🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.77

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.44 AU - 0.68 AU

Year: 152 Days

Day: 30.6 Hours

Environment

Temp: 210 °C

Axial Tilt: 31.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 93,648,990 km

• M1: 143,016 km (0.095 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.57 AU - 0.75 AU

Year: 194 Days

Day: 23.5 Hours

Environment

Temp: 153 °C

Axial Tilt: 13.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.7 AU - 0.96 AU

Year: 273 Days

Day: 35.1 Hours

Environment

Temp: 128 °C

Axial Tilt: 6.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 2.06 AU - 2.16 AU

Year: 1108 Days

Day: 19.5 Hours

Environment

Temp: -70 °C

Axial Tilt: 176.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.71

Radius: 0.87

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.12 AU - 2.2 AU

Year: 1148 Days

Day: 16.3 Hours

Environment

Temp: -74 °C

Axial Tilt: 27.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.4

Radius: 12.2

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 4.49 AU - 6.37 AU

Year: 4576 Days

Day: 7.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 93,648,990 km

• M1: 162,164 km (0.11 R)
• M2: 396,734 km (0.098 R)
• M3: 511,774 km (0.103 R)
• M4: 733,778 km (0.078 R)
• M5: 844,779 km (0.119 R)
• M6: 1,155,793 km (0.11 R)
• M7: 1,599,351 km (0.106 R)
• M8: 2,005,210 km (0.112 R)
• M9: 2,147,777 km (0.119 R)
• M10: 2,871,082 km (0.082 R)
• M11: 2,971,612 km (0.112 R)
• M12: 3,052,993 km (0.027 R)
• M13: 3,259,588 km (0.083 R)
• M14: 3,535,297 km (0.051 R)
• M15: 3,621,764 km (0.039 R)
• M16: 3,818,785 km (0.057 R)
• M17: 4,246,336 km (0.081 R)
• M18: 5,444,166 km (0.099 R)
• M19: 5,569,379 km (0.088 R)
• M20: 6,210,406 km (0.055 R)
• M21: 6,473,399 km (0.057 R)
• M22: 6,686,576 km (0.114 R)
• M23: 6,874,920 km (0.113 R)
• M24: 7,284,519 km (0.1 R)
• M25: 7,395,072 km (0.091 R)
• M26: 8,013,360 km (0.097 R)
• M27: 8,127,503 km (0.116 R)
• M28: 8,213,521 km (0.114 R)
• M29: 8,386,457 km (0.087 R)
• M30: 8,473,523 km (0.099 R)
• M31: 8,677,424 km (0.048 R)
• M32: 9,179,774 km (0.093 R)
• M33: 9,722,066 km (0.11 R)
• M34: 9,935,692 km (0.115 R)
• M35: 10,181,781 km (0.103 R)
• M36: 10,774,487 km (0.052 R)
• M37: 11,186,480 km (0.092 R)
• M38: 11,474,755 km (0.104 R)
• M39: 12,222,595 km (0.06 R)
• M40: 12,486,485 km (0.118 R)
• M41: 12,685,600 km (0.084 R)
• M42: 12,919,272 km (0.034 R)
• M43: 14,005,502 km (0.073 R)
• M44: 14,804,205 km (0.085 R)
• M45: 14,979,833 km (0.107 R)
• M46: 16,228,527 km (0.072 R)
• M47: 16,847,114 km (0.057 R)
• M48: 17,103,973 km (0.092 R)
• M49: 17,436,230 km (0.113 R)
• M50: 18,182,275 km (0.089 R)
• M51: 18,824,648 km (0.079 R)
• M52: 19,167,676 km (0.063 R)
• M53: 19,282,567 km (0.105 R)
• M54: 19,551,395 km (0.114 R)
• M55: 19,705,630 km (0.101 R)
• M56: 19,860,165 km (0.109 R)
• M57: 20,521,537 km (0.081 R)
• M58: 20,599,926 km (0.09 R)
• M59: 20,914,082 km (0.108 R)
• M60: 21,427,950 km (0.088 R)
• M61: 21,786,237 km (0.083 R)
• M62: 22,387,770 km (0.056 R)
• M63: 23,279,822 km (0.108 R)
• M64: 23,853,530 km (0.104 R)
• M65: 24,100,815 km (0.029 R)
• M66: 24,183,543 km (0.113 R)
• M67: 24,806,319 km (0.112 R)
• M68: 25,015,008 km (0.035 R)
• M69: 25,308,220 km (0.046 R)
• M70: 25,518,405 km (0.075 R)
• M71: 25,813,711 km (0.06 R)
• M72: 26,578,007 km (0.057 R)
• M73: 26,834,417 km (0.104 R)
• M74: 27,134,511 km (0.119 R)
• M75: 28,477,451 km (0.039 R)
• M76: 29,267,028 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 366.1

Radius: 13

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 5.27 AU - 6.57 AU

Year: 5209 Days

Day: 12.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (69)

Outer Limit: 93,648,990 km

• M1: 170,542 km (0.104 R)
• M2: 347,067 km (0.036 R)
• M3: 493,224 km (0.073 R)
• M4: 759,957 km (0.065 R)
• M5: 1,000,810 km (0.086 R)
• M6: 1,375,403 km (0.094 R)
• M7: 1,543,252 km (0.087 R)
• M8: 1,659,190 km (0.111 R)
• M9: 2,056,672 km (0.062 R)
• M10: 2,518,181 km (0.093 R)
• M11: 2,621,403 km (0.065 R)
• M12: 3,030,404 km (0.068 R)
• M13: 3,122,108 km (0.101 R)
• M14: 3,575,090 km (0.057 R)
• M15: 3,672,179 km (0.073 R)
• M16: 3,770,166 km (0.104 R)
• M17: 3,888,797 km (0.065 R)
• M18: 4,028,970 km (0.073 R)
• M19: 4,252,619 km (0.104 R)
• M20: 4,969,940 km (0.048 R)
• M21: 5,254,176 km (0.086 R)
• M22: 5,365,028 km (0.106 R)
• M23: 5,521,508 km (0.106 R)
• M24: 5,679,334 km (0.107 R)
• M25: 5,999,922 km (0.088 R)
• M26: 6,092,523 km (0.098 R)
• M27: 6,634,815 km (0.092 R)
• M28: 6,948,073 km (0.047 R)
• M29: 7,340,468 km (0.046 R)
• M30: 7,539,433 km (0.107 R)
• M31: 7,841,322 km (0.053 R)
• M32: 8,224,143 km (0.112 R)
• M33: 9,382,479 km (0.075 R)
• M34: 9,598,499 km (0.102 R)
• M35: 9,734,483 km (0.083 R)
• M36: 10,507,455 km (0.085 R)
• M37: 10,619,504 km (0.036 R)
• M38: 10,760,126 km (0.046 R)
• M39: 11,157,159 km (0.111 R)
• M40: 11,761,833 km (0.074 R)
• M41: 11,849,049 km (0.108 R)
• M42: 12,229,626 km (0.118 R)
• M43: 12,525,231 km (0.111 R)
• M44: 12,793,161 km (0.102 R)
• M45: 13,032,966 km (0.047 R)
• M46: 13,517,215 km (0.048 R)
• M47: 13,822,843 km (0.028 R)
• M48: 13,976,480 km (0.106 R)
• M49: 14,099,749 km (0.108 R)
• M50: 14,347,633 km (0.116 R)
• M51: 14,784,758 km (0.086 R)
• M52: 15,416,809 km (0.105 R)
• M53: 15,928,732 km (0.096 R)
• M54: 16,122,312 km (0.086 R)
• M55: 17,697,877 km (0.119 R)
• M56: 17,998,868 km (0.074 R)
• M57: 18,368,973 km (0.115 R)
• M58: 18,538,019 km (0.063 R)
• M59: 18,911,714 km (0.058 R)
• M60: 19,735,849 km (0.062 R)
• M61: 19,908,933 km (0.052 R)
• M62: 20,152,329 km (0.112 R)
• M63: 20,782,435 km (0.101 R)
• M64: 21,029,272 km (0.033 R)
• M65: 21,490,183 km (0.084 R)
• M66: 22,385,975 km (0.064 R)
• M67: 24,214,211 km (0.084 R)
• M68: 24,548,263 km (0.119 R)
• M69: 24,771,911 km (0.085 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.1

Radius: 13.4

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 5.47 AU - 7.55 AU

Year: 6007 Days

Day: 14.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 93,648,990 km

• M1: 207,043 km (0.105 R)
• M2: 304,432 km (0.09 R)
• M3: 404,961 km (0.105 R)
• M4: 582,385 km (0.081 R)
• M5: 750,084 km (0.058 R)
• M6: 903,721 km (0.087 R)
• M7: 1,057,358 km (0.103 R)
• M8: 1,342,491 km (0.093 R)
• M9: 1,533,677 km (0.107 R)
• M10: 1,844,841 km (0.098 R)
• M11: 1,972,149 km (0.098 R)
• M12: 2,388,031 km (0.101 R)
• M13: 2,847,745 km (0.103 R)
• M14: 3,012,901 km (0.068 R)
• M15: 3,147,390 km (0.079 R)
• M16: 3,387,644 km (0.096 R)
• M17: 3,562,972 km (0.094 R)
• M18: 3,868,152 km (0.1 R)
• M19: 4,370,352 km (0.11 R)
• M20: 4,952,737 km (0.054 R)
• M21: 5,132,404 km (0.06 R)
• M22: 5,539,310 km (0.053 R)
• M23: 5,956,688 km (0.087 R)
• M24: 6,126,631 km (0.095 R)
• M25: 6,384,388 km (0.102 R)
• M26: 6,645,885 km (0.069 R)
• M27: 6,733,849 km (0.052 R)
• M28: 6,933,263 km (0.106 R)
• M29: 7,022,423 km (0.105 R)
• M30: 7,292,447 km (0.084 R)
• M31: 7,982,542 km (0.074 R)
• M32: 8,478,011 km (0.068 R)
• M33: 8,814,007 km (0.087 R)
• M34: 9,523,849 km (0.118 R)
• M35: 9,823,045 km (0.052 R)
• M36: 10,558,767 km (0.029 R)
• M37: 10,661,691 km (0.056 R)
• M38: 11,233,603 km (0.106 R)
• M39: 11,549,704 km (0.072 R)
• M40: 12,380,121 km (0.105 R)
• M41: 12,515,956 km (0.109 R)
• M42: 12,761,596 km (0.098 R)
• M43: 12,898,628 km (0.07 R)
• M44: 14,325,492 km (0.079 R)
• M45: 14,611,224 km (0.118 R)
• M46: 14,697,243 km (0.066 R)
• M47: 14,783,561 km (0.09 R)
• M48: 15,014,241 km (0.068 R)
• M49: 15,217,245 km (0.059 R)
• M50: 15,304,461 km (0.06 R)
• M51: 15,537,983 km (0.044 R)
• M52: 16,126,800 km (0.082 R)
• M53: 16,304,971 km (0.044 R)
• M54: 16,424,051 km (0.116 R)
• M55: 16,603,269 km (0.103 R)
• M56: 16,933,432 km (0.107 R)
• M57: 17,906,566 km (0.037 R)
• M58: 18,368,823 km (0.068 R)
• M59: 18,554,923 km (0.059 R)
• M60: 18,897,652 km (0.047 R)
• M61: 19,054,131 km (0.099 R)
• M62: 19,273,890 km (0.104 R)
• M63: 19,557,827 km (0.111 R)
• M64: 19,779,531 km (0.054 R)
• M65: 19,874,825 km (0.06 R)
• M66: 20,417,566 km (0.116 R)
• M67: 20,546,071 km (0.106 R)
• M68: 20,868,305 km (0.063 R)
• M69: 21,094,945 km (0.069 R)
• M70: 21,452,634 km (0.109 R)
• M71: 22,141,233 km (0.117 R)

Planet 9 - Gas Giant

Semi-Major Axis: 12.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538.8

Radius: 11.7

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 10.79 AU - 13.73 AU

Year: 15525 Days

Day: 11.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 93,648,990 km

• M1: 150,795 km (0.056 R)
• M2: 276,606 km (0.091 R)
• M3: 583,880 km (0.079 R)
• M4: 729,290 km (0.058 R)
• M5: 1,612,067 km (0.092 R)
• M6: 1,905,727 km (0.112 R)
• M7: 2,158,996 km (0.1 R)
• M8: 2,605,546 km (0.076 R)
• M9: 3,080,819 km (0.093 R)
• M10: 3,412,926 km (0.099 R)
• M11: 3,652,432 km (0.092 R)
• M12: 4,515,013 km (0.094 R)
• M13: 5,007,938 km (0.093 R)
• M14: 5,718,827 km (0.12 R)
• M15: 6,003,961 km (0.118 R)
• M16: 7,721,045 km (0.11 R)
• M17: 9,291,973 km (0.033 R)
• M18: 9,531,180 km (0.042 R)
• M19: 9,627,371 km (0.119 R)
• M20: 10,162,632 km (0.047 R)
• M21: 11,262,176 km (0.057 R)
• M22: 11,671,327 km (0.114 R)
• M23: 12,981,355 km (0.109 R)
• M24: 13,356,547 km (0.079 R)
• M25: 13,898,540 km (0.056 R)
• M26: 14,007,896 km (0.108 R)
• M27: 14,558,715 km (0.093 R)
• M28: 15,060,466 km (0.045 R)
• M29: 16,484,040 km (0.107 R)
• M30: 17,006,884 km (0.085 R)
• M31: 17,299,797 km (0.097 R)
• M32: 18,069,179 km (0.108 R)
• M33: 18,849,781 km (0.05 R)
• M34: 19,335,525 km (0.065 R)
• M35: 19,579,968 km (0.05 R)
• M36: 19,763,973 km (0.095 R)
• M37: 21,005,486 km (0.12 R)
• M38: 21,382,921 km (0.104 R)
• M39: 21,509,182 km (0.077 R)
• M40: 23,238,234 km (0.049 R)
• M41: 24,547,664 km (0.081 R)
• M42: 25,011,567 km (0.076 R)
• M43: 26,624,232 km (0.058 R)
• M44: 26,760,067 km (0.12 R)
• M45: 27,032,634 km (0.119 R)
• M46: 27,511,796 km (0.073 R)
• M47: 27,786,757 km (0.105 R)
• M48: 28,686,888 km (0.086 R)
• M49: 30,302,993 km (0.079 R)
• M50: 30,444,812 km (0.119 R)
• M51: 30,658,139 km (0.055 R)
• M52: 30,871,914 km (0.029 R)
• M53: 31,444,425 km (0.091 R)
• M54: 32,092,782 km (0.08 R)
• M55: 32,527,364 km (0.106 R)
• M56: 32,964,040 km (0.045 R)
• M57: 33,183,052 km (0.066 R)
• M58: 33,843,077 km (0.097 R)
• M59: 36,828,453 km (0.096 R)
• M60: 37,359,525 km (0.107 R)
• M61: 39,276,921 km (0.027 R)
• M62: 39,509,246 km (0.103 R)
• M63: 39,741,871 km (0.108 R)
• M64: 40,755,397 km (0.051 R)
• M65: 40,912,175 km (0.079 R)
• M66: 41,540,935 km (0.084 R)
• M67: 43,206,707 km (0.055 R)
• M68: 43,606,583 km (0.025 R)
• M69: 44,168,323 km (0.111 R)
• M70: 45,949,584 km (0.118 R)
• M71: 46,603,177 km (0.119 R)
• M72: 46,685,157 km (0.095 R)
• M73: 52,622,098 km (0.07 R)
• M74: 53,134,621 km (0.12 R)
• M75: 53,305,910 km (0.063 R)
• M76: 54,423,107 km (0.089 R)
• M77: 55,374,699 km (0.087 R)
• M78: 58,350,201 km (0.088 R)
• M79: 59,057,799 km (0.092 R)
• M80: 59,146,510 km (0.037 R)

Planet 10 - Ice Giant

Semi-Major Axis: 19.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 500.9

Radius: 6.5

Gravity: 11.86 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 14.93 AU - 24.73 AU

Year: 31936 Days

Day: 20.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 152.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 93,648,990 km

• M1: 135,685 km (0.094 R)
• M2: 288,275 km (0.075 R)
• M3: 345,421 km (0.117 R)
• M4: 746,793 km (0.033 R)
• M5: 886,218 km (0.099 R)
• M6: 974,032 km (0.08 R)
• M7: 1,421,778 km (0.09 R)
• M8: 1,850,974 km (0.116 R)
• M9: 1,926,372 km (0.1 R)
• M10: 2,080,009 km (0.106 R)
• M11: 2,399,550 km (0.038 R)
• M12: 2,734,499 km (0.12 R)
• M13: 3,635,079 km (0.106 R)
• M14: 3,873,538 km (0.108 R)
• M15: 3,970,327 km (0.092 R)
• M16: 4,019,096 km (0.102 R)
• M17: 5,140,632 km (0.05 R)
• M18: 5,625,778 km (0.045 R)
• M19: 5,680,530 km (0.114 R)
• M20: 5,901,636 km (0.088 R)
• M21: 5,957,286 km (0.102 R)
• M22: 6,069,186 km (0.108 R)
• M23: 6,295,228 km (0.105 R)
• M24: 6,639,303 km (0.063 R)
• M25: 6,697,197 km (0.086 R)
• M26: 6,989,512 km (0.088 R)
• M27: 8,512,717 km (0.107 R)
• M28: 8,575,698 km (0.079 R)
• M29: 9,021,051 km (0.096 R)
• M30: 10,401,839 km (0.117 R)
• M31: 10,944,879 km (0.099 R)
• M32: 12,342,722 km (0.091 R)
• M33: 12,557,245 km (0.112 R)
• M34: 13,354,153 km (0.088 R)
• M35: 14,996,738 km (0.106 R)
• M36: 15,072,883 km (0.112 R)
• M37: 15,225,622 km (0.103 R)
• M38: 18,386,027 km (0.074 R)
• M39: 19,871,983 km (0.058 R)
• M40: 19,955,608 km (0.098 R)
• M41: 21,912,498 km (0.116 R)
• M42: 23,929,675 km (0.106 R)
• M43: 24,734,961 km (0.117 R)
• M44: 26,096,900 km (0.05 R)
• M45: 26,280,307 km (0.054 R)
• M46: 26,464,163 km (0.07 R)
• M47: 26,556,315 km (0.035 R)
• M48: 29,654,487 km (0.086 R)
• M49: 32,765,973 km (0.062 R)
• M50: 33,460,406 km (0.041 R)
• M51: 34,863,634 km (0.083 R)
• M52: 35,979,485 km (0.05 R)
• M53: 36,388,336 km (0.09 R)
• M54: 36,798,533 km (0.119 R)
• M55: 36,901,307 km (0.106 R)
• M56: 37,107,153 km (0.086 R)
• M57: 38,767,989 km (0.118 R)
• M58: 40,771,553 km (0.079 R)
• M59: 42,592,608 km (0.084 R)
• M60: 44,330,636 km (0.074 R)
• M61: 44,878,464 km (0.101 R)
• M62: 45,318,431 km (0.112 R)
• M63: 47,427,462 km (0.067 R)
• M64: 47,651,260 km (0.079 R)
• M65: 49,681,752 km (0.089 R)
• M66: 50,479,109 km (0.109 R)
• M67: 51,970,899 km (0.059 R)
• M68: 53,826,660 km (0.117 R)
• M69: 57,961,396 km (0.083 R)
• M70: 60,248,448 km (0.103 R)
• M71: 60,612,270 km (0.062 R)
• M72: 67,158,374 km (0.072 R)
• M73: 68,292,026 km (0.071 R)
• M74: 68,418,437 km (0.107 R)
• M75: 69,813,437 km (0.042 R)
• M76: 71,474,123 km (0.077 R)
• M77: 75,225,588 km (0.084 R)
• M78: 76,533,971 km (0.066 R)
• M79: 77,849,834 km (0.094 R)
• M80: 80,103,975 km (0.092 R)
• M81: 81,573,774 km (0.09 R)
• M82: 82,648,485 km (0.098 R)
• M83: 82,917,911 km (0.06 R)
• M84: 83,052,699 km (0.093 R)
• M85: 83,863,070 km (0.115 R)
• M86: 83,998,307 km (0.078 R)
• M87: 84,540,300 km (0.079 R)
• M88: 84,811,670 km (0.035 R)
• M89: 89,470,148 km (0.08 R)
• M90: 90,439,542 km (0.074 R)
• M91: 93,649,015 km (0.088 R)

Kuiper Belt

Range: 30.3 - 46.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 527 - 19,427 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit