🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.52 AU - 0.62 AU

Year: 151 Days

Day: 46.4 Hours

Environment

Temp: 185 °C

Axial Tilt: 37.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 100,847,476 km

• M1: 46,226 km (0.056 R)

Planet 2 - Terrestrial

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 3.42 AU - 4.22 AU

Year: 2612 Days

Day: 41.9 Hours

Environment

Temp: -118 °C

Axial Tilt: 18.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.92 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 6.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.9

Radius: 12.7

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 4.69 AU - 7.33 AU

Year: 5155 Days

Day: 5.5 Hours

Environment

Temp: -151 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 100,847,476 km

• M1: 159,322 km (0.057 R)
• M2: 665,711 km (0.102 R)
• M3: 1,232,238 km (0.103 R)
• M4: 2,126,534 km (0.108 R)
• M5: 2,587,744 km (0.105 R)
• M6: 3,715,562 km (0.117 R)
• M7: 4,909,503 km (0.119 R)
• M8: 5,393,153 km (0.101 R)
• M9: 6,316,620 km (0.114 R)
• M10: 6,743,573 km (0.116 R)
• M11: 9,576,208 km (0.118 R)
• M12: 11,379,312 km (0.071 R)
• M13: 11,884,803 km (0.073 R)
• M14: 14,396,551 km (0.107 R)
• M15: 15,189,270 km (0.101 R)
• M16: 16,432,578 km (0.036 R)
• M17: 17,079,140 km (0.026 R)
• M18: 17,911,203 km (0.113 R)
• M19: 19,003,717 km (0.039 R)
• M20: 19,656,263 km (0.098 R)
• M21: 21,194,877 km (0.061 R)

Planet 4 - Gas Giant

Semi-Major Axis: 10.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586.3

Radius: 15

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 10.11 AU - 11.07 AU

Year: 12056 Days

Day: 9.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 100,847,476 km

• M1: 186,549 km (0.053 R)
• M2: 1,702,125 km (0.114 R)
• M3: 2,388,928 km (0.111 R)
• M4: 3,700,902 km (0.083 R)
• M5: 5,219,021 km (0.063 R)
• M6: 7,161,998 km (0.057 R)
• M7: 8,052,405 km (0.086 R)
• M8: 8,873,248 km (0.057 R)
• M9: 12,607,211 km (0.119 R)
• M10: 19,041,415 km (0.1 R)
• M11: 20,251,363 km (0.087 R)
• M12: 33,087,159 km (0.095 R)
• M13: 33,895,287 km (0.097 R)
• M14: 38,640,382 km (0.11 R)
• M15: 42,714,979 km (0.12 R)
• M16: 46,346,468 km (0.117 R)
• M17: 49,876,828 km (0.111 R)

Planet 5 - Ice Giant

Semi-Major Axis: 15.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 379.2

Radius: 7.2

Gravity: 7.31 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 11.75 AU - 19.37 AU

Year: 21473 Days

Day: 16.4 Hours

Environment

Temp: -196 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 100,847,476 km

• M1: 121,773 km (0.112 R)
• M2: 347,516 km (0.108 R)
• M3: 712,834 km (0.033 R)
• M4: 3,349,646 km (0.066 R)
• M5: 3,940,258 km (0.108 R)
• M6: 4,244,989 km (0.073 R)
• M7: 6,666,829 km (0.101 R)
• M8: 9,939,283 km (0.097 R)
• M9: 10,505,361 km (0.086 R)
• M10: 12,985,694 km (0.098 R)
• M11: 13,869,368 km (0.094 R)
• M12: 20,840,928 km (0.086 R)
• M13: 25,853,055 km (0.087 R)
• M14: 30,422,522 km (0.114 R)
• M15: 35,502,716 km (0.113 R)
• M16: 39,840,157 km (0.034 R)
• M17: 48,578,019 km (0.115 R)
• M18: 50,039,141 km (0.039 R)
• M19: 51,362,185 km (0.06 R)
• M20: 62,797,596 km (0.053 R)

Planet 6 - Ice Giant

Semi-Major Axis: 19.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 730.7

Radius: 5.8

Gravity: 21.72 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 15.4 AU - 23.1 AU

Year: 29548 Days

Day: 24.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 100,847,476 km

• M1: 75,098 km (0.095 R)
• M2: 385,813 km (0.052 R)
• M3: 720,613 km (0.104 R)
• M4: 1,018,761 km (0.076 R)
• M5: 2,077,765 km (0.063 R)
• M6: 2,659,252 km (0.067 R)
• M7: 3,693,721 km (0.115 R)
• M8: 5,386,421 km (0.081 R)
• M9: 6,330,234 km (0.109 R)
• M10: 10,139,295 km (0.096 R)
• M11: 10,736,490 km (0.104 R)
• M12: 13,757,020 km (0.073 R)
• M13: 14,323,847 km (0.119 R)
• M14: 15,852,587 km (0.11 R)
• M15: 20,144,251 km (0.076 R)
• M16: 25,390,947 km (0.083 R)
• M17: 26,366,176 km (0.094 R)
• M18: 26,988,204 km (0.096 R)
• M19: 28,651,283 km (0.036 R)
• M20: 32,321,667 km (0.117 R)
• M21: 33,177,666 km (0.099 R)
• M22: 34,048,924 km (0.074 R)
• M23: 36,293,341 km (0.069 R)
• M24: 40,086,545 km (0.074 R)
• M25: 40,414,014 km (0.104 R)
• M26: 44,835,978 km (0.107 R)
• M27: 53,628,293 km (0.095 R)
• M28: 54,025,925 km (0.106 R)
• M29: 54,827,320 km (0.063 R)
• M30: 56,044,000 km (0.097 R)
• M31: 71,836,449 km (0.118 R)
• M32: 75,763,393 km (0.09 R)
• M33: 84,578,447 km (0.062 R)
• M34: 85,929,915 km (0.117 R)
• M35: 96,673,884 km (0.087 R)
• M36: 97,262,851 km (0.102 R)
• M37: 100,244,037 km (0.101 R)

Kuiper Belt

Range: 31.4 - 53.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 250 - 13,708 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit