🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 776.8

Radius: 14.2

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.61 AU - 0.81 AU

Year: 406 Days

Day: 14.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 155.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,323,230 km

• M1: 176,825 km (0.102 R)
• M2: 829,819 km (0.092 R)
• M3: 1,299,557 km (0.102 R)
• M4: 1,778,270 km (0.113 R)
• M5: 2,234,543 km (0.079 R)
• M6: 3,521,983 km (0.094 R)
• M7: 3,999,200 km (0.095 R)
• M8: 4,606,118 km (0.089 R)
• M9: 5,195,085 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.2

Radius: 9.3

Gravity: 8.77 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.71 AU - 1.19 AU

Year: 628 Days

Day: 6.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,323,230 km

• M1: 115,639 km (0.094 R)
• M2: 500,255 km (0.032 R)
• M3: 823,686 km (0.026 R)
• M4: 1,946,268 km (0.102 R)
• M5: 3,530,659 km (0.115 R)
• M6: 4,512,919 km (0.036 R)
• M7: 4,889,158 km (0.05 R)
• M8: 5,483,809 km (0.085 R)
• M9: 6,244,215 km (0.043 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 714.9

Radius: 8

Gravity: 11.17 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.52 AU - 2.12 AU

Year: 1665 Days

Day: 7.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,323,230 km

• M1: 99,483 km (0.116 R)
• M2: 393,592 km (0.115 R)
• M3: 775,815 km (0.069 R)
• M4: 1,035,068 km (0.054 R)
• M5: 1,294,470 km (0.06 R)
• M6: 1,840,353 km (0.099 R)
• M7: 2,491,852 km (0.058 R)
• M8: 2,820,817 km (0.042 R)
• M9: 3,256,895 km (0.098 R)
• M10: 3,516,298 km (0.078 R)
• M11: 3,931,432 km (0.085 R)
• M12: 4,263,839 km (0.114 R)
• M13: 4,655,187 km (0.051 R)
• M14: 5,510,138 km (0.062 R)
• M15: 5,998,875 km (0.12 R)
• M16: 8,277,549 km (0.044 R)
• M17: 9,171,845 km (0.109 R)
• M18: 10,578,963 km (0.06 R)
• M19: 11,668,484 km (0.035 R)
• M20: 12,086,162 km (0.059 R)
• M21: 12,435,323 km (0.079 R)
• M22: 12,991,677 km (0.103 R)
• M23: 13,317,053 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.6

Radius: 13.5

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 2.92 AU - 4.3 AU

Year: 4652 Days

Day: 10.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,323,230 km

• M1: 167,849 km (0.12 R)
• M2: 621,430 km (0.079 R)
• M3: 1,126,921 km (0.076 R)
• M4: 1,862,493 km (0.056 R)
• M5: 2,799,575 km (0.084 R)
• M6: 3,472,765 km (0.11 R)
• M7: 4,576,199 km (0.103 R)
• M8: 5,222,910 km (0.053 R)
• M9: 7,045,013 km (0.116 R)
• M10: 8,013,509 km (0.062 R)
• M11: 8,805,929 km (0.11 R)
• M12: 9,298,256 km (0.088 R)
• M13: 10,505,211 km (0.06 R)
• M14: 11,016,387 km (0.056 R)
• M15: 14,336,562 km (0.09 R)
• M16: 15,234,000 km (0.043 R)
• M17: 20,489,224 km (0.075 R)
• M18: 22,596,908 km (0.116 R)
• M19: 25,070,658 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 182.8

Radius: 14.9

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 4.07 AU - 4.27 AU

Year: 5776 Days

Day: 7.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,323,230 km

• M1: 185,352 km (0.093 R)
• M2: 1,175,241 km (0.113 R)
• M3: 3,290,704 km (0.047 R)
• M4: 3,991,720 km (0.11 R)
• M5: 5,852,119 km (0.083 R)
• M6: 7,525,222 km (0.091 R)
• M7: 8,713,328 km (0.099 R)
• M8: 11,969,475 km (0.097 R)
• M9: 12,581,929 km (0.118 R)
• M10: 13,869,667 km (0.082 R)
• M11: 19,074,177 km (0.049 R)
• M12: 19,911,028 km (0.095 R)
• M13: 21,022,540 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.8

Radius: 9.4

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 5.24 AU - 5.38 AU

Year: 8299 Days

Day: 9 Hours

Environment

Temp: -221 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,323,230 km

• M1: 131,945 km (0.12 R)
• M2: 577,597 km (0.092 R)
• M3: 1,454,839 km (0.062 R)
• M4: 2,004,013 km (0.118 R)
• M5: 2,327,593 km (0.119 R)
• M6: 2,971,463 km (0.117 R)
• M7: 3,747,726 km (0.092 R)
• M8: 4,738,513 km (0.092 R)
• M9: 5,341,542 km (0.097 R)
• M10: 7,578,030 km (0.074 R)
• M11: 8,245,835 km (0.086 R)
• M12: 8,853,651 km (0.107 R)
• M13: 13,842,441 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 173.8

Radius: 4

Gravity: 10.86 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 4.95 AU - 7.09 AU

Year: 10018 Days

Day: 18.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,323,230 km

• M1: 49,816 km (0.094 R)
• M2: 288,724 km (0.025 R)
• M3: 443,408 km (0.037 R)
• M4: 751,879 km (0.099 R)
• M5: 1,053,019 km (0.069 R)
• M6: 1,794,277 km (0.116 R)
• M7: 3,956,116 km (0.089 R)
• M8: 4,413,885 km (0.075 R)
• M9: 5,433,843 km (0.119 R)
• M10: 7,490,515 km (0.102 R)
• M11: 9,629,166 km (0.101 R)
• M12: 11,183,338 km (0.104 R)
• M13: 16,349,102 km (0.108 R)
• M14: 26,969,355 km (0.042 R)
• M15: 27,476,791 km (0.096 R)
• M16: 28,336,529 km (0.083 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 80.6

Radius: 4.9

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 5.64 AU - 7.86 AU

Year: 11895 Days

Day: 24.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 66,323,230 km

• M1: 60,886 km (0.051 R)
• M2: 235,766 km (0.061 R)
• M3: 544,985 km (0.108 R)
• M4: 859,889 km (0.107 R)
• M5: 2,286,603 km (0.06 R)
• M6: 2,604,948 km (0.082 R)
• M7: 3,349,347 km (0.114 R)
• M8: 3,846,012 km (0.097 R)
• M9: 5,114,602 km (0.082 R)
• M10: 5,915,549 km (0.106 R)
• M11: 12,117,876 km (0.084 R)
• M12: 13,580,794 km (0.105 R)
• M13: 13,886,871 km (0.093 R)
• M14: 17,988,546 km (0.078 R)
• M15: 25,819,545 km (0.12 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 384

Radius: 5.7

Gravity: 11.82 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 8.03 AU - 12.15 AU

Year: 21738 Days

Day: 18.6 Hours

Environment

Temp: -241 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,323,230 km

• M1: 74,201 km (0.054 R)
• M2: 675,734 km (0.038 R)
• M3: 1,021,604 km (0.064 R)
• M4: 2,303,508 km (0.11 R)
• M5: 2,584,004 km (0.06 R)
• M6: 2,815,133 km (0.111 R)
• M7: 4,216,416 km (0.085 R)
• M8: 4,979,365 km (0.106 R)
• M9: 6,519,625 km (0.1 R)
• M10: 8,204,246 km (0.116 R)
• M11: 15,860,665 km (0.105 R)
• M12: 20,994,715 km (0.118 R)
• M13: 25,318,243 km (0.115 R)
• M14: 27,026,950 km (0.05 R)
• M15: 30,910,361 km (0.079 R)
• M16: 33,234,513 km (0.06 R)
• M17: 45,994,015 km (0.057 R)
• M18: 49,996,805 km (0.092 R)
• M19: 50,824,231 km (0.109 R)
• M20: 58,686,646 km (0.103 R)
• M21: 63,579,394 km (0.08 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: 381 - 15,321 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit