🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.95 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.17

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.88 AU - 1.9 AU

Year: 935 Days

Day: 18.2 Hours

Environment

Temp: -58 °C

Axial Tilt: 39.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.01

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.89 AU - 2.75 AU

Year: 1272 Days

Day: 25.9 Hours

Environment

Temp: -69 °C

Axial Tilt: 45.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,469,457 km

• M1: 115,490 km (0.058 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 3.01 AU - 3.65 AU

Year: 2187 Days

Day: 32.7 Hours

Environment

Temp: -109 °C

Axial Tilt: 10.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.98 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 6.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 519.1

Radius: 10.2

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 5.34 AU - 7.92 AU

Year: 6144 Days

Day: 8.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,469,457 km

• M1: 127,158 km (0.104 R)
• M2: 1,054,964 km (0.105 R)
• M3: 1,694,495 km (0.078 R)
• M4: 2,095,118 km (0.089 R)
• M5: 2,558,722 km (0.071 R)
• M6: 3,805,022 km (0.094 R)
• M7: 4,626,763 km (0.114 R)
• M8: 7,992,266 km (0.112 R)
• M9: 8,925,907 km (0.109 R)
• M10: 11,196,054 km (0.106 R)
• M11: 11,818,830 km (0.087 R)
• M12: 12,821,884 km (0.058 R)
• M13: 13,664,419 km (0.079 R)
• M14: 14,375,907 km (0.045 R)
• M15: 15,111,779 km (0.114 R)
• M16: 16,781,889 km (0.102 R)
• M17: 19,376,515 km (0.041 R)
• M18: 20,698,062 km (0.066 R)
• M19: 21,272,069 km (0.081 R)
• M20: 21,856,698 km (0.101 R)
• M21: 24,382,209 km (0.068 R)
• M22: 24,701,002 km (0.09 R)
• M23: 29,914,338 km (0.082 R)

Planet 5 - Ice Giant

Semi-Major Axis: 13.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 431.9

Radius: 7.7

Gravity: 7.28 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 10.34 AU - 16.28 AU

Year: 17476 Days

Day: 20 Hours

Environment

Temp: -180 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,469,457 km

• M1: 106,813 km (0.081 R)
• M2: 801,396 km (0.106 R)
• M3: 1,106,426 km (0.11 R)
• M4: 1,445,265 km (0.095 R)
• M5: 2,215,993 km (0.094 R)
• M6: 2,456,547 km (0.091 R)
• M7: 4,050,811 km (0.085 R)
• M8: 4,570,065 km (0.098 R)
• M9: 7,809,158 km (0.116 R)
• M10: 8,419,069 km (0.045 R)
• M11: 9,947,361 km (0.067 R)
• M12: 11,414,467 km (0.1 R)
• M13: 14,631,270 km (0.075 R)
• M14: 15,776,442 km (0.098 R)
• M15: 23,736,096 km (0.039 R)
• M16: 24,912,982 km (0.042 R)
• M17: 42,922,621 km (0.034 R)
• M18: 44,813,837 km (0.071 R)
• M19: 47,676,991 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 15.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 520.8

Radius: 7

Gravity: 10.63 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 11.54 AU - 18.88 AU

Year: 21348 Days

Day: 20.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,469,457 km

• M1: 228,586 km (0.092 R)
• M2: 531,072 km (0.076 R)
• M3: 1,076,057 km (0.094 R)
• M4: 2,102,299 km (0.079 R)
• M5: 2,416,754 km (0.075 R)
• M6: 2,714,304 km (0.115 R)
• M7: 3,411,131 km (0.118 R)
• M8: 5,378,193 km (0.079 R)
• M9: 6,216,390 km (0.083 R)
• M10: 10,332,426 km (0.117 R)
• M11: 14,590,879 km (0.119 R)
• M12: 14,965,921 km (0.082 R)
• M13: 23,577,223 km (0.096 R)
• M14: 26,902,783 km (0.115 R)
• M15: 35,670,415 km (0.067 R)
• M16: 38,161,669 km (0.063 R)
• M17: 45,526,970 km (0.04 R)
• M18: 48,953,958 km (0.082 R)
• M19: 49,625,653 km (0.108 R)
• M20: 50,473,873 km (0.116 R)
• M21: 58,359,625 km (0.103 R)
• M22: 66,822,078 km (0.071 R)
• M23: 68,900,890 km (0.095 R)
• M24: 69,321,858 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 296.9

Radius: 5

Gravity: 11.88 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 15.63 AU - 17.99 AU

Year: 24804 Days

Day: 19.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,469,457 km

• M1: 62,233 km (0.026 R)
• M2: 232,924 km (0.064 R)
• M3: 759,658 km (0.09 R)
• M4: 1,112,260 km (0.117 R)
• M5: 1,732,643 km (0.087 R)
• M6: 2,217,938 km (0.104 R)
• M7: 2,836,824 km (0.109 R)
• M8: 3,186,435 km (0.046 R)
• M9: 4,912,196 km (0.094 R)
• M10: 9,292,272 km (0.087 R)
• M11: 10,004,806 km (0.106 R)
• M12: 24,132,680 km (0.109 R)
• M13: 24,745,433 km (0.066 R)
• M14: 27,631,924 km (0.098 R)
• M15: 28,869,547 km (0.048 R)
• M16: 36,945,588 km (0.055 R)
• M17: 38,033,015 km (0.118 R)
• M18: 42,744,450 km (0.104 R)
• M19: 52,620,453 km (0.072 R)
• M20: 52,962,134 km (0.105 R)
• M21: 56,818,468 km (0.092 R)

Kuiper Belt

Range: 30.5 - 57.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 460 - 15,052 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit