,677,971 km (0.082 R)
• M20: 13,652,900 km (0.065 R)
• M21: 14,618,854 km (0.11 R)
• M22: 14,970,409 km (0.038 R)
• M23: 16,559,587 km (0.12 R)
• M24: 22,850,177 km (0.108 R)
• M25: 26,826,189 km (0.076 R)
• M26: 31,240,673 km (0.073 R)
• M27: 32,713,614 km (0.033 R)
• M28: 34,027,232 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 135.5

Radius: 4.8

Gravity: 5.88 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 6.63 AU - 10.61 AU

Year: 16877 Days

Day: 17.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 85,632,025 km

• M1: 61,335 km (0.114 R)
• M2: 1,330,823 km (0.117 R)
• M3: 1,903,932 km (0.038 R)
• M4: 2,177,846 km (0.079 R)
• M5: 2,350,781 km (0.075 R)
• M6: 2,570,690 km (0.051 R)
• M7: 2,724,776 km (0.105 R)
• M8: 3,857,381 km (0.104 R)
• M9: 4,854,152 km (0.1 R)
• M10: 9,618,096 km (0.081 R)
• M11: 12,598,983 km (0.099 R)
• M12: 15,311,342 km (0.043 R)
• M13: 19,475,399 km (0.11 R)
• M14: 22,990,500 km (0.036 R)
• M15: 29,554,406 km (0.098 R)
• M16: 31,753,046 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 855

Radius: 7.9

Gravity: 13.7 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 8.91 AU - 11.27 AU

Year: 21373 Days

Day: 21.5 Hours

Environment

Temp: -243 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 85,632,025 km

• M1: 99,632 km (0.096 R)
• M2: 422,913 km (0.107 R)
• M3: 1,072,467 km (0.04 R)
• M4: 1,896,602 km (0.107 R)
• M5: 2,339,112 km (0.076 R)
• M6: 3,228,322 km (0.079 R)
• M7: 5,172,047 km (0.043 R)
• M8: 6,435,252 km (0.073 R)
• M9: 7,236,348 km (0.07 R)
• M10: 7,584,911 km (0.058 R)
• M11: 8,478,160 km (0.119 R)
• M12: 9,856,256 km (0.099 R)
• M13: 10,535,430 km (0.082 R)
• M14: 11,048,700 km (0.106 R)
• M15: 12,194,470 km (0.118 R)
• M16: 15,772,403 km (0.114 R)
• M17: 16,274,304 km (0.055 R)
• M18: 17,047,276 km (0.116 R)
• M19: 19,417,504 km (0.091 R)
• M20: 21,895,743 km (0.093 R)
• M21: 23,157,002 km (0.113 R)
• M22: 25,823,584 km (0.084 R)
• M23: 28,688,384 km (0.1 R)
• M24: 31,626,187 km (0.11 R)
• M25: 33,099,576 km (0.106 R)
• M26: 37,349,801 km (0.089 R)
• M27: 38,091,956 km (0.097 R)
• M28: 38,391,451 km (0.097 R)
• M29: 44,055,975 km (0.109 R)
• M30: 45,218,500 km (0.091 R)
• M31: 46,061,334 km (0.038 R)
• M32: 47,258,865 km (0.068 R)
• M33: 50,613,597 km (0.051 R)
• M34: 53,184,885 km (0.114 R)
• M35: 54,123,911 km (0.103 R)
• M36: 58,586,117 km (0.09 R)
• M37: 66,702,399 km (0.102 R)
• M38: 68,455,088 km (0.101 R)
• M39: 69,789,501 km (0.111 R)
• M40: 71,141,267 km (0.073 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 325 - 10,727 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit