🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.98

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.57 AU - 0.57 AU

Year: 274 Days

Day: 31.4 Hours

Environment

Temp: -120 °C

Axial Tilt: 11.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.62 AU - 0.72 AU

Year: 349 Days

Day: 34.1 Hours

Environment

Temp: -125 °C

Axial Tilt: 21.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,642,888 km

• M1: 621,729 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.4

Radius: 13.8

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.55 AU - 0.83 AU

Year: 364 Days

Day: 9.8 Hours

Environment

Temp: -135 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,642,888 km

• M1: 171,589 km (0.118 R)
• M2: 759,658 km (0.062 R)
• M3: 1,521,710 km (0.066 R)
• M4: 2,077,615 km (0.09 R)
• M5: 2,534,637 km (0.107 R)
• M6: 3,235,503 km (0.097 R)
• M7: 5,337,802 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104

Radius: 10.7

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.79 AU - 0.83 AU

Year: 464 Days

Day: 9.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 66,642,888 km

• M1: 133,142 km (0.033 R)
• M2: 476,768 km (0.1 R)
• M3: 1,068,428 km (0.112 R)
• M4: 1,490,444 km (0.085 R)
• M5: 2,788,355 km (0.093 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 287.4

Radius: 4

Gravity: 17.96 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 6.48 AU - 8.34 AU

Year: 12825 Days

Day: 17 Hours

Environment

Temp: -222 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 66,642,888 km

• M1: 50,115 km (0.049 R)
• M2: 226,342 km (0.107 R)
• M3: 368,310 km (0.114 R)
• M4: 494,122 km (0.08 R)
• M5: 1,423,125 km (0.034 R)
• M6: 2,737,192 km (0.075 R)
• M7: 3,073,638 km (0.086 R)
• M8: 4,728,789 km (0.072 R)
• M9: 4,966,649 km (0.067 R)
• M10: 5,338,250 km (0.118 R)
• M11: 6,823,458 km (0.114 R)
• M12: 9,987,453 km (0.081 R)
• M13: 10,378,951 km (0.083 R)
• M14: 14,686,322 km (0.061 R)
• M15: 17,194,181 km (0.026 R)
• M16: 17,544,090 km (0.071 R)
• M17: 18,769,297 km (0.062 R)
• M18: 20,050,303 km (0.051 R)
• M19: 25,576,748 km (0.107 R)
• M20: 26,032,573 km (0.066 R)
• M21: 26,401,032 km (0.093 R)
• M22: 26,960,379 km (0.117 R)
• M23: 29,177,718 km (0.08 R)
• M24: 34,632,805 km (0.095 R)
• M25: 35,641,094 km (0.058 R)
• M26: 37,015,749 km (0.101 R)
• M27: 37,364,911 km (0.08 R)
• M28: 37,833,750 km (0.099 R)
• M29: 38,425,260 km (0.094 R)
• M30: 40,237,040 km (0.074 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 997.5

Radius: 5.6

Gravity: 31.81 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 7.16 AU - 8.24 AU

Year: 13585 Days

Day: 21 Hours

Environment

Temp: -221 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 66,642,888 km

• M1: 69,862 km (0.085 R)
• M2: 303,384 km (0.09 R)
• M3: 563,236 km (0.072 R)
• M4: 1,013,077 km (0.086 R)
• M5: 1,322,595 km (0.098 R)
• M6: 1,530,985 km (0.071 R)
• M7: 2,170,366 km (0.1 R)
• M8: 2,354,970 km (0.073 R)
• M9: 2,572,485 km (0.08 R)
• M10: 2,924,040 km (0.096 R)
• M11: 3,254,053 km (0.101 R)
• M12: 3,441,798 km (0.102 R)
• M13: 3,988,429 km (0.108 R)
• M14: 4,459,363 km (0.08 R)
• M15: 4,896,937 km (0.078 R)
• M16: 9,004,894 km (0.112 R)
• M17: 9,322,790 km (0.11 R)
• M18: 11,698,404 km (0.095 R)
• M19: 12,924,957 km (0.03 R)
• M20: 15,254,944 km (0.116 R)
• M21: 17,115,642 km (0.029 R)
• M22: 18,606,684 km (0.071 R)
• M23: 19,559,323 km (0.092 R)
• M24: 20,182,249 km (0.102 R)
• M25: 20,362,514 km (0.084 R)
• M26: 21,939,575 km (0.08 R)
• M27: 23,796,384 km (0.089 R)
• M28: 28,043,018 km (0.037 R)
• M29: 36,374,573 km (0.071 R)
• M30: 36,775,944 km (0.071 R)
• M31: 42,266,485 km (0.119 R)
• M32: 43,606,732 km (0.082 R)
• M33: 46,371,750 km (0.113 R)
• M34: 48,278,674 km (0.073 R)
• M35: 50,072,053 km (0.077 R)
• M36: 50,735,071 km (0.032 R)
• M37: 51,909,414 km (0.092 R)
• M38: 52,588,588 km (0.072 R)
• M39: 55,540,902 km (0.102 R)
• M40: 57,147,883 km (0.107 R)
• M41: 61,773,748 km (0.096 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 544 - 16,577 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit