🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.45 AU - 0.57 AU

Year: 134 Days

Day: 18.6 Hours

Environment

Temp: 223 °C

Axial Tilt: 7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 65,122,683 km

• M1: 20,046 km (0.08 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.46

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.57 AU - 0.65 AU

Year: 175 Days

Day: 41.8 Hours

Environment

Temp: 164 °C

Axial Tilt: 39.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.49

Radius: 1.82

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.68 AU - 1.06 AU

Year: 298 Days

Day: 25.7 Hours

Environment

Temp: 148 °C

Axial Tilt: 3.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.52

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.98 AU - 1.16 AU

Year: 406 Days

Day: 15.2 Hours

Environment

Temp: 30 °C

Axial Tilt: 32.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 65,122,683 km

• M1: 970,591 km (0.114 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.44

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 3.17 AU - 5.27 AU

Year: 3182 Days

Day: 39.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 32.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.5

Radius: 8.9

Gravity: 7.82 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 4.83 AU - 5.89 AU

Year: 4555 Days

Day: 6.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 65,122,683 km

• M1: 113,844 km (0.092 R)
• M2: 438,920 km (0.038 R)
• M3: 791,223 km (0.1 R)
• M4: 1,323,193 km (0.107 R)
• M5: 1,634,207 km (0.082 R)
• M6: 2,344,947 km (0.087 R)
• M7: 2,685,282 km (0.096 R)
• M8: 4,438,419 km (0.095 R)
• M9: 5,279,758 km (0.088 R)
• M10: 5,638,942 km (0.101 R)
• M11: 5,984,962 km (0.062 R)
• M12: 6,624,792 km (0.115 R)
• M13: 7,109,040 km (0.052 R)
• M14: 8,629,254 km (0.029 R)
• M15: 8,934,284 km (0.083 R)
• M16: 10,017,672 km (0.111 R)
• M17: 10,440,435 km (0.117 R)
• M18: 11,503,627 km (0.082 R)
• M19: 11,780,384 km (0.055 R)
• M20: 12,540,191 km (0.108 R)
• M21: 13,131,252 km (0.085 R)
• M22: 14,744,067 km (0.094 R)
• M23: 19,903,398 km (0.119 R)
• M24: 20,504,483 km (0.116 R)
• M25: 23,249,903 km (0.117 R)
• M26: 23,693,012 km (0.111 R)
• M27: 25,914,390 km (0.09 R)
• M28: 26,792,231 km (0.065 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.6

Radius: 10

Gravity: 7.25 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 5.64 AU - 5.9 AU

Year: 5088 Days

Day: 5.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,122,683 km

• M1: 124,316 km (0.08 R)
• M2: 537,056 km (0.061 R)
• M3: 953,088 km (0.094 R)
• M4: 1,852,470 km (0.057 R)
• M5: 2,388,629 km (0.072 R)
• M6: 3,976,461 km (0.119 R)
• M7: 5,745,605 km (0.11 R)
• M8: 9,037,357 km (0.118 R)
• M9: 10,132,713 km (0.065 R)
• M10: 12,943,507 km (0.047 R)
• M11: 13,572,865 km (0.116 R)
• M12: 15,006,761 km (0.114 R)
• M13: 15,701,643 km (0.106 R)
• M14: 24,029,756 km (0.09 R)
• M15: 24,581,473 km (0.096 R)
• M16: 26,704,566 km (0.099 R)
• M17: 28,594,287 km (0.07 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.6

Radius: 9.5

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 8.91 AU - 10.79 AU

Year: 11348 Days

Day: 11.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,122,683 km

• M1: 119,379 km (0.046 R)
• M2: 736,770 km (0.111 R)
• M3: 1,081,144 km (0.109 R)
• M4: 1,380,040 km (0.108 R)
• M5: 1,879,099 km (0.044 R)
• M6: 2,233,945 km (0.113 R)
• M7: 2,571,288 km (0.087 R)
• M8: 3,349,796 km (0.119 R)
• M9: 3,794,251 km (0.056 R)
• M10: 5,628,171 km (0.114 R)
• M11: 6,783,366 km (0.097 R)
• M12: 7,822,323 km (0.054 R)
• M13: 10,056,118 km (0.094 R)
• M14: 11,276,687 km (0.11 R)
• M15: 12,547,970 km (0.093 R)
• M16: 17,895,196 km (0.053 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.7

Radius: 9.1

Gravity: 10.53 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 10.24 AU - 10.5 AU

Year: 12259 Days

Day: 9.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 65,122,683 km

• M1: 113,246 km (0.047 R)
• M2: 663,167 km (0.093 R)
• M3: 1,256,173 km (0.071 R)
• M4: 1,606,831 km (0.118 R)
• M5: 2,004,761 km (0.09 R)
• M6: 2,637,410 km (0.113 R)
• M7: 3,194,812 km (0.027 R)
• M8: 4,057,992 km (0.08 R)
• M9: 4,512,769 km (0.067 R)
• M10: 5,560,553 km (0.06 R)
• M11: 6,239,129 km (0.094 R)
• M12: 6,972,009 km (0.118 R)
• M13: 7,715,510 km (0.095 R)
• M14: 12,062,675 km (0.111 R)
• M15: 15,032,492 km (0.072 R)
• M16: 16,196,363 km (0.061 R)
• M17: 17,419,326 km (0.1 R)
• M18: 19,367,539 km (0.085 R)
• M19: 21,456,823 km (0.118 R)
• M20: 21,818,999 km (0.1 R)
• M21: 24,568,758 km (0.111 R)
• M22: 27,117,756 km (0.091 R)
• M23: 30,517,068 km (0.056 R)
• M24: 31,788,500 km (0.107 R)
• M25: 33,094,939 km (0.08 R)
• M26: 38,413,292 km (0.101 R)
• M27: 40,996,100 km (0.111 R)
• M28: 42,258,855 km (0.093 R)
• M29: 45,306,164 km (0.082 R)
• M30: 46,203,003 km (0.063 R)
• M31: 48,496,937 km (0.05 R)
• M32: 55,662,077 km (0.113 R)
• M33: 56,690,711 km (0.119 R)
• M34: 58,962,954 km (0.084 R)

Planet 10 - Gas Giant

Semi-Major Axis: 11.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 812.5

Radius: 13.1

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 9.2 AU - 14.04 AU

Year: 14541 Days

Day: 10.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 65,122,683 km

• M1: 162,912 km (0.108 R)
• M2: 682,615 km (0.042 R)
• M3: 2,627,088 km (0.083 R)
• M4: 3,957,312 km (0.118 R)
• M5: 5,925,871 km (0.086 R)
• M6: 6,864,298 km (0.067 R)
• M7: 7,619,768 km (0.063 R)
• M8: 11,029,701 km (0.109 R)
• M9: 12,641,618 km (0.054 R)
• M10: 15,644,646 km (0.061 R)
• M11: 17,756,669 km (0.042 R)
• M12: 18,167,614 km (0.063 R)
• M13: 19,094,373 km (0.027 R)
• M14: 20,141,109 km (0.085 R)
• M15: 20,588,407 km (0.087 R)
• M16: 23,807,903 km (0.102 R)
• M17: 24,815,295 km (0.074 R)
• M18: 26,167,360 km (0.118 R)
• M19: 28,678,660 km (0.091 R)
• M20: 29,473,922 km (0.113 R)
• M21: 34,303,091 km (0.099 R)
• M22: 36,242,328 km (0.025 R)
• M23: 38,527,436 km (0.105 R)
• M24: 49,276,342 km (0.11 R)
• M25: 54,289,815 km (0.097 R)
• M26: 59,266,787 km (0.119 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 333 - 18,872 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit