🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.46

Radius: 1.16

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.65 AU - 1.03 AU

Year: 284 Days

Day: 19 Hours

Environment

Temp: 115 °C

Axial Tilt: 32 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.67

Radius: 0.85

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.48 AU - 1.6 AU

Year: 705 Days

Day: 22 Hours

Environment

Temp: -42 °C

Axial Tilt: 44.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.58 AU - 2.32 AU

Year: 1005 Days

Day: 17.3 Hours

Environment

Temp: -62 °C

Axial Tilt: 20 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,734,680 km

• M1: 26,329 km (0.066 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.06

Radius: 1.02

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.22 AU - 2.48 AU

Year: 1329 Days

Day: 13.6 Hours

Environment

Temp: -89 °C

Axial Tilt: 16.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.52

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 2.33 AU - 2.53 AU

Year: 1398 Days

Day: 28.9 Hours

Environment

Temp: -86 °C

Axial Tilt: 38.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.86

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 3.39 AU - 4.91 AU

Year: 3119 Days

Day: 13 Hours

Environment

Temp: -137 °C

Axial Tilt: 32.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,734,680 km

• M1: 633,397 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373

Radius: 11.2

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 10.26 AU - 12.96 AU

Year: 14596 Days

Day: 8.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 54,734,680 km

• M1: 165,904 km (0.025 R)
• M2: 774,618 km (0.094 R)
• M3: 1,183,768 km (0.084 R)
• M4: 1,564,345 km (0.072 R)
• M5: 2,061,608 km (0.093 R)
• M6: 2,521,921 km (0.086 R)
• M7: 3,095,778 km (0.108 R)
• M8: 3,781,236 km (0.075 R)
• M9: 4,244,989 km (0.074 R)
• M10: 5,353,809 km (0.087 R)
• M11: 6,417,449 km (0.115 R)
• M12: 10,772,393 km (0.09 R)
• M13: 11,261,429 km (0.045 R)
• M14: 11,993,860 km (0.076 R)
• M15: 19,437,850 km (0.096 R)
• M16: 20,000,637 km (0.098 R)
• M17: 21,840,541 km (0.099 R)
• M18: 24,527,917 km (0.112 R)
• M19: 24,996,308 km (0.108 R)
• M20: 25,470,683 km (0.088 R)
• M21: 28,034,940 km (0.095 R)
• M22: 29,590,010 km (0.061 R)
• M23: 30,228,045 km (0.083 R)
• M24: 31,752,148 km (0.11 R)
• M25: 32,308,652 km (0.084 R)
• M26: 36,753,354 km (0.087 R)
• M27: 40,278,030 km (0.08 R)
• M28: 40,930,426 km (0.045 R)
• M29: 41,457,310 km (0.118 R)
• M30: 42,794,266 km (0.08 R)
• M31: 43,337,157 km (0.117 R)
• M32: 44,714,205 km (0.097 R)
• M33: 46,120,276 km (0.08 R)
• M34: 49,020,380 km (0.106 R)
• M35: 49,614,732 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 300.5

Radius: 4

Gravity: 18.78 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 11.47 AU - 15.65 AU

Year: 18423 Days

Day: 23.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 70.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 54,734,680 km

• M1: 49,816 km (0.034 R)
• M2: 269,575 km (0.11 R)
• M3: 585,676 km (0.084 R)
• M4: 723,754 km (0.08 R)
• M5: 904,170 km (0.083 R)
• M6: 1,044,492 km (0.062 R)
• M7: 1,329,027 km (0.091 R)
• M8: 1,997,132 km (0.05 R)
• M9: 2,295,280 km (0.097 R)
• M10: 2,956,652 km (0.108 R)
• M11: 3,343,812 km (0.107 R)
• M12: 3,846,311 km (0.108 R)
• M13: 4,072,353 km (0.119 R)
• M14: 4,551,066 km (0.119 R)
• M15: 7,218,696 km (0.107 R)
• M16: 7,694,566 km (0.093 R)
• M17: 8,999,808 km (0.085 R)
• M18: 9,197,726 km (0.027 R)
• M19: 11,395,468 km (0.119 R)
• M20: 11,802,674 km (0.097 R)
• M21: 13,209,193 km (0.068 R)
• M22: 14,184,421 km (0.07 R)
• M23: 14,452,351 km (0.11 R)
• M24: 15,276,486 km (0.109 R)
• M25: 16,496,905 km (0.085 R)
• M26: 16,644,708 km (0.07 R)
• M27: 18,566,592 km (0.089 R)
• M28: 24,918,069 km (0.045 R)
• M29: 26,401,930 km (0.115 R)
• M30: 37,189,133 km (0.101 R)
• M31: 44,320,314 km (0.101 R)
• M32: 49,959,256 km (0.098 R)
• M33: 53,756,200 km (0.118 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 542 - 19,881 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit