🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.65

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.84 AU - 0.9 AU

Year: 289 Days

Day: 28.7 Hours

Environment

Temp: 90 °C

Axial Tilt: 12.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.95 AU - 1.05 AU

Year: 356 Days

Day: 32.1 Hours

Environment

Temp: 112 °C

Axial Tilt: 29.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.48 AU - 1.7 AU

Year: 715 Days

Day: 32.4 Hours

Environment

Temp: -31 °C

Axial Tilt: 10.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.25

Radius: 1.09

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 2.63 AU - 3.79 AU

Year: 2050 Days

Day: 19.2 Hours

Environment

Temp: -97 °C

Axial Tilt: 28.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.42

Radius: 1.64

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 3.47 AU - 4.89 AU

Year: 3046 Days

Day: 44.6 Hours

Environment

Temp: -115 °C

Axial Tilt: 11.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,035,535 km

• M1: 1,882,689 km (0.06 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.3

Radius: 12.5

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 6.96 AU - 8.82 AU

Year: 7900 Days

Day: 6.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 79,035,535 km

• M1: 155,731 km (0.088 R)
• M2: 1,231,789 km (0.119 R)
• M3: 1,739,374 km (0.097 R)
• M4: 2,908,931 km (0.111 R)
• M5: 3,850,649 km (0.084 R)
• M6: 4,434,530 km (0.106 R)
• M7: 5,582,245 km (0.117 R)
• M8: 6,584,401 km (0.112 R)
• M9: 7,186,831 km (0.085 R)
• M10: 10,564,602 km (0.096 R)
• M11: 11,285,813 km (0.117 R)
• M12: 11,820,775 km (0.111 R)
• M13: 12,372,641 km (0.114 R)
• M14: 13,647,515 km (0.108 R)
• M15: 15,200,490 km (0.088 R)
• M16: 18,655,004 km (0.05 R)
• M17: 19,785,665 km (0.113 R)
• M18: 20,961,654 km (0.073 R)
• M19: 22,100,692 km (0.077 R)
• M20: 26,227,499 km (0.071 R)
• M21: 26,788,939 km (0.114 R)
• M22: 27,262,866 km (0.054 R)
• M23: 29,615,890 km (0.051 R)
• M24: 30,635,101 km (0.1 R)
• M25: 33,833,653 km (0.102 R)
• M26: 34,722,713 km (0.115 R)
• M27: 35,627,331 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.7

Radius: 10.7

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 7.63 AU - 8.63 AU

Year: 8263 Days

Day: 5.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 79,035,535 km

• M1: 136,433 km (0.117 R)
• M2: 537,954 km (0.058 R)
• M3: 1,066,483 km (0.083 R)
• M4: 1,551,031 km (0.07 R)
• M5: 2,007,903 km (0.079 R)
• M6: 2,537,180 km (0.097 R)
• M7: 2,898,010 km (0.039 R)
• M8: 3,352,787 km (0.111 R)
• M9: 3,767,772 km (0.084 R)
• M10: 5,250,436 km (0.115 R)
• M11: 6,138,150 km (0.105 R)
• M12: 7,056,382 km (0.072 R)
• M13: 7,462,241 km (0.099 R)
• M14: 8,246,882 km (0.066 R)
• M15: 10,234,140 km (0.072 R)
• M16: 10,710,908 km (0.119 R)
• M17: 11,523,075 km (0.072 R)
• M18: 12,375,933 km (0.071 R)
• M19: 13,474,579 km (0.106 R)
• M20: 14,474,791 km (0.118 R)
• M21: 15,242,976 km (0.113 R)
• M22: 15,751,010 km (0.109 R)
• M23: 16,563,626 km (0.073 R)
• M24: 18,209,651 km (0.087 R)
• M25: 18,910,517 km (0.111 R)
• M26: 22,181,175 km (0.069 R)
• M27: 25,102,373 km (0.102 R)
• M28: 27,104,441 km (0.094 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.9

Radius: 12

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 10.79 AU - 13.67 AU

Year: 15245 Days

Day: 8.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 79,035,535 km

• M1: 149,299 km (0.11 R)
• M2: 570,117 km (0.071 R)
• M3: 958,174 km (0.109 R)
• M4: 1,445,564 km (0.049 R)
• M5: 2,599,263 km (0.091 R)
• M6: 3,155,617 km (0.056 R)
• M7: 3,846,909 km (0.11 R)
• M8: 4,636,936 km (0.091 R)
• M9: 5,244,901 km (0.118 R)
• M10: 6,621,052 km (0.093 R)
• M11: 7,129,535 km (0.081 R)
• M12: 8,321,232 km (0.094 R)
• M13: 9,117,990 km (0.091 R)
• M14: 11,332,637 km (0.084 R)
• M15: 17,989,144 km (0.077 R)
• M16: 19,663,294 km (0.111 R)
• M17: 20,716,313 km (0.11 R)
• M18: 22,839,107 km (0.073 R)
• M19: 23,904,094 km (0.025 R)
• M20: 24,299,332 km (0.112 R)
• M21: 27,297,722 km (0.075 R)
• M22: 33,399,819 km (0.06 R)
• M23: 35,406,974 km (0.073 R)
• M24: 36,832,641 km (0.075 R)
• M25: 39,798,270 km (0.111 R)
• M26: 40,633,923 km (0.058 R)
• M27: 45,743,588 km (0.096 R)
• M28: 49,485,031 km (0.075 R)
• M29: 54,102,220 km (0.102 R)
• M30: 56,865,591 km (0.059 R)
• M31: 58,281,984 km (0.066 R)
• M32: 61,000,925 km (0.059 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 845.9

Radius: 4.9

Gravity: 35.23 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 12.97 AU - 15.41 AU

Year: 19053 Days

Day: 17 Hours

Environment

Temp: -177 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 79,035,535 km

• M1: 174,880 km (0.089 R)
• M2: 646,562 km (0.113 R)
• M3: 856,747 km (0.092 R)
• M4: 1,497,624 km (0.074 R)
• M5: 1,703,321 km (0.067 R)
• M6: 2,088,386 km (0.099 R)
• M7: 2,529,401 km (0.108 R)
• M8: 2,747,066 km (0.068 R)
• M9: 3,447,034 km (0.094 R)
• M10: 5,424,718 km (0.075 R)
• M11: 6,209,508 km (0.071 R)
• M12: 6,926,830 km (0.036 R)
• M13: 10,475,441 km (0.087 R)
• M14: 11,165,387 km (0.096 R)
• M15: 11,885,102 km (0.053 R)
• M16: 12,427,694 km (0.07 R)
• M17: 13,782,003 km (0.117 R)
• M18: 18,701,230 km (0.052 R)
• M19: 20,666,796 km (0.077 R)
• M20: 21,056,199 km (0.08 R)
• M21: 25,667,853 km (0.033 R)
• M22: 28,566,312 km (0.051 R)
• M23: 33,779,798 km (0.047 R)
• M24: 35,279,217 km (0.081 R)
• M25: 37,394,531 km (0.091 R)
• M26: 44,245,365 km (0.119 R)
• M27: 53,513,851 km (0.048 R)
• M28: 55,735,529 km (0.101 R)
• M29: 58,987,188 km (0.066 R)
• M30: 68,200,323 km (0.104 R)
• M31: 72,362,136 km (0.105 R)
• M32: 75,995,419 km (0.09 R)

Kuiper Belt

Range: 30.8 - 59.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 357 - 18,007 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit