🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.97

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.52 AU - 0.82 AU

Year: 360 Days

Day: 15.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 31.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 29,100,466 km

• M1: 48,320 km (0.111 R)
• M2: 735,274 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 205.5

Radius: 12.1

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.82 AU - 0.94 AU

Year: 542 Days

Day: 11 Hours

Environment

Temp: -160 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 29,100,466 km

• M1: 150,645 km (0.12 R)
• M2: 534,064 km (0.053 R)
• M3: 1,030,729 km (0.086 R)
• M4: 1,445,115 km (0.098 R)
• M5: 1,885,831 km (0.074 R)
• M6: 2,340,758 km (0.059 R)
• M7: 4,205,047 km (0.047 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 360.9

Radius: 12.3

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.07 AU - 1.17 AU

Year: 778 Days

Day: 7 Hours

Environment

Temp: -155 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 29,100,466 km

• M1: 153,039 km (0.103 R)
• M2: 604,525 km (0.048 R)
• M3: 994,826 km (0.083 R)
• M4: 1,390,811 km (0.117 R)
• M5: 1,878,201 km (0.117 R)
• M6: 2,284,359 km (0.105 R)
• M7: 2,717,595 km (0.117 R)
• M8: 3,241,935 km (0.097 R)
• M9: 3,901,812 km (0.097 R)
• M10: 4,286,428 km (0.081 R)
• M11: 4,791,171 km (0.098 R)
• M12: 6,276,528 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480

Radius: 9.3

Gravity: 5.55 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.05 AU - 1.51 AU

Year: 950 Days

Day: 8.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 29,100,466 km

• M1: 115,639 km (0.107 R)
• M2: 410,497 km (0.093 R)
• M3: 727,494 km (0.084 R)
• M4: 1,119,890 km (0.108 R)
• M5: 1,485,507 km (0.076 R)
• M6: 2,292,737 km (0.091 R)
• M7: 2,878,562 km (0.102 R)
• M8: 3,477,103 km (0.101 R)
• M9: 5,190,597 km (0.071 R)
• M10: 6,179,589 km (0.066 R)
• M11: 6,643,193 km (0.115 R)
• M12: 7,928,538 km (0.085 R)
• M13: 8,324,374 km (0.117 R)
• M14: 8,759,554 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.9

Radius: 13.9

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 3.34 AU - 3.74 AU

Year: 4369 Days

Day: 5.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 29,100,466 km

• M1: 174,282 km (0.109 R)
• M2: 641,326 km (0.119 R)
• M3: 2,362,300 km (0.118 R)
• M4: 3,576,137 km (0.082 R)
• M5: 4,240,352 km (0.116 R)
• M6: 5,875,606 km (0.032 R)
• M7: 6,706,622 km (0.03 R)
• M8: 9,389,510 km (0.084 R)
• M9: 10,052,528 km (0.037 R)
• M10: 12,671,987 km (0.108 R)
• M11: 14,381,143 km (0.098 R)
• M12: 16,122,611 km (0.075 R)
• M13: 17,750,535 km (0.049 R)
• M14: 18,572,426 km (0.088 R)
• M15: 20,634,782 km (0.091 R)
• M16: 21,828,424 km (0.116 R)
• M17: 23,365,991 km (0.029 R)
• M18: 27,315,973 km (0.079 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 229 - 13,273 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit