🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550

Radius: 13.8

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.66 AU - 0.82 AU

Year: 439 Days

Day: 7.6 Hours

Environment

Temp: -155 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 20,811,227 km

• M1: 171,738 km (0.102 R)
• M2: 601,982 km (0.065 R)
• M3: 1,130,960 km (0.086 R)
• M4: 1,647,970 km (0.06 R)
• M5: 2,625,891 km (0.027 R)
• M6: 3,124,800 km (0.106 R)
• M7: 3,723,940 km (0.066 R)
• M8: 4,236,163 km (0.11 R)
• M9: 4,824,531 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.5

Radius: 12.6

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.62 AU - 2.48 AU

Year: 2026 Days

Day: 15 Hours

Environment

Temp: -198 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 20,811,227 km

• M1: 156,629 km (0.059 R)
• M2: 595,998 km (0.055 R)
• M3: 998,117 km (0.03 R)
• M4: 1,545,645 km (0.105 R)
• M5: 2,570,091 km (0.103 R)
• M6: 3,185,088 km (0.031 R)
• M7: 4,187,544 km (0.106 R)
• M8: 4,711,884 km (0.116 R)
• M9: 7,621,862 km (0.066 R)
• M10: 8,080,529 km (0.078 R)
• M11: 8,865,319 km (0.118 R)
• M12: 9,308,578 km (0.116 R)
• M13: 10,343,047 km (0.091 R)
• M14: 11,713,962 km (0.039 R)
• M15: 12,287,371 km (0.057 R)
• M16: 13,243,451 km (0.106 R)
• M17: 13,739,966 km (0.099 R)
• M18: 14,682,283 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.7

Radius: 12.3

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 2.26 AU - 2.92 AU

Year: 2877 Days

Day: 8.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 20,811,227 km

• M1: 153,039 km (0.094 R)
• M2: 606,021 km (0.109 R)
• M3: 1,023,698 km (0.11 R)
• M4: 1,733,391 km (0.105 R)
• M5: 2,188,018 km (0.116 R)
• M6: 3,068,103 km (0.114 R)
• M7: 3,564,020 km (0.093 R)
• M8: 4,428,695 km (0.11 R)
• M9: 6,032,085 km (0.099 R)
• M10: 6,599,809 km (0.105 R)
• M11: 7,518,191 km (0.041 R)
• M12: 8,808,023 km (0.101 R)
• M13: 9,608,522 km (0.066 R)
• M14: 10,062,102 km (0.113 R)
• M15: 12,465,991 km (0.112 R)
• M16: 12,922,114 km (0.108 R)
• M17: 13,389,159 km (0.101 R)
• M18: 13,955,686 km (0.091 R)
• M19: 14,766,656 km (0.106 R)
• M20: 16,531,761 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.3

Radius: 9.2

Gravity: 7.47 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.22 AU - 3.08 AU

Year: 2978 Days

Day: 8.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 20,811,227 km

• M1: 114,442 km (0.059 R)
• M2: 521,797 km (0.083 R)
• M3: 1,268,141 km (0.074 R)
• M4: 1,806,245 km (0.108 R)
• M5: 2,208,813 km (0.106 R)
• M6: 2,908,631 km (0.048 R)
• M7: 3,266,021 km (0.118 R)
• M8: 5,240,413 km (0.075 R)
• M9: 6,010,693 km (0.049 R)
• M10: 7,807,363 km (0.107 R)
• M11: 8,880,878 km (0.067 R)
• M12: 9,199,820 km (0.072 R)
• M13: 9,636,945 km (0.084 R)
• M14: 10,357,558 km (0.1 R)
• M15: 11,154,316 km (0.116 R)
• M16: 12,381,468 km (0.075 R)
• M17: 13,187,052 km (0.105 R)
• M18: 13,696,433 km (0.113 R)
• M19: 14,803,607 km (0.114 R)
• M20: 16,230,771 km (0.07 R)
• M21: 17,915,392 km (0.066 R)
• M22: 20,687,291 km (0.04 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 415 - 19,356 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit