🌌 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 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.4

Radius: 12.1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.47 AU - 0.69 AU

Year: 300 Days

Day: 13.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 54,916,912 km

• M1: 150,495 km (0.103 R)
• M2: 552,016 km (0.103 R)
• M3: 1,025,942 km (0.067 R)
• M4: 1,541,456 km (0.087 R)
• M5: 2,323,255 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.6

Radius: 12.7

Gravity: 4.76 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.56 AU - 0.72 AU

Year: 347 Days

Day: 8.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,916,912 km

• M1: 157,975 km (0.092 R)
• M2: 681,568 km (0.107 R)
• M3: 1,110,166 km (0.112 R)
• M4: 1,602,792 km (0.096 R)
• M5: 2,830,093 km (0.082 R)
• M6: 3,326,608 km (0.074 R)
• M7: 3,856,334 km (0.04 R)
• M8: 4,442,010 km (0.071 R)
• M9: 5,237,870 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 422.6

Radius: 15

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.81 AU - 1.03 AU

Year: 599 Days

Day: 7.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 63.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,916,912 km

• M1: 186,698 km (0.105 R)
• M2: 681,717 km (0.113 R)
• M3: 1,267,393 km (0.07 R)
• M4: 1,943,725 km (0.117 R)
• M5: 2,660,897 km (0.057 R)
• M6: 3,441,349 km (0.068 R)
• M7: 4,558,098 km (0.095 R)
• M8: 5,137,490 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 427.2

Radius: 9.8

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.88 AU - 1.24 AU

Year: 740 Days

Day: 5.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,916,912 km

• M1: 121,922 km (0.067 R)
• M2: 582,983 km (0.114 R)
• M3: 936,632 km (0.035 R)
• M4: 1,422,526 km (0.074 R)
• M5: 2,324,153 km (0.11 R)
• M6: 2,727,169 km (0.06 R)
• M7: 3,337,080 km (0.118 R)
• M8: 4,021,041 km (0.032 R)
• M9: 4,958,721 km (0.101 R)
• M10: 7,134,771 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484

Radius: 11.4

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.96 AU - 2.42 AU

Year: 2198 Days

Day: 13.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,916,912 km

• M1: 142,268 km (0.084 R)
• M2: 561,890 km (0.058 R)
• M3: 960,867 km (0.114 R)
• M4: 1,401,283 km (0.055 R)
• M5: 1,814,024 km (0.044 R)
• M6: 2,422,738 km (0.08 R)
• M7: 3,604,860 km (0.088 R)
• M8: 4,143,113 km (0.115 R)
• M9: 4,775,912 km (0.082 R)
• M10: 5,494,879 km (0.049 R)
• M11: 5,940,831 km (0.1 R)
• M12: 6,335,021 km (0.093 R)
• M13: 7,738,548 km (0.067 R)
• M14: 8,606,216 km (0.054 R)
• M15: 10,749,654 km (0.101 R)
• M16: 11,486,873 km (0.079 R)
• M17: 12,736,314 km (0.087 R)
• M18: 13,435,834 km (0.061 R)
• M19: 15,549,801 km (0.04 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.7

Radius: 10

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 2.3 AU - 2.3 AU

Year: 2366 Days

Day: 11.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 54,916,912 km

• M1: 124,465 km (0.067 R)
• M2: 521,049 km (0.08 R)
• M3: 1,067,381 km (0.117 R)
• M4: 1,383,930 km (0.091 R)
• M5: 2,004,611 km (0.095 R)
• M6: 2,816,778 km (0.063 R)
• M7: 4,006,081 km (0.105 R)
• M8: 5,796,469 km (0.109 R)
• M9: 6,153,110 km (0.101 R)
• M10: 6,660,396 km (0.107 R)
• M11: 7,758,894 km (0.116 R)
• M12: 8,129,747 km (0.087 R)
• M13: 8,512,418 km (0.075 R)
• M14: 9,075,056 km (0.057 R)
• M15: 9,983,414 km (0.089 R)
• M16: 10,459,883 km (0.119 R)
• M17: 10,989,759 km (0.095 R)
• M18: 11,657,264 km (0.092 R)
• M19: 12,857,937 km (0.031 R)
• M20: 13,777,515 km (0.081 R)
• M21: 14,139,243 km (0.04 R)
• M22: 15,796,638 km (0.082 R)
• M23: 17,632,652 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872

Radius: 13.1

Gravity: 5.08 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 4.66 AU - 5.3 AU

Year: 7538 Days

Day: 5.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 54,916,912 km

• M1: 163,211 km (0.085 R)
• M2: 942,616 km (0.085 R)
• M3: 1,689,259 km (0.083 R)
• M4: 2,162,736 km (0.071 R)
• M5: 2,705,477 km (0.107 R)
• M6: 3,338,576 km (0.088 R)
• M7: 5,022,749 km (0.08 R)
• M8: 6,580,511 km (0.106 R)
• M9: 7,255,497 km (0.091 R)
• M10: 7,730,769 km (0.113 R)
• M11: 9,940,031 km (0.062 R)
• M12: 10,477,536 km (0.114 R)
• M13: 11,934,170 km (0.076 R)
• M14: 15,182,239 km (0.112 R)
• M15: 18,029,685 km (0.118 R)
• M16: 18,536,672 km (0.118 R)
• M17: 19,053,234 km (0.102 R)
• M18: 21,296,154 km (0.108 R)
• M19: 22,026,641 km (0.085 R)
• M20: 30,482,062 km (0.082 R)
• M21: 32,676,812 km (0.086 R)
• M22: 33,539,992 km (0.117 R)
• M23: 37,496,108 km (0.061 R)
• M24: 42,641,527 km (0.049 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 29.1

Radius: 7.2

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 5.35 AU - 6.77 AU

Year: 10118 Days

Day: 17.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 54,916,912 km

• M1: 99,183 km (0.117 R)
• M2: 364,271 km (0.086 R)
• M3: 925,113 km (0.12 R)
• M4: 1,943,875 km (0.033 R)
• M5: 2,700,541 km (0.032 R)
• M6: 6,373,916 km (0.108 R)
• M7: 7,219,892 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 338.9

Radius: 3.4

Gravity: 29.32 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 8.1 AU - 9.32 AU

Year: 17435 Days

Day: 16.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 54,916,912 km

• M1: 42,336 km (0.085 R)
• M2: 154,684 km (0.073 R)
• M3: 331,359 km (0.078 R)
• M4: 494,571 km (0.094 R)
• M5: 603,029 km (0.116 R)
• M6: 1,098,497 km (0.053 R)
• M7: 1,568,833 km (0.08 R)
• M8: 1,840,353 km (0.074 R)
• M9: 1,978,731 km (0.086 R)
• M10: 2,237,386 km (0.114 R)
• M11: 2,497,387 km (0.05 R)
• M12: 2,776,985 km (0.113 R)
• M13: 3,222,787 km (0.074 R)
• M14: 4,653,242 km (0.056 R)
• M15: 10,312,080 km (0.05 R)
• M16: 11,601,315 km (0.045 R)
• M17: 12,194,022 km (0.118 R)
• M18: 12,436,669 km (0.098 R)
• M19: 15,251,802 km (0.109 R)
• M20: 16,620,623 km (0.092 R)
• M21: 22,099,046 km (0.11 R)
• M22: 36,552,445 km (0.094 R)
• M23: 42,772,425 km (0.109 R)
• M24: 47,687,164 km (0.057 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: 322 - 11,758 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit