🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.38

Radius: 1.41

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.54 AU - 0.78 AU

Year: 196 Days

Day: 18.3 Hours

Environment

Temp: 133 °C

Axial Tilt: 39.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.91

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.89 AU - 1.15 AU

Year: 376 Days

Day: 46.6 Hours

Environment

Temp: 29 °C

Axial Tilt: 31.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.75 AU - 1.91 AU

Year: 904 Days

Day: 37.9 Hours

Environment

Temp: -58 °C

Axial Tilt: 29.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 5.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.8

Radius: 8.5

Gravity: 10.46 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 4.7 AU - 6.06 AU

Year: 4558 Days

Day: 5.9 Hours

Environment

Temp: -136 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 80,696,556 km

• M1: 105,915 km (0.049 R)
• M2: 380,278 km (0.081 R)
• M3: 655,837 km (0.095 R)
• M4: 1,156,092 km (0.114 R)
• M5: 1,659,489 km (0.075 R)
• M6: 2,004,611 km (0.101 R)
• M7: 2,429,619 km (0.057 R)
• M8: 3,419,658 km (0.097 R)
• M9: 3,715,712 km (0.081 R)
• M10: 4,359,432 km (0.072 R)
• M11: 4,631,999 km (0.057 R)
• M12: 5,779,115 km (0.114 R)
• M13: 6,707,520 km (0.05 R)
• M14: 7,519,238 km (0.093 R)
• M15: 8,169,839 km (0.065 R)
• M16: 8,740,256 km (0.055 R)
• M17: 9,255,770 km (0.078 R)
• M18: 11,664,146 km (0.087 R)
• M19: 13,869,967 km (0.045 R)
• M20: 14,792,088 km (0.103 R)
• M21: 15,127,187 km (0.076 R)
• M22: 16,697,965 km (0.097 R)
• M23: 18,119,444 km (0.099 R)
• M24: 18,438,835 km (0.057 R)
• M25: 20,990,376 km (0.071 R)
• M26: 21,627,364 km (0.104 R)
• M27: 22,350,371 km (0.103 R)
• M28: 23,616,268 km (0.085 R)
• M29: 24,074,187 km (0.082 R)
• M30: 24,460,449 km (0.102 R)
• M31: 25,723,952 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.6

Radius: 13.7

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 6.81 AU - 7.75 AU

Year: 7174 Days

Day: 7.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 80,696,556 km

• M1: 171,140 km (0.068 R)
• M2: 607,667 km (0.074 R)
• M3: 1,230,442 km (0.101 R)
• M4: 1,921,435 km (0.103 R)
• M5: 2,366,190 km (0.08 R)
• M6: 2,861,658 km (0.052 R)
• M7: 3,579,279 km (0.109 R)
• M8: 4,065,472 km (0.073 R)
• M9: 4,837,397 km (0.08 R)
• M10: 6,079,957 km (0.066 R)
• M11: 7,452,068 km (0.084 R)
• M12: 8,250,622 km (0.054 R)
• M13: 9,021,649 km (0.105 R)
• M14: 13,019,353 km (0.09 R)
• M15: 13,896,296 km (0.048 R)
• M16: 17,737,072 km (0.114 R)
• M17: 18,952,853 km (0.055 R)
• M18: 20,079,475 km (0.106 R)
• M19: 20,659,316 km (0.092 R)
• M20: 21,250,228 km (0.07 R)
• M21: 21,928,654 km (0.102 R)
• M22: 24,050,550 km (0.059 R)
• M23: 27,707,620 km (0.026 R)
• M24: 28,608,498 km (0.12 R)
• M25: 29,902,221 km (0.118 R)
• M26: 32,013,795 km (0.101 R)
• M27: 34,428,753 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 276.6

Radius: 11

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 7.35 AU - 11.63 AU

Year: 10678 Days

Day: 7.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 80,696,556 km

• M1: 150,047 km (0.075 R)
• M2: 603,179 km (0.083 R)
• M3: 1,152,502 km (0.105 R)
• M4: 1,989,502 km (0.111 R)
• M5: 4,164,206 km (0.069 R)
• M6: 4,718,616 km (0.112 R)
• M7: 6,543,560 km (0.089 R)
• M8: 7,710,274 km (0.117 R)
• M9: 9,668,211 km (0.086 R)
• M10: 10,451,805 km (0.07 R)
• M11: 12,409,443 km (0.096 R)
• M12: 14,423,180 km (0.06 R)
• M13: 18,735,338 km (0.114 R)
• M14: 19,516,987 km (0.092 R)
• M15: 20,099,222 km (0.103 R)
• M16: 20,843,023 km (0.114 R)
• M17: 23,347,141 km (0.098 R)
• M18: 26,132,953 km (0.103 R)
• M19: 26,484,957 km (0.07 R)
• M20: 27,198,688 km (0.083 R)
• M21: 28,385,747 km (0.081 R)
• M22: 30,085,927 km (0.108 R)
• M23: 32,457,053 km (0.101 R)
• M24: 33,584,423 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.6

Radius: 14

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 9.65 AU - 11.33 AU

Year: 12409 Days

Day: 9.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 80,696,556 km

• M1: 174,581 km (0.105 R)
• M2: 668,553 km (0.079 R)
• M3: 1,180,626 km (0.036 R)
• M4: 1,944,024 km (0.116 R)
• M5: 2,389,228 km (0.04 R)
• M6: 2,996,296 km (0.119 R)
• M7: 4,188,740 km (0.11 R)
• M8: 5,677,239 km (0.112 R)
• M9: 6,808,498 km (0.1 R)
• M10: 7,406,142 km (0.096 R)
• M11: 8,560,589 km (0.102 R)
• M12: 9,105,125 km (0.118 R)
• M13: 9,620,340 km (0.107 R)
• M14: 10,100,549 km (0.093 R)
• M15: 11,109,287 km (0.109 R)
• M16: 11,638,266 km (0.114 R)
• M17: 12,810,664 km (0.097 R)
• M18: 14,540,614 km (0.077 R)
• M19: 19,203,729 km (0.089 R)
• M20: 21,016,257 km (0.118 R)
• M21: 23,799,974 km (0.12 R)
• M22: 38,731,487 km (0.076 R)
• M23: 43,181,575 km (0.119 R)
• M24: 44,052,384 km (0.083 R)
• M25: 45,829,008 km (0.075 R)
• M26: 47,653,055 km (0.092 R)
• M27: 60,163,626 km (0.096 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 615.3

Radius: 6.5

Gravity: 14.56 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 12.08 AU - 19.62 AU

Year: 23048 Days

Day: 20.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 80,696,556 km

• M1: 80,783 km (0.07 R)
• M2: 483,949 km (0.086 R)
• M3: 986,897 km (0.082 R)
• M4: 1,223,411 km (0.104 R)
• M5: 1,514,080 km (0.083 R)
• M6: 2,129,526 km (0.087 R)
• M7: 3,249,415 km (0.071 R)
• M8: 3,873,538 km (0.117 R)
• M9: 4,469,536 km (0.045 R)
• M10: 5,556,065 km (0.032 R)
• M11: 6,139,197 km (0.07 R)
• M12: 6,625,390 km (0.111 R)
• M13: 7,525,371 km (0.073 R)
• M14: 7,927,640 km (0.094 R)
• M15: 11,350,738 km (0.099 R)
• M16: 12,014,803 km (0.084 R)
• M17: 12,916,430 km (0.108 R)
• M18: 14,162,580 km (0.053 R)
• M19: 15,247,314 km (0.099 R)
• M20: 16,055,292 km (0.102 R)
• M21: 17,320,292 km (0.108 R)
• M22: 18,021,457 km (0.042 R)
• M23: 20,527,969 km (0.077 R)
• M24: 22,734,837 km (0.065 R)
• M25: 24,218,698 km (0.09 R)
• M26: 24,984,340 km (0.075 R)
• M27: 26,563,795 km (0.106 R)
• M28: 33,280,889 km (0.071 R)
• M29: 34,913,301 km (0.063 R)
• M30: 39,978,685 km (0.061 R)
• M31: 42,291,767 km (0.117 R)
• M32: 55,959,926 km (0.12 R)
• M33: 62,040,032 km (0.093 R)
• M34: 64,924,728 km (0.085 R)
• M35: 65,554,236 km (0.036 R)
• M36: 70,295,890 km (0.119 R)
• M37: 70,516,696 km (0.075 R)
• M38: 77,829,040 km (0.119 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 184 - 12,303 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit