🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.67

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.63 AU - 0.65 AU

Year: 331 Days

Day: 19.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 16.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.4

Radius: 13

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.98 AU - 1.1 AU

Year: 685 Days

Day: 9.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,703,821 km

• M1: 161,715 km (0.117 R)
• M2: 579,393 km (0.102 R)
• M3: 997,219 km (0.08 R)
• M4: 1,409,810 km (0.118 R)
• M5: 1,879,548 km (0.097 R)
• M6: 2,538,077 km (0.115 R)
• M7: 2,975,651 km (0.076 R)
• M8: 3,932,928 km (0.091 R)
• M9: 4,460,261 km (0.11 R)
• M10: 5,085,879 km (0.097 R)
• M11: 6,782,767 km (0.092 R)
• M12: 7,544,370 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.1

Radius: 14.8

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 2.89 AU - 3.07 AU

Year: 3322 Days

Day: 7 Hours

Environment

Temp: -195 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,703,821 km

• M1: 184,155 km (0.084 R)
• M2: 785,688 km (0.079 R)
• M3: 1,598,752 km (0.105 R)
• M4: 2,230,953 km (0.038 R)
• M5: 2,854,477 km (0.105 R)
• M6: 4,843,979 km (0.116 R)
• M7: 5,313,567 km (0.107 R)
• M8: 7,154,069 km (0.112 R)
• M9: 7,871,092 km (0.095 R)
• M10: 8,495,513 km (0.033 R)
• M11: 10,732,301 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.2

Radius: 11.6

Gravity: 6.47 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.69 AU - 4.77 AU

Year: 5617 Days

Day: 9.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 176.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,703,821 km

• M1: 144,212 km (0.076 R)
• M2: 545,135 km (0.094 R)
• M3: 1,244,355 km (0.107 R)
• M4: 1,884,185 km (0.086 R)
• M5: 2,534,786 km (0.102 R)
• M6: 3,061,520 km (0.058 R)
• M7: 5,504,005 km (0.116 R)
• M8: 5,936,642 km (0.071 R)
• M9: 7,671,229 km (0.029 R)
• M10: 9,633,205 km (0.112 R)
• M11: 11,707,081 km (0.075 R)
• M12: 14,465,217 km (0.115 R)
• M13: 20,635,829 km (0.088 R)
• M14: 25,125,411 km (0.081 R)
• M15: 30,513,029 km (0.109 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 84.7

Radius: 3.6

Gravity: 6.54 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 8.75 AU - 10.35 AU

Year: 19055 Days

Day: 18.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,703,821 km

• M1: 296,204 km (0.074 R)
• M2: 667,057 km (0.104 R)
• M3: 875,596 km (0.105 R)
• M4: 1,190,649 km (0.047 R)
• M5: 1,589,777 km (0.115 R)
• M6: 3,778,393 km (0.117 R)
• M7: 7,459,548 km (0.045 R)
• M8: 8,042,531 km (0.04 R)
• M9: 9,167,657 km (0.101 R)
• M10: 10,923,038 km (0.066 R)
• M11: 11,470,118 km (0.114 R)
• M12: 24,687,837 km (0.053 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 376 - 10,864 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit