🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.48 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.82 AU - 1.08 AU

Year: 356 Days

Day: 43.5 Hours

Environment

Temp: 24 °C

Axial Tilt: 6.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 48,830,546 km

• M1: 62,083 km (0.109 R)
• M2: 648,507 km (0.061 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.52 AU - 2.02 AU

Year: 907 Days

Day: 16.7 Hours

Environment

Temp: -79 °C

Axial Tilt: 48.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.65 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 9.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.4

Radius: 10.8

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 9.17 AU - 9.87 AU

Year: 11309 Days

Day: 9.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 48,830,546 km

• M1: 134,638 km (0.078 R)
• M2: 501,751 km (0.081 R)
• M3: 845,228 km (0.1 R)
• M4: 1,458,729 km (0.079 R)
• M5: 1,980,377 km (0.079 R)
• M6: 2,939,897 km (0.094 R)
• M7: 3,329,151 km (0.106 R)
• M8: 9,358,544 km (0.117 R)
• M9: 9,751,687 km (0.096 R)
• M10: 10,258,674 km (0.095 R)
• M11: 11,436,159 km (0.094 R)
• M12: 13,741,312 km (0.083 R)
• M13: 15,713,611 km (0.103 R)
• M14: 17,569,971 km (0.082 R)
• M15: 18,018,316 km (0.114 R)
• M16: 18,782,461 km (0.118 R)
• M17: 25,407,702 km (0.067 R)
• M18: 31,539,569 km (0.044 R)
• M19: 37,103,862 km (0.084 R)
• M20: 38,590,865 km (0.089 R)
• M21: 42,884,025 km (0.034 R)
• M22: 46,483,200 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 10.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.6

Radius: 9.3

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 10.06 AU - 10.8 AU

Year: 12969 Days

Day: 6.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 48,830,546 km

• M1: 115,639 km (0.105 R)
• M2: 455,077 km (0.12 R)
• M3: 840,890 km (0.089 R)
• M4: 1,328,579 km (0.057 R)
• M5: 3,005,421 km (0.069 R)
• M6: 3,327,954 km (0.07 R)
• M7: 3,961,800 km (0.092 R)
• M8: 6,205,020 km (0.085 R)
• M9: 7,124,599 km (0.075 R)
• M10: 7,575,337 km (0.111 R)
• M11: 8,132,439 km (0.1 R)
• M12: 9,522,503 km (0.063 R)
• M13: 11,118,712 km (0.112 R)
• M14: 15,911,080 km (0.073 R)
• M15: 17,404,366 km (0.088 R)
• M16: 19,144,638 km (0.039 R)
• M17: 22,355,607 km (0.068 R)
• M18: 27,172,508 km (0.089 R)
• M19: 35,747,309 km (0.1 R)
• M20: 41,488,127 km (0.107 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 272 - 15,734 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit