🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.53 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.3

Radius: 8.5

Gravity: 7.52 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.82 AU - 1.3 AU

Year: 753 Days

Day: 7.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 23,854,818 km

• M1: 106,065 km (0.105 R)
• M2: 383,719 km (0.035 R)
• M3: 655,837 km (0.12 R)
• M4: 969,245 km (0.115 R)
• M5: 1,301,352 km (0.074 R)
• M6: 1,676,992 km (0.103 R)
• M7: 2,517,882 km (0.101 R)
• M8: 2,865,098 km (0.045 R)
• M9: 4,014,309 km (0.11 R)
• M10: 4,348,212 km (0.088 R)
• M11: 5,481,416 km (0.078 R)
• M12: 5,855,111 km (0.081 R)
• M13: 6,205,768 km (0.116 R)
• M14: 6,570,488 km (0.096 R)
• M15: 7,567,857 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 465.2

Radius: 14.1

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.08 AU - 1.12 AU

Year: 796 Days

Day: 7.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 23,854,818 km

• M1: 175,329 km (0.048 R)
• M2: 752,328 km (0.055 R)
• M3: 1,303,895 km (0.097 R)
• M4: 2,108,881 km (0.092 R)
• M5: 2,857,918 km (0.117 R)
• M6: 3,588,255 km (0.114 R)
• M7: 4,211,629 km (0.116 R)
• M8: 5,459,425 km (0.114 R)
• M9: 5,939,035 km (0.114 R)
• M10: 7,068,499 km (0.12 R)
• M11: 7,594,635 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.1

Radius: 9.5

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.45 AU - 1.59 AU

Year: 1294 Days

Day: 6.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 23,854,818 km

• M1: 118,482 km (0.052 R)
• M2: 511,924 km (0.077 R)
• M3: 837,598 km (0.111 R)
• M4: 1,178,831 km (0.09 R)
• M5: 2,260,125 km (0.115 R)
• M6: 2,856,871 km (0.063 R)
• M7: 3,155,617 km (0.112 R)
• M8: 4,425,404 km (0.094 R)
• M9: 4,778,006 km (0.114 R)
• M10: 5,449,252 km (0.115 R)
• M11: 6,726,967 km (0.086 R)
• M12: 7,458,202 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.5

Radius: 11.9

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.72 AU - 1.8 AU

Year: 1612 Days

Day: 11.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 23,854,818 km

• M1: 148,102 km (0.103 R)
• M2: 562,488 km (0.064 R)
• M3: 993,031 km (0.045 R)
• M4: 1,484,011 km (0.048 R)
• M5: 2,813,038 km (0.079 R)
• M6: 3,496,701 km (0.09 R)
• M7: 4,307,222 km (0.082 R)
• M8: 8,271,416 km (0.109 R)
• M9: 10,729,458 km (0.117 R)
• M10: 11,376,469 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.1

Radius: 11.1

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.47 AU - 3.15 AU

Year: 3251 Days

Day: 11.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 23,854,818 km

• M1: 215,720 km (0.067 R)
• M2: 2,418,848 km (0.054 R)
• M3: 2,818,125 km (0.088 R)
• M4: 4,068,464 km (0.118 R)
• M5: 6,846,646 km (0.104 R)
• M6: 7,737,052 km (0.097 R)
• M7: 8,313,154 km (0.076 R)
• M8: 9,104,826 km (0.057 R)
• M9: 12,008,221 km (0.099 R)
• M10: 12,702,654 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.1

Radius: 9.3

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.76 AU - 4.54 AU

Year: 4813 Days

Day: 11.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 23,854,818 km

• M1: 129,552 km (0.056 R)
• M2: 422,764 km (0.09 R)
• M3: 789,727 km (0.102 R)
• M4: 1,305,989 km (0.047 R)
• M5: 1,887,327 km (0.101 R)
• M6: 2,258,629 km (0.08 R)
• M7: 2,724,626 km (0.08 R)
• M8: 3,218,748 km (0.044 R)
• M9: 3,889,694 km (0.074 R)
• M10: 5,138,836 km (0.085 R)
• M11: 6,523,365 km (0.084 R)
• M12: 9,383,078 km (0.041 R)
• M13: 9,675,242 km (0.083 R)
• M14: 11,517,091 km (0.111 R)
• M15: 11,979,797 km (0.095 R)
• M16: 13,123,024 km (0.063 R)
• M17: 13,535,167 km (0.101 R)
• M18: 14,873,020 km (0.099 R)
• M19: 15,932,772 km (0.086 R)
• M20: 17,042,040 km (0.11 R)
• M21: 17,587,922 km (0.114 R)
• M22: 18,371,815 km (0.119 R)
• M23: 19,062,209 km (0.117 R)
• M24: 19,709,968 km (0.067 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 253.5

Radius: 4.1

Gravity: 15.08 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 5.86 AU - 8.84 AU

Year: 13754 Days

Day: 25 Hours

Environment

Temp: -239 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 23,854,818 km

• M1: 51,013 km (0.073 R)
• M2: 315,801 km (0.098 R)
• M3: 964,308 km (0.064 R)
• M4: 1,175,989 km (0.117 R)
• M5: 1,405,173 km (0.108 R)
• M6: 2,402,093 km (0.088 R)
• M7: 2,572,784 km (0.115 R)
• M8: 6,782,169 km (0.079 R)
• M9: 8,693,431 km (0.12 R)
• M10: 15,786,315 km (0.096 R)
• M11: 16,251,116 km (0.062 R)
• M12: 16,793,259 km (0.032 R)
• M13: 23,921,747 km (0.103 R)
• M14: 25,247,483 km (0.059 R)
• M15: 28,627,946 km (0.079 R)
• M16: 29,517,754 km (0.063 R)
• M17: 35,023,105 km (0.094 R)
• M18: 38,849,819 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 37.2

Radius: 5.7

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 6.11 AU - 9.51 AU

Year: 15066 Days

Day: 19.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 23,854,818 km

• M1: 71,807 km (0.094 R)
• M2: 379,530 km (0.091 R)
• M3: 879,785 km (0.036 R)
• M4: 1,081,892 km (0.098 R)
• M5: 1,449,454 km (0.051 R)
• M6: 2,493,198 km (0.057 R)
• M7: 3,133,926 km (0.108 R)
• M8: 4,881,528 km (0.049 R)
• M9: 5,989,749 km (0.107 R)
• M10: 7,450,722 km (0.113 R)
• M11: 9,022,397 km (0.081 R)
• M12: 13,041,194 km (0.088 R)
• M13: 16,058,883 km (0.094 R)
• M14: 16,334,292 km (0.089 R)
• M15: 17,525,241 km (0.113 R)
• M16: 19,951,868 km (0.099 R)
• M17: 20,591,698 km (0.073 R)
• M18: 21,377,536 km (0.097 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 194 - 17,263 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit