🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.2

Radius: 11.3

Gravity: 5.19 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.74 AU - 0.96 AU

Year: 523 Days

Day: 7.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,680,657 km

• M1: 140,472 km (0.076 R)
• M2: 631,602 km (0.081 R)
• M3: 1,016,368 km (0.091 R)
• M4: 1,724,415 km (0.09 R)
• M5: 2,612,876 km (0.11 R)
• M6: 3,125,399 km (0.109 R)
• M7: 3,613,836 km (0.034 R)
• M8: 4,027,025 km (0.118 R)
• M9: 4,412,688 km (0.046 R)
• M10: 4,854,301 km (0.085 R)
• M11: 5,208,848 km (0.116 R)
• M12: 6,378,404 km (0.057 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 498.9

Radius: 8.3

Gravity: 7.24 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.93 AU - 1.01 AU

Year: 637 Days

Day: 13.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,680,657 km

• M1: 105,018 km (0.103 R)
• M2: 517,609 km (0.043 R)
• M3: 793,318 km (0.103 R)
• M4: 1,805,646 km (0.075 R)
• M5: 2,086,890 km (0.073 R)
• M6: 2,760,829 km (0.109 R)
• M7: 3,880,419 km (0.086 R)
• M8: 4,534,461 km (0.041 R)
• M9: 4,977,271 km (0.115 R)
• M10: 6,798,176 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.2

Radius: 14.6

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.35 AU - 1.71 AU

Year: 1262 Days

Day: 11.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,680,657 km

• M1: 181,612 km (0.074 R)
• M2: 642,672 km (0.111 R)
• M3: 1,612,515 km (0.114 R)
• M4: 2,464,775 km (0.041 R)
• M5: 3,079,173 km (0.026 R)
• M6: 4,009,971 km (0.061 R)
• M7: 4,919,825 km (0.102 R)
• M8: 5,482,612 km (0.077 R)
• M9: 6,627,036 km (0.118 R)
• M10: 7,386,694 km (0.065 R)
• M11: 8,307,170 km (0.087 R)
• M12: 8,781,844 km (0.113 R)
• M13: 9,330,718 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.7

Radius: 8.2

Gravity: 10.24 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.82 AU - 2 AU

Year: 1760 Days

Day: 7.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,680,657 km

• M1: 105,317 km (0.06 R)
• M2: 362,176 km (0.111 R)
• M3: 990,637 km (0.069 R)
• M4: 1,292,974 km (0.085 R)
• M5: 1,896,901 km (0.081 R)
• M6: 3,024,869 km (0.112 R)
• M7: 3,937,715 km (0.08 R)
• M8: 4,253,965 km (0.102 R)
• M9: 5,284,395 km (0.055 R)
• M10: 6,626,138 km (0.056 R)
• M11: 6,914,414 km (0.105 R)
• M12: 7,544,071 km (0.099 R)
• M13: 7,887,548 km (0.088 R)
• M14: 8,917,529 km (0.114 R)
• M15: 9,432,295 km (0.087 R)
• M16: 9,696,934 km (0.117 R)
• M17: 11,465,330 km (0.078 R)
• M18: 12,112,640 km (0.074 R)
• M19: 12,905,210 km (0.091 R)
• M20: 13,397,088 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.3

Radius: 14.6

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 3.9 AU - 4.96 AU

Year: 6218 Days

Day: 8.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 66,680,657 km

• M1: 181,612 km (0.091 R)
• M2: 706,700 km (0.102 R)
• M3: 1,811,331 km (0.118 R)
• M4: 2,624,545 km (0.094 R)
• M5: 3,906,748 km (0.102 R)
• M6: 6,447,070 km (0.045 R)
• M7: 8,144,258 km (0.093 R)
• M8: 8,632,545 km (0.093 R)
• M9: 10,403,335 km (0.059 R)
• M10: 17,763,401 km (0.116 R)
• M11: 18,657,248 km (0.039 R)
• M12: 20,460,351 km (0.089 R)
• M13: 24,243,831 km (0.102 R)
• M14: 28,563,769 km (0.091 R)
• M15: 30,660,532 km (0.09 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 599.1

Radius: 7.7

Gravity: 10.1 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 5.15 AU - 7.01 AU

Year: 9997 Days

Day: 24.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,680,657 km

• M1: 98,435 km (0.083 R)
• M2: 450,738 km (0.099 R)
• M3: 752,028 km (0.091 R)
• M4: 1,078,451 km (0.068 R)
• M5: 2,090,481 km (0.113 R)
• M6: 3,201,993 km (0.087 R)
• M7: 4,694,232 km (0.05 R)
• M8: 5,059,400 km (0.119 R)
• M9: 5,476,479 km (0.12 R)
• M10: 6,713,803 km (0.099 R)
• M11: 7,746,477 km (0.068 R)
• M12: 9,488,843 km (0.101 R)
• M13: 12,947,845 km (0.049 R)
• M14: 15,648,835 km (0.05 R)
• M15: 15,985,580 km (0.073 R)
• M16: 18,034,173 km (0.091 R)
• M17: 23,776,637 km (0.082 R)
• M18: 27,690,117 km (0.046 R)
• M19: 29,185,946 km (0.116 R)
• M20: 30,840,050 km (0.099 R)
• M21: 34,788,237 km (0.068 R)
• M22: 38,569,772 km (0.054 R)
• M23: 45,557,189 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 566.6

Radius: 3.4

Gravity: 49.01 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 7.22 AU - 8.74 AU

Year: 15033 Days

Day: 20.2 Hours

Environment

Temp: -237 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 66,680,657 km

• M1: 42,486 km (0.096 R)
• M2: 211,232 km (0.034 R)
• M3: 535,860 km (0.114 R)
• M4: 679,174 km (0.055 R)
• M5: 1,557,015 km (0.084 R)
• M6: 1,868,926 km (0.04 R)
• M7: 2,486,317 km (0.117 R)
• M8: 2,749,459 km (0.118 R)
• M9: 3,515,400 km (0.11 R)
• M10: 4,168,694 km (0.077 R)
• M11: 5,527,193 km (0.099 R)
• M12: 6,090,279 km (0.051 R)
• M13: 6,526,806 km (0.072 R)
• M14: 6,690,615 km (0.09 R)
• M15: 7,596,131 km (0.118 R)
• M16: 7,869,147 km (0.061 R)
• M17: 8,531,567 km (0.096 R)
• M18: 8,876,240 km (0.117 R)
• M19: 10,684,130 km (0.086 R)
• M20: 10,854,522 km (0.099 R)
• M21: 12,850,756 km (0.11 R)
• M22: 15,801,425 km (0.095 R)
• M23: 17,550,822 km (0.098 R)
• M24: 19,257,285 km (0.038 R)
• M25: 19,594,329 km (0.09 R)
• M26: 19,764,272 km (0.114 R)
• M27: 24,341,518 km (0.092 R)
• M28: 27,084,096 km (0.086 R)
• M29: 30,821,799 km (0.061 R)
• M30: 37,050,157 km (0.114 R)
• M31: 37,965,546 km (0.116 R)
• M32: 39,030,084 km (0.098 R)
• M33: 41,918,520 km (0.042 R)
• M34: 50,470,282 km (0.073 R)
• M35: 56,086,934 km (0.052 R)
• M36: 56,601,701 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 100.3

Radius: 3.6

Gravity: 7.74 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 8.7 AU - 9.86 AU

Year: 18852 Days

Day: 15.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 66,680,657 km

• M1: 44,879 km (0.043 R)
• M2: 188,194 km (0.107 R)
• M3: 348,264 km (0.074 R)
• M4: 597,344 km (0.094 R)
• M5: 837,000 km (0.107 R)
• M6: 1,126,622 km (0.073 R)
• M7: 1,626,129 km (0.072 R)
• M8: 1,753,137 km (0.096 R)
• M9: 1,948,363 km (0.07 R)
• M10: 3,280,681 km (0.102 R)
• M11: 4,042,882 km (0.068 R)
• M12: 4,277,003 km (0.088 R)
• M13: 10,378,203 km (0.108 R)
• M14: 10,620,402 km (0.06 R)
• M15: 11,267,712 km (0.087 R)
• M16: 13,827,780 km (0.086 R)
• M17: 14,598,807 km (0.095 R)
• M18: 15,904,198 km (0.052 R)
• M19: 16,750,025 km (0.093 R)
• M20: 18,249,295 km (0.115 R)
• M21: 21,277,604 km (0.113 R)
• M22: 21,511,575 km (0.093 R)
• M23: 23,032,836 km (0.026 R)
• M24: 24,114,130 km (0.114 R)
• M25: 29,448,640 km (0.062 R)
• M26: 31,826,349 km (0.111 R)
• M27: 32,749,966 km (0.075 R)
• M28: 38,554,214 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 491.4

Radius: 4.3

Gravity: 26.58 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 7.34 AU - 11.56 AU

Year: 19372 Days

Day: 24.9 Hours

Environment

Temp: -245 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,680,657 km

• M1: 53,706 km (0.114 R)
• M2: 352,752 km (0.102 R)
• M3: 610,808 km (0.086 R)
• M4: 885,470 km (0.119 R)
• M5: 1,171,351 km (0.07 R)
• M6: 3,767,473 km (0.091 R)
• M7: 6,970,962 km (0.118 R)
• M8: 12,653,885 km (0.115 R)
• M9: 15,251,054 km (0.095 R)
• M10: 16,634,236 km (0.096 R)
• M11: 21,281,643 km (0.118 R)
• M12: 28,049,601 km (0.071 R)
• M13: 28,727,728 km (0.113 R)
• M14: 29,882,324 km (0.101 R)
• M15: 34,423,068 km (0.08 R)
• M16: 35,989,059 km (0.083 R)
• M17: 42,728,443 km (0.066 R)
• M18: 45,612,989 km (0.096 R)
• M19: 47,023,547 km (0.058 R)
• M20: 51,261,506 km (0.111 R)
• M21: 55,569,775 km (0.108 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: 328 - 19,083 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit