🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.9

Radius: 1.72

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.46 AU - 0.62 AU

Year: 149 Days

Day: 13.2 Hours

Environment

Temp: 177 °C

Axial Tilt: 39.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 51,163,012 km

• M1: 219,011 km (0.103 R)
• M2: 299,495 km (0.074 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.66

Radius: 0.85

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.62 AU - 0.82 AU

Year: 230 Days

Day: 31.7 Hours

Environment

Temp: 118 °C

Axial Tilt: 165 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 51,163,012 km

• M1: 23,337 km (0.05 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.91 AU - 1.17 AU

Year: 400 Days

Day: 35.7 Hours

Environment

Temp: 10 °C

Axial Tilt: 13.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.3

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.89 AU - 1.21 AU

Year: 405 Days

Day: 15.5 Hours

Environment

Temp: 21 °C

Axial Tilt: 26.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.99 AU - 1.45 AU

Year: 508 Days

Day: 24.4 Hours

Environment

Temp: -4 °C

Axial Tilt: 32.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.33 AU - 1.47 AU

Year: 624 Days

Day: 45.3 Hours

Environment

Temp: -48 °C

Axial Tilt: 12.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.85 AU - 2.37 AU

Year: 1155 Days

Day: 16.6 Hours

Environment

Temp: -72 °C

Axial Tilt: 11.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.49

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 2.85 AU - 3.85 AU

Year: 2310 Days

Day: 18.7 Hours

Environment

Temp: -114 °C

Axial Tilt: 4.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 51,163,012 km

• M1: 1,442,273 km (0.114 R)
• M2: 2,645,190 km (0.116 R)

Asteroid Belt

Center: 4.97 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151

Radius: 14.2

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 6.48 AU - 6.7 AU

Year: 6373 Days

Day: 8.2 Hours

Environment

Temp: -151 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 51,163,012 km

• M1: 176,675 km (0.045 R)
• M2: 689,945 km (0.083 R)
• M3: 1,136,046 km (0.062 R)
• M4: 1,674,748 km (0.06 R)
• M5: 2,398,652 km (0.088 R)
• M6: 3,115,525 km (0.105 R)
• M7: 3,581,523 km (0.11 R)
• M8: 5,830,427 km (0.114 R)
• M9: 6,374,515 km (0.086 R)
• M10: 7,565,314 km (0.075 R)
• M11: 8,829,566 km (0.109 R)
• M12: 10,152,908 km (0.05 R)
• M13: 13,145,314 km (0.085 R)
• M14: 14,521,765 km (0.115 R)
• M15: 14,968,015 km (0.113 R)
• M16: 16,953,927 km (0.098 R)

Planet 10 - Gas Giant

Semi-Major Axis: 9.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.9

Radius: 12.3

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 8.42 AU - 9.78 AU

Year: 10342 Days

Day: 9.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 51,163,012 km

• M1: 154,684 km (0.071 R)
• M2: 560,992 km (0.062 R)
• M3: 1,489,396 km (0.047 R)
• M4: 2,358,859 km (0.066 R)
• M5: 3,491,614 km (0.042 R)
• M6: 5,829,530 km (0.091 R)
• M7: 6,879,707 km (0.059 R)
• M8: 7,576,534 km (0.113 R)
• M9: 9,749,592 km (0.083 R)
• M10: 10,312,978 km (0.106 R)
• M11: 10,952,210 km (0.067 R)
• M12: 11,788,312 km (0.056 R)
• M13: 12,786,728 km (0.087 R)
• M14: 15,494,899 km (0.089 R)
• M15: 18,256,176 km (0.047 R)
• M16: 19,996,747 km (0.107 R)
• M17: 20,656,324 km (0.105 R)
• M18: 21,075,946 km (0.104 R)
• M19: 21,672,842 km (0.089 R)
• M20: 24,174,118 km (0.03 R)
• M21: 24,640,265 km (0.106 R)
• M22: 26,368,121 km (0.12 R)
• M23: 28,278,336 km (0.111 R)
• M24: 30,711,844 km (0.109 R)
• M25: 32,259,883 km (0.037 R)
• M26: 35,152,508 km (0.088 R)
• M27: 39,615,461 km (0.027 R)
• M28: 41,315,790 km (0.116 R)
• M29: 43,337,606 km (0.061 R)
• M30: 46,852,557 km (0.036 R)
• M31: 49,647,943 km (0.112 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 511 - 16,298 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit