🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.7

Radius: 9.2

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.52 AU - 0.54 AU

Year: 257 Days

Day: 11.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,926,723 km

• M1: 114,442 km (0.103 R)
• M2: 591,061 km (0.094 R)
• M3: 1,007,542 km (0.112 R)
• M4: 1,319,752 km (0.114 R)
• M5: 1,627,475 km (0.083 R)
• M6: 1,998,029 km (0.104 R)
• M7: 2,432,910 km (0.105 R)
• M8: 2,799,874 km (0.102 R)
• M9: 3,103,857 km (0.079 R)
• M10: 3,409,036 km (0.051 R)
• M11: 3,779,291 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.8

Radius: 10.7

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.81 AU - 0.97 AU

Year: 560 Days

Day: 12.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 54,926,723 km

• M1: 133,740 km (0.042 R)
• M2: 705,354 km (0.091 R)
• M3: 1,053,319 km (0.117 R)
• M4: 1,710,352 km (0.093 R)
• M5: 2,599,413 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949.2

Radius: 12.9

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.72 AU - 1.06 AU

Year: 560 Days

Day: 8.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,926,723 km

• M1: 160,519 km (0.115 R)
• M2: 711,936 km (0.104 R)
• M3: 1,275,322 km (0.087 R)
• M4: 1,694,046 km (0.037 R)
• M5: 2,392,968 km (0.076 R)
• M6: 3,726,333 km (0.12 R)
• M7: 5,470,495 km (0.071 R)
• M8: 6,645,885 km (0.074 R)
• M9: 7,108,891 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.7

Radius: 12.4

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.58 AU - 1.88 AU

Year: 1517 Days

Day: 5.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,926,723 km

• M1: 156,629 km (0.101 R)
• M2: 695,929 km (0.114 R)
• M3: 1,705,715 km (0.048 R)
• M4: 2,500,977 km (0.083 R)
• M5: 3,514,802 km (0.097 R)
• M6: 5,674,247 km (0.068 R)
• M7: 6,551,340 km (0.102 R)
• M8: 10,555,476 km (0.067 R)
• M9: 10,952,060 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.1

Radius: 13.7

Gravity: 4.76 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.8 AU - 2.94 AU

Year: 2433 Days

Day: 8.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 54,926,723 km

• M1: 170,691 km (0.107 R)
• M2: 711,338 km (0.105 R)
• M3: 1,146,368 km (0.03 R)
• M4: 1,659,040 km (0.096 R)
• M5: 2,312,035 km (0.075 R)
• M6: 2,854,926 km (0.097 R)
• M7: 3,555,792 km (0.058 R)
• M8: 4,651,895 km (0.092 R)
• M9: 5,677,090 km (0.045 R)
• M10: 6,366,885 km (0.079 R)
• M11: 7,413,771 km (0.104 R)
• M12: 7,850,747 km (0.082 R)
• M13: 9,554,367 km (0.066 R)
• M14: 10,339,008 km (0.102 R)
• M15: 11,085,651 km (0.1 R)
• M16: 11,952,421 km (0.071 R)
• M17: 13,223,255 km (0.08 R)
• M18: 16,606,860 km (0.104 R)
• M19: 19,393,569 km (0.06 R)
• M20: 20,347,554 km (0.054 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 283.7

Radius: 4.7

Gravity: 12.84 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 6.03 AU - 8.83 AU

Year: 13506 Days

Day: 24.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 54,926,723 km

• M1: 58,493 km (0.093 R)
• M2: 396,883 km (0.037 R)
• M3: 588,817 km (0.039 R)
• M4: 851,511 km (0.083 R)
• M5: 1,864,289 km (0.098 R)
• M6: 2,507,709 km (0.11 R)
• M7: 5,740,070 km (0.049 R)
• M8: 6,512,295 km (0.071 R)
• M9: 7,592,242 km (0.078 R)
• M10: 8,652,890 km (0.101 R)
• M11: 13,406,812 km (0.097 R)
• M12: 14,071,176 km (0.034 R)
• M13: 15,860,665 km (0.1 R)
• M14: 16,672,084 km (0.099 R)
• M15: 17,087,966 km (0.104 R)
• M16: 17,298,451 km (0.052 R)
• M17: 20,273,354 km (0.036 R)
• M18: 26,549,583 km (0.113 R)
• M19: 28,865,807 km (0.1 R)
• M20: 29,264,635 km (0.056 R)
• M21: 31,313,378 km (0.113 R)
• M22: 33,785,482 km (0.083 R)
• M23: 36,153,467 km (0.104 R)
• M24: 39,601,997 km (0.099 R)
• M25: 42,874,750 km (0.061 R)
• M26: 43,263,555 km (0.028 R)
• M27: 43,524,154 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 473.7

Radius: 7.6

Gravity: 8.2 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 6.52 AU - 9.24 AU

Year: 14751 Days

Day: 18.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 54,926,723 km

• M1: 94,546 km (0.055 R)
• M2: 359,184 km (0.065 R)
• M3: 631,901 km (0.029 R)
• M4: 891,005 km (0.086 R)
• M5: 1,149,959 km (0.05 R)
• M6: 2,506,363 km (0.036 R)
• M7: 3,577,483 km (0.061 R)
• M8: 3,873,538 km (0.099 R)
• M9: 5,091,115 km (0.086 R)
• M10: 5,971,049 km (0.084 R)
• M11: 9,217,174 km (0.117 R)
• M12: 9,468,348 km (0.059 R)
• M13: 11,241,831 km (0.101 R)
• M14: 12,724,944 km (0.106 R)
• M15: 14,876,461 km (0.057 R)
• M16: 17,718,671 km (0.069 R)
• M17: 20,903,460 km (0.07 R)
• M18: 23,505,565 km (0.1 R)
• M19: 27,334,822 km (0.102 R)
• M20: 35,582,751 km (0.066 R)
• M21: 36,576,530 km (0.064 R)
• M22: 39,668,867 km (0.118 R)
• M23: 40,334,279 km (0.078 R)
• M24: 42,099,384 km (0.112 R)
• M25: 48,606,592 km (0.097 R)
• M26: 49,062,716 km (0.11 R)
• M27: 49,521,832 km (0.082 R)
• M28: 50,138,325 km (0.118 R)
• M29: 51,229,641 km (0.088 R)
• M30: 54,108,353 km (0.083 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 164 - 15,580 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit