🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.2

Radius: 8.8

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.62 AU - 0.62 AU

Year: 326 Days

Day: 6.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,441,703 km

• M1: 110,104 km (0.05 R)
• M2: 394,639 km (0.097 R)
• M3: 819,348 km (0.115 R)
• M4: 1,361,789 km (0.109 R)
• M5: 1,766,003 km (0.047 R)
• M6: 2,076,269 km (0.119 R)
• M7: 2,447,571 km (0.098 R)
• M8: 3,126,296 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.7

Radius: 12.7

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.54 AU - 0.9 AU

Year: 407 Days

Day: 13.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 57,441,703 km

• M1: 157,975 km (0.075 R)
• M2: 596,746 km (0.072 R)
• M3: 1,121,086 km (0.106 R)
• M4: 2,096,465 km (0.101 R)
• M5: 3,143,051 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.8

Radius: 14

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.7 AU - 0.78 AU

Year: 424 Days

Day: 14.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,441,703 km

• M1: 174,132 km (0.064 R)
• M2: 672,592 km (0.091 R)
• M3: 1,155,494 km (0.117 R)
• M4: 1,726,808 km (0.105 R)
• M5: 2,332,979 km (0.039 R)
• M6: 3,068,701 km (0.11 R)
• M7: 4,390,548 km (0.053 R)
• M8: 5,066,581 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.1

Radius: 12.1

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.35 AU - 1.37 AU

Year: 1058 Days

Day: 8 Hours

Environment

Temp: -194 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,441,703 km

• M1: 150,495 km (0.045 R)
• M2: 619,186 km (0.119 R)
• M3: 1,090,568 km (0.06 R)
• M4: 1,796,222 km (0.1 R)
• M5: 2,746,617 km (0.106 R)
• M6: 3,717,357 km (0.066 R)
• M7: 4,425,255 km (0.077 R)
• M8: 4,935,234 km (0.117 R)
• M9: 5,484,408 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.9

Radius: 14.3

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3.25 AU - 4.95 AU

Year: 5536 Days

Day: 10.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 57,441,703 km

• M1: 177,872 km (0.111 R)
• M2: 678,277 km (0.104 R)
• M3: 1,199,625 km (0.093 R)
• M4: 1,767,798 km (0.113 R)
• M5: 3,217,551 km (0.105 R)
• M6: 4,502,896 km (0.031 R)
• M7: 5,042,944 km (0.058 R)
• M8: 5,626,226 km (0.12 R)
• M9: 8,315,846 km (0.093 R)
• M10: 9,171,097 km (0.079 R)
• M11: 9,800,157 km (0.11 R)
• M12: 10,754,741 km (0.106 R)
• M13: 15,918,261 km (0.109 R)
• M14: 16,483,142 km (0.028 R)
• M15: 18,628,076 km (0.051 R)
• M16: 21,290,919 km (0.086 R)
• M17: 21,769,781 km (0.036 R)
• M18: 22,607,230 km (0.082 R)
• M19: 23,177,497 km (0.116 R)
• M20: 23,757,189 km (0.109 R)
• M21: 24,795,249 km (0.101 R)
• M22: 25,249,129 km (0.111 R)
• M23: 25,785,886 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442.1

Radius: 10.6

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 4.89 AU - 5.49 AU

Year: 7885 Days

Day: 5.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,441,703 km

• M1: 132,245 km (0.104 R)
• M2: 637,287 km (0.09 R)
• M3: 990,787 km (0.036 R)
• M4: 1,467,854 km (0.115 R)
• M5: 2,173,358 km (0.095 R)
• M6: 3,214,709 km (0.084 R)
• M7: 4,027,025 km (0.04 R)
• M8: 5,435,040 km (0.08 R)
• M9: 7,328,800 km (0.102 R)
• M10: 7,970,126 km (0.116 R)
• M11: 9,321,743 km (0.066 R)
• M12: 10,074,818 km (0.1 R)
• M13: 11,452,764 km (0.075 R)
• M14: 12,791,366 km (0.097 R)
• M15: 16,400,265 km (0.056 R)
• M16: 16,975,170 km (0.109 R)
• M17: 17,695,932 km (0.094 R)
• M18: 20,343,964 km (0.107 R)
• M19: 21,382,772 km (0.101 R)
• M20: 22,223,512 km (0.078 R)
• M21: 24,380,563 km (0.087 R)
• M22: 31,099,153 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 606.3

Radius: 7

Gravity: 12.37 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 6.97 AU - 8.21 AU

Year: 13944 Days

Day: 18 Hours

Environment

Temp: -240 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 57,441,703 km

• M1: 87,066 km (0.108 R)
• M2: 566,826 km (0.097 R)
• M3: 1,095,056 km (0.104 R)
• M4: 1,845,739 km (0.08 R)
• M5: 2,129,526 km (0.106 R)
• M6: 3,675,769 km (0.088 R)
• M7: 4,069,062 km (0.085 R)
• M8: 4,775,613 km (0.06 R)
• M9: 5,706,261 km (0.073 R)
• M10: 6,272,788 km (0.09 R)
• M11: 7,606,005 km (0.067 R)
• M12: 8,058,837 km (0.11 R)
• M13: 11,219,840 km (0.077 R)
• M14: 16,501,393 km (0.103 R)
• M15: 17,648,061 km (0.07 R)
• M16: 18,041,802 km (0.081 R)
• M17: 20,788,868 km (0.116 R)
• M18: 21,494,521 km (0.112 R)
• M19: 21,943,614 km (0.034 R)
• M20: 23,612,378 km (0.079 R)
• M21: 25,563,733 km (0.112 R)
• M22: 27,514,788 km (0.049 R)
• M23: 30,342,487 km (0.11 R)
• M24: 32,175,660 km (0.106 R)
• M25: 33,718,462 km (0.104 R)
• M26: 34,324,783 km (0.114 R)
• M27: 37,079,179 km (0.075 R)
• M28: 39,039,509 km (0.068 R)
• M29: 40,112,874 km (0.11 R)
• M30: 40,930,576 km (0.085 R)
• M31: 42,458,568 km (0.071 R)
• M32: 43,307,836 km (0.116 R)
• M33: 51,627,721 km (0.107 R)
• M34: 54,068,859 km (0.082 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 412 - 20,208 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit