🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.7

Radius: 11.2

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.71 AU - 0.95 AU

Year: 513 Days

Day: 12.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 55,159,549 km

• M1: 139,276 km (0.115 R)
• M2: 717,322 km (0.054 R)
• M3: 1,425,219 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604.8

Radius: 12.6

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 4.25 AU - 4.61 AU

Year: 6324 Days

Day: 6.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 55,159,549 km

• M1: 157,975 km (0.053 R)
• M2: 1,122,882 km (0.091 R)
• M3: 1,627,475 km (0.081 R)
• M4: 2,363,946 km (0.093 R)
• M5: 3,439,105 km (0.081 R)
• M6: 4,397,429 km (0.084 R)
• M7: 5,205,707 km (0.064 R)
• M8: 5,767,297 km (0.104 R)
• M9: 6,238,979 km (0.054 R)
• M10: 9,676,738 km (0.107 R)
• M11: 11,091,037 km (0.112 R)
• M12: 13,007,834 km (0.027 R)
• M13: 16,098,526 km (0.115 R)
• M14: 16,532,061 km (0.084 R)
• M15: 17,552,617 km (0.106 R)
• M16: 19,789,554 km (0.078 R)
• M17: 21,160,469 km (0.118 R)
• M18: 22,903,733 km (0.055 R)
• M19: 23,930,274 km (0.082 R)
• M20: 24,577,135 km (0.101 R)
• M21: 25,653,192 km (0.064 R)
• M22: 26,674,048 km (0.119 R)
• M23: 32,091,137 km (0.086 R)

Planet 3 - Ice Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 489.2

Radius: 3.4

Gravity: 42.32 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 5.51 AU - 5.93 AU

Year: 9279 Days

Day: 18 Hours

Environment

Temp: -233 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 55,159,549 km

• M1: 42,336 km (0.066 R)
• M2: 149,299 km (0.064 R)
• M3: 358,287 km (0.113 R)
• M4: 619,335 km (0.12 R)
• M5: 826,079 km (0.117 R)
• M6: 945,758 km (0.106 R)
• M7: 1,278,912 km (0.067 R)
• M8: 2,038,570 km (0.111 R)
• M9: 2,294,233 km (0.097 R)
• M10: 2,494,844 km (0.088 R)
• M11: 2,628,584 km (0.097 R)
• M12: 3,279,485 km (0.087 R)
• M13: 3,827,312 km (0.104 R)
• M14: 4,031,363 km (0.107 R)
• M15: 4,774,117 km (0.108 R)
• M16: 7,231,112 km (0.039 R)
• M17: 7,782,829 km (0.119 R)
• M18: 8,793,213 km (0.117 R)
• M19: 8,925,308 km (0.114 R)
• M20: 10,517,030 km (0.091 R)
• M21: 13,359,987 km (0.09 R)
• M22: 14,068,034 km (0.106 R)
• M23: 16,608,655 km (0.052 R)
• M24: 20,578,085 km (0.12 R)
• M25: 20,889,248 km (0.047 R)
• M26: 21,922,072 km (0.117 R)
• M27: 22,822,202 km (0.031 R)
• M28: 29,428,893 km (0.102 R)
• M29: 29,823,682 km (0.106 R)
• M30: 31,336,116 km (0.115 R)
• M31: 31,644,587 km (0.113 R)
• M32: 37,780,793 km (0.045 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 733.8

Radius: 6.9

Gravity: 15.41 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 6.01 AU - 6.69 AU

Year: 10853 Days

Day: 15.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,159,549 km

• M1: 85,869 km (0.078 R)
• M2: 313,856 km (0.117 R)
• M3: 537,804 km (0.111 R)
• M4: 782,995 km (0.08 R)
• M5: 2,283,911 km (0.083 R)
• M6: 2,900,852 km (0.108 R)
• M7: 3,296,987 km (0.094 R)
• M8: 3,675,919 km (0.106 R)
• M9: 5,152,001 km (0.072 R)
• M10: 6,745,518 km (0.111 R)
• M11: 7,697,409 km (0.108 R)
• M12: 8,783,340 km (0.119 R)
• M13: 10,019,317 km (0.107 R)
• M14: 11,199,495 km (0.106 R)
• M15: 15,019,925 km (0.073 R)
• M16: 20,534,552 km (0.098 R)
• M17: 22,163,972 km (0.113 R)
• M18: 28,181,995 km (0.069 R)
• M19: 34,372,504 km (0.106 R)
• M20: 43,724,615 km (0.081 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 620.8

Radius: 5.8

Gravity: 18.45 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 6.18 AU - 8.12 AU

Year: 12967 Days

Day: 16.8 Hours

Environment

Temp: -240 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,159,549 km

• M1: 74,350 km (0.037 R)
• M2: 455,974 km (0.116 R)
• M3: 805,435 km (0.091 R)
• M4: 1,415,645 km (0.05 R)
• M5: 2,218,237 km (0.081 R)
• M6: 2,642,347 km (0.033 R)
• M7: 4,575,301 km (0.046 R)
• M8: 6,126,332 km (0.11 R)
• M9: 7,997,951 km (0.098 R)
• M10: 10,113,714 km (0.094 R)
• M11: 10,435,798 km (0.053 R)
• M12: 13,585,880 km (0.092 R)
• M13: 14,991,951 km (0.119 R)
• M14: 17,546,633 km (0.12 R)
• M15: 18,326,637 km (0.081 R)
• M16: 21,945,409 km (0.073 R)
• M17: 34,988,698 km (0.112 R)
• M18: 35,725,468 km (0.119 R)
• M19: 40,364,797 km (0.062 R)
• M20: 42,828,374 km (0.078 R)
• M21: 45,245,278 km (0.12 R)
• M22: 53,685,589 km (0.054 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: 273 - 18,260 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit