🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.51 AU - 0.61 AU

Year: 266 Days

Day: 21.3 Hours

Environment

Temp: -120 °C

Axial Tilt: 18.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 78,848,555 km

• M1: 52,359 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 935.2

Radius: 14

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.6 AU - 1 AU

Year: 455 Days

Day: 6.8 Hours

Environment

Temp: -143 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,848,555 km

• M1: 174,132 km (0.09 R)
• M2: 752,028 km (0.067 R)
• M3: 1,290,730 km (0.114 R)
• M4: 1,888,823 km (0.108 R)
• M5: 2,458,192 km (0.084 R)
• M6: 2,993,154 km (0.059 R)
• M7: 3,580,027 km (0.046 R)
• M8: 4,031,812 km (0.059 R)
• M9: 4,955,429 km (0.087 R)
• M10: 5,467,802 km (0.09 R)
• M11: 6,052,281 km (0.046 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.2

Radius: 11.4

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2.63 AU - 3.13 AU

Year: 3108 Days

Day: 14.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,848,555 km

• M1: 141,819 km (0.075 R)
• M2: 833,410 km (0.05 R)
• M3: 1,264,102 km (0.106 R)
• M4: 3,198,103 km (0.081 R)
• M5: 4,639,180 km (0.096 R)
• M6: 6,027,298 km (0.111 R)
• M7: 8,685,054 km (0.114 R)
• M8: 11,677,011 km (0.115 R)
• M9: 12,332,100 km (0.074 R)
• M10: 15,056,726 km (0.094 R)
• M11: 15,981,690 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43

Radius: 13.7

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 3.06 AU - 3.26 AU

Year: 3572 Days

Day: 8.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,848,555 km

• M1: 170,542 km (0.072 R)
• M2: 898,634 km (0.094 R)
• M3: 1,383,481 km (0.055 R)
• M4: 2,235,591 km (0.106 R)
• M5: 2,853,879 km (0.066 R)
• M6: 4,692,137 km (0.101 R)
• M7: 6,245,562 km (0.075 R)
• M8: 7,386,096 km (0.087 R)
• M9: 7,993,912 km (0.06 R)
• M10: 8,530,071 km (0.116 R)
• M11: 9,227,047 km (0.081 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 577

Radius: 6.8

Gravity: 12.48 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 6.38 AU - 8.12 AU

Year: 12412 Days

Day: 24.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 78,848,555 km

• M1: 98,286 km (0.101 R)
• M2: 310,565 km (0.08 R)
• M3: 603,328 km (0.115 R)
• M4: 939,923 km (0.12 R)
• M5: 2,622,750 km (0.103 R)
• M6: 2,837,124 km (0.111 R)
• M7: 3,350,693 km (0.043 R)
• M8: 3,655,873 km (0.069 R)
• M9: 4,234,667 km (0.051 R)
• M10: 4,778,006 km (0.104 R)
• M11: 6,150,716 km (0.094 R)
• M12: 8,580,934 km (0.068 R)
• M13: 10,642,243 km (0.1 R)
• M14: 11,643,501 km (0.115 R)
• M15: 12,108,152 km (0.081 R)
• M16: 12,706,245 km (0.106 R)
• M17: 13,386,616 km (0.094 R)
• M18: 15,365,796 km (0.112 R)
• M19: 15,854,083 km (0.094 R)
• M20: 17,083,329 km (0.084 R)
• M21: 19,893,824 km (0.112 R)
• M22: 21,408,353 km (0.106 R)
• M23: 22,105,479 km (0.117 R)
• M24: 22,907,772 km (0.112 R)
• M25: 27,619,656 km (0.113 R)
• M26: 36,020,923 km (0.04 R)
• M27: 39,549,189 km (0.12 R)
• M28: 39,809,639 km (0.1 R)
• M29: 41,262,833 km (0.101 R)
• M30: 43,163,025 km (0.105 R)
• M31: 44,415,009 km (0.06 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 557.1

Radius: 6

Gravity: 15.48 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 7.06 AU - 8.28 AU

Year: 13506 Days

Day: 23.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 103.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 78,848,555 km

• M1: 74,649 km (0.092 R)
• M2: 328,816 km (0.076 R)
• M3: 602,131 km (0.114 R)
• M4: 1,433,896 km (0.091 R)
• M5: 1,623,586 km (0.047 R)
• M6: 1,846,786 km (0.03 R)
• M7: 2,455,649 km (0.106 R)
• M8: 2,907,734 km (0.108 R)
• M9: 3,238,943 km (0.048 R)
• M10: 3,674,423 km (0.034 R)
• M11: 4,236,013 km (0.111 R)
• M12: 5,082,737 km (0.1 R)
• M13: 5,388,515 km (0.098 R)
• M14: 6,341,454 km (0.082 R)
• M15: 6,616,115 km (0.115 R)
• M16: 10,616,662 km (0.105 R)
• M17: 11,574,387 km (0.103 R)
• M18: 14,520,418 km (0.045 R)
• M19: 14,929,269 km (0.037 R)
• M20: 15,770,009 km (0.068 R)
• M21: 17,621,881 km (0.11 R)
• M22: 18,009,040 km (0.102 R)
• M23: 20,282,031 km (0.105 R)
• M24: 23,383,643 km (0.118 R)
• M25: 24,515,800 km (0.066 R)
• M26: 33,957,969 km (0.092 R)
• M27: 39,873,068 km (0.109 R)
• M28: 40,540,125 km (0.047 R)
• M29: 43,422,876 km (0.059 R)
• M30: 52,725,919 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 50.9

Radius: 3.4

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 9.81 AU - 11.65 AU

Year: 22348 Days

Day: 21.6 Hours

Environment

Temp: -241 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 78,848,555 km

• M1: 42,336 km (0.11 R)
• M2: 398,678 km (0.041 R)
• M3: 1,799,064 km (0.061 R)
• M4: 1,930,112 km (0.104 R)
• M5: 2,083,001 km (0.083 R)
• M6: 3,198,253 km (0.096 R)
• M7: 4,714,128 km (0.06 R)
• M8: 5,020,505 km (0.03 R)
• M9: 6,214,445 km (0.072 R)
• M10: 7,036,336 km (0.054 R)
• M11: 8,083,820 km (0.116 R)
• M12: 8,281,289 km (0.1 R)
• M13: 10,389,423 km (0.103 R)
• M14: 11,641,407 km (0.081 R)
• M15: 13,098,341 km (0.116 R)
• M16: 20,505,979 km (0.09 R)
• M17: 25,289,670 km (0.099 R)
• M18: 25,627,162 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 550

Radius: 7.5

Gravity: 9.78 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 10.18 AU - 12.04 AU

Year: 23545 Days

Day: 20.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 78,848,555 km

• M1: 99,034 km (0.096 R)
• M2: 1,749,098 km (0.096 R)
• M3: 2,975,202 km (0.108 R)
• M4: 3,383,754 km (0.086 R)
• M5: 4,213,274 km (0.031 R)
• M6: 4,910,251 km (0.066 R)
• M7: 5,803,949 km (0.07 R)
• M8: 6,620,603 km (0.069 R)
• M9: 7,414,370 km (0.08 R)
• M10: 7,759,043 km (0.113 R)
• M11: 8,322,130 km (0.074 R)
• M12: 8,640,623 km (0.04 R)
• M13: 9,937,637 km (0.105 R)
• M14: 11,039,575 km (0.12 R)
• M15: 12,842,080 km (0.097 R)
• M16: 15,143,643 km (0.112 R)
• M17: 15,941,149 km (0.083 R)
• M18: 19,505,767 km (0.109 R)
• M19: 22,123,132 km (0.09 R)
• M20: 22,735,136 km (0.081 R)
• M21: 23,886,142 km (0.118 R)
• M22: 26,417,638 km (0.074 R)
• M23: 30,229,541 km (0.092 R)
• M24: 35,768,252 km (0.074 R)
• M25: 38,628,564 km (0.069 R)
• M26: 40,719,194 km (0.103 R)
• M27: 43,041,551 km (0.047 R)
• M28: 46,108,158 km (0.094 R)
• M29: 51,241,759 km (0.077 R)
• M30: 51,597,054 km (0.079 R)
• M31: 51,953,845 km (0.062 R)
• M32: 57,697,505 km (0.11 R)
• M33: 61,619,213 km (0.056 R)
• M34: 62,424,349 km (0.102 R)
• M35: 68,043,395 km (0.065 R)
• M36: 72,193,688 km (0.085 R)
• M37: 77,206,264 km (0.107 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 393 - 15,918 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit