🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.12

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.66 AU - 0.94 AU

Year: 302 Days

Day: 32.8 Hours

Environment

Temp: -11 °C

Axial Tilt: 6.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 19,802,944 km

• M1: 31,864 km (0.06 R)
• M2: 334,351 km (0.08 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.92

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.98 AU - 1.02 AU

Year: 422 Days

Day: 26.5 Hours

Environment

Temp: -51 °C

Axial Tilt: 10.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 19,802,944 km

• M1: 80,334 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.6

Radius: 13.5

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 3.55 AU - 4.65 AU

Year: 3501 Days

Day: 9.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 19,802,944 km

• M1: 170,990 km (0.119 R)
• M2: 829,221 km (0.112 R)
• M3: 1,255,725 km (0.104 R)
• M4: 1,846,038 km (0.106 R)
• M5: 4,741,654 km (0.083 R)
• M6: 5,532,129 km (0.081 R)
• M7: 6,168,070 km (0.103 R)
• M8: 6,628,083 km (0.118 R)
• M9: 7,140,157 km (0.077 R)
• M10: 7,740,044 km (0.041 R)
• M11: 8,179,862 km (0.065 R)
• M12: 11,499,738 km (0.111 R)
• M13: 12,666,751 km (0.067 R)
• M14: 13,637,940 km (0.097 R)
• M15: 15,187,176 km (0.071 R)
• M16: 15,828,652 km (0.118 R)
• M17: 16,436,767 km (0.114 R)
• M18: 17,484,999 km (0.11 R)
• M19: 18,577,213 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 8.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.5

Radius: 9.5

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 8.32 AU - 9.64 AU

Year: 11349 Days

Day: 8.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 19,802,944 km

• M1: 118,182 km (0.086 R)
• M2: 523,144 km (0.073 R)
• M3: 845,078 km (0.05 R)
• M4: 1,267,992 km (0.103 R)
• M5: 3,519,888 km (0.117 R)
• M6: 4,099,580 km (0.117 R)
• M7: 7,650,734 km (0.116 R)
• M8: 9,971,745 km (0.115 R)
• M9: 10,696,098 km (0.095 R)
• M10: 11,051,393 km (0.047 R)
• M11: 14,805,851 km (0.046 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: 389 - 17,032 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit