🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.3

Radius: 13.7

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.69 AU - 0.81 AU

Year: 426 Days

Day: 5.9 Hours

Environment

Temp: -146 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 29,422,404 km

• M1: 170,392 km (0.08 R)
• M2: 851,361 km (0.034 R)
• M3: 1,436,588 km (0.077 R)
• M4: 2,606,294 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.7

Radius: 9.1

Gravity: 9.03 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.65 AU - 0.99 AU

Year: 487 Days

Day: 11.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 29,422,404 km

• M1: 113,246 km (0.093 R)
• M2: 435,629 km (0.113 R)
• M3: 951,293 km (0.088 R)
• M4: 1,323,941 km (0.037 R)
• M5: 1,769,593 km (0.092 R)
• M6: 2,266,258 km (0.104 R)
• M7: 3,089,794 km (0.104 R)
• M8: 3,376,125 km (0.111 R)
• M9: 3,866,058 km (0.089 R)
• M10: 5,020,505 km (0.1 R)
• M11: 5,503,706 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.6

Radius: 15

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.93 AU - 1.35 AU

Year: 798 Days

Day: 6 Hours

Environment

Temp: -169 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,422,404 km

• M1: 186,698 km (0.115 R)
• M2: 757,713 km (0.111 R)
• M3: 1,433,447 km (0.101 R)
• M4: 2,341,207 km (0.107 R)
• M5: 2,907,584 km (0.085 R)
• M6: 3,398,864 km (0.039 R)
• M7: 4,386,658 km (0.118 R)
• M8: 5,312,520 km (0.09 R)
• M9: 5,892,361 km (0.098 R)
• M10: 6,863,700 km (0.048 R)
• M11: 7,988,676 km (0.105 R)
• M12: 8,621,624 km (0.071 R)
• M13: 9,206,253 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.8

Radius: 9.2

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.44 AU - 1.96 AU

Year: 1454 Days

Day: 6.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 29,422,404 km

• M1: 114,592 km (0.106 R)
• M2: 731,384 km (0.058 R)
• M3: 1,255,575 km (0.086 R)
• M4: 1,840,951 km (0.094 R)
• M5: 3,200,048 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199

Radius: 8.2

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.72 AU - 1.82 AU

Year: 1545 Days

Day: 10.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 29,422,404 km

• M1: 102,026 km (0.1 R)
• M2: 387,159 km (0.027 R)
• M3: 762,052 km (0.068 R)
• M4: 2,015,383 km (0.105 R)
• M5: 2,820,219 km (0.055 R)
• M6: 3,574,641 km (0.088 R)
• M7: 3,869,199 km (0.06 R)
• M8: 4,179,914 km (0.057 R)
• M9: 4,729,237 km (0.081 R)
• M10: 5,554,868 km (0.068 R)
• M11: 6,053,328 km (0.047 R)
• M12: 6,473,249 km (0.093 R)
• M13: 7,704,889 km (0.066 R)
• M14: 8,478,759 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.7

Radius: 9.6

Gravity: 7.92 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2.4 AU - 3.66 AU

Year: 3460 Days

Day: 7.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 29,422,404 km

• M1: 119,529 km (0.114 R)
• M2: 481,107 km (0.073 R)
• M3: 780,602 km (0.101 R)
• M4: 1,679,087 km (0.104 R)
• M5: 2,206,569 km (0.095 R)
• M6: 2,533,141 km (0.046 R)
• M7: 3,138,414 km (0.05 R)
• M8: 3,613,237 km (0.053 R)
• M9: 5,409,459 km (0.12 R)
• M10: 6,896,761 km (0.118 R)
• M11: 7,802,127 km (0.08 R)
• M12: 10,207,063 km (0.115 R)
• M13: 10,575,073 km (0.115 R)
• M14: 11,165,237 km (0.094 R)
• M15: 11,468,472 km (0.119 R)
• M16: 13,551,024 km (0.109 R)
• M17: 15,019,626 km (0.067 R)
• M18: 15,549,801 km (0.116 R)
• M19: 16,760,197 km (0.094 R)
• M20: 17,388,509 km (0.041 R)
• M21: 18,874,763 km (0.096 R)
• M22: 19,181,888 km (0.112 R)
• M23: 19,554,835 km (0.056 R)
• M24: 20,059,578 km (0.091 R)
• M25: 20,702,700 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 33.3

Radius: 6.1

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 8.07 AU - 12.61 AU

Year: 21812 Days

Day: 18.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 29,422,404 km

• M1: 77,492 km (0.037 R)
• M2: 791,522 km (0.079 R)
• M3: 1,083,238 km (0.059 R)
• M4: 1,623,436 km (0.087 R)
• M5: 2,767,860 km (0.09 R)
• M6: 3,613,686 km (0.11 R)
• M7: 4,444,852 km (0.117 R)
• M8: 6,639,154 km (0.099 R)
• M9: 9,927,614 km (0.057 R)
• M10: 10,623,693 km (0.039 R)
• M11: 10,938,447 km (0.092 R)
• M12: 12,907,454 km (0.11 R)
• M13: 13,111,505 km (0.031 R)
• M14: 13,842,291 km (0.076 R)
• M15: 20,279,936 km (0.075 R)
• M16: 20,764,334 km (0.072 R)
• M17: 22,927,669 km (0.034 R)
• M18: 27,696,550 km (0.106 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 507 - 19,334 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit