🌌 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: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.7

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.47 AU - 0.59 AU

Year: 140 Days

Day: 19.9 Hours

Environment

Temp: 258 °C

Axial Tilt: 8.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.74

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.53 AU - 0.59 AU

Year: 152 Days

Day: 27.2 Hours

Environment

Temp: 203 °C

Axial Tilt: 24 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.72 AU - 0.82 AU

Year: 246 Days

Day: 42.2 Hours

Environment

Temp: 139 °C

Axial Tilt: 34.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.27

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.64 AU - 1.06 AU

Year: 285 Days

Day: 33.5 Hours

Environment

Temp: 118 °C

Axial Tilt: 26.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.22

Radius: 1.08

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.02 AU - 1.24 AU

Year: 437 Days

Day: 31.5 Hours

Environment

Temp: 21 °C

Axial Tilt: 11.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.01 AU - 1.37 AU

Year: 472 Days

Day: 35.2 Hours

Environment

Temp: -2 °C

Axial Tilt: 35.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 41,963,166 km

• M1: 763,996 km (0.086 R)

Planet 7 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.45

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1 AU - 1.56 AU

Year: 526 Days

Day: 41.6 Hours

Environment

Temp: 13 °C

Axial Tilt: 7.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 41,963,166 km

• M1: 497,563 km (0.114 R)
• M2: 840,142 km (0.075 R)

Planet 8 - Terrestrial

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.17 AU - 2.37 AU

Year: 1243 Days

Day: 39.9 Hours

Environment

Temp: -68 °C

Axial Tilt: 45.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Terrestrial

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.86

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 3.16 AU - 4.9 AU

Year: 2940 Days

Day: 31.6 Hours

Environment

Temp: -115 °C

Axial Tilt: 37.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 10 - Ice Giant

Semi-Major Axis: 18.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 56.5

Radius: 6.8

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 14.33 AU - 22.33 AU

Year: 28522 Days

Day: 17.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (55)

Outer Limit: 41,963,166 km

• M1: 132,843 km (0.103 R)
• M2: 407,056 km (0.107 R)
• M3: 484,398 km (0.105 R)
• M4: 552,764 km (0.055 R)
• M5: 624,721 km (0.042 R)
• M6: 979,417 km (0.119 R)
• M7: 1,122,433 km (0.057 R)
• M8: 1,675,347 km (0.112 R)
• M9: 1,913,207 km (0.074 R)
• M10: 1,979,928 km (0.106 R)
• M11: 2,093,024 km (0.094 R)
• M12: 2,254,889 km (0.059 R)
• M13: 2,764,868 km (0.11 R)
• M14: 3,389,888 km (0.106 R)
• M15: 4,230,478 km (0.116 R)
• M16: 4,376,486 km (0.087 R)
• M17: 4,764,393 km (0.098 R)
• M18: 8,095,788 km (0.095 R)
• M19: 8,793,213 km (0.062 R)
• M20: 9,017,460 km (0.097 R)
• M21: 10,245,061 km (0.082 R)
• M22: 10,520,620 km (0.12 R)
• M23: 12,642,217 km (0.112 R)
• M24: 13,022,495 km (0.071 R)
• M25: 13,278,157 km (0.089 R)
• M26: 14,890,822 km (0.088 R)
• M27: 15,472,010 km (0.117 R)
• M28: 15,652,425 km (0.104 R)
• M29: 16,060,678 km (0.083 R)
• M30: 16,426,594 km (0.098 R)
• M31: 16,702,752 km (0.103 R)
• M32: 17,822,791 km (0.11 R)
• M33: 17,870,064 km (0.091 R)
• M34: 20,628,200 km (0.061 R)
• M35: 22,692,651 km (0.108 R)
• M36: 23,154,459 km (0.083 R)
• M37: 24,348,998 km (0.054 R)
• M38: 25,563,284 km (0.069 R)
• M39: 26,473,587 km (0.054 R)
• M40: 26,527,442 km (0.114 R)
• M41: 27,339,908 km (0.035 R)
• M42: 27,667,229 km (0.103 R)
• M43: 28,270,557 km (0.108 R)
• M44: 30,783,801 km (0.096 R)
• M45: 31,923,587 km (0.099 R)
• M46: 32,671,876 km (0.083 R)
• M47: 32,961,198 km (0.11 R)
• M48: 33,484,043 km (0.106 R)
• M49: 34,185,507 km (0.087 R)
• M50: 35,128,422 km (0.113 R)
• M51: 39,352,767 km (0.036 R)
• M52: 39,845,542 km (0.105 R)
• M53: 40,962,141 km (0.111 R)
• M54: 41,524,180 km (0.096 R)
• M55: 41,712,075 km (0.083 R)

Kuiper Belt

Range: 30.2 - 55.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 288 - 14,814 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit