🌌 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 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.6

Radius: 10

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.61 AU - 0.69 AU

Year: 362 Days

Day: 8.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 17,903,092 km

• M1: 124,316 km (0.086 R)
• M2: 445,353 km (0.108 R)
• M3: 758,760 km (0.052 R)
• M4: 1,075,160 km (0.067 R)
• M5: 1,428,211 km (0.077 R)
• M6: 1,754,933 km (0.037 R)
• M7: 2,292,587 km (0.08 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.8

Radius: 10.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.58 AU - 0.76 AU

Year: 379 Days

Day: 9.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 17,903,092 km

• M1: 132,245 km (0.107 R)
• M2: 470,934 km (0.111 R)
• M3: 1,157,738 km (0.103 R)
• M4: 1,493,436 km (0.075 R)
• M5: 2,267,156 km (0.111 R)
• M6: 3,114,927 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 637.1

Radius: 13.7

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.59 AU - 0.95 AU

Year: 466 Days

Day: 9.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 17,903,092 km

• M1: 170,392 km (0.089 R)
• M2: 751,430 km (0.117 R)
• M3: 1,296,266 km (0.084 R)
• M4: 1,788,443 km (0.071 R)
• M5: 2,270,297 km (0.108 R)
• M6: 2,777,284 km (0.081 R)
• M7: 3,244,030 km (0.091 R)
• M8: 4,254,414 km (0.068 R)
• M9: 4,683,909 km (0.094 R)
• M10: 5,581,048 km (0.041 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.9

Radius: 8.7

Gravity: 8.63 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.23 AU - 1.71 AU

Year: 1230 Days

Day: 8.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 17,903,092 km

• M1: 108,758 km (0.092 R)
• M2: 516,113 km (0.095 R)
• M3: 916,586 km (0.081 R)
• M4: 1,878,351 km (0.062 R)
• M5: 2,470,310 km (0.102 R)
• M6: 3,386,597 km (0.095 R)
• M7: 4,387,107 km (0.099 R)
• M8: 7,435,463 km (0.06 R)
• M9: 8,395,881 km (0.103 R)
• M10: 8,762,246 km (0.097 R)
• M11: 11,564,663 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.8

Radius: 14.5

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.54 AU - 2.02 AU

Year: 1639 Days

Day: 7.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 17,903,092 km

• M1: 180,265 km (0.101 R)
• M2: 1,541,157 km (0.1 R)
• M3: 2,464,475 km (0.091 R)
• M4: 3,109,841 km (0.092 R)
• M5: 3,765,678 km (0.095 R)
• M6: 4,493,770 km (0.116 R)
• M7: 5,229,942 km (0.103 R)
• M8: 6,280,119 km (0.111 R)
• M9: 6,944,632 km (0.078 R)
• M10: 7,628,444 km (0.074 R)
• M11: 8,918,277 km (0.112 R)
• M12: 9,504,701 km (0.104 R)
• M13: 10,382,391 km (0.108 R)
• M14: 10,997,089 km (0.053 R)
• M15: 11,527,713 km (0.072 R)
• M16: 12,337,187 km (0.049 R)
• M17: 13,262,898 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.4

Radius: 13.7

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 2.11 AU - 2.77 AU

Year: 2631 Days

Day: 13.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 17,903,092 km

• M1: 170,542 km (0.111 R)
• M2: 802,742 km (0.092 R)
• M3: 1,268,740 km (0.093 R)
• M4: 2,287,651 km (0.08 R)
• M5: 2,908,482 km (0.114 R)
• M6: 3,926,196 km (0.063 R)
• M7: 5,329,275 km (0.038 R)
• M8: 7,142,251 km (0.073 R)
• M9: 7,725,084 km (0.115 R)
• M10: 8,532,913 km (0.096 R)
• M11: 9,515,771 km (0.091 R)
• M12: 11,569,301 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.8

Radius: 14.2

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.41 AU - 2.69 AU

Year: 2811 Days

Day: 14.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 155.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 17,903,092 km

• M1: 177,722 km (0.087 R)
• M2: 647,310 km (0.113 R)
• M3: 1,194,838 km (0.095 R)
• M4: 2,080,308 km (0.109 R)
• M5: 2,543,762 km (0.081 R)
• M6: 4,452,781 km (0.102 R)
• M7: 5,419,332 km (0.074 R)
• M8: 6,310,637 km (0.105 R)
• M9: 7,326,406 km (0.062 R)
• M10: 9,068,025 km (0.093 R)
• M11: 9,752,584 km (0.045 R)
• M12: 11,615,527 km (0.107 R)
• M13: 12,715,370 km (0.109 R)
• M14: 13,705,858 km (0.115 R)
• M15: 14,516,529 km (0.083 R)
• M16: 16,482,544 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.7

Radius: 14.3

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 3.31 AU - 4.25 AU

Year: 5073 Days

Day: 12.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 166.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 17,903,092 km

• M1: 177,872 km (0.107 R)
• M2: 700,866 km (0.07 R)
• M3: 1,426,565 km (0.047 R)
• M4: 1,880,744 km (0.062 R)
• M5: 2,474,199 km (0.085 R)
• M6: 2,938,102 km (0.111 R)
• M7: 3,460,498 km (0.099 R)
• M8: 4,567,971 km (0.095 R)
• M9: 5,320,299 km (0.063 R)
• M10: 6,179,738 km (0.067 R)
• M11: 8,333,200 km (0.049 R)
• M12: 8,983,651 km (0.099 R)
• M13: 11,491,510 km (0.103 R)
• M14: 12,093,193 km (0.103 R)
• M15: 14,853,273 km (0.108 R)
• M16: 15,519,433 km (0.106 R)
• M17: 16,106,305 km (0.095 R)
• M18: 17,903,125 km (0.113 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 437 - 19,302 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit