🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.48 AU - 0.7 AU

Year: 170 Days

Day: 38 Hours

Environment

Temp: 132 °C

Axial Tilt: 5.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 36,079,657 km

• M1: 95,294 km (0.071 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.02

Radius: 1.74

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.56 AU - 0.68 AU

Year: 183 Days

Day: 14.3 Hours

Environment

Temp: 160 °C

Axial Tilt: 34.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.88 AU - 1.34 AU

Year: 438 Days

Day: 31.3 Hours

Environment

Temp: 10 °C

Axial Tilt: 48.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 36,079,657 km

• M1: 149,448 km (0.092 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.08

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.21 AU - 1.45 AU

Year: 575 Days

Day: 37.9 Hours

Environment

Temp: -32 °C

Axial Tilt: 13.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 36,079,657 km

• M1: 70,760 km (0.085 R)
• M2: 152,739 km (0.067 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.48

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.58 AU - 1.68 AU

Year: 780 Days

Day: 35.5 Hours

Environment

Temp: -47 °C

Axial Tilt: 42.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.22

Radius: 1.08

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.91 AU - 1.95 AU

Year: 1005 Days

Day: 31.6 Hours

Environment

Temp: -70 °C

Axial Tilt: 18.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.44

Radius: 1.16

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 2.19 AU - 2.55 AU

Year: 1367 Days

Day: 22.8 Hours

Environment

Temp: -95 °C

Axial Tilt: 37.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 36,079,657 km

• M1: 89,460 km (0.108 R)
• M2: 309,967 km (0.119 R)

Planet 8 - Terrestrial

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.72 AU - 2.96 AU

Year: 1794 Days

Day: 19.6 Hours

Environment

Temp: -112 °C

Axial Tilt: 43.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 36,079,657 km

• M1: 922,570 km (0.097 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805

Radius: 12.3

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 4.86 AU - 5.38 AU

Year: 4341 Days

Day: 8.8 Hours

Environment

Temp: -137 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,079,657 km

• M1: 153,487 km (0.081 R)
• M2: 541,843 km (0.1 R)
• M3: 947,553 km (0.104 R)
• M4: 1,337,555 km (0.079 R)
• M5: 1,890,767 km (0.09 R)
• M6: 2,478,837 km (0.073 R)
• M7: 3,630,740 km (0.101 R)
• M8: 5,580,300 km (0.074 R)
• M9: 6,668,923 km (0.037 R)
• M10: 7,196,106 km (0.067 R)
• M11: 8,222,797 km (0.044 R)
• M12: 11,607,748 km (0.117 R)
• M13: 14,161,533 km (0.104 R)
• M14: 15,090,386 km (0.115 R)
• M15: 17,682,768 km (0.037 R)
• M16: 20,422,054 km (0.054 R)
• M17: 20,904,507 km (0.107 R)
• M18: 24,809,161 km (0.086 R)
• M19: 26,891,713 km (0.041 R)
• M20: 27,305,202 km (0.104 R)
• M21: 28,656,968 km (0.071 R)

Planet 10 - Gas Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.6

Radius: 13.4

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 4.95 AU - 6.91 AU

Year: 5411 Days

Day: 10.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 36,079,657 km

• M1: 167,400 km (0.074 R)
• M2: 694,733 km (0.115 R)
• M3: 1,365,679 km (0.097 R)
• M4: 2,106,338 km (0.118 R)
• M5: 2,846,399 km (0.089 R)
• M6: 3,943,101 km (0.095 R)
• M7: 5,216,328 km (0.078 R)
• M8: 5,635,202 km (0.104 R)
• M9: 7,210,019 km (0.117 R)
• M10: 7,885,154 km (0.078 R)
• M11: 8,439,115 km (0.066 R)
• M12: 8,892,397 km (0.07 R)
• M13: 10,775,684 km (0.108 R)
• M14: 11,211,612 km (0.081 R)
• M15: 12,911,942 km (0.115 R)
• M16: 13,965,859 km (0.115 R)
• M17: 15,317,476 km (0.048 R)
• M18: 18,692,404 km (0.095 R)
• M19: 22,066,434 km (0.073 R)
• M20: 25,144,410 km (0.073 R)
• M21: 26,260,111 km (0.111 R)
• M22: 26,962,922 km (0.105 R)
• M23: 27,408,424 km (0.07 R)
• M24: 28,498,095 km (0.083 R)
• M25: 29,240,250 km (0.11 R)
• M26: 31,152,410 km (0.114 R)
• M27: 31,940,193 km (0.107 R)
• M28: 34,071,214 km (0.119 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: 475 - 11,585 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit