🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.57

Radius: 1.66

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.55 AU - 0.69 AU

Year: 310 Days

Day: 25 Hours

Environment

Temp: -139 °C

Axial Tilt: 17.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.6

Radius: 8.5

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.66 AU - 0.82 AU

Year: 405 Days

Day: 14 Hours

Environment

Temp: -147 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 27,618,756 km

• M1: 105,766 km (0.088 R)
• M2: 935,884 km (0.115 R)
• M3: 1,381,686 km (0.078 R)
• M4: 1,807,441 km (0.109 R)
• M5: 2,129,825 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.2

Radius: 13.9

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.91 AU - 0.97 AU

Year: 579 Days

Day: 7.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 27,618,756 km

• M1: 172,935 km (0.078 R)
• M2: 734,226 km (0.105 R)
• M3: 1,349,971 km (0.045 R)
• M4: 1,795,773 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735

Radius: 13.2

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.41 AU - 1.77 AU

Year: 1275 Days

Day: 6.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 27,618,756 km

• M1: 164,258 km (0.075 R)
• M2: 880,533 km (0.115 R)
• M3: 1,350,270 km (0.081 R)
• M4: 1,762,562 km (0.112 R)
• M5: 2,215,993 km (0.113 R)
• M6: 2,721,784 km (0.089 R)
• M7: 3,486,079 km (0.095 R)
• M8: 3,953,124 km (0.103 R)
• M9: 4,974,877 km (0.063 R)
• M10: 5,442,819 km (0.097 R)
• M11: 6,396,955 km (0.076 R)
• M12: 7,126,693 km (0.113 R)
• M13: 7,643,554 km (0.047 R)
• M14: 9,285,540 km (0.083 R)
• M15: 9,715,035 km (0.076 R)
• M16: 10,580,758 km (0.118 R)
• M17: 11,151,923 km (0.068 R)
• M18: 11,602,512 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.2

Radius: 12.7

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 5.5 AU - 5.94 AU

Year: 8698 Days

Day: 10.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,618,756 km

• M1: 157,975 km (0.095 R)
• M2: 735,274 km (0.048 R)
• M3: 1,162,824 km (0.062 R)
• M4: 1,876,256 km (0.096 R)
• M5: 3,119,564 km (0.111 R)
• M6: 4,316,048 km (0.115 R)
• M7: 5,405,719 km (0.117 R)
• M8: 6,483,422 km (0.111 R)
• M9: 7,424,393 km (0.082 R)
• M10: 8,052,853 km (0.109 R)
• M11: 8,716,470 km (0.111 R)
• M12: 9,257,715 km (0.061 R)
• M13: 10,322,403 km (0.09 R)
• M14: 11,150,876 km (0.108 R)
• M15: 14,165,273 km (0.075 R)
• M16: 17,081,833 km (0.104 R)
• M17: 21,751,231 km (0.113 R)
• M18: 26,561,700 km (0.118 R)
• M19: 27,618,759 km (0.105 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: 365 - 17,537 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit