🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.49

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.63 AU - 1.05 AU

Year: 339 Days

Day: 23.6 Hours

Environment

Temp: -49 °C

Axial Tilt: 29.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.38 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.9

Radius: 12.8

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 3.52 AU - 4.3 AU

Year: 3400 Days

Day: 14.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 83,323,810 km

• M1: 162,014 km (0.05 R)
• M2: 766,390 km (0.107 R)
• M3: 1,530,685 km (0.087 R)
• M4: 2,018,674 km (0.086 R)
• M5: 2,566,800 km (0.112 R)
• M6: 4,395,185 km (0.116 R)
• M7: 4,901,275 km (0.115 R)
• M8: 5,900,589 km (0.065 R)
• M9: 6,380,200 km (0.107 R)
• M10: 7,694,716 km (0.111 R)
• M11: 8,170,886 km (0.119 R)
• M12: 9,358,843 km (0.082 R)
• M13: 10,200,181 km (0.057 R)
• M14: 11,091,485 km (0.039 R)
• M15: 12,416,773 km (0.096 R)
• M16: 12,940,216 km (0.081 R)
• M17: 13,799,057 km (0.076 R)
• M18: 15,281,422 km (0.099 R)
• M19: 15,731,114 km (0.12 R)
• M20: 16,709,484 km (0.059 R)
• M21: 17,133,295 km (0.06 R)
• M22: 19,536,285 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.2

Radius: 8.3

Gravity: 7.9 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 3.89 AU - 5.01 AU

Year: 4128 Days

Day: 11.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 83,323,810 km

• M1: 103,372 km (0.037 R)
• M2: 367,712 km (0.047 R)
• M3: 826,229 km (0.079 R)
• M4: 1,127,220 km (0.116 R)
• M5: 1,426,864 km (0.061 R)
• M6: 2,381,449 km (0.096 R)
• M7: 2,864,650 km (0.052 R)
• M8: 3,431,326 km (0.113 R)
• M9: 3,983,791 km (0.078 R)
• M10: 4,835,602 km (0.065 R)
• M11: 6,378,404 km (0.076 R)
• M12: 6,802,664 km (0.08 R)
• M13: 7,213,310 km (0.062 R)
• M14: 7,607,052 km (0.075 R)
• M15: 9,442,468 km (0.076 R)
• M16: 11,778,140 km (0.09 R)
• M17: 12,604,069 km (0.109 R)
• M18: 12,983,450 km (0.108 R)
• M19: 13,764,799 km (0.12 R)
• M20: 15,745,924 km (0.118 R)
• M21: 17,555,609 km (0.107 R)
• M22: 18,816,121 km (0.087 R)
• M23: 22,332,569 km (0.03 R)
• M24: 23,524,415 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.8

Radius: 9.7

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 4.68 AU - 4.92 AU

Year: 4624 Days

Day: 5 Hours

Environment

Temp: -178 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 83,323,810 km

• M1: 120,576 km (0.089 R)
• M2: 1,370,466 km (0.089 R)
• M3: 1,968,259 km (0.091 R)
• M4: 2,356,316 km (0.048 R)
• M5: 2,684,384 km (0.033 R)
• M6: 3,508,519 km (0.096 R)
• M7: 4,316,946 km (0.112 R)
• M8: 5,294,418 km (0.059 R)
• M9: 6,469,958 km (0.073 R)
• M10: 9,329,073 km (0.109 R)
• M11: 11,449,623 km (0.077 R)
• M12: 12,310,858 km (0.09 R)
• M13: 17,331,213 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 516.8

Radius: 9.1

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 6.73 AU - 10.57 AU

Year: 11186 Days

Day: 14.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 83,323,810 km

• M1: 113,246 km (0.11 R)
• M2: 434,881 km (0.119 R)
• M3: 872,904 km (0.031 R)
• M4: 1,940,733 km (0.099 R)
• M5: 3,790,960 km (0.026 R)
• M6: 4,331,008 km (0.117 R)
• M7: 5,366,076 km (0.102 R)
• M8: 5,906,722 km (0.103 R)
• M9: 6,226,563 km (0.118 R)
• M10: 7,018,085 km (0.09 R)
• M11: 10,245,509 km (0.038 R)
• M12: 12,011,063 km (0.117 R)
• M13: 15,256,739 km (0.025 R)
• M14: 15,725,130 km (0.063 R)
• M15: 16,690,485 km (0.058 R)
• M16: 17,403,917 km (0.099 R)
• M17: 20,221,294 km (0.088 R)
• M18: 25,413,836 km (0.117 R)
• M19: 27,718,241 km (0.08 R)
• M20: 31,002,962 km (0.087 R)
• M21: 33,630,499 km (0.104 R)
• M22: 39,574,621 km (0.094 R)
• M23: 43,859,403 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65.1

Radius: 10.8

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 6.94 AU - 10.98 AU

Year: 11793 Days

Day: 9.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 83,323,810 km

• M1: 138,827 km (0.092 R)
• M2: 546,481 km (0.092 R)
• M3: 1,276,668 km (0.109 R)
• M4: 2,188,617 km (0.081 R)
• M5: 3,151,429 km (0.031 R)
• M6: 3,528,864 km (0.1 R)
• M7: 3,873,538 km (0.066 R)
• M8: 4,398,626 km (0.093 R)
• M9: 6,062,603 km (0.074 R)
• M10: 6,957,797 km (0.086 R)
• M11: 7,836,984 km (0.069 R)
• M12: 9,894,403 km (0.104 R)
• M13: 10,626,086 km (0.106 R)
• M14: 11,133,672 km (0.09 R)
• M15: 12,243,239 km (0.043 R)
• M16: 13,182,714 km (0.114 R)
• M17: 15,099,212 km (0.036 R)
• M18: 15,579,122 km (0.089 R)
• M19: 18,013,528 km (0.088 R)
• M20: 21,217,316 km (0.117 R)
• M21: 22,090,968 km (0.063 R)
• M22: 23,410,720 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 613

Radius: 7

Gravity: 12.51 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 11.12 AU - 17.84 AU

Year: 24228 Days

Day: 18.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 83,323,810 km

• M1: 87,664 km (0.034 R)
• M2: 415,433 km (0.119 R)
• M3: 762,949 km (0.094 R)
• M4: 1,022,651 km (0.09 R)
• M5: 2,096,165 km (0.063 R)
• M6: 2,566,800 km (0.031 R)
• M7: 3,534,848 km (0.105 R)
• M8: 5,024,544 km (0.106 R)
• M9: 5,295,316 km (0.057 R)
• M10: 6,166,275 km (0.1 R)
• M11: 11,790,855 km (0.104 R)
• M12: 12,904,761 km (0.11 R)
• M13: 13,935,640 km (0.081 R)
• M14: 15,259,731 km (0.104 R)
• M15: 15,828,652 km (0.119 R)
• M16: 16,922,661 km (0.086 R)
• M17: 18,066,187 km (0.118 R)
• M18: 19,073,280 km (0.119 R)
• M19: 19,543,167 km (0.114 R)
• M20: 23,692,413 km (0.065 R)
• M21: 26,607,328 km (0.112 R)
• M22: 32,734,408 km (0.067 R)
• M23: 33,543,882 km (0.028 R)
• M24: 35,202,623 km (0.093 R)
• M25: 38,235,570 km (0.119 R)
• M26: 40,660,252 km (0.047 R)
• M27: 40,970,369 km (0.047 R)
• M28: 42,864,278 km (0.112 R)
• M29: 49,952,225 km (0.119 R)
• M30: 50,486,589 km (0.065 R)
• M31: 51,204,808 km (0.097 R)
• M32: 55,467,749 km (0.071 R)
• M33: 70,331,345 km (0.114 R)
• M34: 70,554,545 km (0.089 R)
• M35: 71,002,441 km (0.085 R)
• M36: 72,357,349 km (0.072 R)
• M37: 78,909,436 km (0.12 R)
• M38: 83,074,390 km (0.044 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 504 - 17,227 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit