🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.15

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.89 AU - 0.89 AU

Year: 302 Days

Day: 37.9 Hours

Environment

Temp: 81 °C

Axial Tilt: 44.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 44,630,396 km

• M1: 288,724 km (0.114 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.15

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.93 AU - 0.97 AU

Year: 333 Days

Day: 17.4 Hours

Environment

Temp: 149 °C

Axial Tilt: 7.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 44,630,396 km

• M1: 220,806 km (0.103 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.64

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.08 AU - 1.28 AU

Year: 461 Days

Day: 26.4 Hours

Environment

Temp: 21 °C

Axial Tilt: 39.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 44,630,396 km

• M1: 50,414 km (0.106 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.08

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.16 AU - 1.64 AU

Year: 596 Days

Day: 37.8 Hours

Environment

Temp: -22 °C

Axial Tilt: 38 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 44,630,396 km

• M1: 602,580 km (0.059 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.39 AU - 1.47 AU

Year: 615 Days

Day: 28.1 Hours

Environment

Temp: -11 °C

Axial Tilt: 34.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 2.78 AU - 4 AU

Year: 2246 Days

Day: 15.4 Hours

Environment

Temp: -111 °C

Axial Tilt: 9.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.92 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 6.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31

Radius: 10.7

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 5.11 AU - 7.77 AU

Year: 5882 Days

Day: 8.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 44,630,396 km

• M1: 137,331 km (0.061 R)
• M2: 294,409 km (0.08 R)
• M3: 362,176 km (0.117 R)
• M4: 437,424 km (0.101 R)
• M5: 676,033 km (0.117 R)
• M6: 906,264 km (0.084 R)
• M7: 1,023,549 km (0.101 R)
• M8: 1,146,368 km (0.085 R)
• M9: 1,390,213 km (0.053 R)
• M10: 1,527,245 km (0.068 R)
• M11: 1,833,771 km (0.088 R)
• M12: 1,946,717 km (0.119 R)
• M13: 2,062,057 km (0.05 R)
• M14: 2,289,595 km (0.1 R)
• M15: 2,556,927 km (0.063 R)
• M16: 2,867,043 km (0.09 R)
• M17: 3,234,755 km (0.088 R)
• M18: 3,535,147 km (0.094 R)
• M19: 3,629,394 km (0.087 R)
• M20: 3,844,665 km (0.093 R)
• M21: 3,941,754 km (0.04 R)
• M22: 4,200,409 km (0.116 R)
• M23: 5,022,749 km (0.04 R)
• M24: 5,289,781 km (0.075 R)
• M25: 5,384,476 km (0.084 R)
• M26: 5,978,081 km (0.068 R)
• M27: 6,563,607 km (0.118 R)
• M28: 6,723,826 km (0.045 R)
• M29: 7,242,183 km (0.118 R)
• M30: 7,332,390 km (0.057 R)
• M31: 7,620,366 km (0.046 R)
• M32: 7,835,039 km (0.109 R)
• M33: 8,067,215 km (0.04 R)
• M34: 8,286,076 km (0.034 R)
• M35: 8,825,676 km (0.102 R)
• M36: 9,018,807 km (0.047 R)
• M37: 9,180,821 km (0.117 R)
• M38: 9,507,842 km (0.112 R)
• M39: 9,788,787 km (0.039 R)
• M40: 10,750,851 km (0.114 R)
• M41: 10,957,296 km (0.094 R)
• M42: 11,095,524 km (0.096 R)
• M43: 11,514,099 km (0.116 R)
• M44: 11,919,958 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 127

Radius: 4.3

Gravity: 6.87 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 13.96 AU - 16 AU

Year: 20866 Days

Day: 15.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 44,630,396 km

• M1: 85,420 km (0.103 R)
• M2: 170,242 km (0.088 R)
• M3: 229,633 km (0.118 R)
• M4: 410,048 km (0.116 R)
• M5: 493,224 km (0.118 R)
• M6: 537,056 km (0.117 R)
• M7: 1,297,462 km (0.083 R)
• M8: 1,613,712 km (0.049 R)
• M9: 1,724,265 km (0.096 R)
• M10: 2,118,904 km (0.099 R)
• M11: 2,289,147 km (0.094 R)
• M12: 2,363,646 km (0.089 R)
• M13: 2,464,027 km (0.082 R)
• M14: 3,041,175 km (0.098 R)
• M15: 3,095,629 km (0.094 R)
• M16: 3,543,226 km (0.066 R)
• M17: 3,891,938 km (0.099 R)
• M18: 4,190,984 km (0.105 R)
• M19: 4,221,353 km (0.108 R)
• M20: 4,779,353 km (0.086 R)
• M21: 4,842,782 km (0.099 R)
• M22: 4,874,647 km (0.034 R)
• M23: 5,261,956 km (0.08 R)
• M24: 5,294,568 km (0.069 R)
• M25: 5,327,479 km (0.051 R)
• M26: 5,525,547 km (0.089 R)
• M27: 6,693,458 km (0.055 R)
• M28: 7,305,014 km (0.117 R)
• M29: 7,488,421 km (0.109 R)
• M30: 7,896,823 km (0.045 R)
• M31: 10,167,569 km (0.099 R)
• M32: 10,331,079 km (0.078 R)
• M33: 10,372,069 km (0.115 R)
• M34: 10,785,408 km (0.094 R)
• M35: 12,100,373 km (0.089 R)
• M36: 12,230,224 km (0.094 R)
• M37: 12,273,757 km (0.039 R)
• M38: 12,447,889 km (0.029 R)
• M39: 12,622,769 km (0.078 R)
• M40: 12,710,583 km (0.11 R)
• M41: 12,886,809 km (0.11 R)
• M42: 13,599,643 km (0.054 R)
• M43: 13,960,922 km (0.111 R)
• M44: 14,462,673 km (0.087 R)
• M45: 14,646,679 km (0.106 R)
• M46: 14,924,033 km (0.04 R)
• M47: 15,483,978 km (0.1 R)
• M48: 15,672,172 km (0.109 R)
• M49: 15,813,841 km (0.103 R)
• M50: 16,050,804 km (0.09 R)
• M51: 16,145,949 km (0.066 R)
• M52: 16,480,300 km (0.101 R)
• M53: 16,817,045 km (0.117 R)
• M54: 16,865,365 km (0.047 R)
• M55: 17,693,239 km (0.114 R)
• M56: 17,840,743 km (0.06 R)
• M57: 18,584,244 km (0.088 R)
• M58: 18,884,487 km (0.105 R)
• M59: 19,642,051 km (0.12 R)
• M60: 19,692,914 km (0.098 R)
• M61: 19,794,641 km (0.091 R)
• M62: 19,998,991 km (0.064 R)
• M63: 20,152,479 km (0.034 R)
• M64: 22,450,302 km (0.089 R)
• M65: 23,252,296 km (0.1 R)
• M66: 24,774,455 km (0.117 R)
• M67: 25,325,872 km (0.104 R)
• M68: 25,769,879 km (0.108 R)
• M69: 26,721,920 km (0.106 R)
• M70: 27,856,620 km (0.082 R)
• M71: 28,142,800 km (0.094 R)
• M72: 28,372,433 km (0.099 R)
• M73: 29,704,752 km (0.09 R)
• M74: 30,172,843 km (0.084 R)
• M75: 30,349,070 km (0.081 R)
• M76: 31,770,848 km (0.032 R)
• M77: 33,639,325 km (0.079 R)
• M78: 33,821,984 km (0.089 R)
• M79: 33,882,871 km (0.073 R)
• M80: 33,943,906 km (0.077 R)
• M81: 35,110,022 km (0.111 R)
• M82: 35,295,374 km (0.097 R)
• M83: 36,664,344 km (0.089 R)
• M84: 37,418,317 km (0.067 R)
• M85: 39,389,568 km (0.062 R)
• M86: 39,582,250 km (0.097 R)
• M87: 40,226,269 km (0.052 R)
• M88: 40,290,895 km (0.11 R)
• M89: 40,873,878 km (0.033 R)
• M90: 42,639,582 km (0.032 R)
• M91: 42,705,405 km (0.081 R)
• M92: 44,363,249 km (0.113 R)
• M93: 44,563,560 km (0.084 R)

Kuiper Belt

Range: 30.5 - 59.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 530 - 17,668 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit