🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.53 AU - 0.85 AU

Year: 213 Days

Day: 36.5 Hours

Environment

Temp: 134 °C

Axial Tilt: 41.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.23

Radius: 0.56

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.85 AU - 0.85 AU

Year: 291 Days

Day: 35.8 Hours

Environment

Temp: 135 °C

Axial Tilt: 135.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.52

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.72 AU - 1.12 AU

Year: 327 Days

Day: 19.6 Hours

Environment

Temp: 37 °C

Axial Tilt: 9.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.83

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.99 AU - 1.11 AU

Year: 399 Days

Day: 45.9 Hours

Environment

Temp: 15 °C

Axial Tilt: 33.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.35

Radius: 0.66

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.07 AU - 1.77 AU

Year: 628 Days

Day: 15.1 Hours

Environment

Temp: -38 °C

Axial Tilt: 21.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.1

Radius: 1.04

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 2.06 AU - 2.96 AU

Year: 1475 Days

Day: 21.6 Hours

Environment

Temp: -95 °C

Axial Tilt: 3.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 62,307,529 km

• M1: 285,283 km (0.065 R)
• M2: 1,040,154 km (0.096 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.7

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 3.29 AU - 3.49 AU

Year: 2315 Days

Day: 17.6 Hours

Environment

Temp: -122 °C

Axial Tilt: 33.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.13

Radius: 0.44

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 3.55 AU - 4.75 AU

Year: 3135 Days

Day: 38.4 Hours

Environment

Temp: -128 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 62,307,529 km

• M1: 100,231 km (0.096 R)
• M2: 242,797 km (0.071 R)

Asteroid Belt

Center: 7.29 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 10.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.4

Radius: 9.2

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 9.76 AU - 11.1 AU

Year: 12492 Days

Day: 9.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 62,307,529 km

• M1: 126,261 km (0.119 R)
• M2: 200,312 km (0.094 R)
• M3: 277,504 km (0.056 R)
• M4: 394,789 km (0.086 R)
• M5: 509,830 km (0.069 R)
• M6: 606,320 km (0.101 R)
• M7: 1,451,548 km (0.061 R)
• M8: 1,902,885 km (0.099 R)
• M9: 2,010,296 km (0.112 R)
• M10: 2,357,513 km (0.079 R)
• M11: 2,421,541 km (0.096 R)
• M12: 2,643,694 km (0.08 R)
• M13: 3,051,797 km (0.11 R)
• M14: 3,378,369 km (0.119 R)
• M15: 3,671,281 km (0.09 R)
• M16: 3,730,971 km (0.059 R)
• M17: 4,157,325 km (0.105 R)
• M18: 4,250,823 km (0.085 R)
• M19: 4,344,921 km (0.117 R)
• M20: 4,583,230 km (0.11 R)
• M21: 4,696,027 km (0.114 R)
• M22: 4,875,095 km (0.081 R)
• M23: 5,307,134 km (0.11 R)
• M24: 5,682,475 km (0.053 R)
• M25: 5,873,362 km (0.084 R)
• M26: 6,101,648 km (0.046 R)
• M27: 6,315,125 km (0.09 R)
• M28: 6,422,685 km (0.084 R)
• M29: 6,840,961 km (0.111 R)
• M30: 7,362,160 km (0.104 R)
• M31: 7,934,671 km (0.111 R)
• M32: 8,442,406 km (0.098 R)
• M33: 8,640,474 km (0.036 R)
• M34: 9,223,756 km (0.114 R)
• M35: 9,366,472 km (0.045 R)
• M36: 9,840,548 km (0.082 R)
• M37: 10,280,216 km (0.106 R)
• M38: 11,048,850 km (0.106 R)
• M39: 11,791,753 km (0.1 R)
• M40: 12,035,597 km (0.086 R)
• M41: 12,959,065 km (0.076 R)
• M42: 14,068,782 km (0.064 R)
• M43: 14,682,732 km (0.098 R)

Planet 10 - Ice Giant

Semi-Major Axis: 17.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 199.3

Radius: 7.2

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 15.44 AU - 19.85 AU

Year: 27476 Days

Day: 17.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 62,307,529 km

• M1: 91,554 km (0.079 R)
• M2: 227,389 km (0.076 R)
• M3: 365,617 km (0.069 R)
• M4: 514,467 km (0.107 R)
• M5: 663,766 km (0.086 R)
• M6: 892,052 km (0.099 R)
• M7: 1,550,432 km (0.099 R)
• M8: 2,972,210 km (0.118 R)
• M9: 3,039,530 km (0.114 R)
• M10: 3,418,760 km (0.055 R)
• M11: 3,524,825 km (0.068 R)
• M12: 3,740,246 km (0.099 R)
• M13: 4,071,456 km (0.113 R)
• M14: 4,221,802 km (0.108 R)
• M15: 4,644,415 km (0.091 R)
• M16: 5,000,159 km (0.111 R)
• M17: 7,359,168 km (0.118 R)
• M18: 7,496,499 km (0.119 R)
• M19: 8,577,194 km (0.032 R)
• M20: 9,111,109 km (0.107 R)
• M21: 9,806,140 km (0.073 R)
• M22: 10,621,299 km (0.091 R)
• M23: 11,352,234 km (0.104 R)
• M24: 11,510,958 km (0.093 R)
• M25: 12,261,490 km (0.095 R)
• M26: 12,370,098 km (0.091 R)
• M27: 13,416,835 km (0.078 R)
• M28: 13,584,683 km (0.041 R)
• M29: 14,606,437 km (0.106 R)
• M30: 15,126,589 km (0.097 R)
• M31: 15,652,874 km (0.112 R)
• M32: 16,066,213 km (0.079 R)
• M33: 16,423,453 km (0.072 R)
• M34: 17,510,880 km (0.08 R)
• M35: 17,878,442 km (0.077 R)
• M36: 18,124,979 km (0.095 R)
• M37: 18,186,763 km (0.099 R)
• M38: 18,372,563 km (0.084 R)
• M39: 18,496,879 km (0.076 R)
• M40: 18,683,727 km (0.075 R)
• M41: 18,871,173 km (0.078 R)
• M42: 19,881,707 km (0.058 R)
• M43: 20,651,238 km (0.071 R)
• M44: 21,299,745 km (0.029 R)
• M45: 21,430,344 km (0.084 R)
• M46: 23,017,278 km (0.045 R)
• M47: 23,757,189 km (0.112 R)
• M48: 23,892,575 km (0.107 R)
• M49: 24,436,663 km (0.115 R)
• M50: 24,641,612 km (0.062 R)
• M51: 25,536,955 km (0.117 R)
• M52: 25,814,609 km (0.072 R)
• M53: 26,093,160 km (0.042 R)
• M54: 27,359,207 km (0.083 R)
• M55: 29,078,236 km (0.108 R)
• M56: 29,513,416 km (0.101 R)
• M57: 29,804,683 km (0.099 R)
• M58: 30,537,114 km (0.04 R)
• M59: 31,870,480 km (0.087 R)
• M60: 32,319,124 km (0.092 R)
• M61: 32,619,517 km (0.104 R)
• M62: 33,753,768 km (0.07 R)
• M63: 33,905,909 km (0.113 R)
• M64: 34,134,644 km (0.092 R)
• M65: 35,363,291 km (0.072 R)
• M66: 35,750,151 km (0.077 R)
• M67: 41,393,581 km (0.086 R)
• M68: 41,475,112 km (0.102 R)
• M69: 43,776,975 km (0.079 R)
• M70: 44,692,663 km (0.086 R)
• M71: 45,698,709 km (0.111 R)
• M72: 47,306,886 km (0.109 R)
• M73: 48,503,669 km (0.109 R)
• M74: 51,014,220 km (0.103 R)
• M75: 51,714,189 km (0.079 R)
• M76: 52,505,412 km (0.095 R)
• M77: 52,770,050 km (0.118 R)
• M78: 54,545,777 km (0.113 R)
• M79: 55,261,453 km (0.105 R)
• M80: 55,530,730 km (0.106 R)
• M81: 55,620,488 km (0.081 R)
• M82: 56,340,952 km (0.09 R)
• M83: 57,881,959 km (0.108 R)
• M84: 58,155,424 km (0.069 R)
• M85: 59,436,880 km (0.102 R)
• M86: 59,804,741 km (0.111 R)
• M87: 59,989,045 km (0.072 R)
• M88: 60,265,652 km (0.066 R)
• M89: 60,357,954 km (0.053 R)
• M90: 60,727,760 km (0.055 R)
• M91: 62,120,965 km (0.092 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 165 - 17,632 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit