🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410.3

Radius: 13.5

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.47 AU - 0.55 AU

Year: 247 Days

Day: 11.2 Hours

Environment

Temp: -138 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 39,572,840 km

• M1: 167,849 km (0.115 R)
• M2: 600,187 km (0.104 R)
• M3: 1,034,320 km (0.083 R)
• M4: 2,079,111 km (0.114 R)
• M5: 2,567,698 km (0.089 R)
• M6: 3,096,826 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.4

Radius: 10.6

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.51 AU - 0.77 AU

Year: 347 Days

Day: 10.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 39,572,840 km

• M1: 132,095 km (0.059 R)
• M2: 482,004 km (0.066 R)
• M3: 861,833 km (0.079 R)
• M4: 1,812,677 km (0.101 R)
• M5: 2,687,376 km (0.085 R)
• M6: 3,155,468 km (0.109 R)
• M7: 3,515,101 km (0.087 R)
• M8: 3,913,480 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 752.8

Radius: 14.3

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.76 AU - 1.2 AU

Year: 658 Days

Day: 13.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,572,840 km

• M1: 181,612 km (0.049 R)
• M2: 896,241 km (0.115 R)
• M3: 1,454,091 km (0.101 R)
• M4: 1,967,362 km (0.119 R)
• M5: 2,836,076 km (0.057 R)
• M6: 3,437,909 km (0.047 R)
• M7: 4,050,362 km (0.103 R)
• M8: 4,556,901 km (0.048 R)
• M9: 5,088,422 km (0.085 R)
• M10: 5,661,382 km (0.102 R)
• M11: 7,001,928 km (0.05 R)
• M12: 7,735,556 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.1

Radius: 14.1

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.07 AU - 1.17 AU

Year: 804 Days

Day: 5.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,572,840 km

• M1: 175,329 km (0.07 R)
• M2: 906,114 km (0.111 R)
• M3: 1,376,600 km (0.104 R)
• M4: 2,089,134 km (0.05 R)
• M5: 2,953,960 km (0.096 R)
• M6: 3,503,881 km (0.11 R)
• M7: 4,152,538 km (0.103 R)
• M8: 4,645,163 km (0.099 R)
• M9: 5,616,502 km (0.112 R)
• M10: 6,761,674 km (0.091 R)
• M11: 7,937,364 km (0.096 R)
• M12: 8,499,253 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.2

Radius: 10.3

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.1 AU - 1.68 AU

Year: 1112 Days

Day: 12.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,572,840 km

• M1: 128,804 km (0.104 R)
• M2: 787,633 km (0.117 R)
• M3: 1,216,829 km (0.054 R)
• M4: 1,660,088 km (0.098 R)
• M5: 2,337,766 km (0.062 R)
• M6: 2,966,376 km (0.083 R)
• M7: 4,076,542 km (0.117 R)
• M8: 5,404,821 km (0.111 R)
• M9: 6,438,094 km (0.061 R)
• M10: 6,909,477 km (0.053 R)
• M11: 7,379,663 km (0.085 R)
• M12: 7,746,327 km (0.111 R)
• M13: 8,228,032 km (0.106 R)
• M14: 8,649,300 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70

Radius: 10.2

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.99 AU - 2.93 AU

Year: 2617 Days

Day: 7.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,572,840 km

• M1: 129,402 km (0.043 R)
• M2: 806,333 km (0.06 R)
• M3: 1,450,202 km (0.056 R)
• M4: 2,099,457 km (0.091 R)
• M5: 2,430,965 km (0.088 R)
• M6: 2,858,367 km (0.118 R)
• M7: 3,322,120 km (0.106 R)
• M8: 5,817,861 km (0.119 R)
• M9: 7,190,422 km (0.082 R)
• M10: 8,126,306 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.9

Radius: 9.9

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 3.64 AU - 5.82 AU

Year: 6977 Days

Day: 10.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 39,572,840 km

• M1: 125,064 km (0.055 R)
• M2: 1,065,586 km (0.059 R)
• M3: 1,544,897 km (0.092 R)
• M4: 2,881,255 km (0.081 R)
• M5: 3,504,629 km (0.085 R)
• M6: 5,800,657 km (0.091 R)
• M7: 8,445,997 km (0.108 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 786.8

Radius: 13.7

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 3.88 AU - 5.6 AU

Year: 6999 Days

Day: 9.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 39,572,840 km

• M1: 170,392 km (0.06 R)
• M2: 662,419 km (0.106 R)
• M3: 1,223,711 km (0.048 R)
• M4: 2,118,007 km (0.104 R)
• M5: 3,027,562 km (0.104 R)
• M6: 3,481,292 km (0.101 R)
• M7: 4,209,235 km (0.054 R)
• M8: 5,872,016 km (0.081 R)
• M9: 8,470,231 km (0.071 R)
• M10: 12,288,418 km (0.088 R)
• M11: 13,002,149 km (0.075 R)
• M12: 15,310,444 km (0.092 R)
• M13: 17,060,740 km (0.114 R)
• M14: 21,737,019 km (0.095 R)
• M15: 22,295,468 km (0.1 R)
• M16: 23,775,440 km (0.041 R)
• M17: 28,990,571 km (0.046 R)
• M18: 30,059,149 km (0.078 R)
• M19: 32,585,109 km (0.09 R)
• M20: 33,316,942 km (0.095 R)
• M21: 34,489,340 km (0.092 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: 257 - 19,636 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit