🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888.5

Radius: 8

Gravity: 13.88 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.76 AU - 1.22 AU

Year: 680 Days

Day: 13.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 24,651,175 km

• M1: 99,632 km (0.073 R)
• M2: 426,055 km (0.059 R)
• M3: 679,922 km (0.071 R)
• M4: 937,380 km (0.108 R)
• M5: 1,289,085 km (0.105 R)
• M6: 1,627,625 km (0.108 R)
• M7: 2,053,530 km (0.095 R)
• M8: 2,335,073 km (0.074 R)
• M9: 2,654,016 km (0.108 R)
• M10: 2,989,414 km (0.092 R)
• M11: 3,380,164 km (0.076 R)
• M12: 4,091,203 km (0.077 R)
• M13: 4,794,163 km (0.094 R)
• M14: 5,312,071 km (0.067 R)
• M15: 6,168,369 km (0.041 R)
• M16: 6,586,794 km (0.071 R)
• M17: 7,001,779 km (0.097 R)
• M18: 8,402,015 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.7

Radius: 14.7

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.15 AU - 1.67 AU

Year: 1156 Days

Day: 5.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 24,651,175 km

• M1: 182,958 km (0.091 R)
• M2: 730,636 km (0.049 R)
• M3: 1,288,636 km (0.025 R)
• M4: 2,546,156 km (0.116 R)
• M5: 3,619,221 km (0.053 R)
• M6: 4,309,765 km (0.075 R)
• M7: 5,669,759 km (0.113 R)
• M8: 7,690,228 km (0.096 R)
• M9: 8,673,984 km (0.029 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.4

Radius: 10.9

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.83 AU - 1.97 AU

Year: 1808 Days

Day: 15 Hours

Environment

Temp: -206 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 24,651,175 km

• M1: 136,433 km (0.114 R)
• M2: 535,411 km (0.074 R)
• M3: 975,677 km (0.069 R)
• M4: 1,760,617 km (0.057 R)
• M5: 2,303,658 km (0.073 R)
• M6: 3,383,754 km (0.11 R)
• M7: 3,780,637 km (0.084 R)
• M8: 4,151,042 km (0.065 R)
• M9: 4,922,368 km (0.079 R)
• M10: 5,691,152 km (0.085 R)
• M11: 6,331,580 km (0.085 R)
• M12: 7,438,605 km (0.108 R)
• M13: 7,844,763 km (0.051 R)
• M14: 8,893,294 km (0.102 R)
• M15: 9,417,934 km (0.12 R)
• M16: 11,229,265 km (0.064 R)
• M17: 14,299,312 km (0.085 R)
• M18: 15,204,080 km (0.108 R)
• M19: 15,717,799 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 934.6

Radius: 15

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.95 AU - 2.03 AU

Year: 1938 Days

Day: 5.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 24,651,175 km

• M1: 186,549 km (0.117 R)
• M2: 758,312 km (0.095 R)
• M3: 1,255,725 km (0.083 R)
• M4: 1,867,879 km (0.025 R)
• M5: 2,606,743 km (0.069 R)
• M6: 4,654,439 km (0.079 R)
• M7: 5,701,025 km (0.09 R)
• M8: 6,385,436 km (0.06 R)
• M9: 7,181,147 km (0.103 R)
• M10: 8,838,841 km (0.111 R)
• M11: 9,687,509 km (0.092 R)
• M12: 11,158,206 km (0.094 R)
• M13: 12,068,659 km (0.043 R)
• M14: 12,857,787 km (0.095 R)
• M15: 13,373,750 km (0.087 R)
• M16: 14,447,414 km (0.076 R)
• M17: 15,194,506 km (0.117 R)
• M18: 16,664,904 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.3

Radius: 11.4

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2.03 AU - 3.07 AU

Year: 2811 Days

Day: 8.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 164.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 24,651,175 km

• M1: 152,739 km (0.106 R)
• M2: 780,602 km (0.101 R)
• M3: 1,136,495 km (0.069 R)
• M4: 1,530,536 km (0.105 R)
• M5: 2,363,796 km (0.066 R)
• M6: 2,940,795 km (0.066 R)
• M7: 3,550,556 km (0.107 R)
• M8: 3,933,526 km (0.075 R)
• M9: 4,481,653 km (0.073 R)
• M10: 5,710,600 km (0.069 R)
• M11: 7,369,341 km (0.061 R)
• M12: 9,588,625 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535.1

Radius: 10.5

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 2.44 AU - 3.56 AU

Year: 3587 Days

Day: 14.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 24,651,175 km

• M1: 130,599 km (0.045 R)
• M2: 493,673 km (0.12 R)
• M3: 1,016,817 km (0.089 R)
• M4: 1,537,866 km (0.098 R)
• M5: 1,891,964 km (0.057 R)
• M6: 2,626,939 km (0.057 R)
• M7: 3,504,031 km (0.034 R)
• M8: 4,543,138 km (0.102 R)
• M9: 5,803,201 km (0.026 R)
• M10: 6,645,736 km (0.101 R)
• M11: 7,893,532 km (0.096 R)
• M12: 10,363,392 km (0.091 R)
• M13: 11,558,829 km (0.085 R)
• M14: 11,991,765 km (0.041 R)
• M15: 12,480,352 km (0.119 R)
• M16: 16,825,422 km (0.103 R)
• M17: 17,664,666 km (0.112 R)
• M18: 18,708,261 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.8

Radius: 14.7

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 3.45 AU - 4.31 AU

Year: 5275 Days

Day: 13.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 24,651,175 km

• M1: 182,809 km (0.065 R)
• M2: 810,970 km (0.116 R)
• M3: 1,668,016 km (0.103 R)
• M4: 2,281,368 km (0.087 R)
• M5: 2,739,436 km (0.086 R)
• M6: 4,253,666 km (0.12 R)
• M7: 5,494,431 km (0.072 R)
• M8: 7,090,191 km (0.061 R)
• M9: 9,584,586 km (0.077 R)
• M10: 10,341,102 km (0.068 R)
• M11: 10,839,263 km (0.043 R)
• M12: 11,705,285 km (0.075 R)
• M13: 12,804,830 km (0.05 R)
• M14: 14,998,234 km (0.072 R)
• M15: 16,019,090 km (0.089 R)
• M16: 18,500,170 km (0.079 R)
• M17: 19,800,625 km (0.103 R)
• M18: 22,307,885 km (0.06 R)
• M19: 24,504,730 km (0.053 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: 445 - 16,542 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit