🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.22

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.53 AU - 0.79 AU

Year: 346 Days

Day: 17.9 Hours

Environment

Temp: -125 °C

Axial Tilt: 41.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.9

Radius: 14.7

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.61 AU - 0.75 AU

Year: 362 Days

Day: 5.8 Hours

Environment

Temp: -136 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 37,804,775 km

• M1: 184,005 km (0.05 R)
• M2: 803,640 km (0.11 R)
• M3: 1,307,635 km (0.093 R)
• M4: 2,708,469 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340

Radius: 10.9

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.76 AU - 0.96 AU

Year: 515 Days

Day: 5.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,804,775 km

• M1: 135,536 km (0.098 R)
• M2: 553,811 km (0.088 R)
• M3: 1,043,894 km (0.091 R)
• M4: 1,396,945 km (0.119 R)
• M5: 2,200,884 km (0.096 R)
• M6: 2,639,505 km (0.087 R)
• M7: 3,792,007 km (0.085 R)
• M8: 4,198,913 km (0.093 R)
• M9: 4,849,514 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.5

Radius: 8.3

Gravity: 12.81 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.81 AU - 1.15 AU

Year: 626 Days

Day: 12.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,804,775 km

• M1: 103,223 km (0.051 R)
• M2: 408,552 km (0.041 R)
• M3: 700,716 km (0.035 R)
• M4: 1,064,838 km (0.112 R)
• M5: 1,396,646 km (0.096 R)
• M6: 1,840,353 km (0.06 R)
• M7: 2,283,013 km (0.096 R)
• M8: 2,579,366 km (0.112 R)
• M9: 3,381,660 km (0.047 R)
• M10: 3,958,060 km (0.115 R)
• M11: 4,246,784 km (0.112 R)
• M12: 5,470,794 km (0.066 R)
• M13: 6,449,314 km (0.073 R)
• M14: 7,748,721 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 359

Radius: 13.9

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.6 AU - 3.06 AU

Year: 3074 Days

Day: 7 Hours

Environment

Temp: -191 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 37,804,775 km

• M1: 172,935 km (0.087 R)
• M2: 672,293 km (0.095 R)
• M3: 1,121,685 km (0.097 R)
• M4: 1,858,305 km (0.048 R)
• M5: 2,299,618 km (0.084 R)
• M6: 2,841,761 km (0.112 R)
• M7: 3,400,659 km (0.073 R)
• M8: 4,013,412 km (0.107 R)
• M9: 4,593,552 km (0.087 R)
• M10: 6,332,179 km (0.079 R)
• M11: 6,925,334 km (0.097 R)
• M12: 7,763,681 km (0.078 R)
• M13: 9,677,636 km (0.082 R)
• M14: 11,375,272 km (0.104 R)
• M15: 13,789,184 km (0.076 R)
• M16: 14,373,812 km (0.078 R)
• M17: 17,033,214 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.4

Radius: 12

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 2.42 AU - 3.28 AU

Year: 3107 Days

Day: 12.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 37,804,775 km

• M1: 154,834 km (0.109 R)
• M2: 599,738 km (0.097 R)
• M3: 983,756 km (0.114 R)
• M4: 1,996,982 km (0.032 R)
• M5: 2,405,683 km (0.056 R)
• M6: 3,152,626 km (0.12 R)
• M7: 4,906,062 km (0.107 R)
• M8: 5,605,582 km (0.051 R)
• M9: 6,136,953 km (0.1 R)
• M10: 6,549,694 km (0.078 R)
• M11: 7,365,900 km (0.072 R)
• M12: 8,073,498 km (0.08 R)
• M13: 8,642,718 km (0.109 R)
• M14: 9,821,848 km (0.098 R)
• M15: 11,191,866 km (0.105 R)
• M16: 12,970,734 km (0.093 R)
• M17: 14,617,358 km (0.072 R)
• M18: 15,089,638 km (0.097 R)
• M19: 15,789,906 km (0.105 R)
• M20: 16,738,207 km (0.099 R)
• M21: 17,139,428 km (0.044 R)
• M22: 17,961,468 km (0.077 R)
• M23: 19,368,586 km (0.058 R)
• M24: 21,989,092 km (0.086 R)
• M25: 23,670,123 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.6

Radius: 9.7

Gravity: 8.98 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 3.69 AU - 5.45 AU

Year: 6308 Days

Day: 12.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 37,804,775 km

• M1: 120,576 km (0.118 R)
• M2: 730,935 km (0.072 R)
• M3: 1,088,025 km (0.069 R)
• M4: 1,764,208 km (0.073 R)
• M5: 2,833,533 km (0.025 R)
• M6: 3,244,030 km (0.099 R)
• M7: 3,600,522 km (0.104 R)
• M8: 4,802,989 km (0.073 R)
• M9: 6,054,525 km (0.056 R)
• M10: 6,703,181 km (0.118 R)
• M11: 7,587,903 km (0.082 R)
• M12: 8,716,320 km (0.096 R)
• M13: 9,145,367 km (0.049 R)
• M14: 9,678,683 km (0.088 R)
• M15: 10,327,040 km (0.094 R)
• M16: 11,202,786 km (0.101 R)
• M17: 14,660,292 km (0.12 R)
• M18: 16,728,483 km (0.038 R)
• M19: 17,459,119 km (0.082 R)
• M20: 17,866,474 km (0.11 R)
• M21: 19,559,922 km (0.104 R)
• M22: 20,073,491 km (0.067 R)
• M23: 20,898,523 km (0.097 R)
• M24: 23,100,454 km (0.081 R)
• M25: 23,591,734 km (0.106 R)
• M26: 25,713,929 km (0.076 R)
• M27: 26,330,123 km (0.028 R)
• M28: 28,894,380 km (0.103 R)
• M29: 29,945,903 km (0.119 R)
• M30: 33,774,711 km (0.032 R)
• M31: 34,941,126 km (0.066 R)
• M32: 36,685,587 km (0.115 R)
• M33: 37,130,491 km (0.109 R)
• M34: 37,579,135 km (0.086 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: 456 - 13,050 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit