🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.5

Radius: 11.3

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.52 AU - 0.68 AU

Year: 310 Days

Day: 12.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 55,868,117 km

• M1: 140,472 km (0.11 R)
• M2: 650,152 km (0.067 R)
• M3: 1,124,078 km (0.094 R)
• M4: 2,138,202 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.2

Radius: 9.9

Gravity: 7.97 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.67 AU - 0.89 AU

Year: 459 Days

Day: 8.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,868,117 km

• M1: 123,119 km (0.119 R)
• M2: 447,447 km (0.107 R)
• M3: 756,516 km (0.105 R)
• M4: 1,093,261 km (0.075 R)
• M5: 1,759,271 km (0.11 R)
• M6: 2,166,028 km (0.12 R)
• M7: 2,494,395 km (0.096 R)
• M8: 3,397,517 km (0.103 R)
• M9: 3,897,473 km (0.117 R)
• M10: 4,886,614 km (0.067 R)
• M11: 5,372,808 km (0.079 R)
• M12: 6,348,186 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232

Radius: 14.8

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.92 AU - 1.14 AU

Year: 697 Days

Day: 6.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,868,117 km

• M1: 184,005 km (0.082 R)
• M2: 660,026 km (0.106 R)
• M3: 1,192,744 km (0.082 R)
• M4: 1,715,588 km (0.044 R)
• M5: 2,253,243 km (0.107 R)
• M6: 2,997,792 km (0.118 R)
• M7: 3,464,088 km (0.089 R)
• M8: 4,043,930 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652

Radius: 10.1

Gravity: 6.39 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.5 AU - 1.6 AU

Year: 1287 Days

Day: 14.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,868,117 km

• M1: 125,961 km (0.034 R)
• M2: 504,444 km (0.105 R)
• M3: 975,677 km (0.099 R)
• M4: 1,416,393 km (0.028 R)
• M5: 2,082,702 km (0.097 R)
• M6: 2,592,980 km (0.07 R)
• M7: 3,243,132 km (0.115 R)
• M8: 3,670,533 km (0.044 R)
• M9: 4,257,406 km (0.031 R)
• M10: 4,695,129 km (0.064 R)
• M11: 5,102,783 km (0.079 R)
• M12: 5,554,868 km (0.077 R)
• M13: 6,078,610 km (0.092 R)
• M14: 8,853,202 km (0.062 R)
• M15: 9,722,366 km (0.112 R)
• M16: 11,013,246 km (0.111 R)
• M17: 11,595,181 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 965.3

Radius: 9.2

Gravity: 11.4 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.56 AU - 2.04 AU

Year: 1610 Days

Day: 5.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 55,868,117 km

• M1: 116,836 km (0.093 R)
• M2: 507,586 km (0.083 R)
• M3: 845,078 km (0.103 R)
• M4: 1,276,070 km (0.063 R)
• M5: 1,602,044 km (0.101 R)
• M6: 2,136,258 km (0.041 R)
• M7: 2,425,879 km (0.073 R)
• M8: 2,873,027 km (0.053 R)
• M9: 4,273,712 km (0.059 R)
• M10: 4,779,652 km (0.104 R)
• M11: 5,347,525 km (0.05 R)
• M12: 5,862,741 km (0.108 R)
• M13: 6,384,987 km (0.08 R)
• M14: 6,857,118 km (0.059 R)
• M15: 7,579,975 km (0.053 R)
• M16: 9,176,932 km (0.105 R)
• M17: 9,847,130 km (0.108 R)
• M18: 10,159,191 km (0.103 R)
• M19: 11,023,867 km (0.087 R)
• M20: 11,474,306 km (0.07 R)
• M21: 13,106,120 km (0.096 R)
• M22: 13,441,817 km (0.117 R)
• M23: 13,999,369 km (0.082 R)
• M24: 14,706,817 km (0.105 R)
• M25: 15,624,301 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.4

Radius: 10.5

Gravity: 7.69 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 2.68 AU - 3.66 AU

Year: 3764 Days

Day: 11.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,868,117 km

• M1: 130,898 km (0.033 R)
• M2: 485,894 km (0.1 R)
• M3: 988,992 km (0.069 R)
• M4: 1,334,862 km (0.065 R)
• M5: 1,763,161 km (0.082 R)
• M6: 2,373,520 km (0.045 R)
• M7: 2,814,385 km (0.07 R)
• M8: 3,156,964 km (0.032 R)
• M9: 4,743,300 km (0.084 R)
• M10: 5,925,123 km (0.089 R)
• M11: 7,193,713 km (0.103 R)
• M12: 8,158,769 km (0.108 R)
• M13: 8,597,838 km (0.094 R)
• M14: 9,246,944 km (0.112 R)
• M15: 11,212,360 km (0.119 R)
• M16: 14,211,349 km (0.09 R)
• M17: 15,448,374 km (0.085 R)
• M18: 18,320,952 km (0.07 R)
• M19: 19,011,645 km (0.055 R)
• M20: 20,713,172 km (0.091 R)
• M21: 23,599,214 km (0.109 R)
• M22: 26,345,681 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.1

Radius: 10.7

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 5.31 AU - 6.05 AU

Year: 9027 Days

Day: 11.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 55,868,117 km

• M1: 134,040 km (0.101 R)
• M2: 691,441 km (0.039 R)
• M3: 1,090,120 km (0.115 R)
• M4: 1,697,936 km (0.053 R)
• M5: 2,743,924 km (0.049 R)
• M6: 3,210,819 km (0.105 R)
• M7: 3,566,413 km (0.087 R)
• M8: 4,600,434 km (0.048 R)
• M9: 7,868,549 km (0.073 R)
• M10: 10,496,235 km (0.089 R)
• M11: 12,597,337 km (0.071 R)
• M12: 13,318,399 km (0.104 R)
• M13: 14,842,802 km (0.079 R)
• M14: 18,096,106 km (0.053 R)
• M15: 19,375,318 km (0.081 R)
• M16: 19,962,789 km (0.083 R)
• M17: 27,324,201 km (0.074 R)
• M18: 31,053,376 km (0.11 R)
• M19: 32,676,812 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 512

Radius: 5.1

Gravity: 19.68 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 7.72 AU - 7.9 AU

Year: 14555 Days

Day: 17.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 55,868,117 km

• M1: 65,973 km (0.115 R)
• M2: 275,260 km (0.114 R)
• M3: 572,810 km (0.098 R)
• M4: 894,146 km (0.072 R)
• M5: 1,909,168 km (0.08 R)
• M6: 2,218,237 km (0.117 R)
• M7: 2,538,975 km (0.106 R)
• M8: 2,844,454 km (0.096 R)
• M9: 3,198,702 km (0.071 R)
• M10: 4,052,008 km (0.118 R)
• M11: 4,317,095 km (0.104 R)
• M12: 4,817,051 km (0.07 R)
• M13: 4,981,011 km (0.084 R)
• M14: 5,354,706 km (0.115 R)
• M15: 5,530,783 km (0.064 R)
• M16: 7,080,916 km (0.083 R)
• M17: 7,641,459 km (0.115 R)
• M18: 10,398,099 km (0.055 R)
• M19: 12,117,278 km (0.118 R)
• M20: 12,298,890 km (0.093 R)
• M21: 18,316,165 km (0.083 R)
• M22: 25,047,022 km (0.054 R)
• M23: 25,243,444 km (0.081 R)
• M24: 33,972,928 km (0.09 R)
• M25: 36,810,950 km (0.095 R)
• M26: 37,576,592 km (0.115 R)
• M27: 38,352,705 km (0.085 R)
• M28: 40,609,539 km (0.103 R)
• M29: 44,661,397 km (0.098 R)
• M30: 47,758,073 km (0.097 R)
• M31: 54,046,719 km (0.116 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 149 - 17,580 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit