🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.63 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.8

Radius: 8.6

Gravity: 6.96 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.2 AU - 1.3 AU

Year: 965 Days

Day: 14.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,672,032 km

• M1: 107,112 km (0.08 R)
• M2: 395,537 km (0.082 R)
• M3: 673,789 km (0.115 R)
• M4: 1,023,698 km (0.036 R)
• M5: 2,224,520 km (0.07 R)
• M6: 3,587,955 km (0.091 R)
• M7: 4,556,751 km (0.114 R)
• M8: 5,287,088 km (0.076 R)
• M9: 8,685,952 km (0.035 R)
• M10: 9,085,079 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.2

Radius: 9.2

Gravity: 8.45 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.29 AU - 1.45 AU

Year: 1107 Days

Day: 9.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,672,032 km

• M1: 115,639 km (0.098 R)
• M2: 441,763 km (0.067 R)
• M3: 728,093 km (0.105 R)
• M4: 1,105,379 km (0.063 R)
• M5: 2,191,010 km (0.037 R)
• M6: 2,862,555 km (0.103 R)
• M7: 3,618,623 km (0.106 R)
• M8: 4,832,909 km (0.065 R)
• M9: 5,668,563 km (0.051 R)
• M10: 7,073,885 km (0.088 R)
• M11: 8,670,244 km (0.06 R)
• M12: 9,717,878 km (0.115 R)
• M13: 10,461,977 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.1

Radius: 9.3

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.71 AU - 2.15 AU

Year: 1851 Days

Day: 14.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,672,032 km

• M1: 115,938 km (0.116 R)
• M2: 532,269 km (0.052 R)
• M3: 948,750 km (0.097 R)
• M4: 1,568,534 km (0.107 R)
• M5: 1,958,236 km (0.077 R)
• M6: 2,692,014 km (0.063 R)
• M7: 3,270,957 km (0.068 R)
• M8: 3,632,685 km (0.026 R)
• M9: 3,948,486 km (0.115 R)
• M10: 5,136,892 km (0.111 R)
• M11: 5,581,646 km (0.096 R)
• M12: 5,955,790 km (0.081 R)
• M13: 6,296,874 km (0.084 R)
• M14: 6,859,212 km (0.119 R)
• M15: 7,316,383 km (0.086 R)
• M16: 7,909,090 km (0.102 R)
• M17: 9,190,396 km (0.094 R)
• M18: 10,782,416 km (0.094 R)
• M19: 11,587,552 km (0.109 R)
• M20: 13,944,766 km (0.11 R)
• M21: 14,547,795 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286

Radius: 11.6

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.54 AU - 2.4 AU

Year: 1909 Days

Day: 8.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 36,672,032 km

• M1: 146,157 km (0.083 R)
• M2: 510,877 km (0.055 R)
• M3: 1,301,202 km (0.06 R)
• M4: 1,784,254 km (0.091 R)
• M5: 2,640,402 km (0.095 R)
• M6: 3,998,153 km (0.092 R)
• M7: 4,783,542 km (0.063 R)
• M8: 5,437,733 km (0.081 R)
• M9: 6,128,277 km (0.09 R)
• M10: 6,660,097 km (0.067 R)
• M11: 7,323,564 km (0.068 R)
• M12: 8,276,053 km (0.094 R)
• M13: 10,818,320 km (0.096 R)
• M14: 11,287,608 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.9

Radius: 10.2

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 2.16 AU - 2.64 AU

Year: 2566 Days

Day: 5.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,672,032 km

• M1: 126,859 km (0.117 R)
• M2: 536,308 km (0.112 R)
• M3: 1,504,356 km (0.116 R)
• M4: 1,938,639 km (0.089 R)
• M5: 2,859,563 km (0.116 R)
• M6: 3,598,427 km (0.119 R)
• M7: 4,013,262 km (0.115 R)
• M8: 5,321,346 km (0.051 R)
• M9: 7,051,296 km (0.099 R)
• M10: 7,815,890 km (0.097 R)
• M11: 9,096,747 km (0.051 R)
• M12: 10,002,712 km (0.117 R)
• M13: 10,477,835 km (0.091 R)
• M14: 11,473,109 km (0.075 R)
• M15: 11,880,913 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.1

Radius: 8.1

Gravity: 14.05 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 2.4 AU - 3.02 AU

Year: 3079 Days

Day: 11.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 36,672,032 km

• M1: 101,128 km (0.08 R)
• M2: 628,311 km (0.112 R)
• M3: 1,045,390 km (0.061 R)
• M4: 1,348,026 km (0.1 R)
• M5: 1,757,177 km (0.115 R)
• M6: 2,161,988 km (0.091 R)
• M7: 2,455,350 km (0.117 R)
• M8: 3,214,409 km (0.098 R)
• M9: 3,578,531 km (0.069 R)
• M10: 4,121,272 km (0.096 R)
• M11: 5,011,678 km (0.028 R)
• M12: 5,449,402 km (0.027 R)
• M13: 5,912,257 km (0.093 R)
• M14: 6,460,234 km (0.057 R)
• M15: 9,108,715 km (0.117 R)
• M16: 9,373,653 km (0.103 R)
• M17: 9,958,730 km (0.071 R)
• M18: 10,818,469 km (0.111 R)
• M19: 11,418,506 km (0.117 R)
• M20: 13,498,216 km (0.094 R)
• M21: 13,892,705 km (0.106 R)
• M22: 14,396,551 km (0.114 R)
• M23: 15,709,721 km (0.067 R)
• M24: 16,591,002 km (0.12 R)
• M25: 17,621,432 km (0.082 R)
• M26: 22,239,967 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.9

Radius: 10

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 2.57 AU - 3.89 AU

Year: 4007 Days

Day: 10.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,672,032 km

• M1: 148,551 km (0.095 R)
• M2: 522,246 km (0.054 R)
• M3: 1,249,142 km (0.059 R)
• M4: 2,183,531 km (0.085 R)
• M5: 4,524,438 km (0.059 R)
• M6: 8,500,899 km (0.085 R)
• M7: 8,824,330 km (0.097 R)
• M8: 9,155,838 km (0.12 R)
• M9: 11,597,276 km (0.057 R)
• M10: 13,991,590 km (0.112 R)
• M11: 16,447,388 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 112.6

Radius: 7.3

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 7.9 AU - 8.7 AU

Year: 16505 Days

Day: 17.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 36,672,032 km

• M1: 91,105 km (0.103 R)
• M2: 330,013 km (0.102 R)
• M3: 559,496 km (0.087 R)
• M4: 794,963 km (0.086 R)
• M5: 1,088,325 km (0.039 R)
• M6: 1,453,792 km (0.115 R)
• M7: 1,755,232 km (0.118 R)
• M8: 3,081,118 km (0.085 R)
• M9: 3,468,875 km (0.094 R)
• M10: 3,864,562 km (0.09 R)
• M11: 5,029,480 km (0.115 R)
• M12: 5,414,545 km (0.069 R)
• M13: 5,723,914 km (0.103 R)
• M14: 6,937,003 km (0.111 R)
• M15: 8,724,997 km (0.106 R)
• M16: 9,952,597 km (0.114 R)
• M17: 10,370,573 km (0.077 R)
• M18: 11,093,131 km (0.045 R)
• M19: 19,820,970 km (0.116 R)
• M20: 21,618,089 km (0.051 R)
• M21: 22,635,654 km (0.092 R)
• M22: 27,657,355 km (0.119 R)
• M23: 35,693,154 km (0.052 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 219 - 16,826 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit