🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 848.7

Radius: 15

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.58 AU - 0.74 AU

Year: 358 Days

Day: 8.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,641,502 km

• M1: 186,549 km (0.029 R)
• M2: 736,620 km (0.107 R)
• M3: 1,267,842 km (0.053 R)
• M4: 1,899,743 km (0.092 R)
• M5: 2,501,725 km (0.118 R)
• M6: 3,142,752 km (0.119 R)
• M7: 4,447,246 km (0.088 R)
• M8: 5,085,430 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17

Radius: 13.2

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.89 AU - 1.11 AU

Year: 667 Days

Day: 14.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 54,641,502 km

• M1: 164,109 km (0.081 R)
• M2: 587,172 km (0.106 R)
• M3: 1,196,933 km (0.093 R)
• M4: 1,810,433 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.5

Radius: 13.1

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.36 AU - 1.86 AU

Year: 1362 Days

Day: 12.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 54,641,502 km

• M1: 162,912 km (0.106 R)
• M2: 698,323 km (0.069 R)
• M3: 1,307,336 km (0.052 R)
• M4: 1,858,903 km (0.115 R)
• M5: 2,413,911 km (0.063 R)
• M6: 2,836,376 km (0.039 R)
• M7: 3,891,789 km (0.094 R)
• M8: 4,413,586 km (0.082 R)
• M9: 4,826,775 km (0.068 R)
• M10: 5,945,618 km (0.067 R)
• M11: 7,736,454 km (0.096 R)
• M12: 8,192,727 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.6

Radius: 8.5

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.92 AU - 2.14 AU

Year: 1929 Days

Day: 5.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,641,502 km

• M1: 105,766 km (0.074 R)
• M2: 376,239 km (0.029 R)
• M3: 867,518 km (0.081 R)
• M4: 1,281,007 km (0.095 R)
• M5: 1,860,250 km (0.116 R)
• M6: 4,130,248 km (0.113 R)
• M7: 4,775,613 km (0.077 R)
• M8: 5,486,652 km (0.086 R)
• M9: 6,288,197 km (0.091 R)
• M10: 7,434,565 km (0.106 R)
• M11: 8,523,189 km (0.079 R)
• M12: 9,105,723 km (0.053 R)
• M13: 9,684,966 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 313.6

Radius: 12.5

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 3.3 AU - 4.88 AU

Year: 5516 Days

Day: 8.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 54,641,502 km

• M1: 155,582 km (0.096 R)
• M2: 721,062 km (0.101 R)
• M3: 1,457,532 km (0.076 R)
• M4: 2,702,635 km (0.118 R)
• M5: 3,728,428 km (0.082 R)
• M6: 6,068,587 km (0.116 R)
• M7: 10,080,054 km (0.113 R)
• M8: 11,471,913 km (0.078 R)
• M9: 14,895,011 km (0.092 R)
• M10: 15,860,516 km (0.083 R)
• M11: 16,414,776 km (0.086 R)
• M12: 20,403,055 km (0.117 R)
• M13: 21,191,885 km (0.11 R)
• M14: 21,728,941 km (0.118 R)
• M15: 23,680,595 km (0.031 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.7

Radius: 12.6

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 3.43 AU - 5.51 AU

Year: 6302 Days

Day: 14 Hours

Environment

Temp: -214 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 54,641,502 km

• M1: 156,928 km (0.05 R)
• M2: 560,842 km (0.074 R)
• M3: 1,137,841 km (0.086 R)
• M4: 2,845,052 km (0.099 R)
• M5: 3,279,634 km (0.091 R)
• M6: 3,831,052 km (0.106 R)
• M7: 4,887,662 km (0.099 R)
• M8: 5,704,915 km (0.068 R)
• M9: 6,505,862 km (0.095 R)
• M10: 7,304,714 km (0.09 R)
• M11: 7,806,765 km (0.115 R)
• M12: 8,498,206 km (0.109 R)
• M13: 10,003,460 km (0.113 R)
• M14: 14,414,652 km (0.112 R)
• M15: 14,959,937 km (0.105 R)
• M16: 16,546,871 km (0.094 R)
• M17: 21,117,684 km (0.072 R)
• M18: 22,139,288 km (0.084 R)
• M19: 23,858,916 km (0.066 R)
• M20: 27,470,208 km (0.054 R)
• M21: 29,648,054 km (0.117 R)
• M22: 35,427,768 km (0.108 R)
• M23: 36,982,090 km (0.101 R)
• M24: 37,434,324 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 500

Radius: 5.2

Gravity: 18.49 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 6.62 AU - 7.04 AU

Year: 11903 Days

Day: 19.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 54,641,502 km

• M1: 67,768 km (0.091 R)
• M2: 333,154 km (0.119 R)
• M3: 692,937 km (0.104 R)
• M4: 905,666 km (0.067 R)
• M5: 1,221,018 km (0.1 R)
• M6: 1,549,086 km (0.094 R)
• M7: 1,852,171 km (0.105 R)
• M8: 2,230,355 km (0.101 R)
• M9: 3,474,859 km (0.039 R)
• M10: 4,417,326 km (0.046 R)
• M11: 4,654,738 km (0.069 R)
• M12: 4,869,411 km (0.106 R)
• M13: 5,418,285 km (0.06 R)
• M14: 6,152,063 km (0.028 R)
• M15: 6,600,108 km (0.07 R)
• M16: 6,910,674 km (0.113 R)
• M17: 8,251,071 km (0.081 R)
• M18: 9,267,588 km (0.092 R)
• M19: 9,706,508 km (0.099 R)
• M20: 10,261,666 km (0.119 R)
• M21: 12,873,944 km (0.119 R)
• M22: 17,759,212 km (0.067 R)
• M23: 20,000,787 km (0.08 R)
• M24: 23,392,170 km (0.043 R)
• M25: 23,841,413 km (0.077 R)
• M26: 24,022,576 km (0.088 R)
• M27: 27,444,926 km (0.102 R)
• M28: 28,247,220 km (0.085 R)
• M29: 28,859,075 km (0.062 R)
• M30: 29,065,071 km (0.076 R)
• M31: 35,472,198 km (0.109 R)
• M32: 40,015,785 km (0.105 R)
• M33: 47,177,783 km (0.04 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 250.8

Radius: 6.4

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 8.03 AU - 11.35 AU

Year: 20115 Days

Day: 19.4 Hours

Environment

Temp: -243 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 54,641,502 km

• M1: 79,586 km (0.113 R)
• M2: 419,472 km (0.078 R)
• M3: 994,975 km (0.106 R)
• M4: 1,801,308 km (0.088 R)
• M5: 2,604,050 km (0.095 R)
• M6: 3,467,828 km (0.055 R)
• M7: 4,007,577 km (0.033 R)
• M8: 4,664,312 km (0.096 R)
• M9: 5,321,495 km (0.093 R)
• M10: 7,885,005 km (0.115 R)
• M11: 8,202,601 km (0.092 R)
• M12: 9,559,304 km (0.104 R)
• M13: 10,398,249 km (0.11 R)
• M14: 10,615,465 km (0.076 R)
• M15: 14,652,513 km (0.077 R)
• M16: 17,693,688 km (0.113 R)
• M17: 18,003,655 km (0.115 R)
• M18: 21,655,937 km (0.117 R)
• M19: 24,220,494 km (0.077 R)
• M20: 29,725,247 km (0.056 R)
• M21: 32,073,335 km (0.057 R)
• M22: 35,270,540 km (0.071 R)
• M23: 36,757,244 km (0.047 R)
• M24: 42,014,562 km (0.105 R)
• M25: 52,541,166 km (0.069 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 413 - 14,588 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit