🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.92

Radius: 1.54

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.45 AU - 0.73 AU

Year: 297 Days

Day: 18.5 Hours

Environment

Temp: -119 °C

Axial Tilt: 6.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157

Radius: 9.2

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.76 AU - 0.98 AU

Year: 532 Days

Day: 8.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 11,884,854 km

• M1: 114,742 km (0.097 R)
• M2: 487,240 km (0.107 R)
• M3: 800,797 km (0.08 R)
• M4: 1,222,963 km (0.092 R)
• M5: 1,633,758 km (0.115 R)
• M6: 2,067,143 km (0.07 R)
• M7: 2,405,833 km (0.107 R)
• M8: 2,979,391 km (0.072 R)
• M9: 3,382,408 km (0.046 R)
• M10: 3,730,672 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.8

Radius: 15

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.93 AU - 1.21 AU

Year: 726 Days

Day: 11.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 11,884,854 km

• M1: 186,549 km (0.058 R)
• M2: 777,161 km (0.033 R)
• M3: 1,266,346 km (0.116 R)
• M4: 1,742,666 km (0.102 R)
• M5: 2,249,653 km (0.095 R)
• M6: 3,571,500 km (0.079 R)
• M7: 4,259,650 km (0.083 R)
• M8: 4,964,106 km (0.101 R)
• M9: 6,023,708 km (0.114 R)
• M10: 6,694,206 km (0.057 R)
• M11: 7,160,951 km (0.118 R)
• M12: 7,697,259 km (0.092 R)
• M13: 8,824,629 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.4

Radius: 10.1

Gravity: 8.46 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.18 AU - 1.94 AU

Year: 1278 Days

Day: 11.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 11,884,854 km

• M1: 125,662 km (0.111 R)
• M2: 1,009,337 km (0.119 R)
• M3: 1,493,884 km (0.068 R)
• M4: 2,757,538 km (0.074 R)
• M5: 3,410,532 km (0.075 R)
• M6: 4,704,703 km (0.051 R)
• M7: 5,187,755 km (0.067 R)
• M8: 5,837,907 km (0.035 R)
• M9: 6,468,612 km (0.075 R)
• M10: 6,939,097 km (0.114 R)
• M11: 7,274,196 km (0.064 R)
• M12: 9,114,849 km (0.118 R)
• M13: 10,626,236 km (0.084 R)
• M14: 11,072,337 km (0.068 R)
• M15: 12,828,466 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 570.7

Radius: 10

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.44 AU - 1.8 AU

Year: 1353 Days

Day: 12.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 11,884,854 km

• M1: 124,615 km (0.063 R)
• M2: 754,572 km (0.119 R)
• M3: 1,217,577 km (0.111 R)
• M4: 1,684,472 km (0.063 R)
• M5: 2,189,664 km (0.097 R)
• M6: 2,539,723 km (0.113 R)
• M7: 3,065,111 km (0.119 R)
• M8: 3,399,013 km (0.109 R)
• M9: 4,605,969 km (0.111 R)
• M10: 5,226,052 km (0.078 R)
• M11: 5,577,457 km (0.112 R)
• M12: 5,989,001 km (0.108 R)
• M13: 7,045,162 km (0.074 R)
• M14: 8,193,625 km (0.088 R)
• M15: 10,207,512 km (0.119 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 228 - 16,730 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit