🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126.3

Radius: 8.7

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.47 AU - 0.59 AU

Year: 257 Days

Day: 8.3 Hours

Environment

Temp: -138 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 69,692,806 km

• M1: 108,758 km (0.102 R)
• M2: 414,536 km (0.09 R)
• M3: 734,376 km (0.108 R)
• M4: 1,197,681 km (0.058 R)
• M5: 2,173,208 km (0.059 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177.2

Radius: 14.4

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.23 AU - 1.75 AU

Year: 1213 Days

Day: 13.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,692,806 km

• M1: 179,218 km (0.085 R)
• M2: 689,945 km (0.091 R)
• M3: 1,224,010 km (0.101 R)
• M4: 1,702,274 km (0.043 R)
• M5: 2,366,190 km (0.114 R)
• M6: 3,310,152 km (0.073 R)
• M7: 3,946,990 km (0.112 R)
• M8: 4,477,464 km (0.051 R)
• M9: 5,398,090 km (0.106 R)
• M10: 5,904,030 km (0.09 R)
• M11: 7,117,119 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 594.2

Radius: 14.7

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.8 AU - 2.9 AU

Year: 2402 Days

Day: 10.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 69,692,806 km

• M1: 182,809 km (0.077 R)
• M2: 703,708 km (0.081 R)
• M3: 1,235,978 km (0.086 R)
• M4: 1,851,423 km (0.117 R)
• M5: 2,421,092 km (0.109 R)
• M6: 5,301,001 km (0.093 R)
• M7: 6,128,277 km (0.114 R)
• M8: 8,164,453 km (0.106 R)
• M9: 9,000,556 km (0.037 R)
• M10: 9,787,141 km (0.026 R)
• M11: 10,508,054 km (0.09 R)
• M12: 11,735,205 km (0.102 R)
• M13: 12,219,304 km (0.107 R)
• M14: 13,488,342 km (0.041 R)
• M15: 15,942,495 km (0.11 R)
• M16: 17,146,609 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828.8

Radius: 12.5

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 2.78 AU - 3.78 AU

Year: 3961 Days

Day: 7.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 69,692,806 km

• M1: 155,881 km (0.103 R)
• M2: 750,383 km (0.032 R)
• M3: 1,139,936 km (0.118 R)
• M4: 1,755,531 km (0.089 R)
• M5: 2,228,859 km (0.068 R)
• M6: 2,702,037 km (0.113 R)
• M7: 3,166,089 km (0.083 R)
• M8: 3,897,174 km (0.105 R)
• M9: 4,303,482 km (0.099 R)
• M10: 5,472,739 km (0.095 R)
• M11: 7,678,560 km (0.106 R)
• M12: 8,505,686 km (0.094 R)
• M13: 10,594,671 km (0.12 R)
• M14: 13,005,889 km (0.088 R)
• M15: 15,039,672 km (0.117 R)
• M16: 16,334,143 km (0.059 R)
• M17: 18,008,592 km (0.06 R)
• M18: 18,444,520 km (0.058 R)
• M19: 21,836,502 km (0.082 R)
• M20: 22,261,210 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.1

Radius: 13.3

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.73 AU - 4.03 AU

Year: 4144 Days

Day: 13.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 69,692,806 km

• M1: 165,455 km (0.108 R)
• M2: 665,262 km (0.112 R)
• M3: 1,154,896 km (0.091 R)
• M4: 2,819,172 km (0.034 R)
• M5: 3,283,374 km (0.044 R)
• M6: 3,967,934 km (0.028 R)
• M7: 4,943,611 km (0.08 R)
• M8: 5,408,113 km (0.091 R)
• M9: 7,044,115 km (0.059 R)
• M10: 7,668,088 km (0.091 R)
• M11: 8,581,532 km (0.113 R)
• M12: 9,179,026 km (0.094 R)
• M13: 10,794,683 km (0.05 R)
• M14: 13,217,869 km (0.07 R)
• M15: 14,271,637 km (0.109 R)
• M16: 17,355,597 km (0.107 R)
• M17: 18,009,788 km (0.091 R)
• M18: 20,006,920 km (0.086 R)
• M19: 21,872,106 km (0.104 R)
• M20: 23,417,003 km (0.073 R)
• M21: 24,883,661 km (0.081 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 54.3

Radius: 5.3

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 5.41 AU - 6.23 AU

Year: 9363 Days

Day: 16.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,692,806 km

• M1: 65,973 km (0.099 R)
• M2: 250,427 km (0.102 R)
• M3: 1,028,785 km (0.064 R)
• M4: 4,415,232 km (0.066 R)
• M5: 6,659,349 km (0.117 R)
• M6: 7,675,119 km (0.12 R)
• M7: 14,720,730 km (0.093 R)
• M8: 15,560,273 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 612.9

Radius: 5.8

Gravity: 18.22 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 6.55 AU - 8.73 AU

Year: 14082 Days

Day: 17.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 69,692,806 km

• M1: 75,547 km (0.114 R)
• M2: 263,891 km (0.107 R)
• M3: 586,124 km (0.085 R)
• M4: 893,548 km (0.117 R)
• M5: 1,935,946 km (0.105 R)
• M6: 3,536,643 km (0.115 R)
• M7: 3,893,733 km (0.116 R)
• M8: 4,552,712 km (0.064 R)
• M9: 5,424,269 km (0.108 R)
• M10: 6,562,111 km (0.101 R)
• M11: 7,187,131 km (0.108 R)
• M12: 9,198,324 km (0.081 R)
• M13: 9,873,310 km (0.093 R)
• M14: 14,564,101 km (0.047 R)
• M15: 16,734,616 km (0.065 R)
• M16: 18,215,336 km (0.092 R)
• M17: 19,528,506 km (0.029 R)
• M18: 24,620,668 km (0.099 R)
• M19: 27,050,287 km (0.097 R)
• M20: 42,041,789 km (0.047 R)
• M21: 46,091,254 km (0.107 R)
• M22: 46,690,243 km (0.096 R)
• M23: 47,903,632 km (0.069 R)
• M24: 51,831,025 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 479.2

Radius: 7.3

Gravity: 8.99 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 9.24 AU - 10.68 AU

Year: 20961 Days

Day: 19.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 69,692,806 km

• M1: 90,806 km (0.117 R)
• M2: 349,909 km (0.06 R)
• M3: 763,398 km (0.066 R)
• M4: 1,005,597 km (0.111 R)
• M5: 1,328,279 km (0.052 R)
• M6: 1,753,437 km (0.1 R)
• M7: 2,085,095 km (0.114 R)
• M8: 2,480,034 km (0.094 R)
• M9: 3,702,846 km (0.095 R)
• M10: 4,251,422 km (0.106 R)
• M11: 4,887,811 km (0.088 R)
• M12: 6,060,210 km (0.114 R)
• M13: 7,503,081 km (0.104 R)
• M14: 8,790,969 km (0.048 R)
• M15: 11,295,986 km (0.102 R)
• M16: 11,544,916 km (0.11 R)
• M17: 14,458,335 km (0.116 R)
• M18: 15,657,212 km (0.115 R)
• M19: 18,251,090 km (0.086 R)
• M20: 20,192,122 km (0.103 R)
• M21: 25,961,514 km (0.071 R)
• M22: 39,173,399 km (0.072 R)
• M23: 44,671,121 km (0.061 R)
• M24: 47,361,040 km (0.077 R)
• M25: 48,009,397 km (0.073 R)
• M26: 52,887,485 km (0.084 R)
• M27: 53,760,538 km (0.08 R)
• M28: 62,055,890 km (0.118 R)
• M29: 64,800,711 km (0.104 R)
• M30: 67,830,367 km (0.109 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 170 - 12,773 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit