🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.37

Radius: 0.67

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.47 AU - 0.67 AU

Year: 278 Days

Day: 19.6 Hours

Environment

Temp: -116 °C

Axial Tilt: 41.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48

Radius: 10

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.69 AU - 1.89 AU

Year: 1546 Days

Day: 9.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 41,491,435 km

• M1: 153,338 km (0.047 R)
• M2: 220,956 km (0.091 R)
• M3: 287,378 km (0.053 R)
• M4: 391,498 km (0.084 R)
• M5: 470,784 km (0.055 R)
• M6: 553,213 km (0.089 R)
• M7: 637,437 km (0.117 R)
• M8: 702,960 km (0.042 R)
• M9: 770,878 km (0.093 R)
• M10: 1,104,182 km (0.116 R)
• M11: 1,262,606 km (0.113 R)
• M12: 1,459,776 km (0.041 R)
• M13: 1,564,943 km (0.079 R)
• M14: 1,941,631 km (0.075 R)
• M15: 2,236,638 km (0.079 R)
• M16: 2,395,810 km (0.099 R)
• M17: 2,489,309 km (0.114 R)
• M18: 2,660,897 km (0.05 R)
• M19: 2,849,540 km (0.084 R)
• M20: 2,962,187 km (0.056 R)
• M21: 3,288,460 km (0.115 R)
• M22: 3,378,818 km (0.115 R)
• M23: 3,505,228 km (0.09 R)
• M24: 3,799,337 km (0.082 R)
• M25: 3,938,463 km (0.095 R)
• M26: 4,034,505 km (0.111 R)
• M27: 4,116,485 km (0.033 R)
• M28: 4,199,063 km (0.094 R)
• M29: 4,312,458 km (0.118 R)
• M30: 4,612,102 km (0.114 R)
• M31: 4,682,264 km (0.065 R)
• M32: 4,823,634 km (0.03 R)
• M33: 4,910,700 km (0.065 R)
• M34: 5,054,463 km (0.12 R)
• M35: 5,150,954 km (0.102 R)
• M36: 5,337,802 km (0.112 R)
• M37: 5,601,393 km (0.118 R)
• M38: 5,684,719 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.4

Radius: 13.5

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.51 AU - 2.39 AU

Year: 1758 Days

Day: 13.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 41,491,435 km

• M1: 211,382 km (0.102 R)
• M2: 298,448 km (0.059 R)
• M3: 500,704 km (0.085 R)
• M4: 678,277 km (0.097 R)
• M5: 899,382 km (0.08 R)
• M6: 1,030,131 km (0.075 R)
• M7: 1,197,830 km (0.107 R)
• M8: 1,398,740 km (0.11 R)
• M9: 1,536,520 km (0.087 R)
• M10: 1,739,075 km (0.103 R)
• M11: 2,096,764 km (0.12 R)
• M12: 2,218,237 km (0.094 R)
• M13: 2,429,170 km (0.114 R)
• M14: 2,547,203 km (0.097 R)
• M15: 2,707,572 km (0.093 R)
• M16: 3,728,428 km (0.087 R)
• M17: 3,819,533 km (0.063 R)
• M18: 3,969,280 km (0.046 R)
• M19: 4,085,667 km (0.095 R)
• M20: 4,179,765 km (0.118 R)
• M21: 4,298,246 km (0.103 R)
• M22: 4,430,042 km (0.091 R)
• M23: 4,611,953 km (0.088 R)
• M24: 4,783,990 km (0.119 R)
• M25: 4,933,139 km (0.106 R)
• M26: 5,020,804 km (0.06 R)
• M27: 5,134,349 km (0.104 R)
• M28: 5,351,415 km (0.057 R)
• M29: 5,728,402 km (0.059 R)
• M30: 5,860,497 km (0.063 R)
• M31: 6,100,900 km (0.106 R)
• M32: 6,330,832 km (0.065 R)
• M33: 6,646,633 km (0.069 R)
• M34: 7,094,679 km (0.104 R)
• M35: 7,509,215 km (0.05 R)
• M36: 7,902,358 km (0.093 R)
• M37: 8,064,372 km (0.119 R)
• M38: 9,199,072 km (0.045 R)
• M39: 9,557,060 km (0.081 R)
• M40: 9,935,543 km (0.106 R)
• M41: 10,094,715 km (0.053 R)
• M42: 10,270,791 km (0.101 R)
• M43: 11,182,890 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.1

Radius: 10.3

Gravity: 7.1 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 3.4 AU - 5.2 AU

Year: 5757 Days

Day: 11.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 41,491,435 km

• M1: 136,732 km (0.116 R)
• M2: 217,366 km (0.095 R)
• M3: 361,129 km (0.071 R)
• M4: 509,381 km (0.108 R)
• M5: 641,924 km (0.116 R)
• M6: 828,623 km (0.111 R)
• M7: 899,831 km (0.107 R)
• M8: 1,111,063 km (0.096 R)
• M9: 1,239,269 km (0.097 R)
• M10: 1,857,706 km (0.097 R)
• M11: 2,497,836 km (0.029 R)
• M12: 2,732,854 km (0.099 R)
• M13: 2,798,378 km (0.111 R)
• M14: 3,457,506 km (0.119 R)
• M15: 3,914,976 km (0.101 R)
• M16: 4,163,608 km (0.119 R)
• M17: 4,754,819 km (0.068 R)
• M18: 4,833,956 km (0.074 R)
• M19: 5,020,205 km (0.088 R)
• M20: 5,154,694 km (0.117 R)
• M21: 5,317,756 km (0.107 R)
• M22: 5,958,483 km (0.118 R)
• M23: 6,360,453 km (0.103 R)
• M24: 6,623,595 km (0.105 R)
• M25: 7,557,236 km (0.072 R)
• M26: 7,992,266 km (0.077 R)
• M27: 9,247,093 km (0.064 R)
• M28: 9,346,127 km (0.074 R)
• M29: 9,645,323 km (0.114 R)
• M30: 9,813,022 km (0.097 R)
• M31: 10,253,438 km (0.087 R)
• M32: 10,493,393 km (0.119 R)
• M33: 11,048,551 km (0.118 R)
• M34: 11,435,860 km (0.094 R)
• M35: 12,007,024 km (0.062 R)
• M36: 12,079,130 km (0.05 R)
• M37: 12,551,112 km (0.102 R)
• M38: 12,881,424 km (0.111 R)
• M39: 13,813,867 km (0.074 R)
• M40: 14,768,003 km (0.081 R)
• M41: 15,350,836 km (0.037 R)
• M42: 15,586,004 km (0.085 R)
• M43: 15,704,036 km (0.116 R)
• M44: 15,980,643 km (0.093 R)
• M45: 16,298,688 km (0.095 R)
• M46: 16,378,573 km (0.11 R)
• M47: 16,739,553 km (0.027 R)
• M48: 16,941,211 km (0.103 R)
• M49: 17,714,931 km (0.12 R)
• M50: 18,917,997 km (0.086 R)
• M51: 20,019,037 km (0.065 R)
• M52: 20,577,337 km (0.104 R)
• M53: 20,663,655 km (0.116 R)
• M54: 20,836,739 km (0.114 R)
• M55: 21,010,273 km (0.087 R)
• M56: 21,402,369 km (0.114 R)
• M57: 21,533,716 km (0.105 R)
• M58: 22,282,603 km (0.097 R)
• M59: 22,905,828 km (0.105 R)
• M60: 24,033,048 km (0.12 R)
• M61: 24,443,245 km (0.106 R)
• M62: 24,763,833 km (0.093 R)
• M63: 25,131,993 km (0.09 R)
• M64: 25,224,295 km (0.116 R)
• M65: 25,873,700 km (0.102 R)
• M66: 27,331,232 km (0.088 R)
• M67: 27,473,649 km (0.096 R)
• M68: 27,616,365 km (0.056 R)
• M69: 27,854,824 km (0.051 R)
• M70: 27,998,139 km (0.12 R)
• M71: 28,622,261 km (0.09 R)
• M72: 29,737,813 km (0.101 R)
• M73: 31,114,861 km (0.05 R)
• M74: 31,811,090 km (0.114 R)
• M75: 31,960,987 km (0.094 R)
• M76: 32,412,024 km (0.055 R)
• M77: 32,613,233 km (0.095 R)
• M78: 32,764,327 km (0.053 R)
• M79: 32,865,306 km (0.039 R)
• M80: 33,930,742 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 223.4

Radius: 8.5

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 4.26 AU - 6.78 AU

Year: 8374 Days

Day: 9 Hours

Environment

Temp: -218 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 41,491,435 km

• M1: 119,230 km (0.079 R)
• M2: 176,226 km (0.095 R)
• M3: 249,978 km (0.099 R)
• M4: 432,188 km (0.049 R)
• M5: 589,715 km (0.099 R)
• M6: 829,520 km (0.106 R)
• M7: 974,481 km (0.091 R)
• M8: 1,029,233 km (0.084 R)
• M9: 1,200,373 km (0.038 R)
• M10: 1,304,643 km (0.083 R)
• M11: 1,380,938 km (0.118 R)
• M12: 1,443,171 km (0.118 R)
• M13: 1,570,478 km (0.087 R)
• M14: 1,701,676 km (0.115 R)
• M15: 1,922,632 km (0.109 R)
• M16: 2,045,452 km (0.097 R)
• M17: 2,207,317 km (0.068 R)
• M18: 2,659,401 km (0.025 R)
• M19: 3,669,187 km (0.119 R)
• M20: 3,756,552 km (0.111 R)
• M21: 4,180,512 km (0.075 R)
• M22: 4,248,879 km (0.118 R)
• M23: 4,340,582 km (0.101 R)
• M24: 4,761,551 km (0.12 R)
• M25: 4,928,801 km (0.059 R)
• M26: 5,097,996 km (0.083 R)
• M27: 5,367,871 km (0.117 R)
• M28: 5,617,250 km (0.117 R)
• M29: 5,819,507 km (0.112 R)
• M30: 5,921,533 km (0.068 R)
• M31: 5,998,426 km (0.102 R)
• M32: 6,231,200 km (0.079 R)
• M33: 7,109,938 km (0.031 R)
• M34: 7,745,131 km (0.084 R)
• M35: 8,340,979 km (0.118 R)
• M36: 8,630,002 km (0.114 R)
• M37: 8,746,539 km (0.068 R)
• M38: 8,892,845 km (0.094 R)
• M39: 9,788,039 km (0.09 R)
• M40: 9,940,031 km (0.11 R)
• M41: 10,154,255 km (0.114 R)
• M42: 10,277,224 km (0.068 R)
• M43: 10,338,858 km (0.089 R)
• M44: 10,587,041 km (0.036 R)
• M45: 10,931,266 km (0.107 R)
• M46: 10,994,247 km (0.066 R)
• M47: 11,374,824 km (0.109 R)
• M48: 12,051,305 km (0.072 R)
• M49: 12,410,789 km (0.093 R)
• M50: 12,740,652 km (0.082 R)
• M51: 13,140,228 km (0.071 R)
• M52: 13,207,248 km (0.039 R)
• M53: 14,329,382 km (0.093 R)
• M54: 14,536,724 km (0.093 R)
• M55: 15,481,884 km (0.107 R)
• M56: 15,552,793 km (0.057 R)
• M57: 16,051,403 km (0.077 R)
• M58: 16,230,771 km (0.09 R)
• M59: 16,881,970 km (0.055 R)
• M60: 17,100,981 km (0.103 R)
• M61: 17,800,651 km (0.096 R)
• M62: 18,359,548 km (0.111 R)
• M63: 18,697,639 km (0.092 R)
• M64: 18,886,432 km (0.076 R)
• M65: 19,532,844 km (0.092 R)
• M66: 20,380,316 km (0.09 R)
• M67: 21,200,262 km (0.094 R)
• M68: 21,436,627 km (0.116 R)
• M69: 21,991,336 km (0.072 R)
• M70: 22,751,742 km (0.108 R)
• M71: 23,074,424 km (0.089 R)
• M72: 24,628,148 km (0.067 R)
• M73: 24,876,480 km (0.05 R)
• M74: 25,125,710 km (0.027 R)
• M75: 25,375,838 km (0.094 R)
• M76: 26,257,568 km (0.051 R)
• M77: 26,341,941 km (0.059 R)
• M78: 27,063,900 km (0.061 R)
• M79: 27,620,255 km (0.117 R)
• M80: 28,094,031 km (0.046 R)
• M81: 29,180,710 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 404.8

Radius: 6.9

Gravity: 8.5 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 6.37 AU - 7.53 AU

Year: 11830 Days

Day: 25 Hours

Environment

Temp: -233 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (89)

Outer Limit: 41,491,435 km

• M1: 117,883 km (0.115 R)
• M2: 603,029 km (0.081 R)
• M3: 696,976 km (0.097 R)
• M4: 1,218,325 km (0.097 R)
• M5: 1,298,360 km (0.096 R)
• M6: 1,442,423 km (0.048 R)
• M7: 2,852,831 km (0.047 R)
• M8: 3,178,057 km (0.118 R)
• M9: 3,261,234 km (0.094 R)
• M10: 3,345,158 km (0.097 R)
• M11: 3,630,142 km (0.054 R)
• M12: 3,834,343 km (0.09 R)
• M13: 3,893,434 km (0.07 R)
• M14: 3,952,825 km (0.12 R)
• M15: 4,345,818 km (0.099 R)
• M16: 4,625,267 km (0.052 R)
• M17: 5,039,204 km (0.079 R)
• M18: 5,136,443 km (0.118 R)
• M19: 5,365,776 km (0.091 R)
• M20: 6,351,178 km (0.1 R)
• M21: 6,810,742 km (0.117 R)
• M22: 7,244,576 km (0.086 R)
• M23: 7,575,786 km (0.09 R)
• M24: 7,687,236 km (0.116 R)
• M25: 8,329,460 km (0.116 R)
• M26: 8,483,097 km (0.1 R)
• M27: 9,185,908 km (0.064 R)
• M28: 9,344,631 km (0.092 R)
• M29: 9,584,436 km (0.117 R)
• M30: 10,070,031 km (0.105 R)
• M31: 11,361,360 km (0.091 R)
• M32: 11,489,116 km (0.034 R)
• M33: 11,746,126 km (0.083 R)
• M34: 12,221,996 km (0.088 R)
• M35: 12,396,577 km (0.032 R)
• M36: 13,058,697 km (0.084 R)
• M37: 13,103,277 km (0.101 R)
• M38: 13,371,656 km (0.103 R)
• M39: 14,005,053 km (0.114 R)
• M40: 14,417,345 km (0.071 R)
• M41: 14,694,400 km (0.111 R)
• M42: 14,880,051 km (0.066 R)
• M43: 15,066,600 km (0.12 R)
• M44: 15,394,818 km (0.082 R)
• M45: 15,536,188 km (0.051 R)
• M46: 15,630,584 km (0.09 R)
• M47: 16,441,554 km (0.112 R)
• M48: 16,489,724 km (0.089 R)
• M49: 18,054,518 km (0.095 R)
• M50: 18,153,851 km (0.12 R)
• M51: 18,303,299 km (0.054 R)
• M52: 18,353,116 km (0.054 R)
• M53: 18,453,047 km (0.104 R)
• M54: 18,703,623 km (0.118 R)
• M55: 19,056,375 km (0.038 R)
• M56: 19,360,358 km (0.11 R)
• M57: 20,024,722 km (0.107 R)
• M58: 22,863,043 km (0.084 R)
• M59: 23,186,174 km (0.111 R)
• M60: 24,328,803 km (0.111 R)
• M61: 25,100,728 km (0.062 R)
• M62: 25,211,580 km (0.116 R)
• M63: 25,434,032 km (0.05 R)
• M64: 25,712,882 km (0.058 R)
• M65: 27,065,396 km (0.051 R)
• M66: 27,236,088 km (0.096 R)
• M67: 27,922,443 km (0.099 R)
• M68: 28,962,746 km (0.113 R)
• M69: 30,961,823 km (0.073 R)
• M70: 31,379,051 km (0.077 R)
• M71: 32,701,945 km (0.096 R)
• M72: 32,944,443 km (0.114 R)
• M73: 33,248,426 km (0.108 R)
• M74: 33,797,899 km (0.03 R)
• M75: 34,350,364 km (0.088 R)
• M76: 35,029,688 km (0.105 R)
• M77: 36,150,924 km (0.074 R)
• M78: 36,338,819 km (0.117 R)
• M79: 36,589,994 km (0.054 R)
• M80: 37,981,852 km (0.118 R)
• M81: 38,172,889 km (0.074 R)
• M82: 38,364,374 km (0.059 R)
• M83: 38,556,158 km (0.108 R)
• M84: 39,004,802 km (0.062 R)
• M85: 39,455,242 km (0.07 R)
• M86: 42,656,187 km (0.032 R)
• M87: 43,386,075 km (0.068 R)
• M88: 44,120,152 km (0.104 R)
• M89: 44,791,098 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 278.5

Radius: 5.8

Gravity: 8.28 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 6.13 AU - 8.39 AU

Year: 12630 Days

Day: 18.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 41,491,435 km

• M1: 86,767 km (0.057 R)
• M2: 216,618 km (0.047 R)
• M3: 309,219 km (0.047 R)
• M4: 480,808 km (0.114 R)
• M5: 577,448 km (0.102 R)
• M6: 620,981 km (0.081 R)
• M7: 1,062,594 km (0.116 R)
• M8: 1,190,500 km (0.07 R)
• M9: 1,265,897 km (0.101 R)
• M10: 3,235,204 km (0.063 R)
• M11: 3,475,458 km (0.079 R)
• M12: 3,611,293 km (0.118 R)
• M13: 3,804,573 km (0.071 R)
• M14: 3,916,622 km (0.066 R)
• M15: 3,973,020 km (0.047 R)
• M16: 4,911,597 km (0.099 R)
• M17: 5,436,985 km (0.084 R)
• M18: 6,077,862 km (0.035 R)
• M19: 6,674,907 km (0.076 R)
• M20: 7,569,802 km (0.112 R)
• M21: 8,575,100 km (0.091 R)
• M22: 9,431,847 km (0.036 R)
• M23: 9,659,834 km (0.103 R)
• M24: 9,928,063 km (0.089 R)
• M25: 10,082,448 km (0.115 R)
• M26: 10,432,806 km (0.03 R)
• M27: 11,629,140 km (0.09 R)
• M28: 11,832,743 km (0.095 R)
• M29: 12,326,117 km (0.104 R)
• M30: 12,450,582 km (0.106 R)
• M31: 12,575,347 km (0.082 R)
• M32: 12,994,370 km (0.114 R)
• M33: 13,631,657 km (0.091 R)
• M34: 13,803,246 km (0.053 R)
• M35: 14,540,763 km (0.045 R)
• M36: 15,157,555 km (0.046 R)
• M37: 15,648,236 km (0.097 R)
• M38: 16,098,825 km (0.059 R)
• M39: 16,189,482 km (0.102 R)
• M40: 16,828,713 km (0.07 R)
• M41: 16,874,640 km (0.063 R)
• M42: 18,699,883 km (0.071 R)
• M43: 18,890,621 km (0.078 R)
• M44: 19,466,573 km (0.089 R)
• M45: 19,563,213 km (0.077 R)
• M46: 19,611,533 km (0.069 R)
• M47: 19,708,323 km (0.097 R)
• M48: 19,756,792 km (0.111 R)
• M49: 19,951,120 km (0.045 R)
• M50: 20,439,557 km (0.069 R)
• M51: 20,586,761 km (0.075 R)
• M52: 21,328,468 km (0.077 R)
• M53: 21,827,825 km (0.056 R)
• M54: 22,028,735 km (0.07 R)
• M55: 22,230,094 km (0.107 R)
• M56: 22,990,949 km (0.112 R)
• M57: 23,811,942 km (0.104 R)
• M58: 24,956,216 km (0.112 R)
• M59: 25,429,544 km (0.118 R)
• M60: 25,535,160 km (0.058 R)
• M61: 25,640,925 km (0.049 R)
• M62: 25,746,841 km (0.116 R)
• M63: 26,438,432 km (0.111 R)
• M64: 26,545,394 km (0.067 R)
• M65: 26,706,212 km (0.086 R)
• M66: 27,244,166 km (0.094 R)
• M67: 28,276,391 km (0.083 R)
• M68: 28,714,713 km (0.049 R)
• M69: 30,043,441 km (0.118 R)
• M70: 30,378,690 km (0.118 R)
• M71: 30,434,640 km (0.068 R)
• M72: 30,490,739 km (0.057 R)
• M73: 30,940,280 km (0.069 R)
• M74: 31,222,272 km (0.08 R)
• M75: 32,416,363 km (0.092 R)
• M76: 32,588,101 km (0.097 R)
• M77: 33,336,090 km (0.047 R)
• M78: 33,857,140 km (0.067 R)
• M79: 35,377,652 km (0.092 R)
• M80: 36,264,917 km (0.116 R)
• M81: 36,681,547 km (0.116 R)
• M82: 36,920,306 km (0.104 R)
• M83: 37,279,341 km (0.114 R)
• M84: 37,639,572 km (0.074 R)
• M85: 37,759,999 km (0.057 R)
• M86: 37,940,713 km (0.104 R)
• M87: 38,363,626 km (0.103 R)
• M88: 38,424,213 km (0.102 R)
• M89: 39,274,976 km (0.108 R)
• M90: 39,519,270 km (0.116 R)
• M91: 39,641,641 km (0.116 R)
• M92: 39,825,347 km (0.065 R)
• M93: 40,748,066 km (0.113 R)
• M94: 41,367,252 km (0.083 R)
• M95: 41,429,335 km (0.105 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 309 - 13,178 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit