🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 2.38 AU - 2.64 AU

Year: 1514 Days

Day: 24.5 Hours

Environment

Temp: -109 °C

Axial Tilt: 22.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,698,276 km

• M1: 334,351 km (0.098 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.99 AU - 3.15 AU

Year: 1569 Days

Day: 42.1 Hours

Environment

Temp: -95 °C

Axial Tilt: 21.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.39

Radius: 0.69

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2.65 AU - 3.99 AU

Year: 2304 Days

Day: 18.8 Hours

Environment

Temp: -123 °C

Axial Tilt: 38.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931.2

Radius: 9.3

Gravity: 10.77 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 4.23 AU - 5.47 AU

Year: 4067 Days

Day: 5.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 75,698,276 km

• M1: 118,631 km (0.096 R)
• M2: 532,269 km (0.091 R)
• M3: 1,005,896 km (0.119 R)
• M4: 1,492,987 km (0.088 R)
• M5: 2,205,821 km (0.079 R)
• M6: 4,198,015 km (0.084 R)
• M7: 5,780,462 km (0.098 R)
• M8: 6,576,921 km (0.109 R)
• M9: 7,102,309 km (0.111 R)
• M10: 9,862,240 km (0.099 R)
• M11: 10,245,809 km (0.089 R)
• M12: 11,456,654 km (0.101 R)
• M13: 12,217,658 km (0.087 R)
• M14: 12,660,468 km (0.104 R)
• M15: 13,318,698 km (0.114 R)
• M16: 13,630,161 km (0.067 R)
• M17: 17,882,929 km (0.117 R)
• M18: 18,326,038 km (0.115 R)
• M19: 18,841,403 km (0.092 R)
• M20: 19,300,220 km (0.055 R)
• M21: 21,280,895 km (0.086 R)
• M22: 27,609,185 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.9

Radius: 14.8

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 4.27 AU - 5.75 AU

Year: 4270 Days

Day: 8.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 75,698,276 km

• M1: 185,801 km (0.119 R)
• M2: 674,387 km (0.074 R)
• M3: 1,532,929 km (0.073 R)
• M4: 3,222,039 km (0.076 R)
• M5: 7,243,080 km (0.046 R)
• M6: 7,911,633 km (0.064 R)
• M7: 10,357,708 km (0.077 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 313

Radius: 4

Gravity: 19.56 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 12.5 AU - 13.88 AU

Year: 18242 Days

Day: 21.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 118.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 75,698,276 km

• M1: 50,265 km (0.073 R)
• M2: 176,376 km (0.075 R)
• M3: 365,617 km (0.03 R)
• M4: 764,445 km (0.12 R)
• M5: 1,028,785 km (0.096 R)
• M6: 1,754,633 km (0.098 R)
• M7: 2,046,798 km (0.071 R)
• M8: 3,817,438 km (0.113 R)
• M9: 4,277,153 km (0.111 R)
• M10: 4,968,145 km (0.119 R)
• M11: 5,340,195 km (0.092 R)
• M12: 7,792,852 km (0.091 R)
• M13: 10,194,496 km (0.08 R)
• M14: 10,961,784 km (0.063 R)
• M15: 11,826,011 km (0.109 R)
• M16: 12,183,999 km (0.105 R)
• M17: 15,453,759 km (0.111 R)
• M18: 19,510,554 km (0.112 R)
• M19: 20,518,395 km (0.068 R)
• M20: 21,648,757 km (0.106 R)
• M21: 24,128,042 km (0.101 R)
• M22: 29,970,437 km (0.083 R)
• M23: 30,859,198 km (0.106 R)
• M24: 33,749,280 km (0.059 R)
• M25: 35,567,343 km (0.082 R)
• M26: 36,814,839 km (0.087 R)
• M27: 38,740,463 km (0.115 R)
• M28: 40,597,272 km (0.043 R)
• M29: 43,070,723 km (0.106 R)
• M30: 44,344,250 km (0.062 R)
• M31: 50,153,733 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 403.1

Radius: 6.6

Gravity: 9.25 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 12.49 AU - 20.81 AU

Year: 25871 Days

Day: 24.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 141.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 75,698,276 km

• M1: 85,570 km (0.066 R)
• M2: 617,241 km (0.079 R)
• M3: 1,235,379 km (0.104 R)
• M4: 1,984,117 km (0.112 R)
• M5: 2,536,731 km (0.077 R)
• M6: 2,874,224 km (0.032 R)
• M7: 3,493,709 km (0.069 R)
• M8: 4,101,674 km (0.047 R)
• M9: 4,885,268 km (0.104 R)
• M10: 6,052,281 km (0.102 R)
• M11: 7,882,761 km (0.05 R)
• M12: 10,775,834 km (0.116 R)
• M13: 12,525,979 km (0.093 R)
• M14: 13,361,483 km (0.117 R)
• M15: 15,065,852 km (0.069 R)
• M16: 15,850,194 km (0.094 R)
• M17: 20,848,109 km (0.106 R)
• M18: 21,722,808 km (0.12 R)
• M19: 23,544,910 km (0.078 R)
• M20: 26,691,102 km (0.041 R)
• M21: 28,305,712 km (0.109 R)
• M22: 33,275,802 km (0.041 R)
• M23: 42,080,235 km (0.094 R)
• M24: 45,221,043 km (0.103 R)
• M25: 45,705,141 km (0.115 R)
• M26: 50,738,960 km (0.098 R)
• M27: 51,788,240 km (0.079 R)
• M28: 53,030,650 km (0.073 R)
• M29: 53,930,032 km (0.112 R)
• M30: 61,495,047 km (0.025 R)
• M31: 63,088,414 km (0.036 R)
• M32: 64,913,508 km (0.032 R)
• M33: 66,357,277 km (0.114 R)
• M34: 73,008,698 km (0.071 R)
• M35: 74,345,355 km (0.049 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 198 - 17,775 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit