🌌 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: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.53

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.43 AU - 0.63 AU

Year: 140 Days

Day: 15.1 Hours

Environment

Temp: 181 °C

Axial Tilt: 12.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.34

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.51 AU - 0.55 AU

Year: 140 Days

Day: 20 Hours

Environment

Temp: 257 °C

Axial Tilt: 17.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.84 AU - 1.14 AU

Year: 356 Days

Day: 16.5 Hours

Environment

Temp: 33 °C

Axial Tilt: 22.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 35,383,437 km

• M1: 37,549 km (0.071 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.85

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.92 AU - 1.32 AU

Year: 429 Days

Day: 22.5 Hours

Environment

Temp: 33 °C

Axial Tilt: 16.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 35,383,437 km

• M1: 37,399 km (0.11 R)
• M2: 431,739 km (0.108 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.4

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.6 AU - 1.94 AU

Year: 852 Days

Day: 29.5 Hours

Environment

Temp: -44 °C

Axial Tilt: 10.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.39

Radius: 1.14

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.87 AU - 2.39 AU

Year: 1124 Days

Day: 31.8 Hours

Environment

Temp: -66 °C

Axial Tilt: 6.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.89 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 13.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 645.8

Radius: 7.3

Gravity: 12.12 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 12.82 AU - 14.48 AU

Year: 18238 Days

Day: 22.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 35,383,437 km

• M1: 182,958 km (0.077 R)
• M2: 335,249 km (0.066 R)
• M3: 715,527 km (0.116 R)
• M4: 2,110,228 km (0.048 R)
• M5: 2,647,134 km (0.106 R)
• M6: 2,823,361 km (0.059 R)
• M7: 2,895,018 km (0.077 R)
• M8: 2,967,274 km (0.096 R)
• M9: 3,451,223 km (0.026 R)
• M10: 4,491,526 km (0.067 R)
• M11: 4,872,702 km (0.097 R)
• M12: 5,308,630 km (0.032 R)
• M13: 5,666,319 km (0.116 R)
• M14: 6,311,085 km (0.071 R)
• M15: 7,027,510 km (0.113 R)
• M16: 7,173,816 km (0.045 R)
• M17: 7,519,387 km (0.066 R)
• M18: 7,819,780 km (0.061 R)
• M19: 8,797,103 km (0.078 R)
• M20: 9,273,273 km (0.089 R)
• M21: 9,595,507 km (0.091 R)
• M22: 11,432,269 km (0.071 R)
• M23: 11,893,480 km (0.049 R)
• M24: 12,715,370 km (0.098 R)
• M25: 12,834,301 km (0.107 R)
• M26: 13,676,985 km (0.117 R)
• M27: 14,786,702 km (0.096 R)
• M28: 15,669,479 km (0.052 R)
• M29: 16,117,375 km (0.109 R)
• M30: 16,246,030 km (0.057 R)
• M31: 17,485,897 km (0.086 R)
• M32: 17,684,563 km (0.081 R)
• M33: 18,823,750 km (0.112 R)
• M34: 19,095,121 km (0.045 R)
• M35: 19,299,621 km (0.061 R)
• M36: 21,031,665 km (0.096 R)
• M37: 21,242,748 km (0.111 R)
• M38: 21,454,728 km (0.098 R)
• M39: 21,525,488 km (0.097 R)
• M40: 22,023,051 km (0.111 R)
• M41: 22,309,231 km (0.117 R)
• M42: 24,345,857 km (0.083 R)
• M43: 25,836,749 km (0.072 R)
• M44: 26,289,731 km (0.096 R)
• M45: 26,365,428 km (0.116 R)
• M46: 26,897,847 km (0.086 R)
• M47: 27,895,814 km (0.112 R)
• M48: 28,593,838 km (0.1 R)
• M49: 28,827,809 km (0.112 R)
• M50: 30,007,089 km (0.102 R)
• M51: 31,121,892 km (0.06 R)
• M52: 31,926,430 km (0.112 R)
• M53: 32,250,159 km (0.114 R)
• M54: 32,656,467 km (0.118 R)
• M55: 34,879,192 km (0.057 R)
• M56: 37,832,404 km (0.047 R)
• M57: 37,917,974 km (0.057 R)
• M58: 40,252,000 km (0.05 R)
• M59: 40,514,245 km (0.077 R)
• M60: 42,454,380 km (0.045 R)
• M61: 42,899,433 km (0.107 R)
• M62: 43,435,742 km (0.075 R)
• M63: 44,064,053 km (0.11 R)
• M64: 44,244,169 km (0.114 R)
• M65: 44,424,584 km (0.089 R)
• M66: 44,876,369 km (0.109 R)
• M67: 46,515,962 km (0.118 R)
• M68: 47,619,845 km (0.103 R)
• M69: 47,712,146 km (0.096 R)
• M70: 50,511,123 km (0.115 R)
• M71: 50,888,408 km (0.11 R)
• M72: 53,747,074 km (0.072 R)
• M73: 54,132,289 km (0.073 R)
• M74: 55,293,019 km (0.055 R)
• M75: 55,681,823 km (0.114 R)
• M76: 56,071,376 km (0.066 R)
• M77: 56,266,602 km (0.036 R)
• M78: 56,951,461 km (0.069 R)
• M79: 57,934,618 km (0.116 R)
• M80: 61,520,180 km (0.118 R)
• M81: 61,721,538 km (0.118 R)
• M82: 61,923,047 km (0.118 R)
• M83: 62,731,324 km (0.099 R)
• M84: 63,238,162 km (0.052 R)
• M85: 63,543,042 km (0.051 R)
• M86: 64,052,124 km (0.077 R)
• M87: 65,279,424 km (0.042 R)
• M88: 65,484,822 km (0.101 R)
• M89: 65,690,370 km (0.107 R)
• M90: 65,793,144 km (0.117 R)
• M91: 66,102,063 km (0.101 R)
• M92: 66,721,249 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 72.5

Radius: 3

Gravity: 8.06 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 13.91 AU - 14.63 AU

Year: 19495 Days

Day: 15.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (54)

Outer Limit: 35,383,437 km

• M1: 220,956 km (0.108 R)
• M2: 320,139 km (0.107 R)
• M3: 623,075 km (0.117 R)
• M4: 1,171,800 km (0.116 R)
• M5: 1,675,047 km (0.083 R)
• M6: 2,070,285 km (0.071 R)
• M7: 2,493,049 km (0.087 R)
• M8: 2,759,183 km (0.093 R)
• M9: 3,987,082 km (0.114 R)
• M10: 4,038,245 km (0.064 R)
• M11: 4,219,109 km (0.113 R)
• M12: 4,777,408 km (0.108 R)
• M13: 4,831,862 km (0.036 R)
• M14: 5,729,449 km (0.065 R)
• M15: 6,020,417 km (0.119 R)
• M16: 6,079,059 km (0.064 R)
• M17: 6,646,783 km (0.095 R)
• M18: 6,768,406 km (0.098 R)
• M19: 7,356,176 km (0.109 R)
• M20: 7,419,007 km (0.071 R)
• M21: 7,831,748 km (0.1 R)
• M22: 9,012,823 km (0.104 R)
• M23: 9,830,525 km (0.097 R)
• M24: 10,814,131 km (0.072 R)
• M25: 10,921,393 km (0.1 R)
• M26: 11,245,122 km (0.12 R)
• M27: 11,390,083 km (0.12 R)
• M28: 12,086,910 km (0.058 R)
• M29: 12,384,460 km (0.082 R)
• M30: 12,910,895 km (0.074 R)
• M31: 13,907,665 km (0.109 R)
• M32: 14,376,056 km (0.086 R)
• M33: 15,488,915 km (0.112 R)
• M34: 16,794,306 km (0.094 R)
• M35: 17,922,872 km (0.116 R)
• M36: 19,248,459 km (0.042 R)
• M37: 19,291,693 km (0.108 R)
• M38: 20,296,242 km (0.094 R)
• M39: 20,738,154 km (0.057 R)
• M40: 21,094,048 km (0.067 R)
• M41: 22,037,861 km (0.051 R)
• M42: 23,133,216 km (0.098 R)
• M43: 23,363,597 km (0.112 R)
• M44: 24,809,161 km (0.067 R)
• M45: 25,234,169 km (0.096 R)
• M46: 25,566,426 km (0.115 R)
• M47: 26,283,299 km (0.06 R)
• M48: 26,764,854 km (0.08 R)
• M49: 29,465,096 km (0.101 R)
• M50: 31,075,517 km (0.117 R)
• M51: 32,921,106 km (0.062 R)
• M52: 33,076,388 km (0.092 R)
• M53: 34,013,918 km (0.113 R)
• M54: 35,171,507 km (0.097 R)

Kuiper Belt

Range: 30.3 - 50.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 355 - 15,750 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit