🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.75

Radius: 1.25

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.74 AU - 1.06 AU

Year: 307 Days

Day: 35.4 Hours

Environment

Temp: 114 °C

Axial Tilt: 33.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 66,410,675 km

• M1: 45,777 km (0.093 R)
• M2: 60,737 km (0.086 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.65 AU - 1.67 AU

Year: 770 Days

Day: 28.6 Hours

Environment

Temp: -52 °C

Axial Tilt: 6.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.36

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.35 AU - 3.17 AU

Year: 1650 Days

Day: 36.2 Hours

Environment

Temp: -87 °C

Axial Tilt: 16.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.88 AU - 3 AU

Year: 1814 Days

Day: 33.3 Hours

Environment

Temp: -87 °C

Axial Tilt: 13.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 66,410,675 km

• M1: 172,636 km (0.032 R)
• M2: 795,262 km (0.056 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.26

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 3.46 AU - 3.98 AU

Year: 2582 Days

Day: 37.5 Hours

Environment

Temp: -105 °C

Axial Tilt: 26.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.3

Radius: 9.8

Gravity: 7.84 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 5.59 AU - 6.11 AU

Year: 5092 Days

Day: 7.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 66,410,675 km

• M1: 121,922 km (0.116 R)
• M2: 693,536 km (0.098 R)
• M3: 1,022,352 km (0.113 R)
• M4: 1,588,131 km (0.107 R)
• M5: 2,088,386 km (0.104 R)
• M6: 2,585,949 km (0.108 R)
• M7: 3,043,419 km (0.103 R)
• M8: 3,364,007 km (0.12 R)
• M9: 4,145,357 km (0.118 R)
• M10: 6,842,607 km (0.038 R)
• M11: 7,831,598 km (0.099 R)
• M12: 8,360,576 km (0.039 R)
• M13: 10,179,238 km (0.11 R)
• M14: 10,855,569 km (0.117 R)
• M15: 12,805,578 km (0.095 R)
• M16: 13,117,040 km (0.093 R)
• M17: 15,382,850 km (0.085 R)
• M18: 16,577,688 km (0.115 R)
• M19: 18,091,918 km (0.031 R)
• M20: 19,286,606 km (0.093 R)
• M21: 20,745,934 km (0.1 R)
• M22: 22,804,400 km (0.107 R)
• M23: 25,157,276 km (0.047 R)
• M24: 27,067,341 km (0.081 R)
• M25: 30,523,950 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.6

Radius: 12.4

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 8.06 AU - 9.14 AU

Year: 9077 Days

Day: 7.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 66,410,675 km

• M1: 154,235 km (0.097 R)
• M2: 609,163 km (0.044 R)
• M3: 1,015,171 km (0.104 R)
• M4: 2,647,134 km (0.076 R)
• M5: 3,071,244 km (0.073 R)
• M6: 3,516,298 km (0.08 R)
• M7: 3,950,880 km (0.112 R)
• M8: 4,364,219 km (0.075 R)
• M9: 5,118,042 km (0.062 R)
• M10: 5,956,688 km (0.102 R)
• M11: 6,390,821 km (0.103 R)
• M12: 6,807,302 km (0.116 R)
• M13: 8,795,906 km (0.056 R)
• M14: 11,145,939 km (0.092 R)
• M15: 13,762,406 km (0.091 R)
• M16: 14,266,999 km (0.075 R)
• M17: 14,718,785 km (0.094 R)
• M18: 15,855,878 km (0.091 R)
• M19: 23,046,300 km (0.067 R)
• M20: 30,315,410 km (0.087 R)
• M21: 31,823,207 km (0.116 R)
• M22: 36,406,138 km (0.098 R)
• M23: 37,129,593 km (0.092 R)
• M24: 39,231,443 km (0.097 R)
• M25: 43,400,885 km (0.11 R)
• M26: 43,942,131 km (0.08 R)
• M27: 48,579,814 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.9

Radius: 8.6

Gravity: 10.9 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 9.26 AU - 14.82 AU

Year: 15035 Days

Day: 7.8 Hours

Environment

Temp: -174 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 66,410,675 km

• M1: 106,962 km (0.055 R)
• M2: 410,197 km (0.07 R)
• M3: 882,478 km (0.057 R)
• M4: 1,232,387 km (0.086 R)
• M5: 2,120,699 km (0.079 R)
• M6: 2,599,712 km (0.097 R)
• M7: 3,438,208 km (0.067 R)
• M8: 3,716,460 km (0.118 R)
• M9: 4,162,262 km (0.071 R)
• M10: 4,610,158 km (0.095 R)
• M11: 5,415,443 km (0.034 R)
• M12: 6,773,492 km (0.106 R)
• M13: 7,671,080 km (0.103 R)
• M14: 8,197,664 km (0.112 R)
• M15: 9,163,468 km (0.092 R)
• M16: 10,203,173 km (0.096 R)
• M17: 11,380,658 km (0.094 R)
• M18: 12,515,657 km (0.112 R)
• M19: 13,381,081 km (0.1 R)
• M20: 18,484,163 km (0.104 R)
• M21: 21,888,263 km (0.093 R)
• M22: 31,330,132 km (0.116 R)
• M23: 32,303,267 km (0.09 R)
• M24: 32,797,239 km (0.062 R)
• M25: 33,547,771 km (0.108 R)
• M26: 34,054,459 km (0.097 R)
• M27: 36,932,872 km (0.087 R)
• M28: 38,569,323 km (0.092 R)
• M29: 41,403,305 km (0.028 R)
• M30: 42,722,758 km (0.06 R)
• M31: 58,037,990 km (0.059 R)
• M32: 62,511,415 km (0.072 R)

Kuiper Belt

Range: 30.5 - 52.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 256 - 17,526 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit