🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.3

Radius: 14.9

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.84 AU - 1.14 AU

Year: 680 Days

Day: 6.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 51,432,958 km

• M1: 186,549 km (0.053 R)
• M2: 699,968 km (0.115 R)
• M3: 1,397,244 km (0.085 R)
• M4: 2,153,910 km (0.064 R)
• M5: 3,022,775 km (0.059 R)
• M6: 3,794,849 km (0.057 R)
• M7: 4,482,401 km (0.083 R)
• M8: 5,522,405 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.1

Radius: 13.5

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.08 AU - 1.72 AU

Year: 1143 Days

Day: 10.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,432,958 km

• M1: 167,998 km (0.078 R)
• M2: 607,517 km (0.09 R)
• M3: 1,032,225 km (0.098 R)
• M4: 1,710,502 km (0.099 R)
• M5: 2,412,116 km (0.098 R)
• M6: 3,326,907 km (0.11 R)
• M7: 3,774,055 km (0.105 R)
• M8: 4,773,518 km (0.089 R)
• M9: 7,413,322 km (0.039 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.2

Radius: 10.7

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.36 AU - 1.82 AU

Year: 1384 Days

Day: 6.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,432,958 km

• M1: 133,441 km (0.097 R)
• M2: 1,030,430 km (0.088 R)
• M3: 1,521,859 km (0.119 R)
• M4: 2,147,029 km (0.119 R)
• M5: 2,854,178 km (0.093 R)
• M6: 3,518,243 km (0.076 R)
• M7: 4,251,571 km (0.112 R)
• M8: 4,712,333 km (0.096 R)
• M9: 5,223,808 km (0.115 R)
• M10: 5,943,823 km (0.071 R)
• M11: 6,603,699 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.2

Radius: 12.8

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.56 AU - 1.64 AU

Year: 1397 Days

Day: 10.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 51,432,958 km

• M1: 159,621 km (0.087 R)
• M2: 986,598 km (0.065 R)
• M3: 1,541,157 km (0.072 R)
• M4: 2,166,626 km (0.032 R)
• M5: 2,614,223 km (0.077 R)
• M6: 3,029,058 km (0.051 R)
• M7: 3,820,281 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.5

Radius: 9.9

Gravity: 9.95 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.94 AU - 2.26 AU

Year: 2101 Days

Day: 5.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 51,432,958 km

• M1: 123,418 km (0.093 R)
• M2: 543,190 km (0.066 R)
• M3: 854,204 km (0.113 R)
• M4: 1,447,210 km (0.082 R)
• M5: 1,930,112 km (0.104 R)
• M6: 2,337,018 km (0.061 R)
• M7: 2,941,842 km (0.03 R)
• M8: 4,879,883 km (0.116 R)
• M9: 5,566,387 km (0.116 R)
• M10: 5,920,186 km (0.08 R)
• M11: 6,262,017 km (0.088 R)
• M12: 6,701,087 km (0.072 R)
• M13: 7,014,644 km (0.118 R)
• M14: 7,549,157 km (0.084 R)
• M15: 7,920,459 km (0.115 R)
• M16: 8,500,151 km (0.111 R)
• M17: 10,638,802 km (0.119 R)
• M18: 11,225,076 km (0.116 R)
• M19: 11,668,634 km (0.075 R)
• M20: 13,380,632 km (0.075 R)
• M21: 16,717,412 km (0.12 R)
• M22: 17,617,543 km (0.103 R)
• M23: 18,661,437 km (0.06 R)
• M24: 19,056,375 km (0.099 R)

Asteroid Belt

Center: 4.49 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 6.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 547.8

Radius: 6.9

Gravity: 11.51 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 5.77 AU - 7.97 AU

Year: 12429 Days

Day: 24.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 51,432,958 km

• M1: 87,964 km (0.087 R)
• M2: 743,651 km (0.073 R)
• M3: 1,225,057 km (0.053 R)
• M4: 1,472,193 km (0.1 R)
• M5: 2,481,529 km (0.034 R)
• M6: 3,155,169 km (0.108 R)
• M7: 3,755,804 km (0.113 R)
• M8: 4,055,449 km (0.12 R)
• M9: 4,671,792 km (0.061 R)
• M10: 5,018,859 km (0.104 R)
• M11: 5,349,021 km (0.072 R)
• M12: 7,515,947 km (0.052 R)
• M13: 8,863,823 km (0.115 R)
• M14: 12,205,241 km (0.06 R)
• M15: 12,621,722 km (0.104 R)
• M16: 13,420,425 km (0.108 R)
• M17: 15,529,157 km (0.105 R)
• M18: 16,953,777 km (0.045 R)
• M19: 17,174,733 km (0.064 R)
• M20: 22,625,930 km (0.089 R)
• M21: 22,894,009 km (0.118 R)
• M22: 28,500,638 km (0.066 R)
• M23: 29,023,034 km (0.118 R)
• M24: 30,086,825 km (0.106 R)
• M25: 35,556,721 km (0.097 R)
• M26: 44,109,531 km (0.079 R)
• M27: 47,531,133 km (0.069 R)
• M28: 48,265,509 km (0.043 R)
• M29: 49,606,504 km (0.063 R)
• M30: 50,972,183 km (0.068 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 416 - 17,915 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit