🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.4

Radius: 10.4

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.71 AU - 0.89 AU

Year: 469 Days

Day: 6.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,905,045 km

• M1: 129,402 km (0.102 R)
• M2: 494,571 km (0.11 R)
• M3: 1,884,185 km (0.107 R)
• M4: 2,329,837 km (0.057 R)
• M5: 2,668,527 km (0.103 R)
• M6: 3,200,796 km (0.055 R)
• M7: 4,118,130 km (0.072 R)
• M8: 4,744,796 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.6

Radius: 13.1

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.76 AU - 0.92 AU

Year: 505 Days

Day: 6 Hours

Environment

Temp: -157 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,905,045 km

• M1: 162,912 km (0.087 R)
• M2: 581,337 km (0.113 R)
• M3: 1,081,144 km (0.073 R)
• M4: 1,562,400 km (0.097 R)
• M5: 2,195,947 km (0.088 R)
• M6: 2,850,737 km (0.061 R)
• M7: 3,346,654 km (0.119 R)
• M8: 3,793,802 km (0.117 R)
• M9: 4,306,624 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835

Radius: 11.5

Gravity: 6.31 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.88 AU - 1.1 AU

Year: 646 Days

Day: 10.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,905,045 km

• M1: 144,811 km (0.05 R)
• M2: 502,499 km (0.077 R)
• M3: 968,197 km (0.117 R)
• M4: 1,558,361 km (0.071 R)
• M5: 1,937,292 km (0.096 R)
• M6: 2,357,812 km (0.051 R)
• M7: 2,735,846 km (0.053 R)
• M8: 3,117,021 km (0.066 R)
• M9: 3,479,796 km (0.053 R)
• M10: 4,610,307 km (0.119 R)
• M11: 5,552,325 km (0.12 R)
• M12: 5,912,856 km (0.081 R)
• M13: 6,472,801 km (0.12 R)
• M14: 7,378,765 km (0.085 R)
• M15: 7,957,111 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554.2

Radius: 13.8

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.1 AU - 2.48 AU

Year: 2273 Days

Day: 5.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 37,905,045 km

• M1: 172,038 km (0.049 R)
• M2: 616,194 km (0.101 R)
• M3: 1,082,191 km (0.088 R)
• M4: 1,805,796 km (0.06 R)
• M5: 2,513,543 km (0.064 R)
• M6: 3,172,971 km (0.101 R)
• M7: 3,622,512 km (0.103 R)
• M8: 4,249,627 km (0.046 R)
• M9: 5,698,931 km (0.092 R)
• M10: 7,007,314 km (0.066 R)
• M11: 8,075,592 km (0.107 R)
• M12: 9,316,507 km (0.047 R)
• M13: 12,015,402 km (0.11 R)
• M14: 12,784,933 km (0.05 R)
• M15: 13,245,246 km (0.089 R)
• M16: 15,198,844 km (0.119 R)
• M17: 16,196,064 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.3

Radius: 14.8

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 2.92 AU - 3.18 AU

Year: 3494 Days

Day: 10.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,905,045 km

• M1: 184,005 km (0.081 R)
• M2: 732,730 km (0.081 R)
• M3: 1,222,215 km (0.048 R)
• M4: 1,715,289 km (0.08 R)
• M5: 2,343,899 km (0.064 R)
• M6: 3,010,059 km (0.118 R)
• M7: 4,466,095 km (0.101 R)
• M8: 6,911,571 km (0.101 R)
• M9: 7,657,317 km (0.113 R)
• M10: 8,194,672 km (0.06 R)
• M11: 8,961,960 km (0.109 R)
• M12: 10,912,865 km (0.106 R)
• M13: 15,292,792 km (0.05 R)
• M14: 18,285,647 km (0.108 R)
• M15: 19,655,515 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556.4

Radius: 14.6

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 2.67 AU - 3.67 AU

Year: 3703 Days

Day: 7.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 37,905,045 km

• M1: 181,612 km (0.08 R)
• M2: 1,096,702 km (0.112 R)
• M3: 1,645,876 km (0.117 R)
• M4: 2,408,526 km (0.108 R)
• M5: 2,922,993 km (0.096 R)
• M6: 3,704,642 km (0.112 R)
• M7: 4,645,463 km (0.072 R)
• M8: 5,607,826 km (0.073 R)
• M9: 6,292,236 km (0.03 R)
• M10: 7,535,245 km (0.105 R)
• M11: 8,614,743 km (0.106 R)
• M12: 10,626,386 km (0.082 R)
• M13: 12,842,379 km (0.1 R)
• M14: 13,741,911 km (0.111 R)
• M15: 14,886,484 km (0.118 R)
• M16: 15,772,702 km (0.077 R)
• M17: 19,245,018 km (0.107 R)
• M18: 21,979,518 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 587.8

Radius: 14.7

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 3.07 AU - 4.17 AU

Year: 4518 Days

Day: 13.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 128.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 37,905,045 km

• M1: 182,958 km (0.116 R)
• M2: 730,786 km (0.089 R)
• M3: 1,364,482 km (0.101 R)
• M4: 1,874,910 km (0.097 R)
• M5: 2,345,246 km (0.117 R)
• M6: 7,806,166 km (0.12 R)
• M7: 9,163,618 km (0.063 R)
• M8: 10,889,678 km (0.095 R)
• M9: 12,486,336 km (0.09 R)
• M10: 13,316,006 km (0.095 R)
• M11: 14,977,589 km (0.078 R)
• M12: 18,273,530 km (0.059 R)
• M13: 26,028,982 km (0.058 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814

Radius: 13.1

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 3.76 AU - 5.42 AU

Year: 6451 Days

Day: 13.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 37,905,045 km

• M1: 162,912 km (0.112 R)
• M2: 704,456 km (0.108 R)
• M3: 1,309,131 km (0.118 R)
• M4: 1,739,823 km (0.086 R)
• M5: 2,471,357 km (0.052 R)
• M6: 2,899,656 km (0.091 R)
• M7: 3,579,279 km (0.066 R)
• M8: 5,718,528 km (0.063 R)
• M9: 9,555,414 km (0.091 R)
• M10: 11,616,275 km (0.102 R)
• M11: 12,561,584 km (0.112 R)
• M12: 14,250,095 km (0.107 R)
• M13: 15,895,073 km (0.092 R)
• M14: 17,326,425 km (0.044 R)
• M15: 18,560,009 km (0.116 R)
• M16: 19,198,493 km (0.074 R)
• M17: 20,146,495 km (0.118 R)
• M18: 22,853,917 km (0.106 R)
• M19: 24,169,032 km (0.116 R)
• M20: 25,016,205 km (0.028 R)
• M21: 27,952,961 km (0.075 R)
• M22: 30,619,094 km (0.097 R)
• M23: 32,932,475 km (0.073 R)
• M24: 37,566,419 km (0.039 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: 277 - 16,018 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit