🌌 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: 333.6

Radius: 12.9

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.18 AU - 1.82 AU

Year: 1205 Days

Day: 13.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 41,211,960 km

• M1: 160,519 km (0.091 R)
• M2: 603,627 km (0.059 R)
• M3: 1,123,181 km (0.064 R)
• M4: 1,773,782 km (0.116 R)
• M5: 2,464,326 km (0.111 R)
• M6: 2,916,261 km (0.079 R)
• M7: 4,035,851 km (0.114 R)
• M8: 5,692,947 km (0.064 R)
• M9: 6,729,211 km (0.07 R)
• M10: 8,209,183 km (0.117 R)
• M11: 8,959,267 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.3

Radius: 11.5

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.28 AU - 2 AU

Year: 1378 Days

Day: 11.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 41,211,960 km

• M1: 144,063 km (0.058 R)
• M2: 674,088 km (0.074 R)
• M3: 1,295,218 km (0.11 R)
• M4: 1,767,349 km (0.107 R)
• M5: 3,087,102 km (0.097 R)
• M6: 4,642,620 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 106.5

Radius: 14.7

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.68 AU - 2.08 AU

Year: 1691 Days

Day: 14.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,211,960 km

• M1: 182,809 km (0.084 R)
• M2: 729,140 km (0.07 R)
• M3: 1,374,954 km (0.091 R)
• M4: 2,089,583 km (0.045 R)
• M5: 2,722,980 km (0.085 R)
• M6: 3,549,060 km (0.119 R)
• M7: 4,080,432 km (0.084 R)
• M8: 4,681,067 km (0.103 R)
• M9: 5,870,370 km (0.068 R)
• M10: 6,618,210 km (0.036 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.6

Radius: 8.1

Gravity: 13.79 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.78 AU - 3.26 AU

Year: 3443 Days

Day: 9.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 41,211,960 km

• M1: 100,679 km (0.095 R)
• M2: 568,771 km (0.029 R)
• M3: 912,697 km (0.097 R)
• M4: 1,341,743 km (0.063 R)
• M5: 2,146,580 km (0.043 R)
• M6: 2,508,607 km (0.113 R)
• M7: 2,928,678 km (0.082 R)
• M8: 3,240,589 km (0.119 R)
• M9: 3,824,170 km (0.081 R)
• M10: 4,220,455 km (0.101 R)
• M11: 4,692,736 km (0.092 R)
• M12: 5,252,232 km (0.104 R)
• M13: 6,086,240 km (0.102 R)
• M14: 7,102,309 km (0.07 R)
• M15: 8,739,059 km (0.061 R)
• M16: 9,002,650 km (0.085 R)
• M17: 9,427,658 km (0.099 R)
• M18: 9,906,670 km (0.102 R)
• M19: 10,527,950 km (0.11 R)
• M20: 10,783,613 km (0.104 R)
• M21: 11,620,763 km (0.071 R)
• M22: 12,032,157 km (0.072 R)
• M23: 13,624,327 km (0.059 R)
• M24: 14,184,870 km (0.065 R)
• M25: 18,240,917 km (0.076 R)
• M26: 19,363,948 km (0.096 R)
• M27: 19,748,415 km (0.069 R)
• M28: 20,865,163 km (0.105 R)
• M29: 23,224,172 km (0.066 R)
• M30: 23,658,305 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.4

Radius: 13.2

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 3.11 AU - 5.09 AU

Year: 5446 Days

Day: 5.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 138.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 41,211,960 km

• M1: 164,109 km (0.036 R)
• M2: 598,242 km (0.116 R)
• M3: 1,114,803 km (0.065 R)
• M4: 1,622,688 km (0.102 R)
• M5: 2,081,056 km (0.06 R)
• M6: 3,163,546 km (0.096 R)
• M7: 4,645,313 km (0.078 R)
• M8: 5,347,226 km (0.119 R)
• M9: 7,177,407 km (0.099 R)
• M10: 8,000,345 km (0.092 R)
• M11: 12,087,059 km (0.095 R)
• M12: 12,927,201 km (0.061 R)
• M13: 13,693,890 km (0.1 R)
• M14: 14,259,819 km (0.063 R)
• M15: 15,318,074 km (0.071 R)
• M16: 16,052,300 km (0.106 R)
• M17: 17,067,471 km (0.071 R)
• M18: 20,443,596 km (0.116 R)
• M19: 20,959,709 km (0.096 R)
• M20: 24,571,151 km (0.11 R)
• M21: 29,691,288 km (0.084 R)
• M22: 33,712,479 km (0.103 R)
• M23: 34,433,540 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742

Radius: 10.9

Gravity: 6.25 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 4.55 AU - 6.39 AU

Year: 8392 Days

Day: 7.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 41,211,960 km

• M1: 136,284 km (0.029 R)
• M2: 490,083 km (0.113 R)
• M3: 894,146 km (0.066 R)
• M4: 1,267,992 km (0.115 R)
• M5: 1,821,653 km (0.115 R)
• M6: 2,826,502 km (0.096 R)
• M7: 3,370,440 km (0.071 R)
• M8: 4,413,436 km (0.092 R)
• M9: 5,024,992 km (0.111 R)
• M10: 5,528,240 km (0.106 R)
• M11: 8,436,422 km (0.096 R)
• M12: 10,898,205 km (0.088 R)
• M13: 11,474,755 km (0.053 R)
• M14: 12,860,630 km (0.096 R)
• M15: 13,986,204 km (0.118 R)
• M16: 14,479,428 km (0.1 R)
• M17: 15,631,482 km (0.063 R)
• M18: 16,432,877 km (0.086 R)
• M19: 16,912,787 km (0.118 R)
• M20: 18,482,518 km (0.106 R)
• M21: 20,539,040 km (0.108 R)
• M22: 21,418,974 km (0.041 R)
• M23: 25,011,717 km (0.05 R)
• M24: 26,293,322 km (0.043 R)
• M25: 28,591,743 km (0.058 R)
• M26: 30,401,130 km (0.07 R)
• M27: 32,499,689 km (0.095 R)
• M28: 36,286,160 km (0.109 R)
• M29: 37,100,721 km (0.118 R)
• M30: 37,808,468 km (0.071 R)
• M31: 38,165,708 km (0.07 R)
• M32: 40,980,242 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.6

Radius: 8.7

Gravity: 10.6 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 4.42 AU - 6.6 AU

Year: 8485 Days

Day: 9.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 41,211,960 km

• M1: 108,758 km (0.098 R)
• M2: 469,588 km (0.11 R)
• M3: 1,315,863 km (0.081 R)
• M4: 1,630,766 km (0.089 R)
• M5: 4,143,562 km (0.111 R)
• M6: 9,015,067 km (0.098 R)
• M7: 11,138,758 km (0.119 R)
• M8: 11,676,712 km (0.027 R)
• M9: 12,175,621 km (0.046 R)
• M10: 13,215,925 km (0.092 R)
• M11: 13,757,918 km (0.11 R)
• M12: 16,142,657 km (0.096 R)
• M13: 18,640,194 km (0.119 R)
• M14: 21,714,281 km (0.098 R)
• M15: 22,468,852 km (0.098 R)
• M16: 23,240,777 km (0.11 R)
• M17: 29,655,235 km (0.095 R)
• M18: 30,688,358 km (0.078 R)
• M19: 33,819,591 km (0.108 R)
• M20: 37,039,086 km (0.116 R)
• M21: 44,213,501 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 339.4

Radius: 7

Gravity: 6.93 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 5.99 AU - 7.37 AU

Year: 11326 Days

Day: 17.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 41,211,960 km

• M1: 133,292 km (0.098 R)
• M2: 473,328 km (0.115 R)
• M3: 809,923 km (0.118 R)
• M4: 1,029,084 km (0.077 R)
• M5: 1,460,075 km (0.118 R)
• M6: 4,635,140 km (0.101 R)
• M7: 6,780,972 km (0.091 R)
• M8: 9,014,468 km (0.069 R)
• M9: 10,272,587 km (0.042 R)
• M10: 13,538,308 km (0.094 R)
• M11: 22,928,267 km (0.116 R)
• M12: 28,304,067 km (0.071 R)
• M13: 38,204,005 km (0.067 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 295 - 15,051 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit