🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.54 AU - 0.54 AU

Year: 180 Days

Day: 35.9 Hours

Environment

Temp: 18 °C

Axial Tilt: 20.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.67

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.59 AU - 0.69 AU

Year: 232 Days

Day: 27.9 Hours

Environment

Temp: -21 °C

Axial Tilt: 28.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 95,037,542 km

• M1: 239,656 km (0.096 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.74

Radius: 0.89

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.91 AU - 1.25 AU

Year: 508 Days

Day: 43.7 Hours

Environment

Temp: -87 °C

Axial Tilt: 36 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.38 AU - 1.66 AU

Year: 849 Days

Day: 33.4 Hours

Environment

Temp: -117 °C

Axial Tilt: 3.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.28

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 2.05 AU - 2.33 AU

Year: 1468 Days

Day: 44 Hours

Environment

Temp: -130 °C

Axial Tilt: 39.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 95,037,542 km

• M1: 41,738 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.1

Radius: 11.4

Gravity: 7.14 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 3.98 AU - 4.08 AU

Year: 3665 Days

Day: 5.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 95,037,542 km

• M1: 141,819 km (0.082 R)
• M2: 1,095,356 km (0.11 R)
• M3: 1,455,737 km (0.029 R)
• M4: 2,965,329 km (0.081 R)
• M5: 3,601,270 km (0.102 R)
• M6: 4,468,189 km (0.043 R)
• M7: 5,862,591 km (0.072 R)
• M8: 8,941,914 km (0.053 R)
• M9: 9,731,940 km (0.116 R)
• M10: 10,227,857 km (0.071 R)
• M11: 10,871,427 km (0.097 R)
• M12: 11,270,404 km (0.056 R)
• M13: 13,213,531 km (0.047 R)
• M14: 14,029,139 km (0.095 R)
• M15: 16,043,923 km (0.079 R)
• M16: 17,813,666 km (0.119 R)
• M17: 22,229,795 km (0.084 R)
• M18: 22,657,794 km (0.101 R)
• M19: 24,804,374 km (0.051 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81.7

Radius: 14.8

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 4.11 AU - 4.83 AU

Year: 4281 Days

Day: 8.3 Hours

Environment

Temp: -174 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 95,037,542 km

• M1: 184,155 km (0.079 R)
• M2: 672,143 km (0.108 R)
• M3: 1,142,629 km (0.087 R)
• M4: 1,618,799 km (0.104 R)
• M5: 2,419,596 km (0.048 R)
• M6: 3,068,103 km (0.093 R)
• M7: 3,536,942 km (0.115 R)
• M8: 4,053,953 km (0.065 R)
• M9: 5,562,498 km (0.047 R)
• M10: 6,055,871 km (0.081 R)
• M11: 7,392,977 km (0.071 R)
• M12: 9,566,036 km (0.05 R)
• M13: 10,544,855 km (0.114 R)
• M14: 12,323,573 km (0.082 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535.4

Radius: 13.7

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 5.8 AU - 6.12 AU

Year: 6592 Days

Day: 10.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 95,037,542 km

• M1: 170,392 km (0.06 R)
• M2: 818,001 km (0.119 R)
• M3: 1,344,436 km (0.12 R)
• M4: 1,828,535 km (0.084 R)
• M5: 2,724,476 km (0.094 R)
• M6: 3,387,943 km (0.047 R)
• M7: 4,662,367 km (0.101 R)
• M8: 5,180,125 km (0.111 R)
• M9: 6,831,536 km (0.078 R)
• M10: 8,023,532 km (0.12 R)
• M11: 9,223,606 km (0.12 R)
• M12: 10,632,220 km (0.111 R)
• M13: 11,928,485 km (0.099 R)
• M14: 12,383,263 km (0.109 R)
• M15: 17,852,561 km (0.12 R)
• M16: 19,961,442 km (0.073 R)
• M17: 22,690,107 km (0.087 R)
• M18: 24,344,959 km (0.075 R)
• M19: 25,575,402 km (0.115 R)
• M20: 30,256,020 km (0.111 R)
• M21: 30,819,555 km (0.113 R)
• M22: 32,454,211 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 842.8

Radius: 4.2

Gravity: 47.78 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 12.87 AU - 16.25 AU

Year: 25170 Days

Day: 24.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 95,037,542 km

• M1: 63,429 km (0.05 R)
• M2: 220,507 km (0.085 R)
• M3: 406,009 km (0.077 R)
• M4: 643,869 km (0.09 R)
• M5: 835,205 km (0.056 R)
• M6: 1,238,371 km (0.074 R)
• M7: 1,572,274 km (0.085 R)
• M8: 1,984,865 km (0.035 R)
• M9: 2,909,379 km (0.091 R)
• M10: 3,077,976 km (0.109 R)
• M11: 3,312,845 km (0.086 R)
• M12: 4,410,444 km (0.034 R)
• M13: 5,643,430 km (0.114 R)
• M14: 5,861,843 km (0.034 R)
• M15: 6,131,269 km (0.091 R)
• M16: 6,550,891 km (0.091 R)
• M17: 7,343,909 km (0.082 R)
• M18: 8,088,458 km (0.115 R)
• M19: 9,058,600 km (0.12 R)
• M20: 11,364,501 km (0.06 R)
• M21: 11,712,915 km (0.075 R)
• M22: 17,275,113 km (0.105 R)
• M23: 20,878,328 km (0.095 R)
• M24: 26,137,590 km (0.096 R)
• M25: 27,734,248 km (0.071 R)
• M26: 28,238,244 km (0.06 R)
• M27: 35,505,259 km (0.063 R)
• M28: 37,767,628 km (0.108 R)
• M29: 41,748,577 km (0.096 R)
• M30: 42,410,398 km (0.097 R)
• M31: 44,781,823 km (0.078 R)
• M32: 46,000,148 km (0.118 R)
• M33: 47,419,234 km (0.048 R)
• M34: 54,167,594 km (0.112 R)
• M35: 58,385,057 km (0.069 R)
• M36: 62,384,855 km (0.077 R)
• M37: 69,065,896 km (0.039 R)
• M38: 69,991,309 km (0.085 R)
• M39: 82,005,663 km (0.055 R)
• M40: 84,615,548 km (0.062 R)
• M41: 89,725,661 km (0.103 R)
• M42: 91,103,757 km (0.1 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: 482 - 11,604 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit