🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.73

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.51 AU - 0.59 AU

Year: 268 Days

Day: 41.4 Hours

Environment

Temp: -129 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.1

Radius: 11.5

Gravity: 6.84 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.68 AU - 0.74 AU

Year: 392 Days

Day: 9.6 Hours

Environment

Temp: -134 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 53,064,753 km

• M1: 143,016 km (0.114 R)
• M2: 614,398 km (0.067 R)
• M3: 1,010,833 km (0.048 R)
• M4: 1,379,442 km (0.069 R)
• M5: 1,748,799 km (0.037 R)
• M6: 2,185,475 km (0.05 R)
• M7: 2,756,042 km (0.099 R)
• M8: 3,364,456 km (0.055 R)
• M9: 3,733,065 km (0.045 R)
• M10: 4,211,180 km (0.103 R)
• M11: 4,744,945 km (0.055 R)
• M12: 5,826,538 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871

Radius: 9.9

Gravity: 8.89 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.99 AU - 1.21 AU

Year: 757 Days

Day: 13.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 53,064,753 km

• M1: 123,269 km (0.112 R)
• M2: 449,542 km (0.078 R)
• M3: 947,403 km (0.118 R)
• M4: 1,360,892 km (0.069 R)
• M5: 1,785,451 km (0.089 R)
• M6: 2,133,266 km (0.116 R)
• M7: 2,606,294 km (0.053 R)
• M8: 3,095,778 km (0.084 R)
• M9: 3,778,393 km (0.036 R)
• M10: 4,390,698 km (0.111 R)
• M11: 5,049,826 km (0.092 R)
• M12: 5,793,327 km (0.075 R)
• M13: 6,499,579 km (0.1 R)
• M14: 7,100,513 km (0.067 R)
• M15: 8,336,341 km (0.087 R)
• M16: 8,858,139 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.2

Radius: 9.5

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.05 AU - 1.47 AU

Year: 928 Days

Day: 5.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,064,753 km

• M1: 123,867 km (0.101 R)
• M2: 615,745 km (0.054 R)
• M3: 1,217,577 km (0.117 R)
• M4: 1,524,402 km (0.049 R)
• M5: 1,893,011 km (0.091 R)
• M6: 2,267,904 km (0.104 R)
• M7: 2,740,035 km (0.119 R)
• M8: 3,103,258 km (0.117 R)
• M9: 3,442,247 km (0.055 R)
• M10: 4,115,138 km (0.094 R)
• M11: 4,474,921 km (0.085 R)
• M12: 5,108,917 km (0.11 R)
• M13: 5,781,659 km (0.094 R)
• M14: 6,821,214 km (0.09 R)
• M15: 7,516,545 km (0.118 R)
• M16: 7,931,081 km (0.092 R)
• M17: 8,309,414 km (0.081 R)
• M18: 9,048,128 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.3

Radius: 9.2

Gravity: 11.76 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 2.32 AU - 3.72 AU

Year: 3443 Days

Day: 10.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,064,753 km

• M1: 118,332 km (0.099 R)
• M2: 782,397 km (0.077 R)
• M3: 1,195,437 km (0.046 R)
• M4: 1,571,526 km (0.092 R)
• M5: 1,944,623 km (0.059 R)
• M6: 2,871,382 km (0.103 R)
• M7: 3,678,462 km (0.114 R)
• M8: 4,827,972 km (0.067 R)
• M9: 5,994,686 km (0.117 R)
• M10: 8,029,666 km (0.119 R)
• M11: 8,390,496 km (0.068 R)
• M12: 11,588,001 km (0.036 R)
• M13: 13,710,196 km (0.107 R)
• M14: 14,648,773 km (0.075 R)
• M15: 15,242,976 km (0.06 R)
• M16: 17,480,212 km (0.081 R)
• M17: 17,842,688 km (0.094 R)
• M18: 19,796,885 km (0.109 R)
• M19: 21,267,432 km (0.096 R)
• M20: 23,242,722 km (0.08 R)
• M21: 23,607,890 km (0.064 R)
• M22: 26,193,540 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.7

Radius: 9.5

Gravity: 8.68 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 5.08 AU - 5.12 AU

Year: 7556 Days

Day: 6.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 53,064,753 km

• M1: 119,977 km (0.093 R)
• M2: 425,606 km (0.104 R)
• M3: 830,268 km (0.113 R)
• M4: 1,365,529 km (0.11 R)
• M5: 2,616,168 km (0.108 R)
• M6: 4,618,834 km (0.119 R)
• M7: 5,949,059 km (0.047 R)
• M8: 13,042,690 km (0.045 R)
• M9: 14,649,072 km (0.082 R)
• M10: 16,316,789 km (0.078 R)
• M11: 20,641,963 km (0.06 R)
• M12: 21,590,264 km (0.116 R)
• M13: 25,138,725 km (0.106 R)
• M14: 27,614,570 km (0.059 R)
• M15: 34,015,265 km (0.098 R)
• M16: 40,477,893 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 747.8

Radius: 6.2

Gravity: 19.45 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 5.22 AU - 8 AU

Year: 11148 Days

Day: 24.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 53,064,753 km

• M1: 77,043 km (0.104 R)
• M2: 282,142 km (0.106 R)
• M3: 633,697 km (0.059 R)
• M4: 875,596 km (0.075 R)
• M5: 1,167,163 km (0.109 R)
• M6: 1,551,180 km (0.085 R)
• M7: 1,813,425 km (0.117 R)
• M8: 2,016,131 km (0.115 R)
• M9: 2,329,538 km (0.104 R)
• M10: 2,761,128 km (0.105 R)
• M11: 4,715,026 km (0.111 R)
• M12: 5,268,388 km (0.064 R)
• M13: 5,937,091 km (0.053 R)
• M14: 7,527,615 km (0.08 R)
• M15: 8,328,413 km (0.089 R)
• M16: 9,482,710 km (0.11 R)
• M17: 9,684,966 km (0.088 R)
• M18: 10,631,023 km (0.084 R)
• M19: 10,849,286 km (0.12 R)
• M20: 13,013,519 km (0.094 R)
• M21: 13,967,504 km (0.091 R)
• M22: 24,933,477 km (0.119 R)
• M23: 28,028,807 km (0.091 R)
• M24: 29,507,133 km (0.096 R)
• M25: 31,708,017 km (0.064 R)
• M26: 33,545,677 km (0.094 R)
• M27: 35,941,038 km (0.059 R)
• M28: 39,092,616 km (0.083 R)
• M29: 44,651,972 km (0.094 R)
• M30: 48,587,294 km (0.074 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 403 - 11,009 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit