🌌 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: 372.4

Radius: 11.7

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.64 AU - 0.82 AU

Year: 403 Days

Day: 14.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 16,023,319 km

• M1: 146,606 km (0.091 R)
• M2: 522,097 km (0.095 R)
• M3: 910,453 km (0.119 R)
• M4: 1,285,046 km (0.045 R)
• M5: 1,652,608 km (0.077 R)
• M6: 2,106,936 km (0.117 R)
• M7: 2,554,832 km (0.06 R)
• M8: 3,400,958 km (0.094 R)
• M9: 3,795,298 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487

Radius: 10.5

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.61 AU - 0.93 AU

Year: 436 Days

Day: 9.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 16,023,319 km

• M1: 130,599 km (0.112 R)
• M2: 479,162 km (0.099 R)
• M3: 891,753 km (0.105 R)
• M4: 1,247,497 km (0.049 R)
• M5: 1,756,578 km (0.115 R)
• M6: 2,142,242 km (0.055 R)
• M7: 2,556,328 km (0.066 R)
• M8: 3,340,072 km (0.104 R)
• M9: 3,690,729 km (0.071 R)
• M10: 4,053,055 km (0.104 R)
• M11: 5,163,371 km (0.042 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794.3

Radius: 8.7

Gravity: 10.49 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.67 AU - 0.91 AU

Year: 453 Days

Day: 7.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 16,023,319 km

• M1: 108,309 km (0.065 R)
• M2: 421,866 km (0.101 R)
• M3: 774,319 km (0.034 R)
• M4: 1,280,109 km (0.07 R)
• M5: 1,926,073 km (0.076 R)
• M6: 2,447,870 km (0.054 R)
• M7: 2,827,998 km (0.101 R)
• M8: 3,211,717 km (0.073 R)
• M9: 4,196,220 km (0.114 R)
• M10: 5,138,687 km (0.085 R)
• M11: 6,215,792 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340

Radius: 12.9

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.76 AU - 0.86 AU

Year: 471 Days

Day: 12.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 16,023,319 km

• M1: 160,369 km (0.031 R)
• M2: 683,213 km (0.109 R)
• M3: 1,236,426 km (0.112 R)
• M4: 2,030,342 km (0.101 R)
• M5: 2,695,155 km (0.12 R)
• M6: 3,110,738 km (0.116 R)
• M7: 4,356,140 km (0.098 R)
• M8: 4,791,321 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.4

Radius: 8.8

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.86 AU - 2.1 AU

Year: 1799 Days

Day: 8.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 142.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 16,023,319 km

• M1: 118,033 km (0.118 R)
• M2: 486,343 km (0.063 R)
• M3: 1,034,320 km (0.099 R)
• M4: 1,835,117 km (0.056 R)
• M5: 3,152,775 km (0.097 R)
• M6: 4,974,129 km (0.096 R)
• M7: 6,354,618 km (0.094 R)
• M8: 6,748,360 km (0.115 R)
• M9: 9,196,828 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.1

Radius: 14.2

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 2.33 AU - 3.39 AU

Year: 3123 Days

Day: 11.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 16,023,319 km

• M1: 180,864 km (0.053 R)
• M2: 731,833 km (0.107 R)
• M3: 1,659,788 km (0.116 R)
• M4: 2,281,966 km (0.052 R)
• M5: 2,829,943 km (0.113 R)
• M6: 4,234,667 km (0.115 R)
• M7: 4,702,459 km (0.119 R)
• M8: 5,204,809 km (0.104 R)
• M9: 5,939,035 km (0.055 R)
• M10: 6,714,401 km (0.114 R)
• M11: 7,852,392 km (0.108 R)
• M12: 8,467,838 km (0.103 R)
• M13: 8,950,291 km (0.068 R)
• M14: 9,451,294 km (0.115 R)
• M15: 10,219,928 km (0.071 R)
• M16: 10,842,106 km (0.107 R)
• M17: 11,606,401 km (0.093 R)
• M18: 13,030,124 km (0.047 R)
• M19: 13,718,574 km (0.057 R)
• M20: 14,981,778 km (0.078 R)
• M21: 15,737,546 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.5

Radius: 8.2

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 3.47 AU - 4.81 AU

Year: 5439 Days

Day: 14.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 16,023,319 km

• M1: 102,026 km (0.086 R)
• M2: 375,341 km (0.091 R)
• M3: 689,945 km (0.11 R)
• M4: 1,298,510 km (0.102 R)
• M5: 2,201,632 km (0.058 R)
• M6: 3,081,716 km (0.075 R)
• M7: 3,970,327 km (0.043 R)
• M8: 5,633,557 km (0.087 R)
• M9: 8,162,359 km (0.1 R)
• M10: 9,572,319 km (0.114 R)
• M11: 10,841,358 km (0.058 R)
• M12: 11,212,959 km (0.103 R)
• M13: 12,179,062 km (0.118 R)
• M14: 13,368,215 km (0.117 R)
• M15: 14,722,974 km (0.089 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: 549 - 13,761 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit