🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.53

Radius: 0.78

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.53 AU - 0.81 AU

Year: 349 Days

Day: 19.8 Hours

Environment

Temp: -130 °C

Axial Tilt: 34.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,039,542 km

• M1: 90,507 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.6

Radius: 12.6

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.74 AU - 0.86 AU

Year: 455 Days

Day: 8.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 60,039,542 km

• M1: 156,629 km (0.066 R)
• M2: 552,615 km (0.082 R)
• M3: 990,488 km (0.073 R)
• M4: 1,435,092 km (0.098 R)
• M5: 2,186,822 km (0.096 R)
• M6: 3,353,685 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.6

Radius: 13.3

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.08 AU - 1.6 AU

Year: 986 Days

Day: 7.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,039,542 km

• M1: 165,605 km (0.114 R)
• M2: 689,945 km (0.099 R)
• M3: 1,103,733 km (0.116 R)
• M4: 1,944,324 km (0.045 R)
• M5: 2,366,638 km (0.092 R)
• M6: 2,806,456 km (0.106 R)
• M7: 3,623,111 km (0.12 R)
• M8: 4,212,377 km (0.027 R)
• M9: 4,703,656 km (0.115 R)
• M10: 6,314,377 km (0.095 R)
• M11: 6,754,045 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837

Radius: 14.2

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.7 AU - 1.8 AU

Year: 1472 Days

Day: 6.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,039,542 km

• M1: 176,525 km (0.041 R)
• M2: 647,609 km (0.08 R)
• M3: 1,321,996 km (0.101 R)
• M4: 1,950,906 km (0.114 R)
• M5: 2,435,453 km (0.111 R)
• M6: 3,193,765 km (0.104 R)
• M7: 3,772,260 km (0.105 R)
• M8: 4,269,972 km (0.112 R)
• M9: 5,355,604 km (0.118 R)
• M10: 5,917,194 km (0.107 R)
• M11: 8,302,532 km (0.11 R)
• M12: 8,995,170 km (0.038 R)
• M13: 10,190,308 km (0.061 R)
• M14: 11,163,292 km (0.075 R)
• M15: 12,620,525 km (0.071 R)
• M16: 13,742,659 km (0.096 R)
• M17: 14,285,849 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 934.3

Radius: 10.9

Gravity: 7.86 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 3.57 AU - 3.77 AU

Year: 4470 Days

Day: 7.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 60,039,542 km

• M1: 136,433 km (0.097 R)
• M2: 552,764 km (0.097 R)
• M3: 913,893 km (0.12 R)
• M4: 2,160,792 km (0.08 R)
• M5: 2,561,564 km (0.111 R)
• M6: 3,843,169 km (0.089 R)
• M7: 4,361,975 km (0.066 R)
• M8: 5,686,813 km (0.056 R)
• M9: 6,686,277 km (0.103 R)
• M10: 7,055,784 km (0.063 R)
• M11: 8,285,029 km (0.102 R)
• M12: 8,633,144 km (0.101 R)
• M13: 9,779,213 km (0.117 R)
• M14: 10,212,299 km (0.11 R)
• M15: 11,398,460 km (0.098 R)
• M16: 11,781,281 km (0.101 R)
• M17: 12,123,262 km (0.081 R)
• M18: 12,572,803 km (0.032 R)
• M19: 19,885,447 km (0.12 R)
• M20: 24,466,582 km (0.101 R)
• M21: 25,266,033 km (0.093 R)
• M22: 25,835,851 km (0.09 R)
• M23: 29,977,469 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.5

Radius: 11.6

Gravity: 7.12 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 3.69 AU - 4.09 AU

Year: 4878 Days

Day: 10.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 60,039,542 km

• M1: 144,362 km (0.043 R)
• M2: 573,409 km (0.046 R)
• M3: 950,694 km (0.107 R)
• M4: 1,387,371 km (0.089 R)
• M5: 1,805,646 km (0.069 R)
• M6: 2,423,336 km (0.117 R)
• M7: 2,922,843 km (0.112 R)
• M8: 4,453,678 km (0.092 R)
• M9: 5,322,243 km (0.108 R)
• M10: 6,268,001 km (0.12 R)
• M11: 7,723,888 km (0.099 R)
• M12: 8,178,665 km (0.118 R)
• M13: 10,450,159 km (0.105 R)
• M14: 10,866,041 km (0.108 R)
• M15: 11,780,533 km (0.114 R)
• M16: 12,797,649 km (0.104 R)
• M17: 15,064,805 km (0.089 R)
• M18: 16,079,078 km (0.069 R)
• M19: 17,848,073 km (0.08 R)
• M20: 20,166,242 km (0.046 R)
• M21: 20,812,205 km (0.116 R)
• M22: 23,850,688 km (0.087 R)
• M23: 26,742,115 km (0.06 R)
• M24: 29,491,575 km (0.119 R)
• M25: 30,981,869 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 779.4

Radius: 8.3

Gravity: 11.31 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 3.27 AU - 4.91 AU

Year: 5259 Days

Day: 10 Hours

Environment

Temp: -205 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 60,039,542 km

• M1: 103,223 km (0.069 R)
• M2: 408,552 km (0.118 R)
• M3: 1,025,344 km (0.088 R)
• M4: 1,347,129 km (0.108 R)
• M5: 1,789,789 km (0.065 R)
• M6: 2,106,188 km (0.119 R)
• M7: 2,376,063 km (0.07 R)
• M8: 2,871,681 km (0.104 R)
• M9: 3,266,769 km (0.088 R)
• M10: 3,542,627 km (0.103 R)
• M11: 4,190,236 km (0.069 R)
• M12: 6,249,750 km (0.07 R)
• M13: 7,336,130 km (0.114 R)
• M14: 9,028,680 km (0.064 R)
• M15: 9,878,247 km (0.087 R)
• M16: 10,232,494 km (0.085 R)
• M17: 11,394,870 km (0.106 R)
• M18: 12,032,905 km (0.111 R)
• M19: 12,539,892 km (0.051 R)
• M20: 12,850,756 km (0.059 R)
• M21: 13,273,221 km (0.106 R)
• M22: 14,257,874 km (0.055 R)
• M23: 18,619,549 km (0.109 R)
• M24: 26,077,003 km (0.101 R)
• M25: 27,184,027 km (0.116 R)
• M26: 27,968,519 km (0.113 R)
• M27: 30,319,449 km (0.053 R)
• M28: 32,215,453 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 633.6

Radius: 3.3

Gravity: 58.18 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 7.3 AU - 8.84 AU

Year: 14576 Days

Day: 21.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,039,542 km

• M1: 40,990 km (0.058 R)
• M2: 161,117 km (0.074 R)
• M3: 506,838 km (0.112 R)
• M4: 1,120,039 km (0.108 R)
• M5: 1,628,822 km (0.075 R)
• M6: 3,204,985 km (0.105 R)
• M7: 9,177,231 km (0.073 R)
• M8: 10,132,563 km (0.081 R)
• M9: 14,548,991 km (0.099 R)
• M10: 15,115,070 km (0.118 R)
• M11: 19,495,146 km (0.05 R)
• M12: 22,064,190 km (0.099 R)
• M13: 22,528,841 km (0.105 R)
• M14: 29,398,525 km (0.119 R)
• M15: 30,530,382 km (0.067 R)
• M16: 35,856,964 km (0.048 R)
• M17: 37,673,381 km (0.114 R)
• M18: 38,470,289 km (0.109 R)
• M19: 54,969,588 km (0.084 R)
• M20: 55,139,531 km (0.112 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 524 - 13,407 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit