🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.62

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.52 AU - 0.64 AU

Year: 157 Days

Day: 47.3 Hours

Environment

Temp: 191 °C

Axial Tilt: 37.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 65,931,363 km

• M1: 41,887 km (0.106 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.55 AU - 0.65 AU

Year: 165 Days

Day: 25.9 Hours

Environment

Temp: 219 °C

Axial Tilt: 14.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.86

Radius: 0.94

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.09 AU - 1.21 AU

Year: 438 Days

Day: 17.9 Hours

Environment

Temp: 23 °C

Axial Tilt: 10.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 65,931,363 km

• M1: 83,476 km (0.112 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.82

Radius: 1.51

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.2 AU - 1.22 AU

Year: 472 Days

Day: 37 Hours

Environment

Temp: 24 °C

Axial Tilt: 32.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.51 AU - 1.69 AU

Year: 718 Days

Day: 17.3 Hours

Environment

Temp: -37 °C

Axial Tilt: 13.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.65 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 811.3

Radius: 11.7

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 5.45 AU - 5.93 AU

Year: 4815 Days

Day: 9.3 Hours

Environment

Temp: -136 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 65,931,363 km

• M1: 145,559 km (0.12 R)
• M2: 547,977 km (0.11 R)
• M3: 1,051,523 km (0.119 R)
• M4: 1,807,142 km (0.093 R)
• M5: 2,298,422 km (0.116 R)
• M6: 3,661,408 km (0.079 R)
• M7: 5,533,176 km (0.117 R)
• M8: 5,949,059 km (0.08 R)
• M9: 6,579,314 km (0.109 R)
• M10: 7,680,055 km (0.11 R)
• M11: 8,160,863 km (0.113 R)
• M12: 8,622,372 km (0.109 R)
• M13: 9,724,909 km (0.078 R)
• M14: 10,466,017 km (0.079 R)
• M15: 12,308,314 km (0.109 R)
• M16: 13,919,932 km (0.025 R)
• M17: 16,022,530 km (0.086 R)
• M18: 18,199,030 km (0.086 R)
• M19: 21,640,230 km (0.112 R)
• M20: 23,130,673 km (0.101 R)
• M21: 25,901,824 km (0.072 R)
• M22: 26,985,362 km (0.029 R)
• M23: 30,417,137 km (0.109 R)
• M24: 31,155,402 km (0.06 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.3

Radius: 10.8

Gravity: 8.07 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 5.69 AU - 6.61 AU

Year: 5411 Days

Day: 5.9 Hours

Environment

Temp: -141 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 65,931,363 km

• M1: 136,433 km (0.056 R)
• M2: 552,166 km (0.104 R)
• M3: 941,719 km (0.105 R)
• M4: 1,507,647 km (0.102 R)
• M5: 2,130,274 km (0.084 R)
• M6: 2,898,010 km (0.084 R)
• M7: 3,346,504 km (0.112 R)
• M8: 3,794,101 km (0.066 R)
• M9: 4,383,816 km (0.095 R)
• M10: 5,593,016 km (0.09 R)
• M11: 8,214,419 km (0.051 R)
• M12: 9,994,634 km (0.105 R)
• M13: 10,688,917 km (0.096 R)
• M14: 11,218,045 km (0.117 R)
• M15: 12,433,528 km (0.09 R)
• M16: 12,857,638 km (0.09 R)
• M17: 14,534,630 km (0.084 R)
• M18: 15,669,479 km (0.113 R)
• M19: 16,862,373 km (0.107 R)
• M20: 18,250,192 km (0.045 R)
• M21: 18,798,319 km (0.093 R)
• M22: 19,287,055 km (0.086 R)
• M23: 21,251,874 km (0.055 R)
• M24: 22,012,279 km (0.119 R)
• M25: 26,089,569 km (0.053 R)
• M26: 26,610,320 km (0.082 R)
• M27: 28,033,145 km (0.092 R)
• M28: 29,319,238 km (0.117 R)
• M29: 32,705,834 km (0.101 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.5

Radius: 14.2

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 9.92 AU - 14.84 AU

Year: 15453 Days

Day: 12.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 65,931,363 km

• M1: 176,525 km (0.053 R)
• M2: 1,074,262 km (0.064 R)
• M3: 1,589,328 km (0.047 R)
• M4: 2,173,657 km (0.112 R)
• M5: 2,693,210 km (0.089 R)
• M6: 4,017,451 km (0.119 R)
• M7: 4,512,470 km (0.038 R)
• M8: 6,168,519 km (0.055 R)
• M9: 7,494,105 km (0.096 R)
• M10: 11,056,928 km (0.082 R)
• M11: 12,547,222 km (0.103 R)
• M12: 15,248,960 km (0.05 R)
• M13: 15,772,104 km (0.108 R)
• M14: 17,172,489 km (0.108 R)
• M15: 19,253,246 km (0.027 R)
• M16: 20,760,893 km (0.09 R)
• M17: 23,810,595 km (0.119 R)
• M18: 26,285,543 km (0.117 R)
• M19: 28,475,356 km (0.087 R)
• M20: 36,035,135 km (0.119 R)
• M21: 44,986,623 km (0.114 R)
• M22: 54,443,602 km (0.118 R)
• M23: 62,254,107 km (0.117 R)

Kuiper Belt

Range: 30.9 - 53.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 256 - 14,619 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit