🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.49

Radius: 0.75

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.78 AU - 1.22 AU

Year: 369 Days

Day: 21.8 Hours

Environment

Temp: 29 °C

Axial Tilt: 43.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 45,891,435 km

• M1: 21,991 km (0.112 R)
• M2: 278,701 km (0.116 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.71

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.84 AU - 1.24 AU

Year: 391 Days

Day: 22.8 Hours

Environment

Temp: 7 °C

Axial Tilt: 33.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.97 AU - 1.25 AU

Year: 431 Days

Day: 32 Hours

Environment

Temp: 11 °C

Axial Tilt: 47.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 45,891,435 km

• M1: 377,585 km (0.113 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.52 AU - 1.66 AU

Year: 740 Days

Day: 18.1 Hours

Environment

Temp: -54 °C

Axial Tilt: 46.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.56

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.6 AU - 2.38 AU

Year: 1036 Days

Day: 27.5 Hours

Environment

Temp: -60 °C

Axial Tilt: 27.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,891,435 km

• M1: 779,854 km (0.069 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.11

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 3.38 AU - 3.44 AU

Year: 2323 Days

Day: 35.1 Hours

Environment

Temp: -118 °C

Axial Tilt: 0.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.05

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 4.06 AU - 4.42 AU

Year: 3221 Days

Day: 45.2 Hours

Environment

Temp: -128 °C

Axial Tilt: 16.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.37 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 12.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 266.6

Radius: 3.6

Gravity: 20.57 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 12.35 AU - 12.65 AU

Year: 16306 Days

Day: 20.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 45,891,435 km

• M1: 46,375 km (0.092 R)
• M2: 202,855 km (0.04 R)
• M3: 236,215 km (0.12 R)
• M4: 635,791 km (0.117 R)
• M5: 792,570 km (0.081 R)
• M6: 1,203,066 km (0.042 R)
• M7: 1,309,281 km (0.117 R)
• M8: 1,622,688 km (0.042 R)
• M9: 1,645,876 km (0.107 R)
• M10: 1,811,929 km (0.116 R)
• M11: 2,058,317 km (0.047 R)
• M12: 2,108,881 km (0.049 R)
• M13: 2,341,356 km (0.08 R)
• M14: 2,636,662 km (0.084 R)
• M15: 2,691,565 km (0.106 R)
• M16: 3,144,846 km (0.111 R)
• M17: 3,173,868 km (0.03 R)
• M18: 3,930,385 km (0.114 R)
• M19: 3,993,216 km (0.097 R)
• M20: 4,151,790 km (0.118 R)
• M21: 4,247,832 km (0.089 R)
• M22: 4,312,308 km (0.088 R)
• M23: 4,507,833 km (0.107 R)
• M24: 4,540,595 km (0.087 R)
• M25: 4,706,199 km (0.074 R)
• M26: 5,111,310 km (0.085 R)
• M27: 5,318,055 km (0.091 R)
• M28: 5,990,796 km (0.082 R)
• M29: 6,540,569 km (0.075 R)
• M30: 7,414,519 km (0.101 R)
• M31: 7,727,029 km (0.039 R)
• M32: 7,924,498 km (0.113 R)
• M33: 8,243,890 km (0.04 R)
• M34: 8,284,132 km (0.038 R)
• M35: 8,730,831 km (0.108 R)
• M36: 9,563,044 km (0.067 R)
• M37: 9,690,052 km (0.041 R)
• M38: 9,732,538 km (0.086 R)
• M39: 9,817,659 km (0.113 R)
• M40: 10,074,369 km (0.047 R)
• M41: 10,290,090 km (0.035 R)
• M42: 13,088,019 km (0.098 R)
• M43: 13,941,624 km (0.071 R)
• M44: 14,472,098 km (0.12 R)
• M45: 14,715,344 km (0.117 R)
• M46: 14,861,950 km (0.094 R)
• M47: 15,502,977 km (0.1 R)
• M48: 15,901,805 km (0.092 R)
• M49: 16,557,343 km (0.063 R)
• M50: 16,658,920 km (0.077 R)
• M51: 16,760,796 km (0.114 R)
• M52: 18,523,059 km (0.086 R)
• M53: 18,575,867 km (0.06 R)
• M54: 21,274,612 km (0.059 R)
• M55: 21,662,071 km (0.113 R)
• M56: 22,051,923 km (0.104 R)
• M57: 22,219,772 km (0.114 R)
• M58: 24,323,567 km (0.06 R)
• M59: 24,961,153 km (0.033 R)
• M60: 26,134,598 km (0.099 R)
• M61: 28,049,002 km (0.078 R)
• M62: 28,534,597 km (0.074 R)
• M63: 28,717,406 km (0.103 R)
• M64: 29,145,405 km (0.085 R)
• M65: 29,760,701 km (0.119 R)
• M66: 30,007,986 km (0.063 R)
• M67: 30,131,854 km (0.116 R)
• M68: 30,318,103 km (0.052 R)
• M69: 31,004,009 km (0.044 R)
• M70: 31,631,871 km (0.077 R)
• M71: 32,964,190 km (0.049 R)
• M72: 33,540,890 km (0.052 R)
• M73: 33,669,394 km (0.12 R)
• M74: 33,862,525 km (0.074 R)
• M75: 34,056,105 km (0.037 R)
• M76: 34,185,357 km (0.104 R)
• M77: 35,159,838 km (0.111 R)
• M78: 35,486,709 km (0.061 R)
• M79: 35,814,628 km (0.103 R)
• M80: 36,143,444 km (0.075 R)
• M81: 37,003,183 km (0.103 R)
• M82: 37,136,026 km (0.115 R)
• M83: 37,402,310 km (0.117 R)
• M84: 37,735,913 km (0.033 R)
• M85: 37,869,654 km (0.048 R)
• M86: 38,271,773 km (0.1 R)
• M87: 40,303,611 km (0.082 R)
• M88: 40,645,741 km (0.104 R)
• M89: 42,162,065 km (0.06 R)
• M90: 42,718,121 km (0.077 R)
• M91: 45,890,493 km (0.119 R)
• M92: 46,247,733 km (0.068 R)
• M93: 46,534,063 km (0.115 R)
• M94: 47,180,625 km (0.069 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 84.7

Radius: 4.5

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 16.4 AU - 18.28 AU

Year: 26641 Days

Day: 24.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (72)

Outer Limit: 45,891,435 km

• M1: 450,439 km (0.093 R)
• M2: 537,954 km (0.037 R)
• M3: 1,211,892 km (0.067 R)
• M4: 1,440,627 km (0.1 R)
• M5: 1,820,157 km (0.05 R)
• M6: 2,204,325 km (0.109 R)
• M7: 2,665,684 km (0.063 R)
• M8: 2,745,420 km (0.104 R)
• M9: 2,907,285 km (0.065 R)
• M10: 3,044,616 km (0.099 R)
• M11: 3,527,219 km (0.103 R)
• M12: 4,341,480 km (0.068 R)
• M13: 4,785,636 km (0.032 R)
• M14: 5,144,820 km (0.059 R)
• M15: 5,992,891 km (0.098 R)
• M16: 6,027,747 km (0.07 R)
• M17: 6,486,564 km (0.113 R)
• M18: 6,701,985 km (0.081 R)
• M19: 7,214,058 km (0.1 R)
• M20: 7,325,509 km (0.115 R)
• M21: 7,814,544 km (0.054 R)
• M22: 8,275,455 km (0.084 R)
• M23: 8,705,549 km (0.102 R)
• M24: 9,303,791 km (0.107 R)
• M25: 9,997,775 km (0.113 R)
• M26: 11,957,208 km (0.117 R)
• M27: 12,665,853 km (0.093 R)
• M28: 13,297,007 km (0.082 R)
• M29: 13,984,559 km (0.06 R)
• M30: 15,970,470 km (0.074 R)
• M31: 16,456,065 km (0.042 R)
• M32: 16,995,964 km (0.049 R)
• M33: 17,441,915 km (0.096 R)
• M34: 17,942,021 km (0.06 R)
• M35: 19,007,307 km (0.086 R)
• M36: 19,988,819 km (0.046 R)
• M37: 20,145,298 km (0.08 R)
• M38: 20,459,454 km (0.118 R)
• M39: 21,305,130 km (0.116 R)
• M40: 22,162,177 km (0.095 R)
• M41: 22,703,571 km (0.09 R)
• M42: 23,139,799 km (0.105 R)
• M43: 23,688,972 km (0.116 R)
• M44: 24,075,833 km (0.091 R)
• M45: 24,632,337 km (0.094 R)
• M46: 25,362,075 km (0.1 R)
• M47: 25,985,001 km (0.108 R)
• M48: 27,303,706 km (0.113 R)
• M49: 28,526,668 km (0.025 R)
• M50: 29,529,722 km (0.116 R)
• M51: 30,184,961 km (0.068 R)
• M52: 30,544,295 km (0.062 R)
• M53: 30,784,699 km (0.036 R)
• M54: 31,813,334 km (0.105 R)
• M55: 33,842,030 km (0.098 R)
• M56: 34,028,429 km (0.06 R)
• M57: 34,090,662 km (0.094 R)
• M58: 35,028,790 km (0.109 R)
• M59: 35,343,395 km (0.082 R)
• M60: 37,250,618 km (0.044 R)
• M61: 38,281,347 km (0.093 R)
• M62: 39,779,420 km (0.084 R)
• M63: 40,107,638 km (0.086 R)
• M64: 40,173,461 km (0.081 R)
• M65: 40,568,699 km (0.107 R)
• M66: 40,700,644 km (0.084 R)
• M67: 40,965,133 km (0.077 R)
• M68: 41,031,405 km (0.102 R)
• M69: 41,230,220 km (0.097 R)
• M70: 43,169,009 km (0.092 R)
• M71: 43,506,202 km (0.119 R)
• M72: 44,659,452 km (0.1 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 156 - 12,775 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit