🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.59

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.41 AU - 0.67 AU

Year: 178 Days

Day: 39.4 Hours

Environment

Temp: 10 °C

Axial Tilt: 40 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.07

Radius: 1.03

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.54 AU - 0.58 AU

Year: 188 Days

Day: 32.6 Hours

Environment

Temp: 15 °C

Axial Tilt: 3.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.59

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.98 AU - 1.06 AU

Year: 463 Days

Day: 32.5 Hours

Environment

Temp: -65 °C

Axial Tilt: 27.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.03 AU - 1.57 AU

Year: 666 Days

Day: 13.5 Hours

Environment

Temp: -100 °C

Axial Tilt: 2.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 78,960,657 km

• M1: 64,477 km (0.114 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.62

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.18 AU - 1.56 AU

Year: 721 Days

Day: 35.6 Hours

Environment

Temp: -89 °C

Axial Tilt: 9.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 78,960,657 km

• M1: 606,769 km (0.104 R)
• M2: 918,531 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.2

Radius: 10.8

Gravity: 6.84 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2.51 AU - 3.23 AU

Year: 2186 Days

Day: 12.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 78,960,657 km

• M1: 144,960 km (0.112 R)
• M2: 214,972 km (0.096 R)
• M3: 325,375 km (0.049 R)
• M4: 492,626 km (0.104 R)
• M5: 608,564 km (0.09 R)
• M6: 889,659 km (0.066 R)
• M7: 1,189,901 km (0.072 R)
• M8: 1,264,551 km (0.111 R)
• M9: 1,352,066 km (0.073 R)
• M10: 1,498,821 km (0.057 R)
• M11: 1,591,871 km (0.097 R)
• M12: 1,686,866 km (0.112 R)
• M13: 1,796,072 km (0.117 R)
• M14: 2,164,681 km (0.095 R)
• M15: 2,310,689 km (0.111 R)
• M16: 2,515,339 km (0.115 R)
• M17: 2,612,876 km (0.119 R)
• M18: 2,783,119 km (0.082 R)
• M19: 2,927,930 km (0.05 R)
• M20: 3,089,944 km (0.095 R)
• M21: 3,164,743 km (0.108 R)
• M22: 3,315,986 km (0.089 R)
• M23: 3,485,182 km (0.066 R)
• M24: 3,864,263 km (0.036 R)
• M25: 4,009,971 km (0.099 R)
• M26: 4,610,606 km (0.097 R)
• M27: 4,679,122 km (0.091 R)
• M28: 4,748,087 km (0.086 R)
• M29: 4,851,908 km (0.118 R)
• M30: 4,956,626 km (0.08 R)
• M31: 5,026,937 km (0.118 R)
• M32: 5,546,042 km (0.093 R)
• M33: 5,619,046 km (0.085 R)
• M34: 5,692,349 km (0.067 R)
• M35: 5,784,351 km (0.101 R)
• M36: 6,101,200 km (0.098 R)
• M37: 6,214,296 km (0.091 R)
• M38: 6,347,288 km (0.112 R)
• M39: 6,442,881 km (0.106 R)
• M40: 6,654,712 km (0.045 R)
• M41: 7,184,587 km (0.079 R)
• M42: 7,728,076 km (0.078 R)
• M43: 8,578,540 km (0.087 R)
• M44: 8,811,913 km (0.062 R)
• M45: 9,111,857 km (0.093 R)
• M46: 9,942,873 km (0.107 R)
• M47: 10,054,024 km (0.111 R)
• M48: 10,277,673 km (0.029 R)
• M49: 10,593,474 km (0.085 R)
• M50: 11,327,252 km (0.092 R)
• M51: 12,243,688 km (0.086 R)
• M52: 12,867,960 km (0.068 R)
• M53: 13,477,871 km (0.102 R)
• M54: 13,600,990 km (0.117 R)
• M55: 13,774,074 km (0.039 R)
• M56: 14,122,338 km (0.106 R)
• M57: 14,397,897 km (0.075 R)
• M58: 14,802,111 km (0.054 R)
• M59: 14,980,132 km (0.059 R)
• M60: 15,286,958 km (0.115 R)
• M61: 15,441,043 km (0.115 R)
• M62: 15,854,682 km (0.113 R)
• M63: 16,010,862 km (0.096 R)
• M64: 16,089,101 km (0.096 R)
• M65: 16,482,095 km (0.037 R)
• M66: 16,931,487 km (0.028 R)
• M67: 17,304,584 km (0.068 R)
• M68: 17,384,769 km (0.087 R)
• M69: 17,465,252 km (0.1 R)
• M70: 17,680,374 km (0.094 R)
• M71: 17,977,475 km (0.054 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.9

Radius: 11.4

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 4.82 AU - 5.5 AU

Year: 5270 Days

Day: 13 Hours

Environment

Temp: -176 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (68)

Outer Limit: 78,960,657 km

• M1: 175,628 km (0.046 R)
• M2: 355,893 km (0.065 R)
• M3: 447,746 km (0.061 R)
• M4: 736,470 km (0.079 R)
• M5: 826,678 km (0.083 R)
• M6: 1,044,642 km (0.045 R)
• M7: 1,254,677 km (0.087 R)
• M8: 1,435,691 km (0.091 R)
• M9: 1,566,140 km (0.097 R)
• M10: 1,655,450 km (0.062 R)
• M11: 1,839,455 km (0.106 R)
• M12: 1,950,008 km (0.084 R)
• M13: 2,144,785 km (0.112 R)
• M14: 2,414,659 km (0.079 R)
• M15: 2,571,288 km (0.112 R)
• M16: 3,174,916 km (0.106 R)
• M17: 3,424,594 km (0.041 R)
• M18: 3,700,902 km (0.118 R)
• M19: 3,801,282 km (0.093 R)
• M20: 4,359,581 km (0.084 R)
• M21: 4,487,039 km (0.093 R)
• M22: 4,702,609 km (0.091 R)
• M23: 5,166,213 km (0.089 R)
• M24: 5,324,039 km (0.069 R)
• M25: 5,483,360 km (0.111 R)
• M26: 5,575,213 km (0.088 R)
• M27: 5,714,040 km (0.099 R)
• M28: 6,766,162 km (0.056 R)
• M29: 7,188,626 km (0.11 R)
• M30: 7,903,256 km (0.061 R)
• M31: 8,693,880 km (0.109 R)
• M32: 8,801,292 km (0.114 R)
• M33: 9,126,069 km (0.116 R)
• M34: 9,207,749 km (0.059 R)
• M35: 9,703,815 km (0.061 R)
• M36: 10,521,069 km (0.092 R)
• M37: 10,692,957 km (0.044 R)
• M38: 10,923,637 km (0.104 R)
• M39: 11,184,984 km (0.078 R)
• M40: 11,536,838 km (0.116 R)
• M41: 12,131,191 km (0.097 R)
• M42: 12,492,769 km (0.118 R)
• M43: 13,103,128 km (0.104 R)
• M44: 13,380,931 km (0.106 R)
• M45: 13,598,446 km (0.044 R)
• M46: 14,289,439 km (0.112 R)
• M47: 14,384,583 km (0.11 R)
• M48: 14,863,446 km (0.075 R)
• M49: 15,056,427 km (0.096 R)
• M50: 15,315,082 km (0.067 R)
• M51: 15,640,457 km (0.051 R)
• M52: 16,165,696 km (0.066 R)
• M53: 16,364,212 km (0.099 R)
• M54: 16,563,626 km (0.094 R)
• M55: 17,402,720 km (0.116 R)
• M56: 17,708,199 km (0.103 R)
• M57: 18,704,671 km (0.033 R)
• M58: 19,122,348 km (0.074 R)
• M59: 19,507,862 km (0.116 R)
• M60: 20,180,005 km (0.115 R)
• M61: 21,692,290 km (0.075 R)
• M62: 22,314,916 km (0.078 R)
• M63: 23,315,576 km (0.074 R)
• M64: 23,539,973 km (0.077 R)
• M65: 23,802,667 km (0.066 R)
• M66: 24,104,107 km (0.092 R)
• M67: 25,015,906 km (0.102 R)
• M68: 25,630,154 km (0.111 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.8

Radius: 11.5

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 4.58 AU - 6.84 AU

Year: 6134 Days

Day: 7 Hours

Environment

Temp: -190 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (59)

Outer Limit: 78,960,657 km

• M1: 188,793 km (0.076 R)
• M2: 558,748 km (0.113 R)
• M3: 963,859 km (0.119 R)
• M4: 1,233,285 km (0.069 R)
• M5: 1,436,439 km (0.108 R)
• M6: 1,542,354 km (0.034 R)
• M7: 1,794,576 km (0.113 R)
• M8: 2,374,567 km (0.096 R)
• M9: 3,387,644 km (0.053 R)
• M10: 3,551,304 km (0.073 R)
• M11: 3,654,826 km (0.111 R)
• M12: 4,057,693 km (0.045 R)
• M13: 4,253,666 km (0.103 R)
• M14: 4,452,781 km (0.118 R)
• M15: 4,768,582 km (0.118 R)
• M16: 6,253,490 km (0.074 R)
• M17: 6,607,439 km (0.057 R)
• M18: 6,684,033 km (0.076 R)
• M19: 7,124,299 km (0.09 R)
• M20: 7,762,035 km (0.049 R)
• M21: 8,808,921 km (0.101 R)
• M22: 9,205,804 km (0.088 R)
• M23: 9,550,627 km (0.119 R)
• M24: 9,695,588 km (0.103 R)
• M25: 10,282,759 km (0.119 R)
• M26: 10,490,999 km (0.064 R)
• M27: 10,580,609 km (0.066 R)
• M28: 11,831,696 km (0.084 R)
• M29: 12,395,829 km (0.037 R)
• M30: 12,617,533 km (0.059 R)
• M31: 13,485,051 km (0.119 R)
• M32: 13,942,372 km (0.117 R)
• M33: 14,571,431 km (0.102 R)
• M34: 14,973,400 km (0.091 R)
• M35: 15,480,986 km (0.039 R)
• M36: 16,097,778 km (0.097 R)
• M37: 16,305,121 km (0.108 R)
• M38: 16,617,780 km (0.058 R)
• M39: 18,031,480 km (0.027 R)
• M40: 18,174,945 km (0.112 R)
• M41: 18,318,858 km (0.076 R)
• M42: 18,825,396 km (0.083 R)
• M43: 19,116,813 km (0.036 R)
• M44: 19,373,223 km (0.098 R)
• M45: 19,963,387 km (0.107 R)
• M46: 20,037,588 km (0.039 R)
• M47: 20,559,385 km (0.079 R)
• M48: 21,464,452 km (0.114 R)
• M49: 22,113,408 km (0.097 R)
• M50: 22,305,641 km (0.05 R)
• M51: 22,885,183 km (0.116 R)
• M52: 23,626,590 km (0.062 R)
• M53: 23,823,012 km (0.068 R)
• M54: 24,217,502 km (0.033 R)
• M55: 24,415,420 km (0.112 R)
• M56: 24,892,936 km (0.11 R)
• M57: 26,303,195 km (0.111 R)
• M58: 26,751,690 km (0.117 R)
• M59: 27,408,723 km (0.106 R)

Planet 9 - Gas Giant

Semi-Major Axis: 8.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.3

Radius: 8.8

Gravity: 10.62 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 7.92 AU - 9.96 AU

Year: 12018 Days

Day: 8.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 78,960,657 km

• M1: 658,081 km (0.089 R)
• M2: 790,924 km (0.047 R)
• M3: 912,248 km (0.114 R)
• M4: 1,018,313 km (0.087 R)
• M5: 1,361,490 km (0.1 R)
• M6: 1,818,961 km (0.066 R)
• M7: 2,321,609 km (0.068 R)
• M8: 2,439,044 km (0.116 R)
• M9: 2,498,584 km (0.109 R)
• M10: 2,741,381 km (0.104 R)
• M11: 2,865,697 km (0.103 R)
• M12: 3,650,637 km (0.112 R)
• M13: 3,891,639 km (0.105 R)
• M14: 4,944,658 km (0.112 R)
• M15: 5,288,584 km (0.083 R)
• M16: 5,366,225 km (0.062 R)
• M17: 5,600,944 km (0.1 R)
• M18: 6,121,246 km (0.072 R)
• M19: 6,366,586 km (0.055 R)
• M20: 7,380,112 km (0.083 R)
• M21: 8,397,826 km (0.112 R)
• M22: 8,946,252 km (0.087 R)
• M23: 9,131,604 km (0.108 R)
• M24: 10,077,511 km (0.059 R)
• M25: 10,173,852 km (0.103 R)
• M26: 10,415,901 km (0.12 R)
• M27: 11,054,385 km (0.101 R)
• M28: 11,604,456 km (0.105 R)
• M29: 12,163,504 km (0.049 R)
• M30: 13,307,778 km (0.085 R)
• M31: 14,594,768 km (0.068 R)
• M32: 15,530,353 km (0.062 R)
• M33: 15,809,204 km (0.093 R)
• M34: 15,921,253 km (0.078 R)
• M35: 17,807,233 km (0.116 R)
• M36: 19,402,096 km (0.106 R)
• M37: 19,943,790 km (0.056 R)
• M38: 20,429,534 km (0.053 R)
• M39: 20,551,606 km (0.103 R)
• M40: 20,612,642 km (0.047 R)
• M41: 21,042,137 km (0.119 R)
• M42: 21,165,406 km (0.083 R)
• M43: 21,412,691 km (0.119 R)
• M44: 23,042,859 km (0.054 R)
• M45: 23,808,651 km (0.107 R)
• M46: 24,001,482 km (0.083 R)
• M47: 24,388,492 km (0.102 R)
• M48: 27,424,132 km (0.116 R)
• M49: 27,828,794 km (0.093 R)
• M50: 28,303,319 km (0.072 R)
• M51: 29,604,970 km (0.086 R)
• M52: 30,716,332 km (0.079 R)
• M53: 31,277,025 km (0.119 R)
• M54: 31,770,399 km (0.076 R)
• M55: 31,841,159 km (0.056 R)
• M56: 31,911,919 km (0.077 R)
• M57: 32,479,792 km (0.096 R)
• M58: 32,907,792 km (0.053 R)
• M59: 33,625,562 km (0.098 R)
• M60: 33,697,519 km (0.072 R)
• M61: 34,058,648 km (0.084 R)
• M62: 34,203,459 km (0.097 R)
• M63: 34,348,419 km (0.079 R)
• M64: 36,695,610 km (0.057 R)
• M65: 36,918,361 km (0.062 R)
• M66: 39,930,514 km (0.079 R)
• M67: 40,006,809 km (0.033 R)
• M68: 40,389,032 km (0.062 R)
• M69: 40,619,113 km (0.038 R)
• M70: 41,157,217 km (0.095 R)
• M71: 42,240,904 km (0.081 R)
• M72: 44,752,652 km (0.1 R)
• M73: 45,866,707 km (0.116 R)
• M74: 46,668,103 km (0.056 R)
• M75: 48,040,963 km (0.08 R)
• M76: 48,447,270 km (0.117 R)
• M77: 48,610,033 km (0.03 R)
• M78: 49,017,986 km (0.037 R)
• M79: 50,001,592 km (0.1 R)
• M80: 50,661,020 km (0.09 R)
• M81: 51,738,573 km (0.093 R)
• M82: 51,821,750 km (0.086 R)
• M83: 51,988,252 km (0.088 R)
• M84: 52,405,480 km (0.117 R)
• M85: 52,823,756 km (0.102 R)
• M86: 53,243,079 km (0.062 R)
• M87: 53,663,599 km (0.097 R)
• M88: 55,611,812 km (0.106 R)
• M89: 55,697,082 km (0.089 R)
• M90: 55,867,774 km (0.116 R)
• M91: 57,324,857 km (0.045 R)

Planet 10 - Ice Giant

Semi-Major Axis: 13.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 625.4

Radius: 3.7

Gravity: 45.68 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 11.24 AU - 15.62 AU

Year: 22127 Days

Day: 21.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (98)

Outer Limit: 78,960,657 km

• M1: 65,973 km (0.113 R)
• M2: 124,914 km (0.065 R)
• M3: 607,667 km (0.087 R)
• M4: 824,583 km (0.093 R)
• M5: 1,898,995 km (0.116 R)
• M6: 2,504,119 km (0.067 R)
• M7: 2,769,505 km (0.085 R)
• M8: 2,885,893 km (0.059 R)
• M9: 3,326,458 km (0.116 R)
• M10: 4,135,633 km (0.114 R)
• M11: 6,478,785 km (0.119 R)
• M12: 6,893,619 km (0.119 R)
• M13: 8,023,083 km (0.058 R)
• M14: 8,078,285 km (0.112 R)
• M15: 8,244,787 km (0.086 R)
• M16: 8,750,578 km (0.082 R)
• M17: 9,266,541 km (0.118 R)
• M18: 9,674,494 km (0.086 R)
• M19: 9,910,410 km (0.118 R)
• M20: 10,327,489 km (0.105 R)
• M21: 11,179,000 km (0.056 R)
• M22: 11,426,435 km (0.112 R)
• M23: 11,550,751 km (0.103 R)
• M24: 11,613,133 km (0.075 R)
• M25: 12,052,801 km (0.117 R)
• M26: 12,883,518 km (0.038 R)
• M27: 14,130,716 km (0.069 R)
• M28: 14,599,705 km (0.101 R)
• M29: 14,734,792 km (0.104 R)
• M30: 15,210,364 km (0.106 R)
• M31: 15,278,730 km (0.113 R)
• M32: 15,898,514 km (0.116 R)
• M33: 16,246,478 km (0.119 R)
• M34: 16,596,837 km (0.107 R)
• M35: 17,662,871 km (0.114 R)
• M36: 20,010,062 km (0.051 R)
• M37: 20,915,129 km (0.087 R)
• M38: 21,067,270 km (0.105 R)
• M39: 21,602,681 km (0.073 R)
• M40: 22,065,088 km (0.095 R)
• M41: 22,142,430 km (0.063 R)
• M42: 22,219,921 km (0.101 R)
• M43: 22,921,386 km (0.042 R)
• M44: 28,198,002 km (0.111 R)
• M45: 28,282,076 km (0.091 R)
• M46: 28,366,150 km (0.064 R)
• M47: 28,534,447 km (0.095 R)
• M48: 29,466,592 km (0.03 R)
• M49: 29,637,283 km (0.095 R)
• M50: 30,840,199 km (0.075 R)
• M51: 32,939,357 km (0.077 R)
• M52: 33,471,327 km (0.09 R)
• M53: 33,916,829 km (0.09 R)
• M54: 34,903,726 km (0.064 R)
• M55: 35,084,291 km (0.094 R)
• M56: 38,199,068 km (0.111 R)
• M57: 38,291,969 km (0.05 R)
• M58: 39,131,811 km (0.06 R)
• M59: 39,413,055 km (0.108 R)
• M60: 39,977,787 km (0.056 R)
• M61: 41,305,618 km (0.093 R)
• M62: 41,687,541 km (0.108 R)
• M63: 42,358,936 km (0.074 R)
• M64: 43,324,291 km (0.051 R)
• M65: 44,296,827 km (0.074 R)
• M66: 45,571,850 km (0.027 R)
• M67: 45,966,489 km (0.056 R)
• M68: 46,164,257 km (0.11 R)
• M69: 46,362,325 km (0.062 R)
• M70: 47,257,219 km (0.039 R)
• M71: 47,856,957 km (0.103 R)
• M72: 47,957,188 km (0.087 R)
• M73: 50,280,892 km (0.077 R)
• M74: 51,816,065 km (0.116 R)
• M75: 53,678,409 km (0.095 R)
• M76: 53,990,919 km (0.113 R)
• M77: 55,352,110 km (0.051 R)
• M78: 56,512,690 km (0.12 R)
• M79: 57,468,321 km (0.111 R)
• M80: 57,894,675 km (0.115 R)
• M81: 58,857,936 km (0.092 R)
• M82: 59,503,002 km (0.111 R)
• M83: 60,042,452 km (0.107 R)
• M84: 61,343,504 km (0.117 R)
• M85: 61,779,283 km (0.079 R)
• M86: 64,525,900 km (0.106 R)
• M87: 65,747,067 km (0.118 R)
• M88: 68,099,494 km (0.111 R)
• M89: 69,229,257 km (0.086 R)
• M90: 69,682,838 km (0.106 R)
• M91: 70,593,141 km (0.074 R)
• M92: 71,621,925 km (0.025 R)
• M93: 72,425,565 km (0.112 R)
• M94: 73,463,026 km (0.106 R)
• M95: 74,737,899 km (0.085 R)
• M96: 74,854,137 km (0.067 R)
• M97: 75,319,686 km (0.098 R)
• M98: 75,669,595 km (0.099 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 199 - 15,716 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit