🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.6

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.52 AU - 0.6 AU

Year: 271 Days

Day: 21.6 Hours

Environment

Temp: -120 °C

Axial Tilt: 29.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.6

Radius: 10.8

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.59 AU - 0.83 AU

Year: 386 Days

Day: 8.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,167,808 km

• M1: 134,339 km (0.066 R)
• M2: 499,058 km (0.094 R)
• M3: 906,862 km (0.118 R)
• M4: 1,247,497 km (0.102 R)
• M5: 2,347,639 km (0.105 R)
• M6: 2,886,192 km (0.088 R)
• M7: 3,731,270 km (0.106 R)
• M8: 4,133,389 km (0.096 R)
• M9: 4,536,555 km (0.078 R)
• M10: 4,921,920 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.5

Radius: 8.6

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.99 AU - 1.11 AU

Year: 695 Days

Day: 13.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,167,808 km

• M1: 107,112 km (0.119 R)
• M2: 398,828 km (0.09 R)
• M3: 780,302 km (0.075 R)
• M4: 1,080,845 km (0.119 R)
• M5: 1,368,970 km (0.04 R)
• M6: 1,721,273 km (0.116 R)
• M7: 2,302,910 km (0.04 R)
• M8: 2,643,993 km (0.088 R)
• M9: 3,046,261 km (0.097 R)
• M10: 3,320,474 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.4

Radius: 13.8

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 1.9 AU - 2.84 AU

Year: 2356 Days

Day: 6.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,167,808 km

• M1: 171,589 km (0.086 R)
• M2: 601,982 km (0.113 R)
• M3: 1,038,957 km (0.099 R)
• M4: 1,494,184 km (0.12 R)
• M5: 2,018,075 km (0.116 R)
• M6: 2,503,969 km (0.031 R)
• M7: 2,948,873 km (0.116 R)
• M8: 3,614,135 km (0.047 R)
• M9: 4,262,492 km (0.057 R)
• M10: 4,778,306 km (0.097 R)
• M11: 7,384,300 km (0.034 R)
• M12: 7,955,016 km (0.038 R)
• M13: 8,402,164 km (0.084 R)
• M14: 8,929,347 km (0.114 R)
• M15: 11,263,074 km (0.076 R)
• M16: 12,254,609 km (0.048 R)
• M17: 15,396,463 km (0.072 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 582.9

Radius: 5.3

Gravity: 20.75 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 7.37 AU - 8.27 AU

Year: 14120 Days

Day: 20.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,167,808 km

• M1: 65,973 km (0.055 R)
• M2: 451,486 km (0.106 R)
• M3: 625,469 km (0.098 R)
• M4: 1,516,922 km (0.043 R)
• M5: 1,800,111 km (0.1 R)
• M6: 2,350,033 km (0.03 R)
• M7: 3,005,421 km (0.092 R)
• M8: 3,223,984 km (0.07 R)
• M9: 3,401,257 km (0.098 R)
• M10: 5,165,914 km (0.071 R)
• M11: 5,338,998 km (0.089 R)
• M12: 5,918,989 km (0.108 R)
• M13: 6,540,120 km (0.076 R)
• M14: 12,836,694 km (0.096 R)
• M15: 14,276,125 km (0.092 R)
• M16: 17,627,416 km (0.072 R)
• M17: 19,318,022 km (0.056 R)
• M18: 21,736,271 km (0.06 R)
• M19: 44,821,018 km (0.091 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 216 - 14,564 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit