🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 461.5

Radius: 12.4

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.85 AU - 0.95 AU

Year: 543 Days

Day: 9.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,091,975 km

• M1: 154,235 km (0.119 R)
• M2: 567,724 km (0.062 R)
• M3: 979,567 km (0.096 R)
• M4: 1,519,765 km (0.104 R)
• M5: 2,318,019 km (0.085 R)
• M6: 2,834,281 km (0.106 R)
• M7: 4,006,530 km (0.064 R)
• M8: 4,491,078 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.7

Radius: 13.6

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.69 AU - 1.13 AU

Year: 552 Days

Day: 9.2 Hours

Environment

Temp: -144 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 50,091,975 km

• M1: 169,195 km (0.103 R)
• M2: 692,339 km (0.078 R)
• M3: 1,277,865 km (0.058 R)
• M4: 2,039,019 km (0.103 R)
• M5: 2,477,042 km (0.11 R)
• M6: 3,065,111 km (0.051 R)
• M7: 3,536,045 km (0.119 R)
• M8: 4,327,118 km (0.11 R)
• M9: 4,832,610 km (0.104 R)
• M10: 5,757,424 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.7

Radius: 14.5

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.09 AU - 1.59 AU

Year: 986 Days

Day: 11.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 66.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,091,975 km

• M1: 180,265 km (0.077 R)
• M2: 700,567 km (0.084 R)
• M3: 1,207,404 km (0.098 R)
• M4: 1,688,661 km (0.118 R)
• M5: 2,331,932 km (0.041 R)
• M6: 2,813,038 km (0.056 R)
• M7: 3,415,469 km (0.105 R)
• M8: 4,103,470 km (0.113 R)
• M9: 5,838,057 km (0.114 R)
• M10: 7,004,472 km (0.108 R)
• M11: 8,095,040 km (0.104 R)
• M12: 9,187,104 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.3

Radius: 10.3

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 2.29 AU - 2.39 AU

Year: 2276 Days

Day: 6.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 50,091,975 km

• M1: 129,253 km (0.077 R)
• M2: 492,327 km (0.046 R)
• M3: 902,225 km (0.098 R)
• M4: 1,288,486 km (0.103 R)
• M5: 1,660,237 km (0.066 R)
• M6: 3,216,953 km (0.093 R)
• M7: 3,658,416 km (0.079 R)
• M8: 4,101,674 km (0.1 R)
• M9: 4,919,975 km (0.058 R)
• M10: 5,253,578 km (0.081 R)
• M11: 6,016,527 km (0.094 R)
• M12: 7,016,439 km (0.098 R)
• M13: 9,309,924 km (0.042 R)
• M14: 9,718,476 km (0.071 R)
• M15: 10,174,450 km (0.073 R)
• M16: 11,205,329 km (0.076 R)
• M17: 12,426,347 km (0.112 R)
• M18: 13,048,076 km (0.118 R)
• M19: 13,473,981 km (0.099 R)
• M20: 15,840,171 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.1

Radius: 10.4

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 2.4 AU - 2.76 AU

Year: 2635 Days

Day: 8.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 50,091,975 km

• M1: 129,402 km (0.076 R)
• M2: 479,611 km (0.11 R)
• M3: 983,008 km (0.09 R)
• M4: 1,307,485 km (0.076 R)
• M5: 1,845,140 km (0.072 R)
• M6: 2,374,717 km (0.088 R)
• M7: 3,196,009 km (0.105 R)
• M8: 5,635,950 km (0.107 R)
• M9: 6,431,512 km (0.12 R)
• M10: 7,194,012 km (0.085 R)
• M11: 7,707,432 km (0.106 R)
• M12: 8,044,326 km (0.08 R)
• M13: 8,990,682 km (0.088 R)
• M14: 10,276,177 km (0.115 R)
• M15: 10,719,286 km (0.086 R)
• M16: 11,462,039 km (0.094 R)
• M17: 12,659,271 km (0.114 R)
• M18: 13,651,105 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.5

Radius: 12.2

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 2.91 AU - 3.59 AU

Year: 3725 Days

Day: 12.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 50,091,975 km

• M1: 151,991 km (0.1 R)
• M2: 802,293 km (0.067 R)
• M3: 1,206,806 km (0.11 R)
• M4: 1,593,068 km (0.106 R)
• M5: 2,037,224 km (0.089 R)
• M6: 2,705,926 km (0.095 R)
• M7: 3,327,505 km (0.086 R)
• M8: 4,128,153 km (0.116 R)
• M9: 4,738,363 km (0.106 R)
• M10: 5,486,053 km (0.112 R)
• M11: 6,544,608 km (0.075 R)
• M12: 7,834,291 km (0.061 R)
• M13: 9,513,677 km (0.067 R)
• M14: 10,911,818 km (0.1 R)
• M15: 13,235,821 km (0.081 R)
• M16: 15,130,777 km (0.085 R)
• M17: 16,417,020 km (0.112 R)
• M18: 17,774,920 km (0.052 R)
• M19: 19,206,422 km (0.1 R)
• M20: 19,638,012 km (0.104 R)
• M21: 20,329,453 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.4

Radius: 14.7

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 3.84 AU - 3.86 AU

Year: 4803 Days

Day: 7.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,091,975 km

• M1: 191,336 km (0.086 R)
• M2: 656,286 km (0.109 R)
• M3: 1,258,417 km (0.101 R)
• M4: 2,410,022 km (0.096 R)
• M5: 3,121,659 km (0.057 R)
• M6: 4,142,814 km (0.063 R)
• M7: 4,647,258 km (0.098 R)
• M8: 5,929,162 km (0.065 R)
• M9: 6,898,107 km (0.108 R)
• M10: 8,123,314 km (0.1 R)
• M11: 15,440,146 km (0.101 R)
• M12: 17,015,561 km (0.053 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 423.6

Radius: 5.3

Gravity: 15.08 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 6.19 AU - 9.21 AU

Year: 13585 Days

Day: 23.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 50,091,975 km

• M1: 67,469 km (0.093 R)
• M2: 270,772 km (0.105 R)
• M3: 436,826 km (0.106 R)
• M4: 975,977 km (0.107 R)
• M5: 1,471,295 km (0.087 R)
• M6: 2,303,957 km (0.093 R)
• M7: 2,538,676 km (0.118 R)
• M8: 2,810,944 km (0.102 R)
• M9: 3,033,396 km (0.092 R)
• M10: 4,564,081 km (0.094 R)
• M11: 5,292,922 km (0.112 R)
• M12: 5,667,815 km (0.05 R)
• M13: 7,140,606 km (0.061 R)
• M14: 7,513,703 km (0.116 R)
• M15: 8,343,672 km (0.107 R)
• M16: 8,898,381 km (0.069 R)
• M17: 9,330,419 km (0.074 R)
• M18: 10,081,251 km (0.094 R)
• M19: 12,220,800 km (0.102 R)
• M20: 12,814,554 km (0.112 R)
• M21: 14,252,937 km (0.066 R)
• M22: 15,519,732 km (0.066 R)
• M23: 16,286,571 km (0.039 R)
• M24: 17,970,743 km (0.043 R)
• M25: 20,585,265 km (0.087 R)
• M26: 22,904,481 km (0.069 R)
• M27: 24,637,124 km (0.104 R)
• M28: 25,392,144 km (0.106 R)
• M29: 26,065,335 km (0.116 R)
• M30: 30,571,821 km (0.109 R)
• M31: 33,236,009 km (0.11 R)
• M32: 34,390,307 km (0.111 R)
• M33: 35,810,439 km (0.044 R)
• M34: 39,530,938 km (0.119 R)
• M35: 40,434,659 km (0.11 R)
• M36: 40,826,157 km (0.071 R)
• M37: 43,092,564 km (0.093 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 290 - 17,317 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit