🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286

Radius: 13.1

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.49 AU - 0.65 AU

Year: 287 Days

Day: 7.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 5,671,465 km

• M1: 182,809 km (0.096 R)
• M2: 657,632 km (0.105 R)
• M3: 1,301,651 km (0.11 R)
• M4: 1,720,376 km (0.094 R)
• M5: 2,153,013 km (0.112 R)
• M6: 2,842,210 km (0.07 R)
• M7: 3,348,449 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.4

Radius: 14.7

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.54 AU - 0.66 AU

Year: 310 Days

Day: 10 Hours

Environment

Temp: -157 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 5,671,465 km

• M1: 182,809 km (0.116 R)
• M2: 692,040 km (0.034 R)
• M3: 1,195,137 km (0.047 R)
• M4: 1,923,230 km (0.1 R)
• M5: 2,731,508 km (0.108 R)
• M6: 3,434,468 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.4

Radius: 10.6

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.63 AU - 0.67 AU

Year: 349 Days

Day: 9.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 5,671,465 km

• M1: 131,796 km (0.104 R)
• M2: 479,461 km (0.077 R)
• M3: 1,070,223 km (0.118 R)
• M4: 1,544,448 km (0.1 R)
• M5: 1,901,239 km (0.105 R)
• M6: 2,254,739 km (0.109 R)
• M7: 2,596,720 km (0.097 R)
• M8: 3,024,570 km (0.095 R)
• M9: 3,544,722 km (0.112 R)
• M10: 4,265,185 km (0.061 R)
• M11: 4,667,454 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794.9

Radius: 13.3

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.65 AU - 0.75 AU

Year: 391 Days

Day: 14.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 5,671,465 km

• M1: 169,046 km (0.109 R)
• M2: 648,507 km (0.108 R)
• M3: 1,138,739 km (0.111 R)
• M4: 1,628,223 km (0.05 R)
• M5: 2,172,909 km (0.098 R)
• M6: 2,869,437 km (0.115 R)
• M7: 3,328,253 km (0.077 R)
• M8: 3,748,175 km (0.082 R)
• M9: 4,217,164 km (0.066 R)
• M10: 5,133,301 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442.2

Radius: 11

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.6 AU - 1 AU

Year: 477 Days

Day: 10.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 5,671,465 km

• M1: 136,882 km (0.111 R)
• M2: 571,165 km (0.117 R)
• M3: 1,222,514 km (0.061 R)
• M4: 1,595,910 km (0.074 R)
• M5: 2,450,712 km (0.101 R)
• M6: 3,120,163 km (0.107 R)
• M7: 4,274,011 km (0.114 R)
• M8: 4,808,076 km (0.119 R)
• M9: 5,198,825 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.6

Radius: 10.1

Gravity: 7.86 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.78 AU - 1.16 AU

Year: 637 Days

Day: 12.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 5,671,465 km

• M1: 125,662 km (0.088 R)
• M2: 489,484 km (0.095 R)
• M3: 843,582 km (0.045 R)
• M4: 1,202,617 km (0.06 R)
• M5: 1,705,416 km (0.109 R)
• M6: 2,034,232 km (0.102 R)
• M7: 2,479,286 km (0.086 R)
• M8: 3,061,371 km (0.061 R)
• M9: 4,201,755 km (0.062 R)
• M10: 5,048,330 km (0.116 R)
• M11: 5,420,978 km (0.069 R)
• M12: 6,734,447 km (0.11 R)
• M13: 7,915,223 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713.5

Radius: 13

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.88 AU - 1.4 AU

Year: 812 Days

Day: 11.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 5,671,465 km

• M1: 161,715 km (0.104 R)
• M2: 660,475 km (0.115 R)
• M3: 1,072,916 km (0.106 R)
• M4: 1,962,126 km (0.075 R)
• M5: 2,452,507 km (0.106 R)
• M6: 2,876,767 km (0.038 R)
• M7: 3,787,220 km (0.1 R)
• M8: 4,776,959 km (0.032 R)
• M9: 5,407,963 km (0.105 R)
• M10: 5,952,350 km (0.065 R)
• M11: 7,335,083 km (0.034 R)
• M12: 7,881,265 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.5

Radius: 8.8

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.34 AU - 3.28 AU

Year: 3141 Days

Day: 7.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 5,671,465 km

• M1: 138,228 km (0.112 R)
• M2: 891,454 km (0.102 R)
• M3: 1,217,278 km (0.103 R)
• M4: 2,893,672 km (0.119 R)
• M5: 3,873,986 km (0.089 R)
• M6: 4,893,197 km (0.072 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: 172 - 19,044 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit