🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.96 AU - 1.2 AU

Year: 430 Days

Day: 17.7 Hours

Environment

Temp: -9 °C

Axial Tilt: 14.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.6

Radius: 1.47

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.13 AU - 1.77 AU

Year: 669 Days

Day: 37.6 Hours

Environment

Temp: -43 °C

Axial Tilt: 48 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 75,290,025 km

• M1: 43,832 km (0.059 R)
• M2: 102,624 km (0.077 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.15

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 2.76 AU - 4.1 AU

Year: 2432 Days

Day: 13.3 Hours

Environment

Temp: -125 °C

Axial Tilt: 15.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,290,025 km

• M1: 845,078 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.8

Radius: 14.6

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 4.91 AU - 7.17 AU

Year: 5684 Days

Day: 8.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 75,290,025 km

• M1: 186,549 km (0.114 R)
• M2: 956,978 km (0.111 R)
• M3: 1,510,340 km (0.05 R)
• M4: 2,401,794 km (0.096 R)
• M5: 3,478,300 km (0.104 R)
• M6: 4,805,084 km (0.076 R)
• M7: 5,669,909 km (0.118 R)
• M8: 6,829,292 km (0.118 R)
• M9: 9,616,002 km (0.07 R)
• M10: 11,035,536 km (0.116 R)
• M11: 11,961,397 km (0.087 R)
• M12: 12,541,388 km (0.12 R)
• M13: 13,039,100 km (0.026 R)
• M14: 14,021,060 km (0.057 R)
• M15: 15,728,421 km (0.101 R)
• M16: 17,818,752 km (0.066 R)
• M17: 18,384,980 km (0.051 R)
• M18: 19,619,761 km (0.085 R)
• M19: 20,633,137 km (0.103 R)
• M20: 22,617,852 km (0.058 R)
• M21: 25,989,488 km (0.111 R)
• M22: 26,964,268 km (0.083 R)
• M23: 27,963,432 km (0.045 R)
• M24: 28,643,056 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.2

Radius: 13

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 8.31 AU - 9.47 AU

Year: 10149 Days

Day: 11.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 75,290,025 km

• M1: 161,865 km (0.113 R)
• M2: 699,520 km (0.103 R)
• M3: 1,204,412 km (0.093 R)
• M4: 1,714,392 km (0.101 R)
• M5: 3,442,696 km (0.062 R)
• M6: 5,554,868 km (0.114 R)
• M7: 6,994,598 km (0.077 R)
• M8: 10,455,994 km (0.05 R)
• M9: 12,315,944 km (0.115 R)
• M10: 12,854,496 km (0.115 R)
• M11: 13,805,939 km (0.119 R)
• M12: 20,230,718 km (0.069 R)
• M13: 22,698,036 km (0.085 R)
• M14: 24,845,663 km (0.101 R)
• M15: 25,968,844 km (0.045 R)
• M16: 33,637,829 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.9

Radius: 14.1

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 7.71 AU - 12.11 AU

Year: 11945 Days

Day: 14.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 75,290,025 km

• M1: 175,478 km (0.039 R)
• M2: 640,129 km (0.088 R)
• M3: 1,601,744 km (0.113 R)
• M4: 3,176,262 km (0.1 R)
• M5: 4,410,594 km (0.1 R)
• M6: 8,731,579 km (0.068 R)
• M7: 10,960,288 km (0.054 R)
• M8: 12,057,289 km (0.081 R)
• M9: 13,036,856 km (0.119 R)
• M10: 15,434,312 km (0.079 R)
• M11: 17,415,885 km (0.114 R)
• M12: 18,667,421 km (0.104 R)
• M13: 19,894,273 km (0.063 R)
• M14: 22,417,989 km (0.106 R)
• M15: 24,470,023 km (0.118 R)
• M16: 26,239,766 km (0.104 R)
• M17: 27,674,110 km (0.085 R)
• M18: 28,730,421 km (0.109 R)
• M19: 29,485,591 km (0.094 R)
• M20: 31,945,429 km (0.064 R)
• M21: 32,407,088 km (0.043 R)
• M22: 33,107,654 km (0.094 R)
• M23: 34,177,578 km (0.108 R)
• M24: 35,393,360 km (0.075 R)
• M25: 36,763,677 km (0.098 R)
• M26: 38,819,750 km (0.105 R)
• M27: 42,322,584 km (0.106 R)
• M28: 44,580,016 km (0.115 R)
• M29: 45,738,352 km (0.116 R)
• M30: 49,950,879 km (0.114 R)
• M31: 51,043,093 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 71.4

Radius: 3.5

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 12.52 AU - 12.78 AU

Year: 17227 Days

Day: 15.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,290,025 km

• M1: 77,940 km (0.113 R)
• M2: 352,004 km (0.118 R)
• M3: 680,670 km (0.115 R)
• M4: 866,172 km (0.079 R)
• M5: 2,023,610 km (0.072 R)
• M6: 7,759,043 km (0.082 R)
• M7: 8,177,020 km (0.118 R)
• M8: 10,958,343 km (0.049 R)
• M9: 13,268,733 km (0.033 R)
• M10: 16,371,393 km (0.06 R)
• M11: 28,063,513 km (0.091 R)
• M12: 28,506,921 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 884

Radius: 7.7

Gravity: 14.91 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 12.47 AU - 12.93 AU

Year: 17329 Days

Day: 17.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 75,290,025 km

• M1: 97,089 km (0.079 R)
• M2: 415,433 km (0.095 R)
• M3: 802,144 km (0.103 R)
• M4: 1,148,313 km (0.034 R)
• M5: 1,417,440 km (0.117 R)
• M6: 2,922,694 km (0.057 R)
• M7: 3,264,824 km (0.087 R)
• M8: 4,556,153 km (0.036 R)
• M9: 5,017,213 km (0.102 R)
• M10: 5,868,126 km (0.117 R)
• M11: 6,158,047 km (0.071 R)
• M12: 6,947,774 km (0.088 R)
• M13: 8,888,208 km (0.091 R)
• M14: 9,438,728 km (0.109 R)
• M15: 10,011,837 km (0.09 R)
• M16: 12,743,195 km (0.086 R)
• M17: 14,691,259 km (0.097 R)
• M18: 22,610,372 km (0.07 R)
• M19: 26,781,759 km (0.101 R)
• M20: 37,451,677 km (0.041 R)
• M21: 39,029,935 km (0.091 R)
• M22: 39,321,651 km (0.103 R)
• M23: 42,935,636 km (0.069 R)
• M24: 43,558,711 km (0.072 R)
• M25: 44,982,733 km (0.097 R)
• M26: 47,259,314 km (0.098 R)
• M27: 48,762,623 km (0.067 R)
• M28: 55,278,657 km (0.107 R)
• M29: 58,839,835 km (0.112 R)
• M30: 59,415,637 km (0.089 R)
• M31: 61,165,932 km (0.12 R)
• M32: 66,622,813 km (0.073 R)
• M33: 67,457,869 km (0.101 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 442 - 15,274 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit