🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.16

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.52 AU - 0.56 AU

Year: 256 Days

Day: 26.8 Hours

Environment

Temp: -120 °C

Axial Tilt: 41.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.1

Radius: 11

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.72 AU - 0.92 AU

Year: 479 Days

Day: 10.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 20,591,541 km

• M1: 136,732 km (0.07 R)
• M2: 488,886 km (0.078 R)
• M3: 841,189 km (0.079 R)
• M4: 1,294,470 km (0.08 R)
• M5: 1,691,653 km (0.089 R)
• M6: 2,099,157 km (0.103 R)
• M7: 2,787,008 km (0.062 R)
• M8: 3,295,940 km (0.036 R)
• M9: 3,735,459 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887.5

Radius: 12.7

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.92 AU - 1.42 AU

Year: 817 Days

Day: 7.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 20,591,541 km

• M1: 157,975 km (0.12 R)
• M2: 580,141 km (0.097 R)
• M3: 988,393 km (0.107 R)
• M4: 1,786,348 km (0.045 R)
• M5: 2,280,769 km (0.092 R)
• M6: 3,188,828 km (0.078 R)
• M7: 4,161,364 km (0.118 R)
• M8: 5,189,849 km (0.073 R)
• M9: 5,855,560 km (0.068 R)
• M10: 7,478,098 km (0.118 R)
• M11: 8,328,562 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.3

Radius: 13.3

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.52 AU - 2.1 AU

Year: 1572 Days

Day: 9.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,591,541 km

• M1: 166,951 km (0.078 R)
• M2: 755,320 km (0.028 R)
• M3: 1,281,904 km (0.081 R)
• M4: 2,530,149 km (0.083 R)
• M5: 3,312,994 km (0.102 R)
• M6: 4,560,641 km (0.075 R)
• M7: 5,302,048 km (0.091 R)
• M8: 6,101,050 km (0.078 R)
• M9: 6,608,935 km (0.113 R)
• M10: 10,152,310 km (0.098 R)

Asteroid Belt

Center: 2.72 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.6

Radius: 8.8

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.8 AU - 4.44 AU

Year: 4447 Days

Day: 6.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 20,591,541 km

• M1: 109,655 km (0.075 R)
• M2: 410,646 km (0.06 R)
• M3: 696,378 km (0.065 R)
• M4: 972,685 km (0.092 R)
• M5: 2,195,498 km (0.041 R)
• M6: 3,425,043 km (0.118 R)
• M7: 4,168,096 km (0.09 R)
• M8: 4,781,447 km (0.114 R)
• M9: 5,206,604 km (0.05 R)
• M10: 7,533,599 km (0.088 R)
• M11: 8,012,013 km (0.106 R)
• M12: 9,829,328 km (0.113 R)
• M13: 10,246,257 km (0.071 R)
• M14: 13,001,401 km (0.029 R)
• M15: 13,830,922 km (0.065 R)
• M16: 14,744,217 km (0.073 R)
• M17: 16,372,739 km (0.099 R)
• M18: 18,061,400 km (0.108 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 350 - 13,405 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit