🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.67 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.19

Radius: 0.51

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.06 AU - 1.62 AU

Year: 581 Days

Day: 21.4 Hours

Environment

Temp: -32 °C

Axial Tilt: 31.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.07

Radius: 1.03

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.35 AU - 1.37 AU

Year: 594 Days

Day: 38.2 Hours

Environment

Temp: -26 °C

Axial Tilt: 18.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.61 AU - 1.73 AU

Year: 809 Days

Day: 39.2 Hours

Environment

Temp: -48 °C

Axial Tilt: 32.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.68 AU - 2.74 AU

Year: 1672 Days

Day: 19.8 Hours

Environment

Temp: -103 °C

Axial Tilt: 35.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.3 AU - 3.78 AU

Year: 2496 Days

Day: 38 Hours

Environment

Temp: -123 °C

Axial Tilt: 34.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 44,189,859 km

• M1: 67,768 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.7

Radius: 14.3

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 5.5 AU - 6.76 AU

Year: 5687 Days

Day: 9.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 72.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,189,859 km

• M1: 177,872 km (0.069 R)
• M2: 669,750 km (0.087 R)
• M3: 1,217,427 km (0.093 R)
• M4: 1,962,724 km (0.073 R)
• M5: 2,905,490 km (0.082 R)
• M6: 4,212,078 km (0.085 R)
• M7: 5,020,953 km (0.064 R)
• M8: 6,781,122 km (0.077 R)
• M9: 8,080,679 km (0.077 R)
• M10: 8,889,853 km (0.074 R)
• M11: 9,540,305 km (0.107 R)
• M12: 11,326,354 km (0.084 R)
• M13: 14,737,036 km (0.062 R)
• M14: 15,600,814 km (0.067 R)
• M15: 16,907,701 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.2

Radius: 11.1

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 6.21 AU - 6.23 AU

Year: 5813 Days

Day: 9.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 44,189,859 km

• M1: 138,378 km (0.069 R)
• M2: 521,349 km (0.067 R)
• M3: 1,355,058 km (0.106 R)
• M4: 1,819,559 km (0.104 R)
• M5: 2,336,719 km (0.078 R)
• M6: 2,753,947 km (0.108 R)
• M7: 3,371,188 km (0.101 R)
• M8: 4,059,338 km (0.095 R)
• M9: 5,264,499 km (0.032 R)
• M10: 6,089,232 km (0.09 R)
• M11: 6,479,383 km (0.097 R)
• M12: 7,397,316 km (0.068 R)
• M13: 7,872,438 km (0.096 R)
• M14: 8,623,569 km (0.114 R)
• M15: 10,052,079 km (0.101 R)
• M16: 13,199,768 km (0.117 R)
• M17: 13,900,185 km (0.118 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 659.2

Radius: 15

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 6.19 AU - 7.53 AU

Year: 6733 Days

Day: 12.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 44,189,859 km

• M1: 186,997 km (0.1 R)
• M2: 711,936 km (0.118 R)
• M3: 1,723,966 km (0.107 R)
• M4: 2,331,932 km (0.03 R)
• M5: 2,962,935 km (0.113 R)
• M6: 3,870,097 km (0.087 R)
• M7: 5,069,423 km (0.058 R)
• M8: 5,601,543 km (0.097 R)
• M9: 8,890,003 km (0.059 R)
• M10: 9,579,051 km (0.104 R)
• M11: 10,537,375 km (0.11 R)
• M12: 11,359,266 km (0.108 R)
• M13: 14,083,592 km (0.077 R)
• M14: 15,201,836 km (0.108 R)
• M15: 16,000,539 km (0.109 R)
• M16: 16,505,881 km (0.107 R)
• M17: 17,883,378 km (0.069 R)
• M18: 18,359,249 km (0.107 R)
• M19: 19,053,682 km (0.044 R)
• M20: 19,837,725 km (0.069 R)
• M21: 23,513,494 km (0.115 R)
• M22: 24,085,108 km (0.114 R)
• M23: 25,171,338 km (0.101 R)
• M24: 26,994,487 km (0.066 R)
• M25: 28,075,032 km (0.102 R)
• M26: 32,890,289 km (0.11 R)

Planet 9 - Gas Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.1

Radius: 12

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 7.54 AU - 7.96 AU

Year: 8085 Days

Day: 11.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 44,189,859 km

• M1: 149,747 km (0.072 R)
• M2: 720,763 km (0.116 R)
• M3: 1,865,037 km (0.111 R)
• M4: 2,273,289 km (0.066 R)
• M5: 2,946,779 km (0.094 R)
• M6: 3,577,932 km (0.116 R)
• M7: 6,341,753 km (0.064 R)
• M8: 8,565,525 km (0.09 R)
• M9: 9,286,587 km (0.098 R)
• M10: 10,393,462 km (0.095 R)
• M11: 11,109,138 km (0.074 R)
• M12: 13,335,753 km (0.062 R)
• M13: 15,515,543 km (0.096 R)
• M14: 16,247,226 km (0.113 R)
• M15: 16,932,085 km (0.104 R)
• M16: 19,866,148 km (0.076 R)
• M17: 28,357,473 km (0.077 R)
• M18: 29,250,273 km (0.098 R)
• M19: 33,227,632 km (0.109 R)
• M20: 36,611,984 km (0.096 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 256 - 13,357 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit