🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.25

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.69 AU - 0.83 AU

Year: 246 Days

Day: 17.5 Hours

Environment

Temp: 131 °C

Axial Tilt: 31.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.7

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.93 AU - 1.45 AU

Year: 481 Days

Day: 27.4 Hours

Environment

Temp: 6 °C

Axial Tilt: 21 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 2.08 AU - 3.28 AU

Year: 1627 Days

Day: 37.9 Hours

Environment

Temp: -91 °C

Axial Tilt: 23.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.79 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 4.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491

Radius: 13.7

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.88 AU - 5.92 AU

Year: 4023 Days

Day: 13.4 Hours

Environment

Temp: -131 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,002,262 km

• M1: 171,589 km (0.083 R)
• M2: 959,670 km (0.105 R)
• M3: 1,423,723 km (0.087 R)
• M4: 1,853,069 km (0.096 R)
• M5: 2,626,041 km (0.092 R)
• M6: 3,053,592 km (0.089 R)
• M7: 3,509,117 km (0.053 R)
• M8: 4,721,458 km (0.101 R)
• M9: 5,568,033 km (0.116 R)
• M10: 6,543,112 km (0.045 R)
• M11: 7,760,390 km (0.109 R)
• M12: 9,573,665 km (0.072 R)
• M13: 11,655,021 km (0.054 R)
• M14: 12,548,269 km (0.091 R)
• M15: 14,623,491 km (0.115 R)
• M16: 16,309,758 km (0.118 R)
• M17: 17,256,713 km (0.116 R)
• M18: 18,298,961 km (0.064 R)
• M19: 18,956,294 km (0.065 R)
• M20: 22,414,548 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.8

Radius: 13.6

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.94 AU - 6.22 AU

Year: 4246 Days

Day: 14.1 Hours

Environment

Temp: -133 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 66,002,262 km

• M1: 172,636 km (0.071 R)
• M2: 635,193 km (0.078 R)
• M3: 1,081,593 km (0.088 R)
• M4: 1,527,993 km (0.092 R)
• M5: 1,951,355 km (0.047 R)
• M6: 2,549,148 km (0.058 R)
• M7: 3,210,819 km (0.119 R)
• M8: 3,791,109 km (0.051 R)
• M9: 4,277,302 km (0.101 R)
• M10: 5,349,620 km (0.07 R)
• M11: 6,440,039 km (0.1 R)
• M12: 7,334,634 km (0.046 R)
• M13: 8,238,056 km (0.061 R)
• M14: 9,292,421 km (0.112 R)
• M15: 10,691,610 km (0.054 R)
• M16: 11,577,978 km (0.097 R)
• M17: 12,274,356 km (0.078 R)
• M18: 13,346,224 km (0.058 R)
• M19: 14,216,435 km (0.116 R)
• M20: 17,114,445 km (0.112 R)
• M21: 20,519,442 km (0.084 R)
• M22: 21,402,219 km (0.034 R)
• M23: 22,310,129 km (0.111 R)
• M24: 22,953,549 km (0.107 R)
• M25: 24,202,692 km (0.086 R)
• M26: 24,730,174 km (0.044 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 666.5

Radius: 7.4

Gravity: 12.17 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 10.52 AU - 15.02 AU

Year: 16924 Days

Day: 23.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 66,002,262 km

• M1: 92,003 km (0.104 R)
• M2: 362,775 km (0.112 R)
• M3: 689,497 km (0.097 R)
• M4: 1,303,446 km (0.083 R)
• M5: 1,602,642 km (0.074 R)
• M6: 1,947,315 km (0.087 R)
• M7: 2,217,489 km (0.093 R)
• M8: 3,080,220 km (0.083 R)
• M9: 4,435,577 km (0.106 R)
• M10: 5,447,606 km (0.062 R)
• M11: 6,395,309 km (0.079 R)
• M12: 6,952,561 km (0.099 R)
• M13: 7,448,777 km (0.103 R)
• M14: 7,682,150 km (0.056 R)
• M15: 8,664,559 km (0.084 R)
• M16: 10,996,191 km (0.079 R)
• M17: 13,508,688 km (0.116 R)
• M18: 15,608,294 km (0.09 R)
• M19: 15,990,965 km (0.096 R)
• M20: 19,901,304 km (0.061 R)
• M21: 21,085,969 km (0.099 R)
• M22: 23,196,646 km (0.085 R)
• M23: 28,852,044 km (0.106 R)
• M24: 32,181,045 km (0.104 R)
• M25: 36,423,042 km (0.117 R)
• M26: 37,504,785 km (0.085 R)
• M27: 40,016,832 km (0.119 R)
• M28: 40,734,004 km (0.049 R)
• M29: 46,152,888 km (0.105 R)
• M30: 47,739,224 km (0.03 R)
• M31: 55,506,495 km (0.12 R)
• M32: 62,910,542 km (0.079 R)
• M33: 64,859,354 km (0.112 R)
• M34: 65,451,761 km (0.091 R)
• M35: 66,047,610 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 501.3

Radius: 3.2

Gravity: 48.96 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 11.24 AU - 16.24 AU

Year: 18888 Days

Day: 24.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 66,002,262 km

• M1: 40,391 km (0.072 R)
• M2: 471,084 km (0.104 R)
• M3: 723,156 km (0.101 R)
• M4: 1,267,393 km (0.084 R)
• M5: 2,283,312 km (0.115 R)
• M6: 2,655,362 km (0.052 R)
• M7: 3,462,892 km (0.073 R)
• M8: 4,198,315 km (0.094 R)
• M9: 4,519,800 km (0.106 R)
• M10: 4,822,886 km (0.069 R)
• M11: 4,961,862 km (0.071 R)
• M12: 7,198,799 km (0.091 R)
• M13: 8,636,285 km (0.041 R)
• M14: 9,261,305 km (0.047 R)
• M15: 9,639,488 km (0.073 R)
• M16: 12,384,609 km (0.11 R)
• M17: 12,843,426 km (0.063 R)
• M18: 14,938,544 km (0.077 R)
• M19: 18,154,749 km (0.051 R)
• M20: 18,406,672 km (0.09 R)
• M21: 24,762,936 km (0.104 R)
• M22: 26,445,612 km (0.105 R)
• M23: 27,756,539 km (0.095 R)
• M24: 30,153,844 km (0.103 R)
• M25: 32,438,503 km (0.088 R)
• M26: 33,058,437 km (0.058 R)
• M27: 34,965,211 km (0.101 R)
• M28: 38,304,236 km (0.115 R)
• M29: 43,028,536 km (0.101 R)
• M30: 44,381,200 km (0.054 R)
• M31: 47,171,051 km (0.098 R)
• M32: 47,966,313 km (0.116 R)
• M33: 48,286,902 km (0.077 R)
• M34: 49,094,580 km (0.104 R)
• M35: 49,747,126 km (0.082 R)
• M36: 59,685,062 km (0.112 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 352 - 17,960 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit