🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.75 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933.2

Radius: 13.1

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.23 AU - 1.77 AU

Year: 1205 Days

Day: 6.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 67,823,531 km

• M1: 162,912 km (0.107 R)
• M2: 582,385 km (0.096 R)
• M3: 1,013,376 km (0.103 R)
• M4: 1,587,533 km (0.065 R)
• M5: 2,058,018 km (0.089 R)
• M6: 2,496,489 km (0.079 R)
• M7: 3,566,264 km (0.085 R)
• M8: 4,152,687 km (0.118 R)
• M9: 7,144,196 km (0.1 R)
• M10: 7,589,100 km (0.054 R)
• M11: 8,798,000 km (0.025 R)
• M12: 9,714,736 km (0.118 R)
• M13: 10,163,979 km (0.113 R)
• M14: 12,028,267 km (0.066 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293

Radius: 8.1

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.36 AU - 2.18 AU

Year: 1545 Days

Day: 5.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 67,823,531 km

• M1: 100,679 km (0.12 R)
• M2: 601,383 km (0.097 R)
• M3: 965,953 km (0.105 R)
• M4: 1,364,781 km (0.093 R)
• M5: 1,625,082 km (0.056 R)
• M6: 2,381,000 km (0.101 R)
• M7: 2,915,513 km (0.088 R)
• M8: 3,367,149 km (0.052 R)
• M9: 4,307,222 km (0.09 R)
• M10: 4,746,890 km (0.108 R)
• M11: 5,512,382 km (0.1 R)
• M12: 6,009,795 km (0.117 R)
• M13: 6,811,490 km (0.109 R)
• M14: 7,860,321 km (0.085 R)
• M15: 8,118,826 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.9

Radius: 9

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.15 AU - 2.21 AU

Year: 2112 Days

Day: 7.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 67,823,531 km

• M1: 111,899 km (0.034 R)
• M2: 405,709 km (0.076 R)
• M3: 764,296 km (0.104 R)
• M4: 1,071,719 km (0.095 R)
• M5: 1,561,503 km (0.092 R)
• M6: 2,337,916 km (0.102 R)
• M7: 2,961,140 km (0.111 R)
• M8: 4,346,267 km (0.098 R)
• M9: 4,953,185 km (0.114 R)
• M10: 5,660,035 km (0.073 R)
• M11: 6,120,198 km (0.103 R)
• M12: 6,432,708 km (0.082 R)
• M13: 6,806,254 km (0.035 R)
• M14: 7,434,266 km (0.102 R)
• M15: 8,360,277 km (0.103 R)
• M16: 9,019,106 km (0.04 R)
• M17: 10,038,466 km (0.049 R)
• M18: 11,856,230 km (0.085 R)
• M19: 12,726,291 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.5

Radius: 14.2

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 3.04 AU - 4.56 AU

Year: 4859 Days

Day: 5.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 67,823,531 km

• M1: 176,974 km (0.059 R)
• M2: 657,632 km (0.062 R)
• M3: 1,642,585 km (0.078 R)
• M4: 4,909,802 km (0.068 R)
• M5: 5,409,758 km (0.102 R)
• M6: 5,898,046 km (0.049 R)
• M7: 8,211,427 km (0.115 R)
• M8: 11,217,896 km (0.118 R)
• M9: 11,831,247 km (0.103 R)
• M10: 13,085,625 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.1

Radius: 14.1

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 4.27 AU - 6.55 AU

Year: 8255 Days

Day: 7.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 67,823,531 km

• M1: 175,777 km (0.088 R)
• M2: 683,213 km (0.106 R)
• M3: 2,236,189 km (0.048 R)
• M4: 2,843,856 km (0.115 R)
• M5: 4,213,125 km (0.099 R)
• M6: 4,944,808 km (0.043 R)
• M7: 6,769,004 km (0.101 R)
• M8: 9,401,628 km (0.118 R)
• M9: 11,858,025 km (0.102 R)
• M10: 12,385,806 km (0.073 R)
• M11: 14,122,488 km (0.09 R)
• M12: 14,836,518 km (0.074 R)
• M13: 16,336,985 km (0.077 R)
• M14: 17,190,890 km (0.062 R)
• M15: 19,275,087 km (0.108 R)
• M16: 23,196,945 km (0.107 R)
• M17: 24,529,563 km (0.088 R)
• M18: 25,042,235 km (0.097 R)
• M19: 29,023,632 km (0.088 R)
• M20: 31,164,528 km (0.111 R)
• M21: 34,144,966 km (0.108 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 45

Radius: 4.6

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 6.11 AU - 8.73 AU

Year: 13259 Days

Day: 18.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 67,823,531 km

• M1: 57,446 km (0.106 R)
• M2: 359,334 km (0.076 R)
• M3: 631,004 km (0.119 R)
• M4: 1,038,508 km (0.107 R)
• M5: 1,449,155 km (0.045 R)
• M6: 1,615,507 km (0.113 R)
• M7: 3,744,285 km (0.042 R)
• M8: 4,484,047 km (0.089 R)
• M9: 6,019,370 km (0.095 R)
• M10: 6,190,061 km (0.092 R)
• M11: 9,115,597 km (0.102 R)
• M12: 9,416,737 km (0.057 R)
• M13: 10,359,952 km (0.109 R)
• M14: 11,934,769 km (0.085 R)
• M15: 13,371,506 km (0.099 R)
• M16: 14,713,549 km (0.114 R)
• M17: 15,549,951 km (0.1 R)
• M18: 18,248,547 km (0.065 R)
• M19: 22,995,137 km (0.06 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 501.8

Radius: 6.3

Gravity: 12.64 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 8.39 AU - 10.91 AU

Year: 19665 Days

Day: 15.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 67,823,531 km

• M1: 84,523 km (0.115 R)
• M2: 330,611 km (0.093 R)
• M3: 1,003,203 km (0.061 R)
• M4: 1,426,715 km (0.111 R)
• M5: 1,630,168 km (0.101 R)
• M6: 1,907,522 km (0.102 R)
• M7: 2,116,211 km (0.078 R)
• M8: 2,535,086 km (0.096 R)
• M9: 4,004,885 km (0.044 R)
• M10: 5,352,612 km (0.1 R)
• M11: 5,968,057 km (0.062 R)
• M12: 6,169,715 km (0.09 R)
• M13: 6,629,430 km (0.096 R)
• M14: 7,022,423 km (0.101 R)
• M15: 10,278,720 km (0.115 R)
• M16: 11,226,871 km (0.113 R)
• M17: 11,911,880 km (0.087 R)
• M18: 12,957,270 km (0.116 R)
• M19: 14,205,066 km (0.106 R)
• M20: 17,424,412 km (0.112 R)
• M21: 20,820,732 km (0.107 R)
• M22: 21,757,664 km (0.104 R)
• M23: 23,414,610 km (0.095 R)
• M24: 28,430,327 km (0.031 R)
• M25: 28,887,648 km (0.09 R)
• M26: 32,724,085 km (0.028 R)
• M27: 33,733,721 km (0.092 R)
• M28: 34,634,001 km (0.07 R)
• M29: 37,294,450 km (0.055 R)
• M30: 40,807,606 km (0.1 R)
• M31: 55,988,050 km (0.082 R)
• M32: 59,827,779 km (0.092 R)
• M33: 67,620,482 km (0.065 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 346 - 13,911 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit