🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.3

Radius: 14

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.5 AU - 0.72 AU

Year: 329 Days

Day: 10.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 37,543,895 km

• M1: 174,581 km (0.059 R)
• M2: 634,744 km (0.05 R)
• M3: 1,275,621 km (0.099 R)
• M4: 2,122,794 km (0.072 R)
• M5: 2,640,552 km (0.065 R)
• M6: 3,090,842 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.7

Radius: 13.3

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.61 AU - 0.79 AU

Year: 404 Days

Day: 11.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,543,895 km

• M1: 165,455 km (0.048 R)
• M2: 660,923 km (0.055 R)
• M3: 1,198,578 km (0.12 R)
• M4: 1,626,278 km (0.069 R)
• M5: 2,208,364 km (0.066 R)
• M6: 2,630,230 km (0.029 R)
• M7: 3,259,289 km (0.089 R)
• M8: 3,761,638 km (0.102 R)
• M9: 4,208,487 km (0.097 R)
• M10: 4,777,408 km (0.11 R)
• M11: 5,241,311 km (0.055 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.1

Radius: 13.7

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.69 AU - 1.93 AU

Year: 1681 Days

Day: 8.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 37,543,895 km

• M1: 170,542 km (0.099 R)
• M2: 823,087 km (0.106 R)
• M3: 1,629,270 km (0.1 R)
• M4: 2,117,857 km (0.111 R)
• M5: 3,192,119 km (0.076 R)
• M6: 3,685,643 km (0.073 R)
• M7: 4,117,083 km (0.088 R)
• M8: 4,602,678 km (0.106 R)
• M9: 5,170,102 km (0.091 R)
• M10: 5,643,430 km (0.115 R)
• M11: 6,446,172 km (0.086 R)
• M12: 7,076,877 km (0.089 R)
• M13: 8,099,827 km (0.09 R)
• M14: 9,186,805 km (0.06 R)
• M15: 10,021,113 km (0.085 R)
• M16: 11,125,294 km (0.102 R)
• M17: 11,649,785 km (0.103 R)
• M18: 12,112,491 km (0.082 R)
• M19: 12,667,798 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.3

Radius: 12.8

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.77 AU - 2.83 AU

Year: 2408 Days

Day: 14.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,543,895 km

• M1: 159,172 km (0.077 R)
• M2: 595,250 km (0.11 R)
• M3: 1,104,631 km (0.107 R)
• M4: 3,447,483 km (0.042 R)
• M5: 3,875,034 km (0.115 R)
• M6: 6,007,252 km (0.088 R)
• M7: 6,743,124 km (0.081 R)
• M8: 7,207,027 km (0.056 R)
• M9: 7,630,389 km (0.051 R)
• M10: 10,880,104 km (0.089 R)
• M11: 14,571,581 km (0.089 R)
• M12: 18,741,322 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87.9

Radius: 8.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 2.05 AU - 2.85 AU

Year: 2647 Days

Day: 10 Hours

Environment

Temp: -198 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,543,895 km

• M1: 105,766 km (0.068 R)
• M2: 473,178 km (0.099 R)
• M3: 934,388 km (0.112 R)
• M4: 1,273,078 km (0.115 R)
• M5: 1,632,861 km (0.056 R)
• M6: 2,080,009 km (0.105 R)
• M7: 2,513,244 km (0.067 R)
• M8: 4,839,641 km (0.119 R)
• M9: 5,764,754 km (0.077 R)
• M10: 7,860,171 km (0.102 R)
• M11: 8,560,738 km (0.097 R)
• M12: 9,358,843 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.5

Radius: 10.5

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 3.42 AU - 3.98 AU

Year: 4913 Days

Day: 7.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,543,895 km

• M1: 139,724 km (0.08 R)
• M2: 684,261 km (0.101 R)
• M3: 1,019,360 km (0.057 R)
• M4: 2,540,471 km (0.096 R)
• M5: 3,830,902 km (0.116 R)
• M6: 7,577,581 km (0.055 R)
• M7: 13,608,619 km (0.096 R)
• M8: 15,188,522 km (0.059 R)
• M9: 16,422,555 km (0.108 R)
• M10: 18,521,712 km (0.11 R)
• M11: 19,668,081 km (0.108 R)
• M12: 22,031,877 km (0.027 R)
• M13: 22,384,329 km (0.115 R)
• M14: 25,110,900 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.7

Radius: 11

Gravity: 7.07 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 2.98 AU - 4.44 AU

Year: 4933 Days

Day: 14.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 143.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 37,543,895 km

• M1: 137,480 km (0.064 R)
• M2: 487,839 km (0.08 R)
• M3: 895,343 km (0.082 R)
• M4: 1,560,455 km (0.12 R)
• M5: 2,175,303 km (0.083 R)
• M6: 2,652,819 km (0.119 R)
• M7: 3,384,203 km (0.091 R)
• M8: 3,843,319 km (0.091 R)
• M9: 4,914,290 km (0.03 R)
• M10: 6,398,002 km (0.085 R)
• M11: 8,276,203 km (0.081 R)
• M12: 9,831,722 km (0.094 R)
• M13: 10,182,678 km (0.106 R)
• M14: 10,542,012 km (0.12 R)
• M15: 11,817,633 km (0.053 R)
• M16: 13,299,400 km (0.104 R)
• M17: 16,139,665 km (0.114 R)
• M18: 18,485,809 km (0.103 R)
• M19: 19,293,189 km (0.118 R)
• M20: 22,380,589 km (0.086 R)
• M21: 23,375,266 km (0.07 R)
• M22: 28,884,806 km (0.111 R)
• M23: 30,155,640 km (0.079 R)
• M24: 30,525,446 km (0.078 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.1

Radius: 10.5

Gravity: 6.52 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 3.96 AU - 5.2 AU

Year: 6766 Days

Day: 6.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 37,543,895 km

• M1: 130,599 km (0.091 R)
• M2: 523,593 km (0.097 R)
• M3: 908,657 km (0.104 R)
• M4: 1,832,873 km (0.119 R)
• M5: 2,843,556 km (0.08 R)
• M6: 5,575,363 km (0.104 R)
• M7: 6,526,506 km (0.079 R)
• M8: 7,206,129 km (0.11 R)
• M9: 7,892,933 km (0.109 R)
• M10: 8,961,212 km (0.081 R)
• M11: 9,801,054 km (0.055 R)
• M12: 12,798,995 km (0.119 R)
• M13: 14,388,024 km (0.068 R)
• M14: 15,788,410 km (0.071 R)
• M15: 20,910,342 km (0.105 R)
• M16: 21,600,437 km (0.103 R)
• M17: 22,864,539 km (0.118 R)
• M18: 27,223,521 km (0.115 R)
• M19: 28,046,310 km (0.089 R)
• M20: 28,885,554 km (0.077 R)
• M21: 36,763,677 km (0.099 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 185 - 18,398 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit