🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.7

Radius: 13

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.67 AU - 0.79 AU

Year: 431 Days

Day: 14 Hours

Environment

Temp: -155 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 31,852,914 km

• M1: 162,314 km (0.096 R)
• M2: 630,555 km (0.097 R)
• M3: 1,410,259 km (0.082 R)
• M4: 1,888,374 km (0.076 R)
• M5: 2,689,919 km (0.11 R)
• M6: 5,478,274 km (0.101 R)
• M7: 6,006,803 km (0.042 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45

Radius: 10.7

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.72 AU - 1.18 AU

Year: 639 Days

Day: 8.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 31,852,914 km

• M1: 133,142 km (0.035 R)
• M2: 655,388 km (0.088 R)
• M3: 999,164 km (0.12 R)
• M4: 1,426,715 km (0.116 R)
• M5: 1,800,410 km (0.095 R)
• M6: 2,528,354 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.5

Radius: 12.8

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.03 AU - 1.49 AU

Year: 976 Days

Day: 10 Hours

Environment

Temp: -190 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 31,852,914 km

• M1: 159,471 km (0.03 R)
• M2: 580,440 km (0.108 R)
• M3: 1,157,888 km (0.114 R)
• M4: 1,644,529 km (0.035 R)
• M5: 2,046,948 km (0.119 R)
• M6: 2,760,829 km (0.063 R)
• M7: 3,337,528 km (0.045 R)
• M8: 4,255,760 km (0.094 R)
• M9: 4,782,794 km (0.098 R)
• M10: 5,353,061 km (0.037 R)
• M11: 5,801,106 km (0.067 R)
• M12: 6,332,627 km (0.069 R)
• M13: 6,773,044 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 301.9

Radius: 13.9

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.28 AU - 1.36 AU

Year: 1047 Days

Day: 13.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 31,852,914 km

• M1: 172,935 km (0.056 R)
• M2: 611,406 km (0.084 R)
• M3: 1,400,834 km (0.055 R)
• M4: 1,911,412 km (0.049 R)
• M5: 2,442,185 km (0.091 R)
• M6: 3,219,645 km (0.048 R)
• M7: 3,736,805 km (0.081 R)
• M8: 5,412,451 km (0.043 R)
• M9: 6,148,173 km (0.069 R)
• M10: 6,822,112 km (0.11 R)
• M11: 7,342,862 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.4

Radius: 13.7

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.27 AU - 1.63 AU

Year: 1205 Days

Day: 5.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 171.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 31,852,914 km

• M1: 170,392 km (0.096 R)
• M2: 614,997 km (0.101 R)
• M3: 1,201,869 km (0.117 R)
• M4: 1,854,266 km (0.063 R)
• M5: 2,627,238 km (0.115 R)
• M6: 3,621,465 km (0.101 R)
• M7: 4,618,535 km (0.068 R)
• M8: 6,548,796 km (0.11 R)
• M9: 8,556,849 km (0.094 R)
• M10: 8,997,564 km (0.103 R)
• M11: 9,716,830 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 324.3

Radius: 11.8

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.66 AU - 1.68 AU

Year: 1490 Days

Day: 10.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 31,852,914 km

• M1: 146,756 km (0.032 R)
• M2: 692,638 km (0.103 R)
• M3: 1,154,297 km (0.078 R)
• M4: 1,527,993 km (0.077 R)
• M5: 1,964,669 km (0.083 R)
• M6: 3,029,058 km (0.094 R)
• M7: 3,712,421 km (0.031 R)
• M8: 4,173,631 km (0.081 R)
• M9: 4,637,085 km (0.107 R)
• M10: 5,269,735 km (0.039 R)
• M11: 5,709,253 km (0.077 R)
• M12: 6,129,922 km (0.098 R)
• M13: 6,593,975 km (0.067 R)
• M14: 7,493,357 km (0.079 R)
• M15: 8,076,490 km (0.108 R)
• M16: 8,499,852 km (0.047 R)
• M17: 9,919,236 km (0.077 R)
• M18: 10,312,828 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373.9

Radius: 13.4

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.54 AU - 2.18 AU

Year: 1751 Days

Day: 5.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 31,852,914 km

• M1: 166,951 km (0.108 R)
• M2: 605,273 km (0.119 R)
• M3: 1,121,535 km (0.104 R)
• M4: 1,633,459 km (0.093 R)
• M5: 2,612,727 km (0.06 R)
• M6: 3,248,667 km (0.089 R)
• M7: 3,986,185 km (0.092 R)
• M8: 4,890,803 km (0.08 R)
• M9: 5,371,461 km (0.069 R)
• M10: 5,839,852 km (0.107 R)
• M11: 6,499,130 km (0.038 R)
• M12: 7,646,396 km (0.066 R)
• M13: 8,103,118 km (0.072 R)
• M14: 8,521,244 km (0.07 R)
• M15: 9,130,856 km (0.063 R)
• M16: 10,667,226 km (0.055 R)
• M17: 11,341,463 km (0.116 R)
• M18: 11,794,895 km (0.048 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.5

Radius: 13.8

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.97 AU - 2.65 AU

Year: 2423 Days

Day: 5.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 31,852,914 km

• M1: 171,589 km (0.032 R)
• M2: 1,477,578 km (0.09 R)
• M3: 2,607,192 km (0.059 R)
• M4: 3,946,691 km (0.108 R)
• M5: 5,074,360 km (0.113 R)
• M6: 6,327,990 km (0.094 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.9

Radius: 8.9

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 4.43 AU - 4.67 AU

Year: 6699 Days

Day: 11.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 31,852,914 km

• M1: 116,238 km (0.062 R)
• M2: 453,282 km (0.104 R)
• M3: 853,306 km (0.066 R)
• M4: 1,314,816 km (0.079 R)
• M5: 2,142,242 km (0.051 R)
• M6: 2,547,353 km (0.119 R)
• M7: 3,120,462 km (0.108 R)
• M8: 5,026,040 km (0.039 R)
• M9: 5,745,007 km (0.11 R)
• M10: 6,596,817 km (0.089 R)
• M11: 10,674,855 km (0.093 R)
• M12: 11,186,031 km (0.106 R)
• M13: 14,099,899 km (0.059 R)
• M14: 15,000,926 km (0.103 R)
• M15: 16,120,068 km (0.06 R)
• M16: 16,484,937 km (0.059 R)
• M17: 18,260,514 km (0.086 R)
• M18: 22,563,548 km (0.09 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 208 - 10,949 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit