🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.8

Radius: 10

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.54 AU - 0.56 AU

Year: 282 Days

Day: 5.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,517,428 km

• M1: 124,316 km (0.059 R)
• M2: 441,314 km (0.12 R)
• M3: 1,058,106 km (0.08 R)
• M4: 1,575,565 km (0.062 R)
• M5: 2,028,846 km (0.039 R)
• M6: 2,397,455 km (0.052 R)
• M7: 2,786,560 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589.8

Radius: 9.8

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.49 AU - 0.75 AU

Year: 337 Days

Day: 13.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,517,428 km

• M1: 121,922 km (0.107 R)
• M2: 495,618 km (0.109 R)
• M3: 1,389,016 km (0.083 R)
• M4: 1,947,465 km (0.051 R)
• M5: 3,216,653 km (0.11 R)
• M6: 4,046,323 km (0.087 R)
• M7: 4,458,166 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 62.8

Radius: 14.3

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.92 AU - 1.34 AU

Year: 829 Days

Day: 9 Hours

Environment

Temp: -184 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,517,428 km

• M1: 178,021 km (0.088 R)
• M2: 759,957 km (0.115 R)
• M3: 1,538,016 km (0.118 R)
• M4: 2,267,455 km (0.043 R)
• M5: 2,875,570 km (0.109 R)
• M6: 3,381,361 km (0.086 R)
• M7: 3,912,583 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.4

Radius: 11.6

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.94 AU - 1.32 AU

Year: 829 Days

Day: 7.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,517,428 km

• M1: 146,456 km (0.053 R)
• M2: 723,306 km (0.084 R)
• M3: 1,598,304 km (0.092 R)
• M4: 2,076,119 km (0.103 R)
• M5: 2,832,187 km (0.108 R)
• M6: 3,226,078 km (0.098 R)
• M7: 3,777,047 km (0.089 R)
• M8: 4,330,260 km (0.057 R)
• M9: 4,969,641 km (0.117 R)
• M10: 6,674,309 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.2

Radius: 12.7

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.12 AU - 1.28 AU

Year: 907 Days

Day: 9.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,517,428 km

• M1: 158,574 km (0.067 R)
• M2: 731,833 km (0.044 R)
• M3: 1,541,905 km (0.097 R)
• M4: 2,165,280 km (0.118 R)
• M5: 2,802,567 km (0.092 R)
• M6: 3,363,858 km (0.04 R)
• M7: 4,321,733 km (0.056 R)
• M8: 5,130,010 km (0.111 R)
• M9: 5,750,093 km (0.114 R)
• M10: 8,322,578 km (0.074 R)
• M11: 9,717,130 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.9

Radius: 9.6

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.39 AU - 1.47 AU

Year: 1180 Days

Day: 5.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 45,517,428 km

• M1: 120,875 km (0.119 R)
• M2: 481,406 km (0.079 R)
• M3: 806,183 km (0.1 R)
• M4: 1,261,858 km (0.111 R)
• M5: 1,651,112 km (0.117 R)
• M6: 2,079,410 km (0.116 R)
• M7: 2,937,354 km (0.086 R)
• M8: 3,284,870 km (0.07 R)
• M9: 4,600,135 km (0.078 R)
• M10: 5,164,866 km (0.119 R)
• M11: 5,693,845 km (0.119 R)
• M12: 6,768,705 km (0.068 R)
• M13: 8,734,720 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.9

Radius: 14.3

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.3 AU - 1.67 AU

Year: 1243 Days

Day: 10.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,517,428 km

• M1: 178,021 km (0.055 R)
• M2: 692,339 km (0.086 R)
• M3: 1,300,753 km (0.115 R)
• M4: 1,770,341 km (0.045 R)
• M5: 2,407,927 km (0.052 R)
• M6: 2,871,531 km (0.109 R)
• M7: 3,463,340 km (0.043 R)
• M8: 3,997,853 km (0.071 R)
• M9: 4,504,541 km (0.118 R)
• M10: 4,965,303 km (0.111 R)
• M11: 6,103,892 km (0.106 R)
• M12: 6,627,186 km (0.045 R)
• M13: 7,180,249 km (0.07 R)
• M14: 8,006,478 km (0.115 R)
• M15: 8,609,058 km (0.086 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.6

Radius: 12.4

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.97 AU - 2.55 AU

Year: 2345 Days

Day: 7.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 136.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 45,517,428 km

• M1: 154,684 km (0.064 R)
• M2: 901,327 km (0.092 R)
• M3: 1,366,876 km (0.118 R)
• M4: 2,562,163 km (0.078 R)
• M5: 3,330,497 km (0.049 R)
• M6: 5,303,095 km (0.077 R)
• M7: 5,776,423 km (0.118 R)
• M8: 7,395,820 km (0.114 R)
• M9: 8,733,972 km (0.063 R)
• M10: 10,999,632 km (0.072 R)
• M11: 11,697,207 km (0.05 R)
• M12: 12,580,732 km (0.051 R)
• M13: 14,698,589 km (0.104 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677

Radius: 13.8

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 3.68 AU - 4.34 AU

Year: 5543 Days

Day: 13.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 45,517,428 km

• M1: 171,738 km (0.064 R)
• M2: 715,527 km (0.099 R)
• M3: 1,231,490 km (0.101 R)
• M4: 2,284,659 km (0.069 R)
• M5: 2,791,197 km (0.079 R)
• M6: 4,201,307 km (0.054 R)
• M7: 5,106,374 km (0.063 R)
• M8: 5,679,633 km (0.07 R)
• M9: 6,424,032 km (0.111 R)
• M10: 6,887,785 km (0.039 R)
• M11: 7,338,524 km (0.094 R)
• M12: 9,384,574 km (0.11 R)
• M13: 10,975,846 km (0.082 R)
• M14: 12,033,054 km (0.078 R)
• M15: 12,740,503 km (0.12 R)
• M16: 17,075,999 km (0.085 R)
• M17: 17,647,163 km (0.111 R)
• M18: 19,232,901 km (0.097 R)
• M19: 19,851,488 km (0.025 R)
• M20: 20,768,373 km (0.088 R)
• M21: 22,233,684 km (0.093 R)
• M22: 26,958,284 km (0.108 R)
• M23: 27,820,417 km (0.037 R)
• M24: 30,240,162 km (0.107 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 312.6

Radius: 3.5

Gravity: 25.52 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 7.03 AU - 7.63 AU

Year: 13698 Days

Day: 23.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 45,517,428 km

• M1: 45,179 km (0.086 R)
• M2: 226,342 km (0.086 R)
• M3: 788,680 km (0.117 R)
• M4: 1,010,085 km (0.116 R)
• M5: 1,894,657 km (0.111 R)
• M6: 2,975,801 km (0.081 R)
• M7: 5,969,853 km (0.113 R)
• M8: 7,609,296 km (0.103 R)
• M9: 8,072,301 km (0.03 R)
• M10: 8,598,586 km (0.048 R)
• M11: 11,908,439 km (0.111 R)
• M12: 13,598,297 km (0.108 R)
• M13: 16,945,998 km (0.114 R)
• M14: 24,751,267 km (0.102 R)
• M15: 25,300,291 km (0.112 R)
• M16: 26,422,724 km (0.094 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 325 - 11,767 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit