🌌 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: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.33

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.43 AU - 0.65 AU

Year: 260 Days

Day: 35.3 Hours

Environment

Temp: -111 °C

Axial Tilt: 34.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.47 AU - 0.65 AU

Year: 275 Days

Day: 26.3 Hours

Environment

Temp: -128 °C

Axial Tilt: 7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407.1

Radius: 8.2

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.94 AU - 1.07 AU

Year: 656 Days

Day: 8.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,464,991 km

• M1: 102,325 km (0.113 R)
• M2: 373,995 km (0.092 R)
• M3: 682,166 km (0.075 R)
• M4: 1,857,856 km (0.033 R)
• M5: 2,334,475 km (0.093 R)
• M6: 2,602,105 km (0.106 R)
• M7: 3,430,728 km (0.056 R)
• M8: 4,206,543 km (0.085 R)
• M9: 4,499,605 km (0.093 R)
• M10: 5,847,033 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 498.9

Radius: 14.2

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.16 AU - 1.52 AU

Year: 1018 Days

Day: 5.5 Hours

Environment

Temp: -166 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,464,991 km

• M1: 176,675 km (0.064 R)
• M2: 1,068,428 km (0.1 R)
• M3: 1,604,886 km (0.104 R)
• M4: 2,571,737 km (0.075 R)
• M5: 3,477,702 km (0.068 R)
• M6: 4,289,569 km (0.082 R)
• M7: 5,005,994 km (0.092 R)
• M8: 6,526,506 km (0.04 R)
• M9: 8,751,475 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.6

Radius: 12.7

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.56 AU - 2.52 AU

Year: 1911 Days

Day: 14.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,464,991 km

• M1: 157,975 km (0.092 R)
• M2: 1,267,692 km (0.113 R)
• M3: 2,226,764 km (0.105 R)
• M4: 3,158,460 km (0.052 R)
• M5: 3,903,158 km (0.05 R)
• M6: 5,255,972 km (0.09 R)
• M7: 6,214,744 km (0.075 R)
• M8: 7,636,523 km (0.11 R)
• M9: 9,207,300 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.6

Radius: 8.2

Gravity: 5.85 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 2.89 AU - 3.31 AU

Year: 3581 Days

Day: 10.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 55,464,991 km

• M1: 117,584 km (0.091 R)
• M2: 395,986 km (0.095 R)
• M3: 922,869 km (0.112 R)
• M4: 1,278,763 km (0.11 R)
• M5: 1,572,573 km (0.056 R)
• M6: 3,044,765 km (0.073 R)
• M7: 3,746,080 km (0.1 R)
• M8: 5,416,640 km (0.115 R)
• M9: 6,087,885 km (0.055 R)
• M10: 6,443,629 km (0.09 R)
• M11: 10,337,662 km (0.047 R)
• M12: 10,726,317 km (0.089 R)
• M13: 11,327,551 km (0.119 R)
• M14: 12,641,170 km (0.09 R)
• M15: 15,216,796 km (0.104 R)
• M16: 15,821,920 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.5

Radius: 15

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 2.89 AU - 3.75 AU

Year: 3968 Days

Day: 10.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,464,991 km

• M1: 191,186 km (0.072 R)
• M2: 1,048,531 km (0.086 R)
• M3: 2,023,461 km (0.114 R)
• M4: 2,491,253 km (0.082 R)
• M5: 3,159,507 km (0.104 R)
• M6: 5,763,258 km (0.119 R)
• M7: 8,529,173 km (0.082 R)
• M8: 14,010,289 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 352.2

Radius: 6.1

Gravity: 9.47 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 8.37 AU - 9.39 AU

Year: 17359 Days

Day: 17.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 55,464,991 km

• M1: 75,846 km (0.06 R)
• M2: 266,583 km (0.111 R)
• M3: 505,790 km (0.072 R)
• M4: 1,027,139 km (0.067 R)
• M5: 1,304,793 km (0.087 R)
• M6: 1,873,863 km (0.098 R)
• M7: 3,286,216 km (0.097 R)
• M8: 3,567,909 km (0.116 R)
• M9: 4,327,866 km (0.112 R)
• M10: 4,858,789 km (0.106 R)
• M11: 5,502,509 km (0.094 R)
• M12: 6,278,323 km (0.117 R)
• M13: 6,999,535 km (0.068 R)
• M14: 10,995,144 km (0.097 R)
• M15: 11,861,316 km (0.085 R)
• M16: 12,586,417 km (0.075 R)
• M17: 13,794,270 km (0.097 R)
• M18: 14,258,173 km (0.08 R)
• M19: 14,800,914 km (0.111 R)
• M20: 15,147,084 km (0.119 R)
• M21: 16,291,358 km (0.083 R)
• M22: 16,586,066 km (0.068 R)
• M23: 17,186,402 km (0.106 R)
• M24: 17,879,040 km (0.118 R)
• M25: 18,831,081 km (0.081 R)
• M26: 19,319,667 km (0.086 R)
• M27: 20,152,628 km (0.119 R)
• M28: 24,103,508 km (0.119 R)
• M29: 27,697,148 km (0.1 R)
• M30: 31,976,096 km (0.066 R)
• M31: 43,913,707 km (0.118 R)
• M32: 46,670,945 km (0.119 R)
• M33: 53,982,840 km (0.085 R)
• M34: 55,133,248 km (0.04 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 253 - 14,748 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit