🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.3

Radius: 12.3

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.02 AU - 1.04 AU

Year: 697 Days

Day: 7.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,725,579 km

• M1: 153,039 km (0.041 R)
• M2: 543,489 km (0.092 R)
• M3: 980,464 km (0.038 R)
• M4: 1,886,728 km (0.081 R)
• M5: 2,330,884 km (0.117 R)
• M6: 3,611,442 km (0.095 R)
• M7: 4,510,974 km (0.112 R)
• M8: 4,944,808 km (0.113 R)
• M9: 5,498,619 km (0.113 R)
• M10: 6,133,214 km (0.105 R)
• M11: 7,077,026 km (0.065 R)
• M12: 8,163,556 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.3

Radius: 11.1

Gravity: 6.52 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.96 AU - 1.44 AU

Year: 877 Days

Day: 10.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,725,579 km

• M1: 139,126 km (0.03 R)
• M2: 491,579 km (0.079 R)
• M3: 866,770 km (0.092 R)
• M4: 1,219,073 km (0.115 R)
• M5: 1,619,098 km (0.094 R)
• M6: 2,348,836 km (0.109 R)
• M7: 3,136,469 km (0.066 R)
• M8: 3,748,623 km (0.041 R)
• M9: 4,541,791 km (0.104 R)
• M10: 5,561,600 km (0.072 R)
• M11: 7,673,473 km (0.086 R)
• M12: 8,308,217 km (0.095 R)
• M13: 9,171,247 km (0.093 R)
• M14: 9,740,467 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.9

Radius: 8.8

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.27 AU - 1.37 AU

Year: 1011 Days

Day: 13.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,725,579 km

• M1: 109,506 km (0.119 R)
• M2: 475,422 km (0.051 R)
• M3: 761,603 km (0.037 R)
• M4: 1,133,802 km (0.108 R)
• M5: 2,635,914 km (0.073 R)
• M6: 3,117,470 km (0.099 R)
• M7: 4,114,540 km (0.052 R)
• M8: 4,475,370 km (0.053 R)
• M9: 5,462,267 km (0.04 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 811.7

Radius: 14.2

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.4 AU - 1.42 AU

Year: 1116 Days

Day: 11.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 21,725,579 km

• M1: 177,124 km (0.093 R)
• M2: 686,205 km (0.085 R)
• M3: 1,253,481 km (0.114 R)
• M4: 2,021,067 km (0.116 R)
• M5: 2,767,411 km (0.101 R)
• M6: 3,476,804 km (0.06 R)
• M7: 6,063,351 km (0.099 R)
• M8: 7,341,216 km (0.102 R)
• M9: 7,990,471 km (0.103 R)
• M10: 9,585,035 km (0.069 R)
• M11: 10,266,303 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.5

Radius: 14.1

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.99 AU - 2.21 AU

Year: 2029 Days

Day: 6.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,725,579 km

• M1: 175,628 km (0.059 R)
• M2: 745,446 km (0.087 R)
• M3: 1,205,160 km (0.075 R)
• M4: 1,680,134 km (0.116 R)
• M5: 3,143,949 km (0.118 R)
• M6: 4,101,076 km (0.103 R)
• M7: 5,225,753 km (0.112 R)
• M8: 5,689,955 km (0.032 R)
• M9: 6,181,683 km (0.092 R)
• M10: 6,746,415 km (0.026 R)
• M11: 7,321,769 km (0.091 R)
• M12: 8,362,521 km (0.05 R)
• M13: 8,891,649 km (0.084 R)
• M14: 9,499,614 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.6

Radius: 14.7

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.93 AU - 2.39 AU

Year: 2117 Days

Day: 5.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,725,579 km

• M1: 182,809 km (0.082 R)
• M2: 2,567,548 km (0.096 R)
• M3: 3,195,859 km (0.119 R)
• M4: 3,742,490 km (0.109 R)
• M5: 4,493,322 km (0.047 R)
• M6: 5,435,938 km (0.057 R)
• M7: 5,992,292 km (0.111 R)
• M8: 6,912,170 km (0.116 R)
• M9: 7,537,339 km (0.106 R)
• M10: 8,169,091 km (0.097 R)
• M11: 8,803,535 km (0.079 R)
• M12: 10,906,283 km (0.104 R)
• M13: 11,441,844 km (0.115 R)
• M14: 13,542,646 km (0.064 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310

Radius: 12

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 3.53 AU - 3.65 AU

Year: 4536 Days

Day: 6.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 21,725,579 km

• M1: 149,448 km (0.116 R)
• M2: 622,926 km (0.1 R)
• M3: 1,351,916 km (0.096 R)
• M4: 1,782,309 km (0.059 R)
• M5: 2,403,739 km (0.118 R)
• M6: 3,079,173 km (0.068 R)
• M7: 3,958,659 km (0.055 R)
• M8: 4,446,797 km (0.051 R)
• M9: 5,168,008 km (0.112 R)
• M10: 5,647,768 km (0.101 R)
• M11: 8,646,757 km (0.044 R)
• M12: 9,179,176 km (0.056 R)
• M13: 9,961,273 km (0.099 R)
• M14: 12,530,916 km (0.062 R)
• M15: 13,825,237 km (0.078 R)
• M16: 16,195,017 km (0.04 R)
• M17: 16,786,676 km (0.091 R)
• M18: 17,225,896 km (0.088 R)
• M19: 19,179,045 km (0.112 R)
• M20: 21,467,743 km (0.041 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 237 - 14,111 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit