🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.57 AU - 0.65 AU

Year: 313 Days

Day: 25.2 Hours

Environment

Temp: -136 °C

Axial Tilt: 2.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.56 AU - 0.68 AU

Year: 320 Days

Day: 17.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 24.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.6

Radius: 8.4

Gravity: 10.2 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.81 AU - 0.87 AU

Year: 505 Days

Day: 14.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 52,578,122 km

• M1: 104,569 km (0.038 R)
• M2: 373,546 km (0.047 R)
• M3: 662,719 km (0.066 R)
• M4: 1,069,026 km (0.105 R)
• M5: 1,830,330 km (0.091 R)
• M6: 3,214,260 km (0.106 R)
• M7: 4,143,113 km (0.093 R)
• M8: 5,634,753 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.3

Radius: 14.3

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.85 AU - 1.29 AU

Year: 726 Days

Day: 9.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,578,122 km

• M1: 177,872 km (0.096 R)
• M2: 637,885 km (0.078 R)
• M3: 1,113,756 km (0.118 R)
• M4: 1,714,541 km (0.035 R)
• M5: 2,627,238 km (0.049 R)
• M6: 3,233,109 km (0.116 R)
• M7: 4,140,271 km (0.116 R)
• M8: 4,846,373 km (0.075 R)
• M9: 5,841,198 km (0.096 R)
• M10: 6,946,428 km (0.071 R)
• M11: 8,357,883 km (0.107 R)

Asteroid Belt

Center: 2.1 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 564.3

Radius: 13.3

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 2.6 AU - 3.66 AU

Year: 3633 Days

Day: 9.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,578,122 km

• M1: 165,455 km (0.096 R)
• M2: 642,822 km (0.109 R)
• M3: 1,372,710 km (0.109 R)
• M4: 2,493,348 km (0.115 R)
• M5: 2,920,001 km (0.098 R)
• M6: 3,943,998 km (0.084 R)
• M7: 5,499,966 km (0.109 R)
• M8: 6,576,771 km (0.096 R)
• M9: 8,501,797 km (0.102 R)
• M10: 10,819,217 km (0.1 R)
• M11: 11,320,370 km (0.082 R)
• M12: 13,387,513 km (0.113 R)
• M13: 13,819,552 km (0.032 R)
• M14: 14,610,925 km (0.059 R)
• M15: 15,120,754 km (0.081 R)
• M16: 16,611,647 km (0.06 R)
• M17: 21,475,522 km (0.103 R)
• M18: 22,672,754 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.9

Radius: 11.7

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 3 AU - 4.84 AU

Year: 5091 Days

Day: 8.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,578,122 km

• M1: 145,858 km (0.097 R)
• M2: 595,848 km (0.061 R)
• M3: 1,096,104 km (0.108 R)
• M4: 1,486,105 km (0.101 R)
• M5: 2,235,441 km (0.1 R)
• M6: 3,262,281 km (0.055 R)
• M7: 4,404,461 km (0.05 R)
• M8: 5,246,996 km (0.08 R)
• M9: 6,351,626 km (0.064 R)
• M10: 8,737,563 km (0.092 R)
• M11: 9,721,767 km (0.116 R)
• M12: 10,824,004 km (0.048 R)
• M13: 13,433,739 km (0.095 R)
• M14: 13,861,290 km (0.072 R)
• M15: 15,604,255 km (0.108 R)
• M16: 16,256,501 km (0.096 R)
• M17: 17,615,598 km (0.113 R)
• M18: 23,893,024 km (0.044 R)
• M19: 28,089,394 km (0.102 R)
• M20: 30,133,200 km (0.051 R)
• M21: 30,959,429 km (0.069 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 602.1

Radius: 6.2

Gravity: 15.66 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 6.09 AU - 7.99 AU

Year: 12254 Days

Day: 18.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 52,578,122 km

• M1: 77,193 km (0.085 R)
• M2: 484,697 km (0.102 R)
• M3: 839,842 km (0.11 R)
• M4: 1,065,286 km (0.119 R)
• M5: 1,749,547 km (0.057 R)
• M6: 2,104,393 km (0.03 R)
• M7: 3,616,678 km (0.098 R)
• M8: 3,856,783 km (0.086 R)
• M9: 4,518,903 km (0.12 R)
• M10: 5,254,326 km (0.116 R)
• M11: 5,597,803 km (0.117 R)
• M12: 6,367,933 km (0.082 R)
• M13: 6,798,475 km (0.118 R)
• M14: 8,390,197 km (0.061 R)
• M15: 8,859,635 km (0.09 R)
• M16: 10,110,273 km (0.09 R)
• M17: 10,587,939 km (0.102 R)
• M18: 11,304,363 km (0.09 R)
• M19: 12,650,146 km (0.113 R)
• M20: 16,223,590 km (0.037 R)
• M21: 16,585,168 km (0.057 R)
• M22: 17,174,584 km (0.071 R)
• M23: 18,867,732 km (0.04 R)
• M24: 20,084,113 km (0.113 R)
• M25: 22,671,857 km (0.083 R)
• M26: 23,674,013 km (0.071 R)
• M27: 30,096,548 km (0.119 R)
• M28: 30,752,236 km (0.112 R)
• M29: 32,205,579 km (0.058 R)
• M30: 33,122,465 km (0.045 R)
• M31: 33,354,341 km (0.07 R)
• M32: 38,606,124 km (0.115 R)
• M33: 41,899,372 km (0.115 R)
• M34: 47,845,289 km (0.106 R)
• M35: 49,793,801 km (0.079 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 254 - 18,735 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit