🌌 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: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.47

Radius: 1.17

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.8 AU - 0.96 AU

Year: 299 Days

Day: 43.6 Hours

Environment

Temp: 124 °C

Axial Tilt: 19.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.68

Radius: 1.23

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.78 AU - 1.12 AU

Year: 335 Days

Day: 13.2 Hours

Environment

Temp: 152 °C

Axial Tilt: 49.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.22 AU - 1.32 AU

Year: 518 Days

Day: 37.2 Hours

Environment

Temp: 15 °C

Axial Tilt: 6.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.34

Radius: 1.12

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 2.15 AU - 3.15 AU

Year: 1560 Days

Day: 28.4 Hours

Environment

Temp: -96 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,018,006 km

• M1: 44,281 km (0.099 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.57

Radius: 0.8

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 3.59 AU - 4.59 AU

Year: 2991 Days

Day: 22.4 Hours

Environment

Temp: -125 °C

Axial Tilt: 33.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 60,018,006 km

• M1: 95,743 km (0.058 R)
• M2: 585,227 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.1

Radius: 14.6

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 6.23 AU - 6.61 AU

Year: 5883 Days

Day: 5.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,018,006 km

• M1: 181,612 km (0.086 R)
• M2: 1,137,093 km (0.045 R)
• M3: 2,151,517 km (0.1 R)
• M4: 4,446,348 km (0.108 R)
• M5: 5,134,498 km (0.063 R)
• M6: 5,829,530 km (0.077 R)
• M7: 7,261,181 km (0.11 R)
• M8: 7,903,256 km (0.101 R)
• M9: 9,476,427 km (0.119 R)
• M10: 11,498,691 km (0.106 R)
• M11: 15,323,759 km (0.073 R)
• M12: 17,224,998 km (0.075 R)
• M13: 19,137,308 km (0.103 R)
• M14: 19,998,842 km (0.119 R)
• M15: 20,587,360 km (0.105 R)
• M16: 24,033,945 km (0.038 R)
• M17: 27,757,287 km (0.104 R)
• M18: 35,250,644 km (0.078 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.3

Radius: 9.5

Gravity: 7.17 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 6.65 AU - 9.25 AU

Year: 8107 Days

Day: 8.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 60,018,006 km

• M1: 119,080 km (0.11 R)
• M2: 479,760 km (0.114 R)
• M3: 902,973 km (0.107 R)
• M4: 1,735,036 km (0.083 R)
• M5: 2,320,413 km (0.106 R)
• M6: 2,669,574 km (0.048 R)
• M7: 3,204,386 km (0.08 R)
• M8: 4,684,358 km (0.082 R)
• M9: 5,785,698 km (0.095 R)
• M10: 6,682,686 km (0.084 R)
• M11: 7,279,133 km (0.036 R)
• M12: 7,709,526 km (0.066 R)
• M13: 8,198,263 km (0.097 R)
• M14: 8,707,494 km (0.06 R)
• M15: 9,192,789 km (0.08 R)
• M16: 11,009,057 km (0.072 R)
• M17: 11,734,906 km (0.098 R)
• M18: 14,164,525 km (0.069 R)
• M19: 14,650,867 km (0.05 R)
• M20: 16,441,554 km (0.114 R)
• M21: 16,843,523 km (0.096 R)
• M22: 19,617,966 km (0.054 R)
• M23: 21,708,297 km (0.047 R)
• M24: 22,355,158 km (0.066 R)
• M25: 25,071,706 km (0.045 R)
• M26: 27,435,202 km (0.044 R)
• M27: 29,449,538 km (0.092 R)
• M28: 31,973,852 km (0.066 R)
• M29: 33,878,383 km (0.095 R)
• M30: 34,529,732 km (0.043 R)
• M31: 38,968,450 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 359.3

Radius: 9

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 7.75 AU - 10.29 AU

Year: 9797 Days

Day: 7.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,018,006 km

• M1: 111,899 km (0.107 R)
• M2: 1,841,849 km (0.083 R)
• M3: 2,198,191 km (0.087 R)
• M4: 4,009,073 km (0.065 R)
• M5: 4,395,933 km (0.114 R)
• M6: 9,573,516 km (0.067 R)
• M7: 10,125,382 km (0.042 R)
• M8: 10,796,030 km (0.096 R)
• M9: 12,493,517 km (0.051 R)
• M10: 17,604,977 km (0.055 R)
• M11: 20,168,037 km (0.072 R)
• M12: 20,467,382 km (0.118 R)
• M13: 26,824,544 km (0.113 R)
• M14: 30,203,062 km (0.079 R)
• M15: 30,891,362 km (0.054 R)
• M16: 33,122,764 km (0.077 R)
• M17: 35,351,174 km (0.07 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 395.5

Radius: 5.4

Gravity: 13.56 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 11.18 AU - 16.32 AU

Year: 18439 Days

Day: 19.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 60,018,006 km

• M1: 67,169 km (0.092 R)
• M2: 235,168 km (0.092 R)
• M3: 705,504 km (0.039 R)
• M4: 1,120,787 km (0.117 R)
• M5: 1,327,532 km (0.08 R)
• M6: 2,486,317 km (0.111 R)
• M7: 3,846,760 km (0.088 R)
• M8: 5,714,339 km (0.077 R)
• M9: 6,411,316 km (0.09 R)
• M10: 7,338,374 km (0.075 R)
• M11: 7,606,005 km (0.118 R)
• M12: 8,545,479 km (0.065 R)
• M13: 8,942,063 km (0.052 R)
• M14: 9,665,518 km (0.108 R)
• M15: 9,932,999 km (0.028 R)
• M16: 10,708,664 km (0.052 R)
• M17: 11,169,575 km (0.105 R)
• M18: 15,562,966 km (0.116 R)
• M19: 16,229,125 km (0.101 R)
• M20: 17,460,016 km (0.095 R)
• M21: 18,260,066 km (0.084 R)
• M22: 23,774,542 km (0.064 R)
• M23: 24,164,245 km (0.102 R)
• M24: 27,650,474 km (0.105 R)
• M25: 28,736,405 km (0.078 R)
• M26: 33,243,190 km (0.099 R)
• M27: 33,853,101 km (0.115 R)
• M28: 35,347,134 km (0.105 R)
• M29: 38,599,691 km (0.026 R)
• M30: 41,763,387 km (0.043 R)
• M31: 53,440,099 km (0.117 R)
• M32: 57,360,461 km (0.098 R)
• M33: 58,061,327 km (0.079 R)

Kuiper Belt

Range: 30.3 - 49.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 419 - 17,256 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit