🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.93

Radius: 0.97

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.55 AU - 0.75 AU

Year: 333 Days

Day: 46 Hours

Environment

Temp: -140 °C

Axial Tilt: 4.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,754,297 km

• M1: 22,888 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 578

Radius: 13.5

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.68 AU - 0.7 AU

Year: 364 Days

Day: 12.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,754,297 km

• M1: 167,849 km (0.1 R)
• M2: 606,320 km (0.05 R)
• M3: 1,044,792 km (0.103 R)
• M4: 1,853,667 km (0.096 R)
• M5: 2,442,036 km (0.075 R)
• M6: 2,928,678 km (0.079 R)
• M7: 3,525,124 km (0.101 R)
• M8: 4,331,756 km (0.082 R)
• M9: 4,793,565 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.4

Radius: 11.2

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.8 AU - 0.98 AU

Year: 534 Days

Day: 9.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 45,754,297 km

• M1: 139,575 km (0.1 R)
• M2: 553,363 km (0.047 R)
• M3: 1,033,572 km (0.108 R)
• M4: 1,481,917 km (0.082 R)
• M5: 1,851,573 km (0.11 R)
• M6: 3,210,071 km (0.113 R)
• M7: 3,629,394 km (0.105 R)
• M8: 4,327,418 km (0.11 R)
• M9: 4,716,522 km (0.12 R)
• M10: 5,112,806 km (0.086 R)
• M11: 5,669,909 km (0.078 R)
• M12: 6,045,250 km (0.091 R)
• M13: 6,532,939 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.7

Radius: 13.9

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.01 AU - 1.25 AU

Year: 764 Days

Day: 14.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 45,754,297 km

• M1: 172,935 km (0.092 R)
• M2: 731,833 km (0.043 R)
• M3: 1,173,296 km (0.095 R)
• M4: 1,714,392 km (0.115 R)
• M5: 2,154,209 km (0.058 R)
• M6: 3,817,738 km (0.06 R)
• M7: 4,366,463 km (0.112 R)
• M8: 6,901,099 km (0.029 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.1

Radius: 9.8

Gravity: 7.62 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.89 AU - 2.07 AU

Year: 1771 Days

Day: 14.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,754,297 km

• M1: 121,922 km (0.105 R)
• M2: 614,997 km (0.095 R)
• M3: 976,724 km (0.057 R)
• M4: 1,282,652 km (0.098 R)
• M5: 2,858,666 km (0.111 R)
• M6: 3,501,189 km (0.09 R)
• M7: 4,943,910 km (0.11 R)
• M8: 6,774,540 km (0.11 R)
• M9: 8,986,194 km (0.078 R)
• M10: 9,341,938 km (0.074 R)
• M11: 9,740,916 km (0.093 R)
• M12: 11,153,419 km (0.119 R)
• M13: 14,688,865 km (0.109 R)
• M14: 15,092,630 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.7

Radius: 8.3

Gravity: 10.53 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 3.1 AU - 3.16 AU

Year: 3521 Days

Day: 5.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 45,754,297 km

• M1: 103,223 km (0.114 R)
• M2: 510,278 km (0.06 R)
• M3: 825,930 km (0.113 R)
• M4: 1,487,751 km (0.078 R)
• M5: 2,313,980 km (0.104 R)
• M6: 3,227,724 km (0.051 R)
• M7: 3,634,031 km (0.119 R)
• M8: 4,739,560 km (0.118 R)
• M9: 6,256,781 km (0.107 R)
• M10: 6,858,614 km (0.104 R)
• M11: 7,173,816 km (0.077 R)
• M12: 8,107,905 km (0.117 R)
• M13: 8,389,149 km (0.098 R)
• M14: 10,502,967 km (0.107 R)
• M15: 12,019,591 km (0.051 R)
• M16: 12,524,932 km (0.068 R)
• M17: 14,637,553 km (0.107 R)
• M18: 19,807,356 km (0.119 R)
• M19: 22,040,853 km (0.07 R)
• M20: 22,728,554 km (0.112 R)
• M21: 23,077,716 km (0.091 R)
• M22: 23,430,467 km (0.119 R)
• M23: 24,074,486 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.4

Radius: 10.3

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 3.54 AU - 3.66 AU

Year: 4343 Days

Day: 13.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 45,754,297 km

• M1: 128,056 km (0.089 R)
• M2: 540,048 km (0.03 R)
• M3: 1,523,206 km (0.111 R)
• M4: 2,031,090 km (0.078 R)
• M5: 2,434,855 km (0.11 R)
• M6: 3,083,960 km (0.087 R)
• M7: 4,038,694 km (0.094 R)
• M8: 4,362,723 km (0.025 R)
• M9: 4,949,296 km (0.107 R)
• M10: 6,441,385 km (0.043 R)
• M11: 7,439,502 km (0.111 R)
• M12: 9,211,938 km (0.066 R)
• M13: 9,633,205 km (0.095 R)
• M14: 9,957,683 km (0.117 R)
• M15: 11,772,305 km (0.082 R)
• M16: 12,479,903 km (0.051 R)
• M17: 13,661,876 km (0.104 R)
• M18: 14,916,703 km (0.051 R)
• M19: 16,196,363 km (0.083 R)
• M20: 17,494,424 km (0.066 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 393.2

Radius: 5.3

Gravity: 14 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 5.72 AU - 8.7 AU

Year: 12309 Days

Day: 15.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 45,754,297 km

• M1: 69,264 km (0.118 R)
• M2: 415,284 km (0.119 R)
• M3: 729,589 km (0.066 R)
• M4: 1,068,877 km (0.076 R)
• M5: 1,349,522 km (0.082 R)
• M6: 2,024,807 km (0.098 R)
• M7: 2,215,395 km (0.074 R)
• M8: 3,214,858 km (0.113 R)
• M9: 3,475,159 km (0.068 R)
• M10: 4,011,168 km (0.055 R)
• M11: 5,441,174 km (0.11 R)
• M12: 6,234,042 km (0.082 R)
• M13: 7,220,341 km (0.086 R)
• M14: 7,834,440 km (0.034 R)
• M15: 8,842,581 km (0.099 R)
• M16: 9,072,812 km (0.075 R)
• M17: 10,693,405 km (0.064 R)
• M18: 13,623,579 km (0.086 R)
• M19: 16,007,271 km (0.116 R)
• M20: 17,839,396 km (0.105 R)
• M21: 20,360,420 km (0.089 R)
• M22: 22,336,458 km (0.068 R)
• M23: 29,329,560 km (0.099 R)
• M24: 32,166,385 km (0.07 R)
• M25: 32,492,508 km (0.085 R)
• M26: 33,818,843 km (0.072 R)
• M27: 34,156,036 km (0.096 R)
• M28: 34,722,863 km (0.115 R)
• M29: 38,622,729 km (0.102 R)
• M30: 45,754,359 km (0.088 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 335 - 20,166 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit