🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.41

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.47 AU - 0.59 AU

Year: 138 Days

Day: 17.2 Hours

Environment

Temp: 193 °C

Axial Tilt: 10.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 85,573,701 km

• M1: 81,531 km (0.104 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.64

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.54 AU - 0.7 AU

Year: 175 Days

Day: 30 Hours

Environment

Temp: 150 °C

Axial Tilt: 0.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.75 AU - 2.43 AU

Year: 1082 Days

Day: 30 Hours

Environment

Temp: -68 °C

Axial Tilt: 49.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 2.28 AU - 2.42 AU

Year: 1290 Days

Day: 24.4 Hours

Environment

Temp: -78 °C

Axial Tilt: 35.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 85,573,701 km

• M1: 1,311,225 km (0.08 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.42

Radius: 1.64

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.08 AU - 2.66 AU

Year: 1307 Days

Day: 34.6 Hours

Environment

Temp: -68 °C

Axial Tilt: 37.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 85,573,701 km

• M1: 281,842 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.6

Radius: 8.1

Gravity: 13.18 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 4.47 AU - 5.83 AU

Year: 4186 Days

Day: 13.1 Hours

Environment

Temp: -135 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (84)

Outer Limit: 85,573,701 km

• M1: 105,466 km (0.075 R)
• M2: 221,854 km (0.109 R)
• M3: 273,914 km (0.102 R)
• M4: 358,287 km (0.084 R)
• M5: 504,145 km (0.114 R)
• M6: 893,698 km (0.087 R)
• M7: 1,000,511 km (0.078 R)
• M8: 1,097,600 km (0.063 R)
• M9: 1,331,571 km (0.075 R)
• M10: 1,423,573 km (0.076 R)
• M11: 1,712,148 km (0.042 R)
• M12: 1,795,623 km (0.101 R)
• M13: 2,089,733 km (0.101 R)
• M14: 2,215,395 km (0.067 R)
• M15: 2,455,350 km (0.095 R)
• M16: 2,645,638 km (0.073 R)
• M17: 2,880,507 km (0.119 R)
• M18: 3,081,417 km (0.105 R)
• M19: 3,603,663 km (0.081 R)
• M20: 3,711,523 km (0.084 R)
• M21: 4,380,525 km (0.103 R)
• M22: 4,728,938 km (0.068 R)
• M23: 4,870,907 km (0.034 R)
• M24: 5,038,307 km (0.068 R)
• M25: 6,005,158 km (0.075 R)
• M26: 6,236,436 km (0.094 R)
• M27: 6,288,197 km (0.072 R)
• M28: 6,496,736 km (0.072 R)
• M29: 6,654,712 km (0.095 R)
• M30: 6,947,475 km (0.047 R)
• M31: 7,353,633 km (0.094 R)
• M32: 7,711,920 km (0.106 R)
• M33: 7,823,221 km (0.116 R)
• M34: 7,935,120 km (0.117 R)
• M35: 8,675,629 km (0.042 R)
• M36: 8,733,374 km (0.065 R)
• M37: 10,008,546 km (0.105 R)
• M38: 10,221,723 km (0.119 R)
• M39: 10,282,759 km (0.062 R)
• M40: 10,436,247 km (0.088 R)
• M41: 10,621,299 km (0.083 R)
• M42: 11,026,111 km (0.086 R)
• M43: 11,404,294 km (0.062 R)
• M44: 11,883,008 km (0.119 R)
• M45: 12,044,125 km (0.025 R)
• M46: 12,303,228 km (0.061 R)
• M47: 12,761,147 km (0.105 R)
• M48: 13,258,111 km (0.084 R)
• M49: 13,795,018 km (0.117 R)
• M50: 14,304,997 km (0.067 R)
• M51: 15,343,206 km (0.039 R)
• M52: 15,448,374 km (0.087 R)
• M53: 15,553,840 km (0.102 R)
• M54: 15,835,982 km (0.11 R)
• M55: 16,191,277 km (0.076 R)
• M56: 16,333,993 km (0.114 R)
• M57: 16,477,308 km (0.094 R)
• M58: 17,199,716 km (0.073 R)
• M59: 17,821,894 km (0.097 R)
• M60: 18,377,051 km (0.093 R)
• M61: 18,712,749 km (0.087 R)
• M62: 18,787,697 km (0.106 R)
• M63: 19,732,258 km (0.086 R)
• M64: 19,808,553 km (0.109 R)
• M65: 20,615,035 km (0.112 R)
• M66: 21,119,629 km (0.112 R)
• M67: 21,236,615 km (0.042 R)
• M68: 22,897,450 km (0.101 R)
• M69: 23,097,911 km (0.118 R)
• M70: 23,218,487 km (0.081 R)
• M71: 24,027,812 km (0.118 R)
• M72: 24,272,404 km (0.112 R)
• M73: 24,846,262 km (0.036 R)
• M74: 25,010,969 km (0.084 R)
• M75: 25,715,425 km (0.076 R)
• M76: 26,216,578 km (0.118 R)
• M77: 26,594,462 km (0.068 R)
• M78: 26,678,835 km (0.114 R)
• M79: 26,805,246 km (0.092 R)
• M80: 27,568,644 km (0.061 R)
• M81: 27,867,391 km (0.055 R)
• M82: 27,952,961 km (0.077 R)
• M83: 28,425,241 km (0.114 R)
• M84: 28,554,494 km (0.116 R)

Asteroid Belt

Center: 5.51 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.7

Radius: 8.4

Gravity: 10.57 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 5.57 AU - 6.17 AU

Year: 5094 Days

Day: 10.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 85,573,701 km

• M1: 126,859 km (0.072 R)
• M2: 206,744 km (0.103 R)
• M3: 300,991 km (0.086 R)
• M4: 364,720 km (0.102 R)
• M5: 454,927 km (0.104 R)
• M6: 576,700 km (0.102 R)
• M7: 787,334 km (0.114 R)
• M8: 1,007,841 km (0.116 R)
• M9: 1,170,903 km (0.104 R)
• M10: 2,340,459 km (0.101 R)
• M11: 2,438,595 km (0.103 R)
• M12: 2,538,227 km (0.088 R)
• M13: 2,639,206 km (0.118 R)
• M14: 2,908,033 km (0.049 R)
• M15: 3,142,453 km (0.086 R)
• M16: 3,383,156 km (0.088 R)
• M17: 3,629,843 km (0.063 R)
• M18: 3,743,836 km (0.109 R)
• M19: 3,835,989 km (0.104 R)
• M20: 4,212,078 km (0.046 R)
• M21: 4,332,055 km (0.107 R)
• M22: 4,428,995 km (0.083 R)
• M23: 5,725,410 km (0.104 R)
• M24: 5,805,145 km (0.085 R)
• M25: 5,992,592 km (0.114 R)
• M26: 6,456,195 km (0.106 R)
• M27: 6,567,047 km (0.113 R)
• M28: 6,931,468 km (0.039 R)
• M29: 7,159,006 km (0.116 R)
• M30: 7,302,470 km (0.105 R)
• M31: 7,709,377 km (0.067 R)
• M32: 9,252,927 km (0.072 R)
• M33: 9,440,673 km (0.047 R)
• M34: 10,822,808 km (0.055 R)
• M35: 11,219,840 km (0.107 R)
• M36: 11,688,979 km (0.08 R)
• M37: 12,681,112 km (0.062 R)
• M38: 12,750,526 km (0.088 R)
• M39: 12,820,089 km (0.067 R)
• M40: 12,924,658 km (0.107 R)
• M41: 13,381,081 km (0.1 R)
• M42: 13,593,510 km (0.074 R)
• M43: 14,021,659 km (0.08 R)
• M44: 14,818,118 km (0.094 R)
• M45: 16,341,473 km (0.077 R)
• M46: 16,530,714 km (0.107 R)
• M47: 16,682,556 km (0.089 R)
• M48: 16,949,439 km (0.089 R)
• M49: 17,371,604 km (0.108 R)
• M50: 17,680,823 km (0.081 R)
• M51: 17,836,255 km (0.053 R)
• M52: 17,914,046 km (0.062 R)
• M53: 17,991,986 km (0.1 R)
• M54: 18,070,076 km (0.071 R)
• M55: 18,148,166 km (0.065 R)
• M56: 18,226,406 km (0.087 R)
• M57: 18,344,140 km (0.069 R)
• M58: 18,540,711 km (0.104 R)
• M59: 18,698,537 km (0.1 R)
• M60: 18,896,455 km (0.044 R)
• M61: 20,098,175 km (0.079 R)
• M62: 20,382,261 km (0.067 R)
• M63: 20,831,204 km (0.114 R)
• M64: 21,365,867 km (0.082 R)
• M65: 21,490,033 km (0.106 R)
• M66: 22,448,956 km (0.051 R)
• M67: 23,720,837 km (0.1 R)
• M68: 25,102,971 km (0.108 R)
• M69: 25,584,078 km (0.071 R)
• M70: 26,511,136 km (0.089 R)
• M71: 26,867,179 km (0.098 R)
• M72: 29,265,682 km (0.095 R)
• M73: 29,357,535 km (0.073 R)
• M74: 29,818,296 km (0.052 R)
• M75: 30,003,199 km (0.096 R)
• M76: 30,188,551 km (0.114 R)
• M77: 30,840,050 km (0.109 R)
• M78: 30,980,373 km (0.082 R)
• M79: 31,449,362 km (0.072 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.9

Radius: 14.4

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 6.06 AU - 6.48 AU

Year: 5623 Days

Day: 13.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (70)

Outer Limit: 85,573,701 km

• M1: 205,996 km (0.11 R)
• M2: 464,202 km (0.049 R)
• M3: 659,128 km (0.066 R)
• M4: 758,162 km (0.073 R)
• M5: 885,171 km (0.081 R)
• M6: 1,078,601 km (0.079 R)
• M7: 1,312,572 km (0.066 R)
• M8: 1,591,422 km (0.102 R)
• M9: 1,773,932 km (0.07 R)
• M10: 2,191,459 km (0.089 R)
• M11: 2,380,102 km (0.106 R)
• M12: 2,525,212 km (0.074 R)
• M13: 2,841,462 km (0.113 R)
• M14: 3,100,266 km (0.085 R)
• M15: 3,476,056 km (0.057 R)
• M16: 3,604,561 km (0.064 R)
• M17: 4,429,294 km (0.088 R)
• M18: 4,629,456 km (0.073 R)
• M19: 4,751,079 km (0.091 R)
• M20: 5,018,111 km (0.103 R)
• M21: 5,185,062 km (0.11 R)
• M22: 5,481,565 km (0.056 R)
• M23: 5,783,603 km (0.067 R)
• M24: 6,024,905 km (0.09 R)
• M25: 6,157,897 km (0.112 R)
• M26: 6,404,434 km (0.087 R)
• M27: 6,494,792 km (0.064 R)
• M28: 6,654,113 km (0.107 R)
• M29: 6,860,858 km (0.076 R)
• M30: 7,304,415 km (0.116 R)
• M31: 7,398,961 km (0.051 R)
• M32: 7,709,227 km (0.118 R)
• M33: 7,926,593 km (0.095 R)
• M34: 8,590,807 km (0.051 R)
• M35: 8,917,080 km (0.119 R)
• M36: 9,324,286 km (0.046 R)
• M37: 9,607,774 km (0.115 R)
• M38: 9,946,463 km (0.09 R)
• M39: 10,368,778 km (0.071 R)
• M40: 10,743,221 km (0.077 R)
• M41: 10,932,014 km (0.106 R)
• M42: 11,340,566 km (0.06 R)
• M43: 11,781,880 km (0.075 R)
• M44: 12,397,774 km (0.088 R)
• M45: 13,024,290 km (0.071 R)
• M46: 13,254,820 km (0.114 R)
• M47: 13,573,763 km (0.119 R)
• M48: 13,807,435 km (0.089 R)
• M49: 14,101,394 km (0.087 R)
• M50: 14,965,472 km (0.083 R)
• M51: 15,085,898 km (0.105 R)
• M52: 15,176,554 km (0.031 R)
• M53: 15,846,753 km (0.12 R)
• M54: 16,185,442 km (0.118 R)
• M55: 16,464,293 km (0.087 R)
• M56: 16,557,642 km (0.099 R)
• M57: 18,687,467 km (0.052 R)
• M58: 19,340,013 km (0.044 R)
• M59: 19,438,448 km (0.106 R)
• M60: 19,801,073 km (0.079 R)
• M61: 20,166,092 km (0.094 R)
• M62: 20,265,874 km (0.075 R)
• M63: 20,365,955 km (0.085 R)
• M64: 20,767,924 km (0.053 R)
• M65: 20,868,903 km (0.106 R)
• M66: 21,138,778 km (0.107 R)
• M67: 21,477,617 km (0.039 R)
• M68: 21,716,076 km (0.114 R)
• M69: 22,195,387 km (0.089 R)
• M70: 23,514,093 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 128.1

Radius: 7.7

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 13.02 AU - 16.74 AU

Year: 20558 Days

Day: 19.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (58)

Outer Limit: 85,573,701 km

• M1: 97,089 km (0.109 R)
• M2: 281,094 km (0.064 R)
• M3: 348,862 km (0.081 R)
• M4: 449,542 km (0.079 R)
• M5: 1,309,729 km (0.072 R)
• M6: 1,665,323 km (0.092 R)
• M7: 1,753,287 km (0.097 R)
• M8: 1,842,896 km (0.095 R)
• M9: 2,437,099 km (0.101 R)
• M10: 3,140,807 km (0.055 R)
• M11: 3,758,198 km (0.045 R)
• M12: 4,941,816 km (0.046 R)
• M13: 5,197,928 km (0.101 R)
• M14: 6,060,210 km (0.113 R)
• M15: 7,109,190 km (0.107 R)
• M16: 7,471,366 km (0.039 R)
• M17: 10,169,663 km (0.101 R)
• M18: 10,700,885 km (0.09 R)
• M19: 11,157,308 km (0.075 R)
• M20: 11,577,978 km (0.067 R)
• M21: 11,875,378 km (0.109 R)
• M22: 12,218,556 km (0.066 R)
• M23: 12,914,485 km (0.065 R)
• M24: 13,937,286 km (0.09 R)
• M25: 14,072,672 km (0.114 R)
• M26: 14,163,029 km (0.104 R)
• M27: 14,801,812 km (0.048 R)
• M28: 16,629,898 km (0.069 R)
• M29: 16,725,640 km (0.081 R)
• M30: 17,400,476 km (0.08 R)
• M31: 20,957,016 km (0.1 R)
• M32: 21,840,990 km (0.098 R)
• M33: 22,155,893 km (0.072 R)
• M34: 22,313,869 km (0.111 R)
• M35: 23,269,799 km (0.072 R)
• M36: 24,565,018 km (0.098 R)
• M37: 24,947,240 km (0.081 R)
• M38: 26,887,524 km (0.104 R)
• M39: 29,048,466 km (0.102 R)
• M40: 29,452,530 km (0.057 R)
• M41: 31,441,882 km (0.108 R)
• M42: 32,392,876 km (0.11 R)
• M43: 32,691,922 km (0.112 R)
• M44: 33,534,457 km (0.081 R)
• M45: 33,837,094 km (0.04 R)
• M46: 33,958,417 km (0.031 R)
• M47: 34,079,741 km (0.074 R)
• M48: 34,262,251 km (0.049 R)
• M49: 36,601,064 km (0.088 R)
• M50: 36,663,297 km (0.036 R)
• M51: 37,287,718 km (0.119 R)
• M52: 37,601,126 km (0.103 R)
• M53: 37,852,600 km (0.085 R)
• M54: 38,673,593 km (0.115 R)
• M55: 38,800,452 km (0.039 R)
• M56: 38,927,460 km (0.074 R)
• M57: 44,184,479 km (0.101 R)
• M58: 44,250,751 km (0.087 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 682.6

Radius: 6.6

Gravity: 15.67 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 13.51 AU - 19.39 AU

Year: 23896 Days

Day: 21 Hours

Environment

Temp: -202 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 85,573,701 km

• M1: 594,652 km (0.07 R)
• M2: 1,066,782 km (0.097 R)
• M3: 1,215,034 km (0.105 R)
• M4: 1,803,103 km (0.06 R)
• M5: 2,908,183 km (0.058 R)
• M6: 2,949,322 km (0.118 R)
• M7: 3,329,450 km (0.116 R)
• M8: 3,372,684 km (0.117 R)
• M9: 6,939,995 km (0.081 R)
• M10: 8,309,264 km (0.115 R)
• M11: 8,964,054 km (0.099 R)
• M12: 9,759,167 km (0.094 R)
• M13: 10,513,140 km (0.111 R)
• M14: 10,640,597 km (0.088 R)
• M15: 11,285,514 km (0.112 R)
• M16: 11,876,874 km (0.09 R)
• M17: 12,613,195 km (0.11 R)
• M18: 13,849,771 km (0.064 R)
• M19: 14,482,420 km (0.11 R)
• M20: 14,766,656 km (0.116 R)
• M21: 15,412,919 km (0.106 R)
• M22: 15,557,730 km (0.045 R)
• M23: 15,702,989 km (0.108 R)
• M24: 17,632,652 km (0.079 R)
• M25: 17,784,195 km (0.109 R)
• M26: 18,012,332 km (0.082 R)
• M27: 18,164,921 km (0.118 R)
• M28: 18,394,554 km (0.107 R)
• M29: 20,187,335 km (0.071 R)
• M30: 21,305,729 km (0.097 R)
• M31: 21,467,145 km (0.041 R)
• M32: 22,035,168 km (0.08 R)
• M33: 23,435,254 km (0.087 R)
• M34: 23,601,906 km (0.082 R)
• M35: 24,609,747 km (0.1 R)
• M36: 25,118,978 km (0.091 R)
• M37: 26,493,932 km (0.088 R)
• M38: 26,841,448 km (0.11 R)
• M39: 27,892,972 km (0.052 R)
• M40: 28,601,467 km (0.073 R)
• M41: 29,047,419 km (0.052 R)
• M42: 29,405,705 km (0.082 R)
• M43: 29,945,903 km (0.045 R)
• M44: 30,307,930 km (0.103 R)
• M45: 31,127,727 km (0.118 R)
• M46: 31,586,244 km (0.085 R)
• M47: 32,324,659 km (0.119 R)
• M48: 33,068,609 km (0.053 R)
• M49: 34,763,254 km (0.102 R)
• M50: 35,143,681 km (0.118 R)
• M51: 36,582,514 km (0.117 R)
• M52: 37,163,402 km (0.088 R)
• M53: 37,357,730 km (0.1 R)
• M54: 38,138,332 km (0.074 R)
• M55: 38,629,013 km (0.066 R)
• M56: 39,121,638 km (0.105 R)
• M57: 40,812,393 km (0.049 R)
• M58: 40,912,624 km (0.075 R)
• M59: 42,730,089 km (0.069 R)
• M60: 43,035,567 km (0.116 R)
• M61: 44,059,116 km (0.113 R)
• M62: 45,090,593 km (0.085 R)
• M63: 45,505,428 km (0.073 R)
• M64: 46,862,281 km (0.113 R)
• M65: 46,967,299 km (0.066 R)
• M66: 49,508,967 km (0.102 R)
• M67: 51,769,241 km (0.104 R)
• M68: 52,530,096 km (0.043 R)
• M69: 53,953,070 km (0.074 R)
• M70: 54,945,503 km (0.066 R)
• M71: 55,388,612 km (0.083 R)
• M72: 57,396,813 km (0.093 R)
• M73: 57,621,509 km (0.113 R)
• M74: 61,599,317 km (0.063 R)
• M75: 63,563,088 km (0.114 R)
• M76: 65,664,789 km (0.113 R)
• M77: 69,456,945 km (0.075 R)
• M78: 70,055,935 km (0.101 R)
• M79: 72,226,151 km (0.106 R)
• M80: 72,347,325 km (0.1 R)
• M81: 73,319,562 km (0.05 R)
• M82: 74,295,987 km (0.086 R)
• M83: 74,663,400 km (0.12 R)
• M84: 74,908,591 km (0.106 R)
• M85: 75,399,720 km (0.044 R)
• M86: 76,385,421 km (0.096 R)
• M87: 76,508,839 km (0.086 R)
• M88: 78,244,773 km (0.098 R)
• M89: 81,376,903 km (0.083 R)
• M90: 82,387,886 km (0.072 R)
• M91: 85,445,517 km (0.113 R)

Kuiper Belt

Range: 30.6 - 58.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 398 - 18,754 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit