🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.02

Radius: 1.56

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.4 AU - 0.62 AU

Year: 232 Days

Day: 21.4 Hours

Environment

Temp: -118 °C

Axial Tilt: 12.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 0.99 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295.4

Radius: 9.6

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.38 AU - 1.56 AU

Year: 1133 Days

Day: 7.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 68,757,062 km

• M1: 119,379 km (0.086 R)
• M2: 687,253 km (0.08 R)
• M3: 987,496 km (0.094 R)
• M4: 2,220,032 km (0.063 R)
• M5: 3,318,829 km (0.105 R)
• M6: 4,273,114 km (0.098 R)
• M7: 4,662,218 km (0.06 R)
• M8: 4,986,995 km (0.102 R)
• M9: 5,326,881 km (0.111 R)
• M10: 7,447,431 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.3

Radius: 9.3

Gravity: 8.56 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.25 AU - 2.07 AU

Year: 1360 Days

Day: 9.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,757,062 km

• M1: 120,127 km (0.109 R)
• M2: 449,990 km (0.083 R)
• M3: 851,361 km (0.099 R)
• M4: 1,282,652 km (0.04 R)
• M5: 2,191,160 km (0.087 R)
• M6: 2,605,097 km (0.092 R)
• M7: 2,942,291 km (0.056 R)
• M8: 3,232,960 km (0.116 R)
• M9: 4,332,504 km (0.105 R)
• M10: 5,403,625 km (0.044 R)
• M11: 6,210,107 km (0.101 R)
• M12: 6,891,226 km (0.067 R)
• M13: 8,005,132 km (0.06 R)
• M14: 8,871,303 km (0.049 R)
• M15: 10,721,380 km (0.066 R)
• M16: 11,415,215 km (0.12 R)
• M17: 12,624,864 km (0.042 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.6

Radius: 12.2

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.51 AU - 1.95 AU

Year: 1447 Days

Day: 11 Hours

Environment

Temp: -179 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,757,062 km

• M1: 151,692 km (0.081 R)
• M2: 612,304 km (0.11 R)
• M3: 1,032,973 km (0.028 R)
• M4: 1,470,846 km (0.087 R)
• M5: 1,968,409 km (0.079 R)
• M6: 2,411,069 km (0.026 R)
• M7: 3,263,029 km (0.082 R)
• M8: 3,666,195 km (0.092 R)
• M9: 4,157,624 km (0.113 R)
• M10: 4,854,002 km (0.083 R)
• M11: 5,295,166 km (0.092 R)
• M12: 5,740,220 km (0.068 R)
• M13: 6,405,482 km (0.089 R)
• M14: 8,866,217 km (0.081 R)
• M15: 9,921,181 km (0.083 R)
• M16: 12,165,000 km (0.103 R)
• M17: 13,712,889 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507

Radius: 11.5

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.77 AU - 2.11 AU

Year: 1718 Days

Day: 12.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,757,062 km

• M1: 143,764 km (0.091 R)
• M2: 864,676 km (0.066 R)
• M3: 1,327,083 km (0.051 R)
• M4: 1,880,894 km (0.115 R)
• M5: 2,253,692 km (0.103 R)
• M6: 3,333,190 km (0.071 R)
• M7: 3,766,874 km (0.088 R)
• M8: 4,366,762 km (0.093 R)
• M9: 5,008,986 km (0.063 R)
• M10: 5,691,002 km (0.054 R)
• M11: 6,654,263 km (0.11 R)
• M12: 7,110,237 km (0.043 R)
• M13: 9,363,181 km (0.094 R)
• M14: 9,936,590 km (0.107 R)
• M15: 11,153,868 km (0.109 R)
• M16: 12,317,141 km (0.119 R)
• M17: 12,928,248 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201.7

Radius: 10.7

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.81 AU - 2.73 AU

Year: 2175 Days

Day: 10.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,757,062 km

• M1: 186,100 km (0.1 R)
• M2: 520,750 km (0.104 R)
• M3: 1,045,689 km (0.102 R)
• M4: 1,618,499 km (0.056 R)
• M5: 1,968,110 km (0.075 R)
• M6: 3,177,459 km (0.084 R)
• M7: 3,576,735 km (0.054 R)
• M8: 4,110,201 km (0.071 R)
• M9: 4,677,477 km (0.111 R)
• M10: 5,176,386 km (0.114 R)
• M11: 6,440,787 km (0.089 R)
• M12: 6,864,897 km (0.079 R)
• M13: 7,535,993 km (0.114 R)
• M14: 8,332,302 km (0.039 R)
• M15: 9,301,547 km (0.105 R)
• M16: 9,782,953 km (0.066 R)
• M17: 10,407,973 km (0.111 R)
• M18: 11,293,891 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735.3

Radius: 10.4

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.94 AU - 2.72 AU

Year: 2261 Days

Day: 6.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,757,062 km

• M1: 129,402 km (0.074 R)
• M2: 462,108 km (0.099 R)
• M3: 1,278,314 km (0.066 R)
• M4: 1,723,218 km (0.086 R)
• M5: 2,129,675 km (0.113 R)
• M6: 3,603,962 km (0.07 R)
• M7: 4,848,617 km (0.118 R)
• M8: 5,353,061 km (0.107 R)
• M9: 6,175,101 km (0.111 R)
• M10: 7,913,578 km (0.053 R)
• M11: 8,290,714 km (0.106 R)
• M12: 9,706,209 km (0.062 R)
• M13: 11,355,226 km (0.099 R)
• M14: 13,314,958 km (0.1 R)
• M15: 13,759,414 km (0.11 R)
• M16: 15,056,726 km (0.113 R)
• M17: 16,997,160 km (0.114 R)
• M18: 17,626,369 km (0.036 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 834.4

Radius: 8.1

Gravity: 12.72 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.29 AU - 3.77 AU

Year: 3353 Days

Day: 7.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 68,757,062 km

• M1: 100,679 km (0.091 R)
• M2: 369,956 km (0.089 R)
• M3: 930,050 km (0.072 R)
• M4: 1,258,417 km (0.056 R)
• M5: 1,747,602 km (0.028 R)
• M6: 2,112,322 km (0.1 R)
• M7: 2,559,021 km (0.112 R)
• M8: 2,908,183 km (0.112 R)
• M9: 3,600,970 km (0.115 R)
• M10: 4,062,480 km (0.097 R)
• M11: 4,658,029 km (0.034 R)
• M12: 4,927,006 km (0.102 R)
• M13: 5,469,448 km (0.118 R)
• M14: 6,642,893 km (0.043 R)
• M15: 8,397,527 km (0.069 R)
• M16: 8,983,053 km (0.111 R)
• M17: 9,634,552 km (0.087 R)
• M18: 11,467,126 km (0.107 R)
• M19: 11,913,974 km (0.045 R)
• M20: 13,373,451 km (0.077 R)
• M21: 14,427,368 km (0.117 R)
• M22: 15,862,610 km (0.051 R)
• M23: 16,928,046 km (0.064 R)
• M24: 19,640,405 km (0.086 R)
• M25: 20,215,759 km (0.09 R)
• M26: 21,066,522 km (0.067 R)
• M27: 21,332,956 km (0.12 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444

Radius: 12.6

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 5.32 AU - 5.32 AU

Year: 7802 Days

Day: 6.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 68,757,062 km

• M1: 159,621 km (0.066 R)
• M2: 822,938 km (0.109 R)
• M3: 1,520,214 km (0.056 R)
• M4: 3,138,115 km (0.109 R)
• M5: 3,585,711 km (0.105 R)
• M6: 4,075,944 km (0.058 R)
• M7: 5,396,893 km (0.071 R)
• M8: 5,948,011 km (0.117 R)
• M9: 6,536,529 km (0.04 R)
• M10: 7,091,986 km (0.094 R)
• M11: 8,061,829 km (0.025 R)
• M12: 8,783,639 km (0.104 R)
• M13: 9,635,898 km (0.084 R)
• M14: 10,127,626 km (0.118 R)
• M15: 10,542,461 km (0.113 R)
• M16: 12,368,453 km (0.084 R)
• M17: 12,896,234 km (0.098 R)
• M18: 13,438,975 km (0.062 R)
• M19: 18,346,384 km (0.12 R)
• M20: 19,524,766 km (0.085 R)
• M21: 21,273,565 km (0.077 R)
• M22: 23,603,402 km (0.085 R)
• M23: 24,746,929 km (0.033 R)
• M24: 29,505,637 km (0.109 R)
• M25: 29,975,075 km (0.106 R)
• M26: 32,596,030 km (0.118 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 697.6

Radius: 4.9

Gravity: 29.05 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 7.58 AU - 10.32 AU

Year: 17024 Days

Day: 18.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 68,757,062 km

• M1: 208,390 km (0.098 R)
• M2: 448,345 km (0.117 R)
• M3: 1,046,587 km (0.053 R)
• M4: 1,536,819 km (0.116 R)
• M5: 2,029,295 km (0.057 R)
• M6: 2,312,035 km (0.079 R)
• M7: 2,485,120 km (0.045 R)
• M8: 2,760,978 km (0.118 R)
• M9: 3,082,614 km (0.072 R)
• M10: 3,654,676 km (0.038 R)
• M11: 4,262,642 km (0.03 R)
• M12: 5,992,891 km (0.026 R)
• M13: 7,147,786 km (0.096 R)
• M14: 8,647,954 km (0.085 R)
• M15: 10,580,459 km (0.115 R)
• M16: 11,868,347 km (0.108 R)
• M17: 12,254,758 km (0.043 R)
• M18: 18,494,635 km (0.088 R)
• M19: 18,752,991 km (0.082 R)
• M20: 24,856,434 km (0.051 R)
• M21: 25,808,625 km (0.082 R)
• M22: 27,561,014 km (0.113 R)
• M23: 29,042,183 km (0.074 R)
• M24: 39,482,618 km (0.095 R)
• M25: 52,170,462 km (0.064 R)
• M26: 53,379,512 km (0.1 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 465 - 17,817 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit