🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.64

Radius: 0.84

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.21 AU - 1.23 AU

Year: 510 Days

Day: 13 Hours

Environment

Temp: -34 °C

Axial Tilt: 33.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.98

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.24 AU - 1.48 AU

Year: 601 Days

Day: 12.3 Hours

Environment

Temp: -41 °C

Axial Tilt: 27.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 4.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 180.1

Radius: 12.9

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 4.48 AU - 4.6 AU

Year: 3664 Days

Day: 12.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (63)

Outer Limit: 103,061,493 km

• M1: 165,904 km (0.095 R)
• M2: 284,984 km (0.107 R)
• M3: 499,507 km (0.037 R)
• M4: 630,555 km (0.104 R)
• M5: 940,971 km (0.052 R)
• M6: 1,046,437 km (0.09 R)
• M7: 1,156,392 km (0.112 R)
• M8: 1,408,763 km (0.117 R)
• M9: 1,604,886 km (0.081 R)
• M10: 2,152,564 km (0.114 R)
• M11: 2,271,344 km (0.037 R)
• M12: 2,355,867 km (0.104 R)
• M13: 2,490,954 km (0.116 R)
• M14: 2,717,595 km (0.105 R)
• M15: 2,807,653 km (0.053 R)
• M16: 3,341,418 km (0.038 R)
• M17: 3,493,858 km (0.095 R)
• M18: 3,606,356 km (0.063 R)
• M19: 3,719,901 km (0.081 R)
• M20: 3,820,281 km (0.049 R)
• M21: 3,936,219 km (0.096 R)
• M22: 4,038,544 km (0.093 R)
• M23: 4,171,537 km (0.101 R)
• M24: 4,305,876 km (0.083 R)
• M25: 4,518,005 km (0.092 R)
• M26: 4,889,606 km (0.069 R)
• M27: 5,271,231 km (0.116 R)
• M28: 5,384,327 km (0.061 R)
• M29: 5,531,082 km (0.118 R)
• M30: 5,662,579 km (0.108 R)
• M31: 5,911,958 km (0.088 R)
• M32: 6,318,715 km (0.066 R)
• M33: 6,875,219 km (0.069 R)
• M34: 7,087,947 km (0.12 R)
• M35: 7,177,257 km (0.049 R)
• M36: 7,923,750 km (0.109 R)
• M37: 8,771,671 km (0.119 R)
• M38: 9,118,888 km (0.11 R)
• M39: 9,333,411 km (0.118 R)
• M40: 9,648,315 km (0.053 R)
• M41: 9,826,935 km (0.107 R)
• M42: 10,006,751 km (0.108 R)
• M43: 10,716,443 km (0.099 R)
• M44: 10,798,573 km (0.114 R)
• M45: 10,922,290 km (0.114 R)
• M46: 11,067,101 km (0.098 R)
• M47: 11,463,386 km (0.09 R)
• M48: 11,610,590 km (0.074 R)
• M49: 11,843,215 km (0.11 R)
• M50: 12,162,905 km (0.087 R)
• M51: 12,313,102 km (0.062 R)
• M52: 12,399,120 km (0.072 R)
• M53: 12,593,598 km (0.026 R)
• M54: 12,702,056 km (0.1 R)
• M55: 12,788,972 km (0.031 R)
• M56: 13,536,513 km (0.077 R)
• M57: 13,625,374 km (0.111 R)
• M58: 13,915,594 km (0.098 R)
• M59: 14,005,203 km (0.093 R)
• M60: 14,298,116 km (0.106 R)
• M61: 14,661,489 km (0.103 R)
• M62: 14,844,148 km (0.109 R)
• M63: 15,397,062 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 11.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.9

Radius: 13.3

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 9.68 AU - 12.96 AU

Year: 14425 Days

Day: 8.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (87)

Outer Limit: 103,061,493 km

• M1: 279,000 km (0.094 R)
• M2: 514,018 km (0.076 R)
• M3: 927,357 km (0.11 R)
• M4: 1,037,012 km (0.067 R)
• M5: 1,132,007 km (0.048 R)
• M6: 1,290,730 km (0.067 R)
• M7: 1,743,862 km (0.116 R)
• M8: 2,396,857 km (0.061 R)
• M9: 2,763,970 km (0.114 R)
• M10: 3,262,580 km (0.103 R)
• M11: 3,551,902 km (0.106 R)
• M12: 3,670,085 km (0.077 R)
• M13: 4,469,984 km (0.103 R)
• M14: 4,565,727 km (0.08 R)
• M15: 4,726,844 km (0.118 R)
• M16: 5,221,863 km (0.049 R)
• M17: 5,977,931 km (0.114 R)
• M18: 7,213,310 km (0.05 R)
• M19: 7,898,768 km (0.11 R)
• M20: 8,406,802 km (0.083 R)
• M21: 8,525,583 km (0.06 R)
• M22: 9,046,632 km (0.04 R)
• M23: 9,249,936 km (0.109 R)
• M24: 10,077,960 km (0.085 R)
• M25: 10,543,658 km (0.065 R)
• M26: 10,929,770 km (0.113 R)
• M27: 11,059,621 km (0.107 R)
• M28: 12,071,651 km (0.095 R)
• M29: 12,205,840 km (0.095 R)
• M30: 12,295,599 km (0.038 R)
• M31: 12,747,534 km (0.11 R)
• M32: 13,113,151 km (0.111 R)
• M33: 13,205,004 km (0.103 R)
• M34: 13,761,209 km (0.089 R)
• M35: 13,948,356 km (0.029 R)
• M36: 14,705,171 km (0.081 R)
• M37: 14,800,765 km (0.034 R)
• M38: 15,475,451 km (0.103 R)
• M39: 15,767,616 km (0.056 R)
• M40: 16,160,160 km (0.095 R)
• M41: 16,555,847 km (0.114 R)
• M42: 16,655,329 km (0.107 R)
• M43: 17,660,627 km (0.096 R)
• M44: 18,273,230 km (0.119 R)
• M45: 18,478,927 km (0.057 R)
• M46: 19,519,381 km (0.099 R)
• M47: 20,578,833 km (0.116 R)
• M48: 20,954,024 km (0.105 R)
• M49: 22,532,431 km (0.096 R)
• M50: 22,863,791 km (0.087 R)
• M51: 22,974,643 km (0.112 R)
• M52: 23,587,246 km (0.101 R)
• M53: 23,811,493 km (0.08 R)
• M54: 24,885,755 km (0.096 R)
• M55: 25,228,335 km (0.069 R)
• M56: 25,457,518 km (0.098 R)
• M57: 25,802,641 km (0.058 R)
• M58: 25,975,875 km (0.051 R)
• M59: 26,207,303 km (0.064 R)
• M60: 26,847,432 km (0.062 R)
• M61: 26,964,418 km (0.063 R)
• M62: 27,140,046 km (0.106 R)
• M63: 27,257,480 km (0.103 R)
• M64: 28,024,468 km (0.072 R)
• M65: 28,321,420 km (0.079 R)
• M66: 29,338,686 km (0.117 R)
• M67: 32,026,810 km (0.108 R)
• M68: 32,898,517 km (0.102 R)
• M69: 33,023,730 km (0.091 R)
• M70: 34,347,522 km (0.109 R)
• M71: 34,474,530 km (0.116 R)
• M72: 34,792,725 km (0.081 R)
• M73: 35,175,845 km (0.091 R)
• M74: 35,560,311 km (0.095 R)
• M75: 35,946,274 km (0.096 R)
• M76: 38,488,241 km (0.096 R)
• M77: 39,414,850 km (0.116 R)
• M78: 40,014,438 km (0.07 R)
• M79: 41,155,122 km (0.115 R)
• M80: 41,492,615 km (0.064 R)
• M81: 43,399,838 km (0.054 R)
• M82: 43,812,280 km (0.107 R)
• M83: 44,019,024 km (0.063 R)
• M84: 45,126,796 km (0.108 R)
• M85: 45,823,922 km (0.112 R)
• M86: 46,314,005 km (0.093 R)
• M87: 46,524,639 km (0.054 R)

Planet 5 - Ice Giant

Semi-Major Axis: 12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 741.1

Radius: 3.3

Gravity: 68.05 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 10.43 AU - 13.57 AU

Year: 15744 Days

Day: 19.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (89)

Outer Limit: 103,061,493 km

• M1: 853,157 km (0.059 R)
• M2: 899,532 km (0.059 R)
• M3: 923,019 km (0.085 R)
• M4: 970,741 km (0.099 R)
• M5: 994,826 km (0.098 R)
• M6: 1,019,210 km (0.111 R)
• M7: 1,068,428 km (0.091 R)
• M8: 1,093,411 km (0.11 R)
• M9: 1,143,975 km (0.111 R)
• M10: 1,603,839 km (0.103 R)
• M11: 2,337,916 km (0.071 R)
• M12: 2,636,513 km (0.115 R)
• M13: 2,947,078 km (0.068 R)
• M14: 3,452,868 km (0.117 R)
• M15: 4,102,422 km (0.064 R)
• M16: 4,501,699 km (0.043 R)
• M17: 6,263,663 km (0.106 R)
• M18: 6,537,577 km (0.071 R)
• M19: 7,191,618 km (0.103 R)
• M20: 7,478,248 km (0.065 R)
• M21: 7,526,269 km (0.025 R)
• M22: 8,062,577 km (0.033 R)
• M23: 8,161,461 km (0.118 R)
• M24: 9,638,890 km (0.12 R)
• M25: 10,650,620 km (0.06 R)
• M26: 10,922,290 km (0.051 R)
• M27: 12,429,040 km (0.044 R)
• M28: 12,543,183 km (0.075 R)
• M29: 12,945,601 km (0.094 R)
• M30: 13,586,329 km (0.071 R)
• M31: 14,177,839 km (0.066 R)
• M32: 14,959,189 km (0.036 R)
• M33: 15,080,662 km (0.115 R)
• M34: 15,324,507 km (0.039 R)
• M35: 15,385,692 km (0.079 R)
• M36: 17,834,011 km (0.025 R)
• M37: 18,350,872 km (0.083 R)
• M38: 19,135,512 km (0.085 R)
• M39: 21,280,895 km (0.046 R)
• M40: 21,485,845 km (0.103 R)
• M41: 22,659,739 km (0.029 R)
• M42: 23,500,928 km (0.116 R)
• M43: 25,575,402 km (0.109 R)
• M44: 26,304,242 km (0.089 R)
• M45: 26,597,753 km (0.105 R)
• M46: 27,782,269 km (0.117 R)
• M47: 28,456,208 km (0.108 R)
• M48: 29,819,942 km (0.106 R)
• M49: 29,972,831 km (0.118 R)
• M50: 30,509,738 km (0.097 R)
• M51: 31,671,216 km (0.041 R)
• M52: 32,846,905 km (0.055 R)
• M53: 33,559,290 km (0.111 R)
• M54: 34,918,537 km (0.11 R)
• M55: 36,295,735 km (0.099 R)
• M56: 37,690,585 km (0.088 R)
• M57: 39,605,438 km (0.048 R)
• M58: 39,857,510 km (0.112 R)
• M59: 39,941,584 km (0.088 R)
• M60: 40,025,808 km (0.086 R)
• M61: 41,210,922 km (0.084 R)
• M62: 41,296,043 km (0.097 R)
• M63: 41,893,238 km (0.084 R)
• M64: 43,702,176 km (0.092 R)
• M65: 45,448,581 km (0.091 R)
• M66: 47,663,228 km (0.076 R)
• M67: 48,379,353 km (0.101 R)
• M68: 48,559,020 km (0.044 R)
• M69: 48,828,745 km (0.085 R)
• M70: 50,185,149 km (0.11 R)
• M71: 52,012,936 km (0.098 R)
• M72: 53,862,414 km (0.085 R)
• M73: 54,048,514 km (0.068 R)
• M74: 54,514,810 km (0.09 R)
• M75: 54,795,157 km (0.102 R)
• M76: 55,263,548 km (0.051 R)
• M77: 56,487,558 km (0.07 R)
• M78: 57,435,110 km (0.113 R)
• M79: 57,625,249 km (0.086 R)
• M80: 58,101,569 km (0.084 R)
• M81: 59,153,990 km (0.093 R)
• M82: 59,442,116 km (0.078 R)
• M83: 60,986,714 km (0.07 R)
• M84: 62,251,264 km (0.085 R)
• M85: 64,213,689 km (0.081 R)
• M86: 64,411,009 km (0.051 R)
• M87: 65,301,565 km (0.089 R)
• M88: 65,698,747 km (0.117 R)
• M89: 66,395,574 km (0.105 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 589.9

Radius: 4.3

Gravity: 31.9 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 13.74 AU - 14.24 AU

Year: 19819 Days

Day: 16.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 103,061,493 km

• M1: 78,838 km (0.117 R)
• M2: 125,363 km (0.101 R)
• M3: 227,090 km (0.097 R)
• M4: 256,860 km (0.102 R)
• M5: 390,301 km (0.054 R)
• M6: 427,102 km (0.046 R)
• M7: 524,191 km (0.108 R)
• M8: 607,218 km (0.053 R)
• M9: 833,410 km (0.092 R)
• M10: 881,580 km (0.072 R)
• M11: 1,559,857 km (0.06 R)
• M12: 1,649,915 km (0.095 R)
• M13: 2,569,942 km (0.07 R)
• M14: 3,155,019 km (0.042 R)
• M15: 3,269,162 km (0.075 R)
• M16: 4,272,216 km (0.112 R)
• M17: 4,356,440 km (0.095 R)
• M18: 4,785,037 km (0.094 R)
• M19: 5,498,470 km (0.117 R)
• M20: 5,544,247 km (0.078 R)
• M21: 6,678,199 km (0.077 R)
• M22: 6,923,240 km (0.117 R)
• M23: 7,523,277 km (0.117 R)
• M24: 7,625,003 km (0.06 R)
• M25: 8,139,919 km (0.107 R)
• M26: 8,825,975 km (0.029 R)
• M27: 9,040,798 km (0.107 R)
• M28: 9,094,803 km (0.107 R)
• M29: 9,148,957 km (0.113 R)
• M30: 9,640,536 km (0.086 R)
• M31: 9,917,292 km (0.118 R)
• M32: 10,140,641 km (0.098 R)
• M33: 10,196,740 km (0.034 R)
• M34: 10,535,430 km (0.077 R)
• M35: 12,104,712 km (0.091 R)
• M36: 12,946,798 km (0.118 R)
• M37: 13,374,798 km (0.102 R)
• M38: 14,370,521 km (0.101 R)
• M39: 15,261,227 km (0.109 R)
• M40: 15,713,312 km (0.086 R)
• M41: 16,104,211 km (0.062 R)
• M42: 16,762,890 km (0.102 R)
• M43: 16,829,162 km (0.087 R)
• M44: 17,095,446 km (0.064 R)
• M45: 17,162,317 km (0.069 R)
• M46: 17,699,672 km (0.04 R)
• M47: 18,653,508 km (0.088 R)
• M48: 19,344,800 km (0.105 R)
• M49: 19,553,938 km (0.069 R)
• M50: 20,966,590 km (0.073 R)
• M51: 22,193,143 km (0.097 R)
• M52: 22,339,001 km (0.069 R)
• M53: 23,889,134 km (0.104 R)
• M54: 25,321,235 km (0.081 R)
• M55: 25,932,641 km (0.086 R)
• M56: 28,505,126 km (0.112 R)
• M57: 28,663,550 km (0.051 R)
• M58: 29,140,768 km (0.115 R)
• M59: 29,220,653 km (0.105 R)
• M60: 29,701,012 km (0.108 R)
• M61: 30,507,344 km (0.082 R)
• M62: 31,976,844 km (0.067 R)
• M63: 32,141,551 km (0.046 R)
• M64: 32,471,714 km (0.11 R)
• M65: 35,153,854 km (0.093 R)
• M66: 36,177,702 km (0.102 R)
• M67: 36,693,366 km (0.064 R)
• M68: 37,124,956 km (0.066 R)
• M69: 37,993,072 km (0.082 R)
• M70: 42,342,630 km (0.114 R)
• M71: 46,287,077 km (0.08 R)
• M72: 47,596,358 km (0.119 R)
• M73: 48,633,669 km (0.078 R)
• M74: 50,730,583 km (0.115 R)
• M75: 51,403,773 km (0.075 R)
• M76: 51,789,885 km (0.099 R)
• M77: 53,051,444 km (0.103 R)
• M78: 53,636,970 km (0.098 R)
• M79: 53,734,807 km (0.107 R)
• M80: 53,930,631 km (0.075 R)
• M81: 56,497,431 km (0.113 R)
• M82: 57,795,791 km (0.083 R)
• M83: 60,625,285 km (0.075 R)
• M84: 60,829,187 km (0.087 R)
• M85: 61,135,264 km (0.073 R)
• M86: 61,237,440 km (0.056 R)
• M87: 62,776,802 km (0.096 R)
• M88: 64,225,059 km (0.11 R)
• M89: 67,259,801 km (0.08 R)
• M90: 67,682,116 km (0.106 R)
• M91: 67,787,732 km (0.105 R)
• M92: 69,699,742 km (0.09 R)
• M93: 70,233,956 km (0.102 R)
• M94: 70,340,919 km (0.116 R)
• M95: 71,306,423 km (0.053 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 850.2

Radius: 6.5

Gravity: 20.12 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 16.25 AU - 19.23 AU

Year: 28300 Days

Day: 21.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 103,061,493 km

• M1: 106,813 km (0.116 R)
• M2: 309,069 km (0.101 R)
• M3: 487,839 km (0.042 R)
• M4: 563,386 km (0.099 R)
• M5: 1,266,944 km (0.113 R)
• M6: 1,445,564 km (0.062 R)
• M7: 1,670,709 km (0.036 R)
• M8: 2,677,951 km (0.059 R)
• M9: 2,769,206 km (0.073 R)
• M10: 2,861,358 km (0.054 R)
• M11: 3,240,140 km (0.087 R)
• M12: 3,337,379 km (0.056 R)
• M13: 3,386,297 km (0.107 R)
• M14: 4,523,241 km (0.049 R)
• M15: 4,686,752 km (0.073 R)
• M16: 5,825,790 km (0.086 R)
• M17: 7,555,291 km (0.097 R)
• M18: 7,945,143 km (0.079 R)
• M19: 8,609,657 km (0.113 R)
• M20: 8,880,279 km (0.1 R)
• M21: 9,360,937 km (0.098 R)
• M22: 9,430,201 km (0.091 R)
• M23: 10,418,893 km (0.059 R)
• M24: 12,722,401 km (0.118 R)
• M25: 17,086,919 km (0.111 R)
• M26: 18,809,838 km (0.025 R)
• M27: 19,072,981 km (0.066 R)
• M28: 20,497,003 km (0.071 R)
• M29: 20,677,418 km (0.088 R)
• M30: 23,164,033 km (0.102 R)
• M31: 25,452,283 km (0.108 R)
• M32: 26,035,415 km (0.05 R)
• M33: 26,623,185 km (0.091 R)
• M34: 26,721,471 km (0.043 R)
• M35: 27,215,144 km (0.036 R)
• M36: 27,314,178 km (0.097 R)
• M37: 29,524,337 km (0.078 R)
• M38: 30,342,188 km (0.071 R)
• M39: 32,314,337 km (0.06 R)
• M40: 33,900,224 km (0.076 R)
• M41: 34,006,887 km (0.115 R)
• M42: 34,756,372 km (0.108 R)
• M43: 34,971,494 km (0.071 R)
• M44: 36,053,984 km (0.064 R)
• M45: 37,698,065 km (0.075 R)
• M46: 38,140,576 km (0.099 R)
• M47: 40,379,158 km (0.061 R)
• M48: 41,286,320 km (0.065 R)
• M49: 41,628,300 km (0.061 R)
• M50: 43,005,498 km (0.116 R)
• M51: 43,699,632 km (0.093 R)
• M52: 44,164,583 km (0.108 R)
• M53: 46,276,605 km (0.055 R)
• M54: 46,394,937 km (0.057 R)
• M55: 51,575,960 km (0.109 R)
• M56: 51,821,450 km (0.1 R)
• M57: 53,550,054 km (0.082 R)
• M58: 53,923,001 km (0.092 R)
• M59: 56,683,830 km (0.058 R)
• M60: 56,810,390 km (0.057 R)
• M61: 57,063,809 km (0.078 R)
• M62: 58,848,511 km (0.061 R)
• M63: 59,104,922 km (0.084 R)
• M64: 61,169,821 km (0.03 R)
• M65: 61,950,273 km (0.09 R)
• M66: 62,864,765 km (0.09 R)
• M67: 65,369,931 km (0.101 R)
• M68: 68,176,387 km (0.069 R)
• M69: 70,613,037 km (0.106 R)
• M70: 71,158,322 km (0.101 R)
• M71: 72,665,221 km (0.093 R)
• M72: 73,905,986 km (0.115 R)
• M73: 75,849,860 km (0.108 R)
• M74: 77,951,262 km (0.063 R)
• M75: 80,925,267 km (0.049 R)
• M76: 82,641,305 km (0.105 R)
• M77: 84,224,798 km (0.072 R)
• M78: 84,513,821 km (0.114 R)
• M79: 84,658,333 km (0.066 R)
• M80: 85,237,725 km (0.065 R)
• M81: 87,714,318 km (0.119 R)
• M82: 89,919,241 km (0.065 R)
• M83: 90,658,254 km (0.08 R)
• M84: 91,399,213 km (0.048 R)
• M85: 91,696,164 km (0.075 R)
• M86: 91,993,415 km (0.083 R)
• M87: 92,439,965 km (0.108 R)
• M88: 92,887,263 km (0.044 R)
• M89: 93,185,860 km (0.119 R)
• M90: 97,550,827 km (0.085 R)
• M91: 100,140,515 km (0.088 R)
• M92: 100,293,554 km (0.1 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 536 - 12,176 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit